Registry cleanup, stage 2.

(1) Checkers now have an _exec attribute, and an accessor getExec().
(2) CreateAndRegisterChecker() initializes _exec from an optional argument
'exec'.  If this argument is missing, 'name' is used instead.
(3) Functions SyntaxCheckers_*_IsAvailable() are now dictionary functions.
(4) Functions SyntaxCheckers_*_IsAvailable() are now optional.  When
they are missing, they are assumed to return executable(expand(self.getExec())).
(5) Argument 'exe' of function syntastic#makeprg#build() is now optional.
If this argument is missing, expand(self.getExec()) is used to set checker
executables.

autoload/syntastic/c.vim

@@ -67,7 +67,7 @@ function! syntastic#c#GetLocList(filetype, subchecker, options)
         return []
     endtry
 
-    let makeprg = g:syntastic_{a:filetype}_compiler . ' ' . flags . ' ' . syntastic#util#shexpand('%')
+    let makeprg = expand(g:syntastic_{a:filetype}_compiler) . ' ' . flags . ' ' . syntastic#util#shexpand('%')
 
     let errorformat = s:GetCheckerVar('g', a:filetype, a:subchecker, 'errorformat', a:options['errorformat'])
 

doc/syntastic.txt

@@ -449,14 +449,13 @@ Checkers that use 'syntastic#makeprg#build()' look like this: >
                 \ 'args': '-a -b -c',
                 \ 'post_args': '--more --args',
                 \ 'tail': '> /tmp/output',
-                \ 'filetype': 'ruby',
-                \ 'subchecker': 'mri' })
+                \ 'checker': self })
 <
 
-The 'filetype' and 'subchecker' parameters are mandatory.  All of the other
-parameters above are optional (well, you probably need at least 'exe'), and
-can be overriden by setting global variables - even parameters not specified
-in the call to syntastic#makeprg#build().
+The 'checker' argument is mandatory.  All other arguments above are optional,
+and can be overriden by setting global variables - even parameters not
+specified in the call to syntastic#makeprg#build().  If 'exe' is the same as
+the name of the checker, it may be omitted.
 
 E.g. To override the checker exe above, you could do this: >
     let g:syntastic_ruby_mri_exe="another_ruby_checker_exe.rb"

plugin/syntastic/checker.vim

@@ -12,6 +12,7 @@ function! g:SyntasticChecker.New(args)
 
     let newObj._filetype = a:args['filetype']
     let newObj._name = a:args['name']
+    let newObj._exec = get(a:args, 'exec', newObj._name)
 
     if has_key(a:args, 'redirect')
         let [filetype, name] = split(a:args['redirect'], '/')
@@ -21,7 +22,12 @@ function! g:SyntasticChecker.New(args)
     endif
 
     let newObj._locListFunc = function(prefix . 'GetLocList')
+
+    if exists('*' . prefix . 'IsAvailable')
         let newObj._isAvailableFunc = function(prefix . 'IsAvailable')
+    else
+        let newObj._isAvailableFunc = function('SyntasticCheckerIsAvailableDefault')
+    endif
 
     if exists('*' . prefix . 'GetHighlightRegex')
         let newObj._highlightRegexFunc = function(prefix. 'GetHighlightRegex')
@@ -40,6 +46,14 @@ function! g:SyntasticChecker.getName()
     return self._name
 endfunction
 
+function! g:SyntasticChecker.getExec()
+    if exists('g:syntastic_' . self._filetype . '_' . self._name . '_exec')
+        return expand(g:syntastic_{self._filetype}_{self._name}_exec)
+    endif
+
+    return self._exec
+endfunction
+
 function! g:SyntasticChecker.getLocList()
     try
         let list = self._locListFunc()
@@ -85,4 +99,9 @@ function! g:SyntasticChecker._populateHighlightRegexes(list)
     return list
 endfunction
 
+" Non-method functions
+function! SyntasticCheckerIsAvailableDefault() dict
+    return executable(self.getExec())
+endfunction
+
 " vim: set sw=4 sts=4 et fdm=marker:

plugin/syntastic/makeprg_builder.vim

@@ -9,7 +9,7 @@ let g:SyntasticMakeprgBuilder = {}
 
 function! g:SyntasticMakeprgBuilder.New(checker, exe, args, fname, post_args, tail)
     let newObj = copy(self)
-    let newObj._exe = a:exe
+    let newObj._exe = (a:exe == '' && has_key(a:checker, 'getExec')) ? a:checker.getExec() : a:exe
     let newObj._args = a:args
     let newObj._fname = a:fname
     let newObj._post_args = a:post_args

syntax_checkers/ada/gcc.vim

@@ -16,8 +16,8 @@ if !exists('g:syntastic_ada_compiler')
     let g:syntastic_ada_compiler = 'gcc'
 endif
 
-function! SyntaxCheckers_ada_gcc_IsAvailable()
-    return executable(g:syntastic_ada_compiler)
+function! SyntaxCheckers_ada_gcc_IsAvailable() dict
+    return executable(expand(g:syntastic_ada_compiler))
 endfunction
 
 let s:save_cpo = &cpo

syntax_checkers/applescript/osacompile.vim

@@ -30,13 +30,8 @@ if exists("g:loaded_syntastic_applescript_osacompile_checker")
 endif
 let g:loaded_syntastic_applescript_osacompile_checker=1
 
-function! SyntaxCheckers_applescript_osacompile_IsAvailable()
-    return executable('osacompile')
-endfunction
-
 function! SyntaxCheckers_applescript_osacompile_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'osacompile',
         \ 'args': '-o ' . tempname() . '.scpt ',
         \ 'checker': self })
     let errorformat = '%f:%l:%m'

syntax_checkers/asciidoc/asciidoc.vim

@@ -15,13 +15,8 @@ if exists("g:loaded_syntastic_asciidoc_asciidoc_checker")
 endif
 let g:loaded_syntastic_asciidoc_asciidoc_checker = 1
 
-function! SyntaxCheckers_asciidoc_asciidoc_IsAvailable()
-    return executable("asciidoc")
-endfunction
-
 function! SyntaxCheckers_asciidoc_asciidoc_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'asciidoc',
         \ 'args': syntastic#c#NullOutput(),
         \ 'checker': self })
 

syntax_checkers/c/checkpatch.vim

@@ -20,11 +20,10 @@ elseif executable("./scripts/checkpatch.pl")
     let g:syntastic_c_checker_checkpatch_location = './scripts/checkpatch.pl'
 endif
 
-function! SyntaxCheckers_c_checkpatch_IsAvailable()
+function! SyntaxCheckers_c_checkpatch_IsAvailable() dict
     return exists("g:syntastic_c_checker_checkpatch_location")
 endfunction
 
-
 function! SyntaxCheckers_c_checkpatch_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
         \ 'exe': g:syntastic_c_checker_checkpatch_location,
@@ -44,4 +43,5 @@ endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({
     \ 'filetype': 'c',
-    \ 'name': 'checkpatch'})
+    \ 'name': 'checkpatch',
+    \ 'exec': 'checkpatch.pl'})

syntax_checkers/c/gcc.vim

@@ -20,8 +20,8 @@ if !exists('g:syntastic_c_compiler')
     let g:syntastic_c_compiler = 'gcc'
 endif
 
-function! SyntaxCheckers_c_gcc_IsAvailable()
-    return executable(g:syntastic_c_compiler)
+function! SyntaxCheckers_c_gcc_IsAvailable() dict
+    return executable(expand(g:syntastic_c_compiler))
 endfunction
 
 let s:save_cpo = &cpo

syntax_checkers/c/make.vim

@@ -15,16 +15,11 @@ if exists('g:loaded_syntastic_c_make_checker')
 endif
 let g:loaded_syntastic_c_make_checker = 1
 
-function! SyntaxCheckers_c_make_IsAvailable()
-    return executable('make')
-endfunction
-
 let s:save_cpo = &cpo
 set cpo&vim
 
 function! SyntaxCheckers_c_make_GetLocList() dict
-
-    let makeprg = 'make -sk'
+    let makeprg = expand(self.getExec()) . ' -sk'
 
     let errorformat =
         \ '%-G%f:%s:,' .

syntax_checkers/c/oclint.vim

@@ -21,17 +21,12 @@ if exists("g:loaded_syntastic_c_oclint_checker")
 endif
 let g:loaded_syntastic_c_oclint_checker = 1
 
-function! SyntaxCheckers_c_oclint_IsAvailable()
-    return executable("oclint")
-endfunction
-
 if !exists('g:syntastic_oclint_config_file')
     let g:syntastic_oclint_config_file = '.syntastic_oclint_config'
 endif
 
 function! SyntaxCheckers_c_oclint_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'oclint',
         \ 'args': '-text',
         \ 'post_args': '-- -c ' . syntastic#c#ReadConfig(g:syntastic_oclint_config_file),
         \ 'checker': self })

syntax_checkers/c/sparse.vim

@@ -21,17 +21,12 @@ if exists("g:loaded_syntastic_c_sparse_checker")
 endif
 let g:loaded_syntastic_c_sparse_checker = 1
 
-function! SyntaxCheckers_c_sparse_IsAvailable()
-    return executable("sparse")
-endfunction
-
 if !exists('g:syntastic_sparse_config_file')
     let g:syntastic_sparse_config_file = '.syntastic_sparse_config'
 endif
 
 function! SyntaxCheckers_c_sparse_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'sparse',
         \ 'args': '-ftabstop=' . &ts . ' ' . syntastic#c#ReadConfig(g:syntastic_sparse_config_file),
         \ 'checker': self })
 

syntax_checkers/c/splint.vim

@@ -21,17 +21,12 @@ if exists("g:loaded_syntastic_c_splint_checker")
 endif
 let g:loaded_syntastic_c_splint_checker = 1
 
-function! SyntaxCheckers_c_splint_IsAvailable()
-    return executable("splint")
-endfunction
-
 if !exists('g:syntastic_splint_config_file')
     let g:syntastic_splint_config_file = '.syntastic_splint_config'
 endif
 
 function! SyntaxCheckers_c_splint_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'splint',
         \ 'post_args': '-showfunc -hints +quiet ' . syntastic#c#ReadConfig(g:syntastic_splint_config_file),
         \ 'checker': self })
 

syntax_checkers/c/ycm.vim

@@ -15,7 +15,7 @@ if exists("g:loaded_syntastic_c_ycm_checker")
 endif
 let g:loaded_syntastic_c_ycm_checker = 1
 
-function! SyntaxCheckers_c_ycm_IsAvailable()
+function! SyntaxCheckers_c_ycm_IsAvailable() dict
     return exists('g:loaded_youcompleteme')
 endfunction
 

syntax_checkers/chef/foodcritic.vim

@@ -15,14 +15,8 @@ if exists("g:loaded_syntastic_chef_foodcritic_checker")
 endif
 let g:loaded_syntastic_chef_foodcritic_checker=1
 
-function! SyntaxCheckers_chef_foodcritic_IsAvailable()
-    return executable('foodcritic')
-endfunction
-
 function! SyntaxCheckers_chef_foodcritic_GetLocList() dict
-    let makeprg = syntastic#makeprg#build({
-          \ 'exe': 'foodcritic',
-          \ 'checker': self })
+    let makeprg = syntastic#makeprg#build({ 'checker': self })
 
     " FC023: Prefer conditional attributes: ./recipes/config.rb:49
     let errorformat = 'FC%n: %m: %f:%l'

syntax_checkers/co/coco.vim

@@ -19,13 +19,8 @@ if !executable("coco")
     finish
 endif
 
-function! SyntaxCheckers_co_coco_IsAvailable()
-    return executable('coco')
-endfunction
-
 function! SyntaxCheckers_co_coco_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'coco',
         \ 'args': '-c -o /tmp',
         \ 'checker': self })
 

syntax_checkers/cobol/cobc.vim

@@ -20,8 +20,8 @@ if !exists('g:syntastic_cobol_compiler')
     let g:syntastic_cobol_compiler = 'cobc'
 endif
 
-function! SyntaxCheckers_cobol_cobc_IsAvailable()
-    return executable(g:syntastic_cobol_compiler)
+function! SyntaxCheckers_cobol_cobc_IsAvailable() dict
+    return executable(expand(g:syntastic_cobol_compiler))
 endfunction
 
 let s:save_cpo = &cpo

syntax_checkers/coffee/coffee.vim

@@ -17,14 +17,14 @@ if exists("g:loaded_syntastic_coffee_coffee_checker")
 endif
 let g:loaded_syntastic_coffee_coffee_checker=1
 
-function! SyntaxCheckers_coffee_coffee_IsAvailable()
-    return executable("coffee") &&
-        \ syntastic#util#versionIsAtLeast(syntastic#util#getVersion('coffee --version 2>' . syntastic#util#DevNull()), [1,6,2])
+function! SyntaxCheckers_coffee_coffee_IsAvailable() dict
+    let exe = self.getExec()
+    return executable(exe) &&
+        \ syntastic#util#versionIsAtLeast(syntastic#util#getVersion(exe . ' --version 2>' . syntastic#util#DevNull()), [1,6,2])
 endfunction
 
 function! SyntaxCheckers_coffee_coffee_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'coffee',
         \ 'args': '-cp',
         \ 'checker': self })
 

syntax_checkers/coffee/coffeelint.vim

@@ -14,13 +14,8 @@ if exists("g:loaded_syntastic_coffee_coffeelint_checker")
 endif
 let g:loaded_syntastic_coffee_coffeelint_checker=1
 
-function! SyntaxCheckers_coffee_coffeelint_IsAvailable()
-    return executable('coffeelint')
-endfunction
-
 function! SyntaxCheckers_coffee_coffeelint_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'coffeelint',
         \ 'args': '--csv',
         \ 'checker': self })
 

syntax_checkers/coq/coqtop.vim

@@ -15,13 +15,8 @@ if exists("g:loaded_syntastic_coq_coqtop_checker")
 endif
 let g:loaded_syntastic_coq_coqtop_checker=1
 
-function! SyntaxCheckers_coq_coqtop_IsAvailable()
-    return executable('coqtop')
-endfunction
-
 function! SyntaxCheckers_coq_coqtop_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'coqtop',
         \ 'args': '-noglob -batch -load-vernac-source',
         \ 'checker': self })
 

syntax_checkers/cpp/cpplint.vim

@@ -35,14 +35,8 @@ if ! exists('g:syntastic_cpp_cpplint_args')
     let g:syntastic_cpp_cpplint_args = '--verbose=3'
 endif
 
-function! SyntaxCheckers_cpp_cpplint_IsAvailable()
-    return executable('cpplint.py')
-endfunction
-
 function! SyntaxCheckers_cpp_cpplint_GetLocList() dict
-    let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'cpplint.py',
-        \ 'checker': self })
+    let makeprg = syntastic#makeprg#build({ 'checker': self })
 
     let errorformat = '%A%f:%l:  %m [%t],%-G%.%#'
 
@@ -61,4 +55,5 @@ endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({
     \ 'filetype': 'cpp',
-    \ 'name': 'cpplint'})
+    \ 'name': 'cpplint',
+    \ 'exec': 'cpplint.py'})

syntax_checkers/cpp/gcc.vim

@@ -19,8 +19,8 @@ if !exists('g:syntastic_cpp_compiler')
     let g:syntastic_cpp_compiler = 'g++'
 endif
 
-function! SyntaxCheckers_cpp_gcc_IsAvailable()
-    return executable(g:syntastic_cpp_compiler)
+function! SyntaxCheckers_cpp_gcc_IsAvailable() dict
+    return executable(expand(g:syntastic_cpp_compiler))
 endfunction
 
 let s:save_cpo = &cpo

syntax_checkers/cs/mcs.vim

@@ -15,13 +15,8 @@ if exists("g:loaded_syntastic_cs_mcs_checker")
 endif
 let g:loaded_syntastic_cs_mcs_checker=1
 
-function! SyntaxCheckers_cs_mcs_IsAvailable()
-    return executable('mcs')
-endfunction
-
 function! SyntaxCheckers_cs_mcs_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'mcs',
         \ 'args': '--parse',
         \ 'checker': self })
 

syntax_checkers/css/csslint.vim

@@ -19,21 +19,12 @@ if exists('g:loaded_syntastic_css_csslint_checker')
 endif
 let g:loaded_syntastic_css_csslint_checker=1
 
-if !exists('g:syntastic_csslint_exec')
-    let g:syntastic_csslint_exec = 'csslint'
-endif
-
 if !exists('g:syntastic_csslint_options')
     let g:syntastic_csslint_options = ''
 endif
 
-function! SyntaxCheckers_css_csslint_IsAvailable()
-    return executable(expand(g:syntastic_csslint_exec))
-endfunction
-
 function! SyntaxCheckers_css_csslint_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': expand(g:syntastic_csslint_exec),
         \ 'args': '--format=compact ' . g:syntastic_csslint_options,
         \ 'checker': self })
 

syntax_checkers/css/prettycss.vim

@@ -20,10 +20,6 @@ if exists("g:loaded_syntastic_css_prettycss_checker")
 endif
 let g:loaded_syntastic_css_prettycss_checker=1
 
-function! SyntaxCheckers_css_prettycss_IsAvailable()
-    return executable('prettycss')
-endfunction
-
 function! SyntaxCheckers_css_prettycss_GetHighlightRegex(item)
     let term = matchstr(a:item["text"], '\m (\zs[^)]\+\ze)$')
     if term != ''
@@ -33,9 +29,7 @@ function! SyntaxCheckers_css_prettycss_GetHighlightRegex(item)
 endfunction
 
 function! SyntaxCheckers_css_prettycss_GetLocList() dict
-    let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'prettycss',
-        \ 'checker': self })
+    let makeprg = syntastic#makeprg#build({ 'checker': self })
 
     " Print CSS Lint's error/warning messages from compact format. Ignores blank lines.
     let errorformat =

syntax_checkers/cucumber/cucumber.vim

@@ -15,13 +15,8 @@ if exists("g:loaded_syntastic_cucumber_cucumber_checker")
 endif
 let g:loaded_syntastic_cucumber_cucumber_checker=1
 
-function! SyntaxCheckers_cucumber_cucumber_IsAvailable()
-    return executable('cucumber')
-endfunction
-
 function! SyntaxCheckers_cucumber_cucumber_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'cucumber',
         \ 'args': '--dry-run --quiet --strict --format pretty',
         \ 'checker': self })
 

syntax_checkers/cuda/nvcc.vim

@@ -24,10 +24,6 @@ if exists("g:loaded_syntastic_cuda_nvcc_checker")
 endif
 let g:loaded_syntastic_cuda_nvcc_checker=1
 
-function! SyntaxCheckers_cuda_nvcc_IsAvailable()
-    return executable('nvcc')
-endfunction
-
 function! SyntaxCheckers_cuda_nvcc_GetLocList() dict
     if exists('g:syntastic_cuda_arch')
         let arch_flag = '-arch=' . g:syntastic_cuda_arch
@@ -35,8 +31,9 @@ function! SyntaxCheckers_cuda_nvcc_GetLocList() dict
         let arch_flag = ''
     endif
     let makeprg =
-        \ 'nvcc ' . arch_flag . ' --cuda -O0 -I . -Xcompiler -fsyntax-only ' .
+        \ self.getExec() . ' ' . arch_flag . ' --cuda -O0 -I . -Xcompiler -fsyntax-only ' .
         \ syntastic#util#shexpand('%') . ' ' . syntastic#c#NullOutput()
+
     let errorformat =
         \ '%*[^"]"%f"%*\D%l: %m,'.
         \ '"%f"%*\D%l: %m,'.
@@ -57,7 +54,8 @@ function! SyntaxCheckers_cuda_nvcc_GetLocList() dict
         if exists('g:syntastic_cuda_check_header')
             let makeprg =
                 \ 'echo > .syntastic_dummy.cu ; ' .
-                \ 'nvcc ' . arch_flag . ' --cuda -O0 -I . .syntastic_dummy.cu -Xcompiler -fsyntax-only -include ' .
+                \ self.getExec() . ' ' . arch_flag .
+                \ ' --cuda -O0 -I . .syntastic_dummy.cu -Xcompiler -fsyntax-only -include ' .
                 \ syntastic#util#shexpand('%') . ' ' . syntastic#c#NullOutput()
         else
             return []

syntax_checkers/d/dmd.vim

@@ -24,8 +24,8 @@ if !exists('g:syntastic_d_compiler')
     let g:syntastic_d_compiler = 'dmd'
 endif
 
-function! SyntaxCheckers_d_dmd_IsAvailable()
-    return executable(g:syntastic_d_compiler)
+function! SyntaxCheckers_d_dmd_IsAvailable() dict
+    return executable(expand(g:syntastic_d_compiler))
 endfunction
 
 let s:save_cpo = &cpo

syntax_checkers/dart/dart_analyzer.vim

@@ -17,10 +17,6 @@ if !exists("g:syntastic_dart_analyzer_conf")
     let g:syntastic_dart_analyzer_conf = ''
 endif
 
-function! SyntaxCheckers_dart_dart_analyzer_IsAvailable()
-    return executable("dart_analyzer")
-endfunction
-
 function! SyntaxCheckers_dart_dart_analyzer_GetHighlightRegex(error)
     let lcol = a:error['col'] - 1
     let rcol = a:error['nr'] + lcol + 1
@@ -29,11 +25,9 @@ function! SyntaxCheckers_dart_dart_analyzer_GetHighlightRegex(error)
 endfunction
 
 function! SyntaxCheckers_dart_dart_analyzer_GetLocList() dict
-    let args = !empty(g:syntastic_dart_analyzer_conf) ? ' ' . g:syntastic_dart_analyzer_conf : ''
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'dart_analyzer',
         \ 'args': '--error_format machine',
-        \ 'post_args': args,
+        \ 'post_args': g:syntastic_dart_analyzer_conf,
         \ 'checker': self })
 
     " Machine readable format looks like:

syntax_checkers/dustjs/swiffer.vim

@@ -15,14 +15,12 @@ endif
 
 let g:loaded_syntastic_dustjs_swiffer_checker = 1
 
-function! SyntaxCheckers_dustjs_swiffer_IsAvailable()
+function! SyntaxCheckers_dustjs_swiffer_IsAvailable() dict
     return executable('swiffer')
 endfunction
 
 function! SyntaxCheckers_dustjs_swiffer_GetLocList() dict
-    let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'swiffer',
-        \ 'checker': self })
+    let makeprg = syntastic#makeprg#build({ 'checker': self })
 
     let errorformat = '%E%f - Line %l\, Column %c: %m'
 

syntax_checkers/elixir/elixir.vim

@@ -15,7 +15,7 @@ endif
 let g:loaded_syntastic_elixir_elixir_checker=1
 
 " TODO: we should probably split this into separate checkers
-function! SyntaxCheckers_elixir_elixir_IsAvailable()
+function! SyntaxCheckers_elixir_elixir_IsAvailable() dict
     return executable('elixir') && executable('mix')
 endfunction
 

syntax_checkers/erlang/escript.vim

@@ -21,10 +21,6 @@ endif
 
 let s:check_file = expand('<sfile>:p:h') . '/erlang_check_file.erl'
 
-function! SyntaxCheckers_erlang_escript_IsAvailable()
-    return executable('escript')
-endfunction
-
 function! SyntaxCheckers_erlang_escript_GetLocList() dict
     if expand('%:e') ==# 'hrl'
         return []
@@ -39,7 +35,6 @@ function! SyntaxCheckers_erlang_escript_GetLocList() dict
         let post_args = g:syntastic_erlc_include_path
     endif
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'escript',
         \ 'args': args,
         \ 'fname': syntastic#util#shexpand('%:p'),
         \ 'post_args': post_args,

syntax_checkers/eruby/ruby.vim

@@ -19,7 +19,7 @@ if !exists("g:syntastic_ruby_exec")
     let g:syntastic_ruby_exec = "ruby"
 endif
 
-function! SyntaxCheckers_eruby_ruby_IsAvailable()
+function! SyntaxCheckers_eruby_ruby_IsAvailable() dict
     return executable(expand(g:syntastic_ruby_exec))
 endfunction
 

syntax_checkers/fortran/gfortran.vim

@@ -19,8 +19,8 @@ if !exists('g:syntastic_fortran_compiler')
     let g:syntastic_fortran_compiler = 'gfortran'
 endif
 
-function! SyntaxCheckers_fortran_gfortran_IsAvailable()
-    return executable(g:syntastic_fortran_compiler)
+function! SyntaxCheckers_fortran_gfortran_IsAvailable() dict
+    return executable(expand(g:syntastic_fortran_compiler))
 endfunction
 
 let s:save_cpo = &cpo

syntax_checkers/go/go.vim

@@ -17,8 +17,8 @@ if exists("g:loaded_syntastic_go_go_checker")
 endif
 let g:loaded_syntastic_go_go_checker=1
 
-function! SyntaxCheckers_go_go_IsAvailable()
-    return executable('go')
+function! SyntaxCheckers_go_go_IsAvailable() dict
+    return executable('go') && executable('gofmt')
 endfunction
 
 function! SyntaxCheckers_go_go_GetLocList() dict

syntax_checkers/go/gofmt.vim

@@ -17,13 +17,8 @@ if exists("g:loaded_syntastic_go_gofmt_checker")
 endif
 let g:loaded_syntastic_go_gofmt_checker=1
 
-function! SyntaxCheckers_go_gofmt_IsAvailable()
-    return executable('gofmt')
-endfunction
-
 function! SyntaxCheckers_go_gofmt_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'gofmt',
         \ 'args': '-l',
         \ 'tail': '1>' . syntastic#util#DevNull(),
         \ 'checker': self })

syntax_checkers/go/golint.vim

@@ -14,14 +14,8 @@ if exists("g:loaded_syntastic_go_golint_checker")
 endif
 let g:loaded_syntastic_go_golint_checker=1
 
-function! SyntaxCheckers_go_golint_IsAvailable()
-    return executable('golint')
-endfunction
-
 function! SyntaxCheckers_go_golint_GetLocList() dict
-    let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'golint',
-        \ 'checker': self })
+    let makeprg = syntastic#makeprg#build({ 'checker': self })
 
     let errorformat = '%f:%l:%c: %m,%-G%.%#'
 

syntax_checkers/go/govet.vim

@@ -14,7 +14,7 @@ if exists("g:loaded_syntastic_go_govet_checker")
 endif
 let g:loaded_syntastic_go_govet_checker=1
 
-function! SyntaxCheckers_go_govet_IsAvailable()
+function! SyntaxCheckers_go_govet_IsAvailable() dict
     return executable('go')
 endfunction
 

syntax_checkers/haml/haml.vim

@@ -19,7 +19,7 @@ if !exists('g:syntastic_haml_interpreter')
     let g:syntastic_haml_interpreter = 'haml'
 endif
 
-function! SyntaxCheckers_haml_haml_IsAvailable()
+function! SyntaxCheckers_haml_haml_IsAvailable() dict
     return executable(expand(g:syntastic_haml_interpreter))
 endfunction
 

syntax_checkers/handlebars/handlebars.vim

@@ -13,13 +13,8 @@ if exists("g:loaded_syntastic_handlebars_handlebars_checker")
 endif
 let g:loaded_syntastic_handlebars_handlebars_checker=1
 
-function! SyntaxCheckers_handlebars_handlebars_IsAvailable()
-    return executable('handlebars')
-endfunction
-
 function! SyntaxCheckers_handlebars_handlebars_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'handlebars',
         \ 'args': '-f ' . syntastic#util#DevNull(),
         \ 'checker': self })
 

syntax_checkers/haskell/ghc-mod.vim

@@ -15,13 +15,9 @@ if exists('g:loaded_syntastic_haskell_ghc_mod_checker')
 endif
 let g:loaded_syntastic_haskell_ghc_mod_checker = 1
 
-function! SyntaxCheckers_haskell_ghc_mod_IsAvailable()
-    return executable('ghc-mod')
-endfunction
-
 function! SyntaxCheckers_haskell_ghc_mod_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'ghc-mod check',
+        \ 'exe': self.getExec() . ' check',
         \ 'checker': self })
 
     let errorformat =
@@ -42,4 +38,5 @@ endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({
     \ 'filetype': 'haskell',
-    \ 'name': 'ghc_mod'})
+    \ 'name': 'ghc_mod',
+    \ 'exec': 'ghc-mod'})

syntax_checkers/haskell/hdevtools.vim

@@ -15,13 +15,9 @@ if exists("g:loaded_syntastic_haskell_hdevtools_checker")
 endif
 let g:loaded_syntastic_haskell_hdevtools_checker=1
 
-function! SyntaxCheckers_haskell_hdevtools_IsAvailable()
-    return executable('hdevtools')
-endfunction
-
 function! SyntaxCheckers_haskell_hdevtools_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'hdevtools check',
+        \ 'exe': self.getExec() . ' check',
         \ 'args': get(g:, 'hdevtools_options', ''),
         \ 'checker': self })
 

syntax_checkers/haskell/hlint.vim

@@ -10,14 +10,8 @@ if exists('g:loaded_syntastic_haskell_hlint_checker')
 endif
 let g:loaded_syntastic_haskell_hlint_checker = 1
 
-function! SyntaxCheckers_haskell_hlint_IsAvailable()
-    return executable('hlint')
-endfunction
-
 function! SyntaxCheckers_haskell_hlint_GetLocList() dict
-    let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'hlint',
-        \ 'checker': self })
+    let makeprg = syntastic#makeprg#build({ 'checker': self })
 
     let errorformat =
         \ '%E%f:%l:%c: Error: %m,' .

syntax_checkers/haxe/haxe.vim

@@ -15,10 +15,6 @@ if exists("g:loaded_syntastic_haxe_haxe_checker")
 endif
 let g:loaded_syntastic_haxe_haxe_checker=1
 
-function! SyntaxCheckers_haxe_haxe_IsAvailable()
-    return executable('haxe')
-endfunction
-
 function! SyntaxCheckers_haxe_haxe_GetLocList() dict
     if exists('b:vaxe_hxml')
         let hxml = b:vaxe_hxml
@@ -31,7 +27,6 @@ function! SyntaxCheckers_haxe_haxe_GetLocList() dict
 
     if !empty(hxml)
         let makeprg = syntastic#makeprg#build({
-            \ 'exe': 'haxe',
             \ 'fname': syntastic#util#shescape(fnameescape(fnamemodify(hxml, ':t'))),
             \ 'checker': self })
 

syntax_checkers/hss/hss.vim

@@ -15,13 +15,8 @@ if exists("g:loaded_syntastic_hss_hss_checker")
 endif
 let g:loaded_syntastic_hss_hss_checker=1
 
-function! SyntaxCheckers_hss_hss_IsAvailable()
-    return executable('hss')
-endfunction
-
 function! SyntaxCheckers_hss_hss_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-	\ 'exe': 'hss',
 	\ 'args' : '-output ' . syntastic#util#DevNull(),
 	\ 'checker': self })
 

syntax_checkers/html/tidy.vim

@@ -42,10 +42,6 @@ if !exists('g:syntastic_html_tidy_empty_tags')
     let g:syntastic_html_tidy_empty_tags = []
 endif
 
-function! SyntaxCheckers_html_tidy_IsAvailable()
-    return executable('tidy')
-endfunction
-
 " TODO: join this with xhtml.vim for DRY's sake?
 function! s:TidyEncOptByFenc()
     let tidy_opts = {
@@ -141,7 +137,6 @@ endfunction
 
 function! SyntaxCheckers_html_tidy_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'tidy',
         \ 'args': s:Args(),
         \ 'tail': '2>&1',
         \ 'checker': self })

syntax_checkers/html/validator.vim

@@ -45,7 +45,7 @@ if !exists('g:syntastic_html_validator_nsfilter')
     let g:syntastic_html_validator_nsfilter = ''
 endif
 
-function! SyntaxCheckers_html_validator_IsAvailable()
+function! SyntaxCheckers_html_validator_IsAvailable() dict
     return executable('curl')
 endfunction
 

syntax_checkers/html/w3.vim

@@ -26,7 +26,7 @@ if !exists('g:syntastic_html_w3_api')
     let g:syntastic_html_w3_api = 'http://validator.w3.org/check'
 endif
 
-function! SyntaxCheckers_html_w3_IsAvailable()
+function! SyntaxCheckers_html_w3_IsAvailable() dict
     return executable('curl')
 endfunction
 

syntax_checkers/java/checkstyle.vim

@@ -23,10 +23,6 @@ if !exists("g:syntastic_java_checkstyle_conf_file")
     let g:syntastic_java_checkstyle_conf_file = 'sun_checks.xml'
 endif
 
-function! SyntaxCheckers_java_checkstyle_IsAvailable()
-    return executable('java')
-endfunction
-
 function! SyntaxCheckers_java_checkstyle_Preprocess(errors)
     let out = copy(a:errors)
     for n in range(len(out))
@@ -48,7 +44,6 @@ function! SyntaxCheckers_java_checkstyle_GetLocList() dict
     endif
 
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'java',
         \ 'args': '-cp ' . g:syntastic_java_checkstyle_classpath .
         \         ' com.puppycrawl.tools.checkstyle.Main -c ' . g:syntastic_java_checkstyle_conf_file .
         \         ' -f xml',
@@ -75,4 +70,5 @@ endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({
     \ 'filetype': 'java',
-    \ 'name': 'checkstyle'})
+    \ 'name': 'checkstyle',
+    \ 'exec': 'java'})

syntax_checkers/java/javac.vim

@@ -161,7 +161,7 @@ function! s:GetMavenProperties()
     let pom = findfile("pom.xml", ".;")
     if s:has_maven && filereadable(pom)
         if !has_key(g:syntastic_java_javac_maven_pom_properties, pom)
-            let mvn_cmd = g:syntastic_java_maven_executable . ' -f ' . pom
+            let mvn_cmd = expand(g:syntastic_java_maven_executable) . ' -f ' . pom
             let mvn_is_managed_tag = 1
             let mvn_settings_output = split(system(mvn_cmd . ' help:effective-pom'), "\n")
             let current_path = 'project'
@@ -196,7 +196,7 @@ function! s:GetMavenClasspath()
     let pom = findfile("pom.xml", ".;")
     if s:has_maven && filereadable(pom)
         if !has_key(g:syntastic_java_javac_maven_pom_ftime, pom) || g:syntastic_java_javac_maven_pom_ftime[pom] != getftime(pom)
-            let mvn_cmd = g:syntastic_java_maven_executable . ' -f ' . pom
+            let mvn_cmd = expand(g:syntastic_java_maven_executable) . ' -f ' . pom
             let mvn_classpath_output = split(system(mvn_cmd . ' dependency:build-classpath'), "\n")
             let mvn_classpath = ''
             let class_path_next = 0
@@ -233,9 +233,9 @@ function! s:GetMavenClasspath()
     return ''
 endfunction
 
-function! SyntaxCheckers_java_javac_IsAvailable()
-    let s:has_maven = executable(g:syntastic_java_maven_executable)
-    return executable(g:syntastic_java_javac_executable)
+function! SyntaxCheckers_java_javac_IsAvailable() dict
+    let s:has_maven = executable(expand(g:syntastic_java_maven_executable))
+    return executable(expand(g:syntastic_java_javac_executable))
 endfunction
 
 function! s:MavenOutputDirectory()
@@ -331,7 +331,6 @@ function! SyntaxCheckers_java_javac_GetLocList() dict
     endif
 
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': g:syntastic_java_javac_executable,
         \ 'args': javac_opts,
         \ 'fname': fname,
         \ 'tail': '2>&1',

syntax_checkers/javascript/closurecompiler.vim

@@ -30,8 +30,8 @@ if !exists("g:syntastic_javascript_closure_compiler_options")
     let g:syntastic_javascript_closure_compiler_options = ""
 endif
 
-function! SyntaxCheckers_javascript_closurecompiler_IsAvailable()
-    return exists("g:syntastic_javascript_closure_compiler_path")
+function! SyntaxCheckers_javascript_closurecompiler_IsAvailable() dict
+    return executable("java") && exists("g:syntastic_javascript_closure_compiler_path")
 endfunction
 
 function! SyntaxCheckers_javascript_closurecompiler_GetLocList() dict
@@ -61,5 +61,6 @@ endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({
     \ 'filetype': 'javascript',
-    \ 'name': 'closurecompiler'})
+    \ 'name': 'closurecompiler',
+    \ 'exec': 'java'})
 

syntax_checkers/javascript/gjslint.vim

@@ -17,13 +17,8 @@ if !exists("g:syntastic_javascript_gjslint_conf")
     let g:syntastic_javascript_gjslint_conf = ""
 endif
 
-function! SyntaxCheckers_javascript_gjslint_IsAvailable()
-    return executable('gjslint')
-endfunction
-
 function! SyntaxCheckers_javascript_gjslint_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'gjslint',
         \ 'args': g:syntastic_javascript_gjslint_conf . " --nosummary --unix_mode --nodebug_indentation --nobeep",
         \ 'checker': self })
 

syntax_checkers/javascript/jshint.vim

@@ -22,7 +22,7 @@ if !exists('g:syntastic_javascript_jshint_conf')
     let g:syntastic_javascript_jshint_conf = ''
 endif
 
-function! SyntaxCheckers_javascript_jshint_IsAvailable()
+function! SyntaxCheckers_javascript_jshint_IsAvailable() dict
     return executable(expand(g:syntastic_jshint_exec))
 endfunction
 

syntax_checkers/javascript/jsl.vim

@@ -17,22 +17,10 @@ if !exists("g:syntastic_javascript_jsl_conf")
     let g:syntastic_javascript_jsl_conf = ""
 endif
 
-function! s:ConfFlag()
-    if !empty(g:syntastic_javascript_jsl_conf)
-        return "-conf " . g:syntastic_javascript_jsl_conf
-    endif
-
-    return ""
-endfunction
-
-function! SyntaxCheckers_javascript_jsl_IsAvailable()
-    return executable('jsl')
-endfunction
-
 function! SyntaxCheckers_javascript_jsl_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'jsl',
-        \ 'args': s:ConfFlag() . " -nologo -nofilelisting -nosummary -nocontext -process",
+        \ 'args': (!empty(g:syntastic_javascript_jsl_conf) ? "-conf " . g:syntastic_javascript_jsl_conf : "") .
+        \       " -nologo -nofilelisting -nosummary -nocontext -process",
         \ 'checker': self })
 
     let errorformat =

syntax_checkers/javascript/jslint.vim

@@ -19,10 +19,6 @@ if !exists("g:syntastic_javascript_jslint_conf")
     let g:syntastic_javascript_jslint_conf = "--white --undef --nomen --regexp --plusplus --bitwise --newcap --sloppy --vars"
 endif
 
-function! SyntaxCheckers_javascript_jslint_IsAvailable()
-    return executable('jslint')
-endfunction
-
 function! SyntaxCheckers_javascript_jslint_HighlightTerm(error)
     let unexpected = matchstr(a:error['text'], '\mExpected.*and instead saw \'\zs.*\ze\'')
     if len(unexpected) < 1i
@@ -33,7 +29,6 @@ endfunction
 
 function! SyntaxCheckers_javascript_jslint_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'jslint',
         \ 'args': g:syntastic_javascript_jslint_conf,
         \ 'checker': self })
 

syntax_checkers/json/jsonlint.vim

@@ -14,13 +14,8 @@ if exists("g:loaded_syntastic_json_jsonlint_checker")
 endif
 let g:loaded_syntastic_json_jsonlint_checker=1
 
-function! SyntaxCheckers_json_jsonlint_IsAvailable()
-    return executable('jsonlint')
-endfunction
-
 function! SyntaxCheckers_json_jsonlint_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'jsonlint',
         \ 'post_args': '--compact',
         \ 'checker': self })
 

syntax_checkers/json/jsonval.vim

@@ -14,15 +14,9 @@ if exists("g:loaded_syntastic_json_jsonval_checker")
 endif
 let g:loaded_syntastic_json_jsonval_checker=1
 
-function! SyntaxCheckers_json_jsonval_IsAvailable()
-    return executable('jsonval')
-endfunction
-
 function! SyntaxCheckers_json_jsonval_GetLocList() dict
     " based on https://gist.github.com/1196345
-    let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'jsonval',
-        \ 'checker': self })
+    let makeprg = syntastic#makeprg#build({ 'checker': self })
 
     let errorformat =
         \ '%E%f:\ %m\ at\ line\ %l,' .

syntax_checkers/less/lessc.vim

@@ -36,8 +36,8 @@ else
     let s:check_file = 'lessc'
 endif
 
-function! SyntaxCheckers_less_lessc_IsAvailable()
-    return executable('lessc')
+function! SyntaxCheckers_less_lessc_IsAvailable() dict
+    return g:syntastic_less_use_less_lint ? executable('node') : executable('lessc')
 endfunction
 
 function! SyntaxCheckers_less_lessc_GetLocList() dict

syntax_checkers/lisp/clisp.vim

@@ -14,15 +14,10 @@ if exists("g:loaded_syntastic_lisp_clisp_checker")
 endif
 let g:loaded_syntastic_lisp_clisp_checker=1
 
-function! SyntaxCheckers_lisp_clisp_IsAvailable()
-    return executable("clisp")
-endfunction
-
 function! SyntaxCheckers_lisp_clisp_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'clisp',
         \ 'args': '-q -c',
-        \ 'tail': '-o /tmp/clisp-vim-compiled-file',
+        \ 'tail': syntastic#c#NullOutput(),
         \ 'checker': self })
 
     let errorformat  =

syntax_checkers/llvm/llvm.vim

@@ -14,13 +14,8 @@ if exists("g:loaded_syntastic_llvm_llvm_checker")
 endif
 let g:loaded_syntastic_llvm_llvm_checker=1
 
-function! SyntaxCheckers_llvm_llvm_IsAvailable()
-    return executable("llc")
-endfunction
-
 function! SyntaxCheckers_llvm_llvm_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'llc',
         \ 'args': syntastic#c#NullOutput(),
         \ 'checker': self })
 
@@ -33,5 +28,6 @@ endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({
     \ 'filetype': 'llvm',
-    \ 'name': 'llvm'})
+    \ 'name': 'llvm',
+    \ 'exec': 'llc'})
 

syntax_checkers/lua/luac.vim

@@ -15,10 +15,6 @@ if exists("g:loaded_syntastic_lua_luac_checker")
 endif
 let g:loaded_syntastic_lua_luac_checker=1
 
-function! SyntaxCheckers_lua_luac_IsAvailable()
-    return executable('luac')
-endfunction
-
 function! SyntaxCheckers_lua_luac_GetHighlightRegex(pos)
     let near = matchstr(a:pos['text'], "\\mnear '[^']\\+'")
     let result = ''
@@ -42,10 +38,8 @@ function! SyntaxCheckers_lua_luac_GetHighlightRegex(pos)
     return result
 endfunction
 
-
 function! SyntaxCheckers_lua_luac_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'luac',
         \ 'args': '-p',
         \ 'checker': self })
 
@@ -55,7 +49,6 @@ function! SyntaxCheckers_lua_luac_GetLocList() dict
         \ 'makeprg': makeprg,
         \ 'errorformat': errorformat,
         \ 'defaults': { 'bufnr': bufnr(''), 'type': 'E' } })
-
 endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({

syntax_checkers/matlab/mlint.vim

@@ -15,13 +15,8 @@ if exists("g:loaded_syntastic_matlab_mlint_checker")
 endif
 let g:loaded_syntastic_matlab_mlint_checker=1
 
-function! SyntaxCheckers_matlab_mlint_IsAvailable()
-    return executable("mlint")
-endfunction
-
 function! SyntaxCheckers_matlab_mlint_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'mlint',
         \ 'args': '-id $*',
         \ 'checker': self })
 

syntax_checkers/nasm/nasm.vim

@@ -14,15 +14,12 @@ if exists("g:loaded_syntastic_nasm_nasm_checker")
 endif
 let g:loaded_syntastic_nasm_nasm_checker=1
 
-function! SyntaxCheckers_nasm_nasm_IsAvailable()
-    return executable("nasm")
-endfunction
-
 function! SyntaxCheckers_nasm_nasm_GetLocList() dict
     let wd = syntastic#util#shescape(expand("%:p:h") . "/")
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'nasm',
-        \ 'args': '-X gnu -f elf -I ' . wd . ' ' . syntastic#c#NullOutput(),
+        \ 'args': '-X gnu -f elf' .
+        \       ' -I ' . syntastic#util#shescape(expand("%:p:h") . "/") .
+        \       ' ' . syntastic#c#NullOutput(),
         \ 'checker': self })
 
     let errorformat = '%f:%l: %t%*[^:]: %m'

syntax_checkers/nroff/mandoc.vim

@@ -14,13 +14,8 @@ if exists("g:loaded_syntastic_nroff_mandoc_checker")
 endif
 let g:loaded_syntastic_nroff_mandoc_checker=1
 
-function! SyntaxCheckers_nroff_mandoc_IsAvailable()
-    return executable("mandoc")
-endfunction
-
 function! SyntaxCheckers_nroff_mandoc_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'mandoc',
         \ 'args': '-Tlint',
         \ 'checker': self })
 

syntax_checkers/objc/gcc.vim

@@ -19,8 +19,8 @@ if !exists('g:syntastic_objc_compiler')
     let g:syntastic_objc_compiler = 'gcc'
 endif
 
-function! SyntaxCheckers_objc_gcc_IsAvailable()
-    return executable(g:syntastic_objc_compiler)
+function! SyntaxCheckers_objc_gcc_IsAvailable() dict
+    return executable(expand(g:syntastic_objc_compiler))
 endfunction
 
 let s:save_cpo = &cpo

syntax_checkers/objcpp/gcc.vim

@@ -19,8 +19,8 @@ if !exists('g:syntastic_objcpp_compiler')
     let g:syntastic_objcpp_compiler = 'gcc'
 endif
 
-function! SyntaxCheckers_objcpp_gcc_IsAvailable()
-    return executable(g:syntastic_objcpp_compiler)
+function! SyntaxCheckers_objcpp_gcc_IsAvailable() dict
+    return executable(expand(g:syntastic_objcpp_compiler))
 endfunction
 
 let s:save_cpo = &cpo

syntax_checkers/ocaml/camlp4o.vim

@@ -53,14 +53,13 @@ if exists("g:loaded_syntastic_ocaml_camlp4o_checker")
 endif
 let g:loaded_syntastic_ocaml_camlp4o_checker=1
 
-if exists('g:syntastic_ocaml_camlp4r') &&
-    \ g:syntastic_ocaml_camlp4r != 0
+if exists('g:syntastic_ocaml_camlp4r') && g:syntastic_ocaml_camlp4r != 0
     let s:ocamlpp="camlp4r"
 else
     let s:ocamlpp="camlp4o"
 endif
 
-function! SyntaxCheckers_ocaml_camlp4o_IsAvailable()
+function! SyntaxCheckers_ocaml_camlp4o_IsAvailable() dict
     return executable(s:ocamlpp)
 endfunction
 

syntax_checkers/perl/perl.vim

@@ -34,8 +34,8 @@ if !exists('g:syntastic_perl_lib_path')
     let g:syntastic_perl_lib_path = []
 endif
 
-function! SyntaxCheckers_perl_perl_IsAvailable()
-    return executable(g:syntastic_perl_interpreter)
+function! SyntaxCheckers_perl_perl_IsAvailable() dict
+    return executable(expand(g:syntastic_perl_interpreter))
 endfunction
 
 function! SyntaxCheckers_perl_perl_Preprocess(errors)
@@ -52,6 +52,7 @@ function! SyntaxCheckers_perl_perl_Preprocess(errors)
 endfunction
 
 function! SyntaxCheckers_perl_perl_GetLocList() dict
+    let exe = expand(g:syntastic_perl_interpreter)
     if type(g:syntastic_perl_lib_path) == type('')
         call syntastic#util#deprecationWarn('variable g:syntastic_perl_lib_path should be a list')
         let includes = split(g:syntastic_perl_lib_path, ',')
@@ -65,7 +66,7 @@ function! SyntaxCheckers_perl_perl_GetLocList() dict
     let errorformat = '%f:%l:%m'
 
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': g:syntastic_perl_interpreter,
+        \ 'exe': exe,
         \ 'args': '-c -X ' . extra,
         \ 'checker': self })
 
@@ -79,7 +80,7 @@ function! SyntaxCheckers_perl_perl_GetLocList() dict
     endif
 
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': g:syntastic_perl_interpreter,
+        \ 'exe': exe,
         \ 'args': '-c -Mwarnings ' . extra,
         \ 'checker': self })
 

syntax_checkers/perl/perlcritic.vim

@@ -33,13 +33,8 @@ if !exists('g:syntastic_perl_perlcritic_thres')
     let g:syntastic_perl_perlcritic_thres = 5
 endif
 
-function! SyntaxCheckers_perl_perlcritic_IsAvailable()
-    return executable('perlcritic')
-endfunction
-
 function! SyntaxCheckers_perl_perlcritic_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'perlcritic',
         \ 'post_args': '--quiet --nocolor --verbose "\%s:\%f:\%l:\%c:(\%s) \%m (\%e)\n"',
         \ 'checker': self })
 

syntax_checkers/php/php.vim

@@ -15,10 +15,6 @@ if exists("g:loaded_syntastic_php_php_checker")
 endif
 let g:loaded_syntastic_php_php_checker=1
 
-function! SyntaxCheckers_php_php_IsAvailable()
-    return executable("php")
-endfunction
-
 function! SyntaxCheckers_php_php_GetHighlightRegex(item)
     let unexpected = matchstr(a:item['text'], "\\munexpected '[^']\\+'")
     if len(unexpected) < 1
@@ -29,7 +25,6 @@ endfunction
 
 function! SyntaxCheckers_php_php_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'php',
         \ 'args': '-l -d error_reporting=E_ALL -d display_errors=1 -d log_errors=0 -d xdebug.cli_color=0',
         \ 'checker': self })
 

syntax_checkers/php/phpcs.vim

@@ -18,13 +18,8 @@ if exists("g:loaded_syntastic_php_phpcs_checker")
 endif
 let g:loaded_syntastic_php_phpcs_checker=1
 
-function! SyntaxCheckers_php_phpcs_IsAvailable()
-    return executable('phpcs')
-endfunction
-
 function! SyntaxCheckers_php_phpcs_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'phpcs',
         \ 'args': '--report=csv',
         \ 'checker': self })
 

syntax_checkers/php/phpmd.vim

@@ -18,10 +18,6 @@ if exists("g:loaded_syntastic_php_phpmd_checker")
 endif
 let g:loaded_syntastic_php_phpmd_checker=1
 
-function! SyntaxCheckers_php_phpmd_IsAvailable()
-    return executable('phpmd')
-endfunction
-
 function! SyntaxCheckers_php_phpmd_GetHighlightRegex(item)
     let term = matchstr(a:item['text'], '\m\C^The \S\+ \w\+\(()\)\= \(has\|is not\|utilizes\)')
     if term != ''
@@ -60,7 +56,6 @@ endfunction
 
 function! SyntaxCheckers_php_phpmd_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'phpmd',
         \ 'post_args': 'text codesize,design,unusedcode,naming',
         \ 'checker': self })
 

syntax_checkers/pod/podchecker.vim

@@ -14,14 +14,8 @@ if exists("g:loaded_syntastic_pod_podchecker_checker")
 endif
 let g:loaded_syntastic_pod_podchecker_checker=1
 
-function! SyntaxCheckers_pod_podchecker_IsAvailable()
-    return executable("podchecker")
-endfunction
-
 function! SyntaxCheckers_pod_podchecker_GetLocList() dict
-    let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'podchecker',
-        \ 'checker': self })
+    let makeprg = syntastic#makeprg#build({ 'checker': self })
 
     let errorformat =
         \ '%W%[%#]%[%#]%[%#] WARNING: %m at line %l in file %f,' .

syntax_checkers/puppet/puppet.vim

@@ -15,13 +15,8 @@ if exists("g:loaded_syntastic_puppet_puppet_checker")
 endif
 let g:loaded_syntastic_puppet_puppet_checker=1
 
-function! SyntaxCheckers_puppet_puppet_IsAvailable()
-    return executable("puppet")
-endfunction
-
 function! SyntaxCheckers_puppet_puppet_GetLocList() dict
-
-    let ver = syntastic#util#getVersion('puppet --version 2>' . syntastic#util#DevNull())
+    let ver = syntastic#util#getVersion(self.getExec() . ' --version 2>' . syntastic#util#DevNull())
 
     if syntastic#util#versionIsAtLeast(ver, [2,7,0])
         let args = 'parser validate --color=false'
@@ -30,7 +25,6 @@ function! SyntaxCheckers_puppet_puppet_GetLocList() dict
     endif
 
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'puppet',
         \ 'args': args,
         \ 'checker': self })
 
@@ -43,7 +37,6 @@ function! SyntaxCheckers_puppet_puppet_GetLocList() dict
     return SyntasticMake({
         \ 'makeprg': makeprg,
         \ 'errorformat': errorformat })
-
 endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({

syntax_checkers/puppet/puppetlint.vim

@@ -20,7 +20,7 @@ if exists("g:syntastic_puppet_lint_arguments")
     call syntastic#util#deprecationWarn("variable g:syntastic_puppet_lint_arguments is deprecated, please use g:syntastic_puppet_puppetlint_args instead")
 endif
 
-function! SyntaxCheckers_puppet_puppetlint_IsAvailable()
+function! SyntaxCheckers_puppet_puppetlint_IsAvailable() dict
     return
         \ executable("puppet") &&
         \ executable("puppet-lint") &&
@@ -43,4 +43,5 @@ endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({
     \ 'filetype': 'puppet',
-    \ 'name': 'puppetlint'})
+    \ 'name': 'puppetlint',
+    \ 'exec': 'puppet-lint'})

syntax_checkers/python/flake8.vim

@@ -10,10 +10,6 @@ if exists("g:loaded_syntastic_python_flake8_checker")
 endif
 let g:loaded_syntastic_python_flake8_checker=1
 
-function! SyntaxCheckers_python_flake8_IsAvailable()
-    return executable('flake8')
-endfunction
-
 function! SyntaxCheckers_python_flake8_GetHighlightRegex(i)
     return SyntaxCheckers_python_pyflakes_GetHighlightRegex(a:i)
 endfunction
@@ -36,8 +32,8 @@ function! SyntaxCheckers_python_flake8_GetLocList() dict
         \ 'errorformat': errorformat })
 endfunction
 
+runtime! syntax_checkers/python/pyflakes.vim
+
 call g:SyntasticRegistry.CreateAndRegisterChecker({
     \ 'filetype': 'python',
     \ 'name': 'flake8'})
-
-runtime! syntax_checkers/python/pyflakes.vim

syntax_checkers/python/pep257.vim

@@ -10,10 +10,6 @@ if exists("g:loaded_syntastic_python_pep257_checker")
 endif
 let g:loaded_syntastic_python_pep257_checker = 1
 
-function! SyntaxCheckers_python_pep257_IsAvailable()
-    return executable('pep257')
-endfunction
-
 " sanity: kill empty lines here rather than munging errorformat
 function! SyntaxCheckers_python_pep257_Preprocess(errors)
     return filter(copy(a:errors), 'v:val != ""')

syntax_checkers/python/pep8.vim

@@ -17,10 +17,6 @@ if exists("g:loaded_syntastic_python_pep8_checker")
 endif
 let g:loaded_syntastic_python_pep8_checker=1
 
-function! SyntaxCheckers_python_pep8_IsAvailable()
-    return executable('pep8')
-endfunction
-
 function! SyntaxCheckers_python_pep8_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
         \ 'exe': 'pep8',

syntax_checkers/python/py3kwarn.vim

@@ -9,10 +9,6 @@ if exists("g:loaded_syntastic_python_py3kwarn_checker")
 endif
 let g:loaded_syntastic_python_py3kwarn_checker=1
 
-function! SyntaxCheckers_python_py3kwarn_IsAvailable()
-    return executable('py3kwarn')
-endfunction
-
 function! SyntaxCheckers_python_py3kwarn_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
         \ 'exe': 'py3kwarn',

syntax_checkers/python/pyflakes.vim

@@ -11,10 +11,6 @@ if exists("g:loaded_syntastic_python_pyflakes_checker")
 endif
 let g:loaded_syntastic_python_pyflakes_checker=1
 
-function! SyntaxCheckers_python_pyflakes_IsAvailable()
-    return executable('pyflakes')
-endfunction
-
 function! SyntaxCheckers_python_pyflakes_GetHighlightRegex(i)
     if match(a:i['text'], 'is assigned to but never used') > -1
         \ || match(a:i['text'], 'imported but unused') > -1

syntax_checkers/python/pylama.vim

@@ -14,10 +14,6 @@ if exists('g:loaded_syntastic_python_pylama_checker')
 endif
 let g:loaded_syntastic_python_pylama_checker = 1
 
-function! SyntaxCheckers_python_pylama_IsAvailable()
-    return executable('pylama')
-endfunction
-
 function! SyntaxCheckers_python_pylama_GetHighlightRegex(i)
     return SyntaxCheckers_python_pyflakes_GetHighlightRegex(a:i)
 endfunction
@@ -59,8 +55,8 @@ function! SyntaxCheckers_python_pylama_GetLocList() dict
     return loclist
 endfunction
 
+runtime! syntax_checkers/python/pyflakes.vim
+
 call g:SyntasticRegistry.CreateAndRegisterChecker({
     \ 'filetype': 'python',
     \ 'name': 'pylama' })
-
-runtime! syntax_checkers/python/pyflakes.vim

syntax_checkers/python/pylint.vim

@@ -11,8 +11,9 @@ let g:loaded_syntastic_python_pylint_checker = 1
 
 let s:pylint_new = -1
 
-function! SyntaxCheckers_python_pylint_IsAvailable()
-    let s:pylint_new = executable('pylint') ? s:PylintNew() : -1
+function! SyntaxCheckers_python_pylint_IsAvailable() dict
+    let exe = self.getExec()
+    let s:pylint_new = executable(exe) ? s:PylintNew(exe) : -1
     return s:pylint_new >= 0
 endfunction
 
@@ -48,11 +49,11 @@ function! SyntaxCheckers_python_pylint_GetLocList() dict
     return loclist
 endfunction
 
-function! s:PylintNew()
+function! s:PylintNew(exe)
     try
         " On Windows the version is shown as "pylint-script.py 1.0.0".
         " On Gentoo Linux it's "pylint-python2.7 0.28.0".  Oh, joy. :)
-        let pylint_version = filter(split(system('pylint --version'), '\m, \=\|\n'), 'v:val =~# ''\m^pylint\>''')[0]
+        let pylint_version = filter(split(system(a:exe . ' --version'), '\m, \=\|\n'), 'v:val =~# ''\m^pylint\>''')[0]
         let pylint_version = substitute(pylint_version, '\v^\S+\s+', '', '')
         let ret = syntastic#util#versionIsAtLeast(syntastic#util#parseVersion(pylint_version), [1])
     catch /^Vim\%((\a\+)\)\=:E684/

syntax_checkers/python/python.vim

@@ -12,10 +12,6 @@ if exists("g:loaded_syntastic_python_python_checker")
 endif
 let g:loaded_syntastic_python_python_checker=1
 
-function! SyntaxCheckers_python_python_IsAvailable()
-    return executable('python')
-endfunction
-
 function! SyntaxCheckers_python_python_GetLocList() dict
     let fname = "'" . escape(expand('%'), "\\'") . "'"
 

syntax_checkers/rst/rst2pseudoxml.vim

@@ -18,8 +18,8 @@ if exists("g:loaded_syntastic_rst_rst2pseudoxml_checker")
 endif
 let g:loaded_syntastic_rst_rst2pseudoxml_checker=1
 
-function! SyntaxCheckers_rst_rst2pseudoxml_IsAvailable()
-    return executable("rst2pseudoxml.py") || executable("rst2pseudoxml")
+function! SyntaxCheckers_rst_rst2pseudoxml_IsAvailable() dict
+    return executable(s:exe())
 endfunction
 
 function! SyntaxCheckers_rst_rst2pseudoxml_GetLocList() dict

syntax_checkers/ruby/jruby.vim

@@ -14,10 +14,6 @@ if exists("g:loaded_syntastic_ruby_jruby_checker")
 endif
 let g:loaded_syntastic_ruby_jruby_checker=1
 
-function! SyntaxCheckers_ruby_jruby_IsAvailable()
-    return executable('jruby')
-endfunction
-
 function! SyntaxCheckers_ruby_jruby_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
         \ 'exe': s:exe(),

syntax_checkers/ruby/macruby.vim

@@ -13,10 +13,6 @@ if exists("g:loaded_syntastic_ruby_macruby_checker")
 endif
 let g:loaded_syntastic_ruby_macruby_checker=1
 
-function! SyntaxCheckers_ruby_macruby_IsAvailable()
-    return executable('macruby')
-endfunction
-
 function! SyntaxCheckers_ruby_macruby_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
         \ 'exe': 'RUBYOPT= macruby',

syntax_checkers/ruby/mri.vim

@@ -19,10 +19,6 @@ if !exists("g:syntastic_ruby_exec")
     let g:syntastic_ruby_exec = "ruby"
 endif
 
-function! SyntaxCheckers_ruby_mri_IsAvailable()
-    return executable(expand(g:syntastic_ruby_exec))
-endfunction
-
 function! SyntaxCheckers_ruby_mri_GetHighlightRegex(i)
     if match(a:i['text'], 'assigned but unused variable') > -1
         let term = split(a:i['text'], ' - ')[1]
@@ -73,4 +69,5 @@ endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({
     \ 'filetype': 'ruby',
-    \ 'name': 'mri'})
+    \ 'name': 'mri',
+    \ 'exec': 'ruby'})

syntax_checkers/ruby/rubocop.vim

@@ -18,15 +18,15 @@ if exists("g:loaded_syntastic_ruby_rubocop_checker")
 endif
 let g:loaded_syntastic_ruby_rubocop_checker=1
 
-function! SyntaxCheckers_ruby_rubocop_IsAvailable()
+function! SyntaxCheckers_ruby_rubocop_IsAvailable() dict
+    let exe = self.getExec()
     return
-        \ executable('rubocop') &&
-        \ syntastic#util#versionIsAtLeast(syntastic#util#getVersion('rubocop --version'), [0,9,0])
+        \ executable(exe) &&
+        \ syntastic#util#versionIsAtLeast(syntastic#util#getVersion(exe . ' --version'), [0,9,0])
 endfunction
 
 function! SyntaxCheckers_ruby_rubocop_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'rubocop',
         \ 'args': '--format emacs --silent',
         \ 'checker': self })
 

syntax_checkers/ruby/rubylint.vim

@@ -16,13 +16,8 @@ endif
 
 let g:loaded_syntastic_ruby_rubylint_checker = 1
 
-function! SyntaxCheckers_ruby_rubylint_IsAvailable()
-    return executable("ruby-lint")
-endfunction
-
 function! SyntaxCheckers_ruby_rubylint_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'ruby-lint',
         \ 'args': 'analyze --presenter=syntastic',
         \ 'checker': self })
 
@@ -35,6 +30,7 @@ endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({
     \ 'filetype': 'ruby',
-    \ 'name': 'rubylint' })
+    \ 'name': 'rubylint',
+    \ 'exec': 'ruby-lint'})
 
 " vim: set ts=4 sts=4 sw=4:

syntax_checkers/rust/rustc.vim

@@ -15,13 +15,8 @@ if exists("g:loaded_syntastic_rust_rustc_checker")
 endif
 let g:loaded_syntastic_rust_rustc_checker=1
 
-function! SyntaxCheckers_rust_rustc_IsAvailable()
-    return executable("rustc")
-endfunction
-
 function! SyntaxCheckers_rust_rustc_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'rustc',
         \ 'args': '--parse-only',
         \ 'checker': self })
 

syntax_checkers/sass/sass.vim

@@ -15,10 +15,6 @@ if exists("g:loaded_syntastic_sass_sass_checker")
 endif
 let g:loaded_syntastic_sass_sass_checker=1
 
-function! SyntaxCheckers_sass_sass_IsAvailable()
-    return executable("sass")
-endfunction
-
 "sass caching for large files drastically speeds up the checking, but store it
 "in a temp location otherwise sass puts .sass_cache dirs in the users project
 let s:sass_cache_location = tempname()
@@ -40,7 +36,6 @@ function! SyntaxCheckers_sass_sass_GetLocList() dict
     endif
 
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'sass',
         \ 'args': '--cache-location ' . s:sass_cache_location . ' ' . s:imports . ' --check',
         \ 'checker': self })
 

syntax_checkers/scala/fsc.vim

@@ -15,10 +15,6 @@ if exists('g:loaded_syntastic_scala_fsc_checker')
 endif
 let g:loaded_syntastic_scala_fsc_checker = 1
 
-function! SyntaxCheckers_scala_fsc_IsAvailable()
-    return executable('fsc')
-endfunction
-
 if !exists('g:syntastic_scala_options')
     let g:syntastic_scala_options = ''
 endif
@@ -28,7 +24,6 @@ function! SyntaxCheckers_scala_fsc_GetLocList() dict
     " working directory changing after being started
     " that's why we better pass an absolute path
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'fsc',
         \ 'args': '-Ystop-after:parser ' . g:syntastic_scala_options,
         \ 'fname': syntastic#util#shexpand('%:p'),
         \ 'checker': self })

syntax_checkers/scala/scalac.vim

@@ -15,18 +15,12 @@ if exists("g:loaded_syntastic_scala_scalac_checker")
 endif
 let g:loaded_syntastic_scala_scalac_checker=1
 
-function! SyntaxCheckers_scala_scalac_IsAvailable()
-    return executable("scalac")
-endfunction
-
 if !exists('g:syntastic_scala_options')
     let g:syntastic_scala_options = ''
 endif
 
-
 function! SyntaxCheckers_scala_scalac_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'scalac',
         \ 'args': '-Ystop-after:parser ' . g:syntastic_scala_options,
         \ 'checker': self })
 

syntax_checkers/sh/checkbashisms.vim

@@ -11,15 +11,8 @@ if exists("g:loaded_syntastic_sh_checkbashisms_checker")
 endif
 let g:loaded_syntastic_sh_checkbashisms_checker=1
 
-
-function! SyntaxCheckers_sh_checkbashisms_IsAvailable()
-    return executable('checkbashisms')
-endfunction
-
-
 function! SyntaxCheckers_sh_checkbashisms_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'checkbashisms',
         \ 'args': '-fx',
         \ 'checker': self})
 

syntax_checkers/sh/sh.vim

@@ -51,7 +51,7 @@ function! s:IsShellValid()
 endfunction
 
 
-function! SyntaxCheckers_sh_sh_IsAvailable()
+function! SyntaxCheckers_sh_sh_IsAvailable() dict
     return s:IsShellValid()
 endfunction
 

syntax_checkers/sh/shellcheck.vim

@@ -8,10 +8,6 @@ if exists("g:loaded_syntastic_sh_shellcheck_checker")
 endif
 let g:loaded_syntastic_sh_shellcheck_checker = 1
 
-function! SyntaxCheckers_sh_shellcheck_IsAvailable()
-    return executable('jsoncheck')
-endfunction
-
 function! SyntaxCheckers_sh_shellcheck_Preprocess(json)
     " A hat tip to Mark Weber for this trick
     " http://stackoverflow.com/a/19105763
@@ -22,7 +18,7 @@ function! SyntaxCheckers_sh_shellcheck_Preprocess(json)
 endfunction
 
 function! SyntaxCheckers_sh_shellcheck_GetLocList()
-    let makeprg = 'jsoncheck <' . syntastic#util#shexpand('%')
+    let makeprg = expand(self.getExec()) . ' < ' . syntastic#util#shexpand('%')
 
     let errorformat = '%t:%l:%v:%m'
 
@@ -45,4 +41,5 @@ endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({
     \ 'filetype': 'sh',
-    \ 'name': 'shellcheck' })
+    \ 'name': 'shellcheck',
+    \ 'exec': 'jsoncheck' })

syntax_checkers/slim/slimrb.vim

@@ -15,10 +15,6 @@ if exists("g:loaded_syntastic_slim_slimrb_checker")
 endif
 let g:loaded_syntastic_slim_slimrb_checker=1
 
-function! SyntaxCheckers_slim_slimrb_IsAvailable()
-    return executable("slimrb")
-endfunction
-
 function! s:SlimrbVersion()
     if !exists('s:slimrb_version')
         let s:slimrb_version = syntastic#util#getVersion('slimrb --version 2>' . syntastic#util#DevNull())
@@ -28,7 +24,6 @@ endfunction
 
 function! SyntaxCheckers_slim_slimrb_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'slimrb',
         \ 'args': '-c',
         \ 'checker': self })
 

syntax_checkers/tcl/nagelfar.vim

@@ -16,13 +16,8 @@ if exists("g:loaded_syntastic_tcl_nagelfar_checker")
 endif
 let g:loaded_syntastic_tcl_nagelfar_checker=1
 
-function! SyntaxCheckers_tcl_nagelfar_IsAvailable()
-    return executable('nagelfar')
-endfunction
-
 function! SyntaxCheckers_tcl_nagelfar_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'nagelfar',
         \ 'args': '-H',
         \ 'checker': self })
 

syntax_checkers/tex/chktex.vim

@@ -32,13 +32,8 @@ if !exists('g:syntastic_tex_chktex_showmsgs')
     let g:syntastic_tex_chktex_showmsgs = 1
 endif
 
-function! SyntaxCheckers_tex_chktex_IsAvailable()
-    return executable('chktex')
-endfunction
-
 function! SyntaxCheckers_tex_chktex_GetLocList() dict
     let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'chktex',
         \ 'post_args': '-q -v1',
         \ 'checker': self })
 

syntax_checkers/tex/lacheck.vim

@@ -15,14 +15,8 @@ if exists('g:loaded_syntastic_tex_lacheck_checker')
 endif
 let g:loaded_syntastic_tex_lacheck_checker=1
 
-function! SyntaxCheckers_tex_lacheck_IsAvailable()
-    return executable('lacheck')
-endfunction
-
 function! SyntaxCheckers_tex_lacheck_GetLocList() dict
-    let makeprg = syntastic#makeprg#build({
-        \ 'exe': 'lacheck',
-        \ 'checker': self })
+    let makeprg = syntastic#makeprg#build({ 'checker': self })
 
     let errorformat =
         \ '%-G** %f:,' .