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Set up important Lua paths, such as the directories in # which to install scripts and modules (shared libraries). # # Also detect Lua headers and libraries. The Lua version contained in the # header is checked to match the Lua interpreter version exactly. When # searching for Lua libraries, the version number is used as a suffix. # This is done with the goal of supporting multiple Lua installs (5.1 and # 5.2 side-by-side). # # A note on compatibility with previous versions: This file has been # mostly rewritten for serial 18. Most developers should be able to use # these macros without needing to modify configure.ac. Care has been taken # to preserve each macro's behavior, but there are some differences: # # 1) AX_WITH_LUA is deprecated; it now expands to the exact same thing as # AX_PROG_LUA with no arguments. # # 2) AX_LUA_HEADERS now checks that the version number defined in lua.h # matches the interpreter version. AX_LUA_HEADERS_VERSION is therefore # unnecessary, so it is deprecated and does not expand to anything. # # 3) The configure flag --with-lua-suffix no longer exists; the user # should instead specify the LUA precious variable on the command line. # See the AX_PROG_LUA description for details. # # Please read the macro descriptions below for more information. # # This file was inspired by Andrew Dalke's and James Henstridge's # python.m4 and Tom Payne's, Matthieu Moy's, and Reuben Thomas's ax_lua.m4 # (serial 17). Basically, this file is a mash-up of those two files. I # like to think it combines the best of the two! # # AX_PROG_LUA: Search for the Lua interpreter, and set up important Lua # paths. Adds precious variable LUA, which may contain the path of the Lua # interpreter. If LUA is blank, the user's path is searched for an # suitable interpreter. # # If MINIMUM-VERSION is supplied, then only Lua interpreters with a # version number greater or equal to MINIMUM-VERSION will be accepted. If # TOO-BIG- VERSION is also supplied, then only Lua interpreters with a # version number greater or equal to MINIMUM-VERSION and less than # TOO-BIG-VERSION will be accepted. # # Version comparisons require the AX_COMPARE_VERSION macro, which is # provided by ax_compare_version.m4 from the Autoconf Archive. # # The Lua version number, LUA_VERSION, is found from the interpreter, and # substituted. LUA_PLATFORM is also found, but not currently supported (no # standard representation). # # Finally, the macro finds four paths: # # luadir Directory to install Lua scripts. # pkgluadir $luadir/$PACKAGE # luaexecdir Directory to install Lua modules. # pkgluaexecdir $luaexecdir/$PACKAGE # # These paths a found based on $prefix, $exec_prefix, Lua's package.path, # and package.cpath. The first path of package.path beginning with $prefix # is selected as luadir. The first path of package.cpath beginning with # $exec_prefix is used as luaexecdir. This should work on all reasonable # Lua installations. If a path cannot be determined, a default path is # used. Of course, the user can override these later when invoking make. # # luadir Default: $prefix/share/lua/$LUA_VERSION # luaexecdir Default: $exec_prefix/lib/lua/$LUA_VERSION # # These directories can be used by Automake as install destinations. The # variable name minus 'dir' needs to be used as a prefix to the # appropriate Automake primary, e.g. lua_SCRIPS or luaexec_LIBRARIES. # # If an acceptable Lua interpreter is found, then ACTION-IF-FOUND is # performed, otherwise ACTION-IF-NOT-FOUND is preformed. If ACTION-IF-NOT- # FOUND is blank, then it will default to printing an error. To prevent # the default behavior, give ':' as an action. # # AX_LUA_HEADERS: Search for Lua headers. Requires that AX_PROG_LUA be # expanded before this macro. Adds precious variable LUA_INCLUDE, which # may contain Lua specific include flags, e.g. -I/usr/include/lua5.1. If # LUA_INCLUDE is blank, then this macro will attempt to find suitable # flags. # # LUA_INCLUDE can be used by Automake to compile Lua modules or # executables with embedded interpreters. The *_CPPFLAGS variables should # be used for this purpose, e.g. myprog_CPPFLAGS = $(LUA_INCLUDE). # # This macro searches for the header lua.h (and others). The search is # performed with a combination of CPPFLAGS, CPATH, etc, and LUA_INCLUDE. # If the search is unsuccessful, then some common directories are tried. # If the headers are then found, then LUA_INCLUDE is set accordingly. # # The paths automatically searched are: # # * /usr/include/luaX.Y # * /usr/include/lua/X.Y # * /usr/include/luaXY # * /usr/local/include/luaX.Y # * /usr/local/include/lua-X.Y # * /usr/local/include/lua/X.Y # * /usr/local/include/luaXY # # (Where X.Y is the Lua version number, e.g. 5.1.) # # The Lua version number found in the headers is always checked to match # the Lua interpreter's version number. Lua headers with mismatched # version numbers are not accepted. # # If headers are found, then ACTION-IF-FOUND is performed, otherwise # ACTION-IF-NOT-FOUND is performed. If ACTION-IF-NOT-FOUND is blank, then # it will default to printing an error. To prevent the default behavior, # set the action to ':'. # # AX_LUA_LIBS: Search for Lua libraries. Requires that AX_PROG_LUA be # expanded before this macro. Adds precious variable LUA_LIB, which may # contain Lua specific linker flags, e.g. -llua5.1. If LUA_LIB is blank, # then this macro will attempt to find suitable flags. # # LUA_LIB can be used by Automake to link Lua modules or executables with # embedded interpreters. The *_LIBADD and *_LDADD variables should be used # for this purpose, e.g. mymod_LIBADD = $(LUA_LIB). # # This macro searches for the Lua library. More technically, it searches # for a library containing the function lua_load. The search is performed # with a combination of LIBS, LIBRARY_PATH, and LUA_LIB. # # If the search determines that some linker flags are missing, then those # flags will be added to LUA_LIB. # # If libraries are found, then ACTION-IF-FOUND is performed, otherwise # ACTION-IF-NOT-FOUND is performed. If ACTION-IF-NOT-FOUND is blank, then # it will default to printing an error. To prevent the default behavior, # set the action to ':'. # # AX_LUA_READLINE: Search for readline headers and libraries. Requires the # AX_LIB_READLINE macro, which is provided by ax_lib_readline.m4 from the # Autoconf Archive. # # If a readline compatible library is found, then ACTION-IF-FOUND is # performed, otherwise ACTION-IF-NOT-FOUND is performed. # # LICENSE # # Copyright (c) 2013 Tim Perkins # Copyright (c) 2013 Reuben Thomas # # This program is free software: you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the # Free Software Foundation, either version 3 of the License, or (at your # option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General # Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program. If not, see . # # As a special exception, the respective Autoconf Macro's copyright owner # gives unlimited permission to copy, distribute and modify the configure # scripts that are the output of Autoconf when processing the Macro. You # need not follow the terms of the GNU General Public License when using # or distributing such scripts, even though portions of the text of the # Macro appear in them. The GNU General Public License (GPL) does govern # all other use of the material that constitutes the Autoconf Macro. # # This special exception to the GPL applies to versions of the Autoconf # Macro released by the Autoconf Archive. When you make and distribute a # modified version of the Autoconf Macro, you may extend this special # exception to the GPL to apply to your modified version as well. #serial 21 # =========================================================================== # http://www.gnu.org/software/autoconf-archive/ax_python.html # =========================================================================== # # SYNOPSIS # # AX_PYTHON # # DESCRIPTION # # This macro does a complete Python development environment check. # # It recurses through several python versions (from 2.1 to 2.6 in this # version), looking for an executable. When it finds an executable, it # looks to find the header files and library. # # It sets PYTHON_BIN to the name of the python executable, # PYTHON_INCLUDE_DIR to the directory holding the header files, and # PYTHON_LIB to the name of the Python library. # # This macro calls AC_SUBST on PYTHON_BIN (via AC_CHECK_PROG), # PYTHON_INCLUDE_DIR and PYTHON_LIB. # # LICENSE # # Copyright (c) 2008 Michael Tindal # # This program is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the # Free Software Foundation; either version 2 of the License, or (at your # option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General # Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program. If not, see . # # As a special exception, the respective Autoconf Macro's copyright owner # gives unlimited permission to copy, distribute and modify the configure # scripts that are the output of Autoconf when processing the Macro. You # need not follow the terms of the GNU General Public License when using # or distributing such scripts, even though portions of the text of the # Macro appear in them. The GNU General Public License (GPL) does govern # all other use of the material that constitutes the Autoconf Macro. # # This special exception to the GPL applies to versions of the Autoconf # Macro released by the Autoconf Archive. When you make and distribute a # modified version of the Autoconf Macro, you may extend this special # exception to the GPL to apply to your modified version as well. #serial 14 # =========================================================================== # http://www.gnu.org/software/autoconf-archive/ax_check_openssl.html # =========================================================================== # # SYNOPSIS # # AX_CHECK_OPENSSL([action-if-found[, action-if-not-found]]) # # DESCRIPTION # # Look for OpenSSL in a number of default spots, or in a user-selected # spot (via --with-openssl). Sets # # OPENSSL_INCLUDES to the include directives required # OPENSSL_LIBS to the -l directives required # OPENSSL_LDFLAGS to the -L or -R flags required # # and calls ACTION-IF-FOUND or ACTION-IF-NOT-FOUND appropriately # # This macro sets OPENSSL_INCLUDES such that source files should use the # openssl/ directory in include directives: # # #include # # LICENSE # # Copyright (c) 2009,2010 Zmanda Inc. # Copyright (c) 2009,2010 Dustin J. Mitchell # # Copying and distribution of this file, with or without modification, are # permitted in any medium without royalty provided the copyright notice # and this notice are preserved. This file is offered as-is, without any # warranty. #serial 8 # This is what autoupdate's m4 run will expand. It fires # the warning (with _au_warn_XXX), outputs it into the # updated configure.ac (with AC_DIAGNOSE), and then outputs # the replacement expansion. # This is an auxiliary macro that is also run when # autoupdate runs m4. It simply calls m4_warning, but # we need a wrapper so that each warning is emitted only # once. We break the quoting in m4_warning's argument in # order to expand this macro's arguments, not AU_DEFUN's. # Finally, this is the expansion that is picked up by # autoconf. It tells the user to run autoupdate, and # then outputs the replacement expansion. We do not care # about autoupdate's warning because that contains # information on what to do *after* running autoupdate. # =========================================================================== # http://www.gnu.org/software/autoconf-archive/ax_check_zlib.html # =========================================================================== # # SYNOPSIS # # AX_CHECK_ZLIB([action-if-found], [action-if-not-found]) # # DESCRIPTION # # This macro searches for an installed zlib library. If nothing was # specified when calling configure, it searches first in /usr/local and # then in /usr, /opt/local and /sw. If the --with-zlib=DIR is specified, # it will try to find it in DIR/include/zlib.h and DIR/lib/libz.a. If # --without-zlib is specified, the library is not searched at all. # # If either the header file (zlib.h) or the library (libz) is not found, # shell commands 'action-if-not-found' is run. If 'action-if-not-found' is # not specified, the configuration exits on error, asking for a valid zlib # installation directory or --without-zlib. # # If both header file and library are found, shell commands # 'action-if-found' is run. If 'action-if-found' is not specified, the # default action appends '-I${ZLIB_HOME}/include' to CPFLAGS, appends # '-L$ZLIB_HOME}/lib' to LDFLAGS, prepends '-lz' to LIBS, and calls # AC_DEFINE(HAVE_LIBZ). You should use autoheader to include a definition # for this symbol in a config.h file. 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If not, see . # # As a special exception, the respective Autoconf Macro's copyright owner # gives unlimited permission to copy, distribute and modify the configure # scripts that are the output of Autoconf when processing the Macro. You # need not follow the terms of the GNU General Public License when using # or distributing such scripts, even though portions of the text of the # Macro appear in them. The GNU General Public License (GPL) does govern # all other use of the material that constitutes the Autoconf Macro. # # This special exception to the GPL applies to versions of the Autoconf # Macro released by the Autoconf Archive. When you make and distribute a # modified version of the Autoconf Macro, you may extend this special # exception to the GPL to apply to your modified version as well. #serial 14 # This is what autoupdate's m4 run will expand. 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