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Diffstat (limited to 'm4/ax_ruby_devel.m4')
| -rw-r--r-- | m4/ax_ruby_devel.m4 | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/m4/ax_ruby_devel.m4 b/m4/ax_ruby_devel.m4 new file mode 100644 index 0000000..d39e1d3 --- /dev/null +++ b/m4/ax_ruby_devel.m4 @@ -0,0 +1,214 @@ +# =========================================================================== +# http://autoconf-archive.cryp.to/ax_ruby_devel.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_RUBY_DEVEL([version]) +# +# DESCRIPTION +# +# This macro checks for Ruby and tries to get the include path to +# 'ruby.h'. It provides the $(RUBY_CFLAGS) and $(RUBY_LDFLAGS) output +# variables. It also exports $(RUBY_EXTRA_LIBS) for embedding Ruby in your +# code. +# +# You can search for some particular version of Ruby by passing a +# parameter to this macro, for example "1.8.6". +# +# LICENSE +# +# Copyright (c) 2008 Rafal Rzepecki <divided.mind@gmail.com> +# Copyright (c) 2008 Sebastian Huber <sebastian-huber@web.de> +# Copyright (c) 2008 Alan W. Irwin <irwin@beluga.phys.uvic.ca> +# Copyright (c) 2008 Rafael Laboissiere <rafael@laboissiere.net> +# Copyright (c) 2008 Andrew Collier <colliera@ukzn.ac.za> +# Copyright (c) 2008 Matteo Settenvini <matteo@member.fsf.org> +# Copyright (c) 2008 Horst Knorr <hk_classes@knoda.org> +# +# 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 <http://www.gnu.org/licenses/>. +# +# 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. +AC_DEFUN([AX_RUBY_DEVEL],[ + AC_REQUIRE([AX_WITH_RUBY]) + AS_IF([test -n "$1"], [AX_PROG_RUBY_VERSION([$1])]) + + # + # Check if you have mkmf, else fail + # + AC_MSG_CHECKING([for the mkmf Ruby package]) + ac_mkmf_result=`$RUBY -rmkmf -e ";" 2>&1` + if test -z "$ac_mkmf_result"; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + AC_MSG_WARN([cannot import Ruby module "mkmf". +Please check your Ruby installation. The error was: +$ac_distutils_result]) + fi + + # + # Check for Ruby include path + # + if test -z "$RUBY_CFLAGS"; then + # + # Check for Ruby cflags + # + AC_MSG_CHECKING([for Ruby cflags]) + if test -z "$RUBY_CFLAGS"; then + RUBY_CFLAGS=`$RUBY -rmkmf -e 'print RbConfig::CONFIG.fetch(%q(CFLAGS))'` + fi + AC_MSG_RESULT([$RUBY_CFLAGS]) + + # + # Check for Ruby include path + # + AC_MSG_CHECKING([for Ruby include path]) + ruby_path=`$RUBY -rmkmf -e 'c = RbConfig::CONFIG; print c.has_key?(%q(rubyhdrdir)) ? \ + c.fetch(%q(rubyhdrdir)) : c.fetch(%q(archdir))'` + + ruby_arch=`$RUBY -rmkmf -e 'print RbConfig::CONFIG.fetch(%q(arch))'` + + if test -n "${ruby_path}"; then + # + # For some reason ruby 1.9.1 on linux seems to put its + # config.h file in ${ruby_path}/${ruby_arch}/ruby/config.h + # Aside from the fact that it is WRONG to include your own + # config.h file, it means we can't use the headers unless we + # add both paths. + # + if test -d "${ruby_path}/${ruby_arch}"; then + ruby_path=" -I${ruby_path} -I${ruby_path}/${ruby_arch}" + else + ruby_path=" -I${ruby_path}" + fi + fi + + RUBY_CFLAGS="$RUBY_CFLAGS $ruby_path" + AC_MSG_RESULT([$ruby_path]) + fi + + AC_SUBST([RUBY_CFLAGS]) + + if test -z "$RUBY_LDFLAGS"; then + # + # Check for Ruby library path + # + AC_MSG_CHECKING([for Ruby library path]) + if test -z "$RUBY_LIBRARY_PATH"; then + RUBY_LIBRARY_PATH=`$RUBY -rmkmf -e 'print RbConfig::CONFIG.fetch(%q(libdir))'` + if test -n "${RUBY_LIBRARY_PATH}"; then + RUBY_LIBRARY_PATH=" -L$RUBY_LIBRARY_PATH" + fi + fi + + AC_MSG_RESULT([$RUBY_LIBRARY_PATH]) + + # + # Check for Ruby linking flags + # + AC_MSG_CHECKING([for Ruby linking flags]) + + RUBY_LDFLAGS=`$RUBY -rmkmf -e 'print RbConfig::CONFIG.fetch(%q(LIBRUBYARG_SHARED))'` + AC_MSG_RESULT([$RUBY_LDFLAGS]) + + RUBY_LDFLAGS="${RUBY_LIBRARY_PATH} ${RUBY_LDFLAGS}" + fi + + AC_SUBST([RUBY_LDFLAGS]) + + # + # Check for site packages + # + AC_MSG_CHECKING([for Ruby site-packages path]) + if test -z "$RUBY_SITE_PKG"; then + RUBY_SITE_PKG=`$RUBY -rmkmf -e 'print RbConfig::CONFIG.fetch(%q(sitearchdir))'` + fi + AC_MSG_RESULT([$RUBY_SITE_PKG]) + AC_SUBST([RUBY_SITE_PKG]) + + # + # libraries which must be linked in when embedding + # + AC_MSG_CHECKING([for Ruby extra libraries]) + if test -z "$RUBY_EXTRA_LIBS"; then + RUBY_EXTRA_LIBS=`$RUBY -rmkmf -e 'print RbConfig::CONFIG.fetch(%q(SOLIBS))'` + fi + AC_MSG_RESULT([$RUBY_EXTRA_LIBS]) + AC_SUBST(RUBY_EXTRA_LIBS) + + # + # linking flags needed when embedding + # (is it even needed for Ruby?) + # + # AC_MSG_CHECKING([for Ruby extra linking flags]) + # if test -z "$RUBY_EXTRA_LIBS"; then + # RUBY_EXTRA_LIBS=`$RUBY -rmkmf -e 'print RubyConfig::CONFIG.fetch(%q(LINKFORSHARED))'` + # fi + # AC_MSG_RESULT([$RUBY_EXTRA_LIBS]) + # AC_SUBST(RUBY_EXTRA_LIBS) + + # this flags breaks ruby.h, and is sometimes defined by KDE m4 macros + CFLAGS="`echo "$CFLAGS" | sed -e 's/-std=iso9899:1990//g;'`" + # + # final check to see if everything compiles alright + # + AC_MSG_CHECKING([consistency of all components of ruby development environment]) + AC_LANG_PUSH([C]) + # save current global flags + ac_save_LIBS="$LIBS" + LIBS="$ac_save_LIBS $RUBY_LDFLAGS" + ac_save_CFLAGS="$CFLAGS" + CFLAGS="$ac_save_CFLAGS $RUBY_CFLAGS" + AC_LINK_IFELSE( + [AC_LANG_PROGRAM([#include <ruby.h>],[ruby_init()])], + [rubyexists=yes], + [rubyexists=no]) + + AC_MSG_RESULT([$rubyexists]) + + if test ! "$rubyexists" = "yes"; then + AC_MSG_WARN([ + Could not link test program to Ruby. Maybe the main Ruby library has been + installed in some non-standard library path. If so, pass it to configure, + via the LDFLAGS environment variable. + Example: ./configure LDFLAGS="-L/usr/non-standard-path/ruby/lib" + ============================================================================ + You probably have to install the development version of the Ruby package + for your distribution. The exact name of this package varies among them. + ============================================================================ + ]) + RUBY_VERSION="" + fi + AC_LANG_POP + # turn back to default flags + CFLAGS="$ac_save_CFLAGS" + LIBS="$ac_save_LIBS" + + # + # all done! + # +]) + |