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elinks/config/m4/ruby.m4

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dnl Thank you very much Vim for this lovely ruby configuration
dnl The hitchhiked code is from Vim configure.in version 1.98
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AC_DEFUN([EL_CONFIG_SCRIPTING_RUBY],
[
AC_MSG_CHECKING([for Ruby])
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CONFIG_SCRIPTING_RUBY_WITHVAL="no"
CONFIG_SCRIPTING_RUBY="no"
EL_SAVE_FLAGS
AC_ARG_WITH(ruby,
[ --with-ruby enable Ruby support],
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[CONFIG_SCRIPTING_RUBY_WITHVAL="$withval"])
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if test "$CONFIG_SCRIPTING_RUBY_WITHVAL" != no; then
CONFIG_SCRIPTING_RUBY="yes"
fi
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AC_MSG_RESULT($CONFIG_SCRIPTING_RUBY)
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if test "$CONFIG_SCRIPTING_RUBY" = "yes"; then
if test -d "$CONFIG_SCRIPTING_RUBY_WITHVAL"; then
RUBY_PATH="$CONFIG_SCRIPTING_RUBY_WITHVAL:$PATH"
else
RUBY_PATH="$PATH"
fi
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AC_PATH_PROG(CONFIG_SCRIPTING_RUBY, ruby, no, $RUBY_PATH)
if test "$CONFIG_SCRIPTING_RUBY" != "no"; then
AC_MSG_CHECKING(Ruby version)
if $CONFIG_SCRIPTING_RUBY -e 'exit((VERSION rescue RUBY_VERSION) >= "1.6.0")' >/dev/null 2>/dev/null; then
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ruby_version=`$CONFIG_SCRIPTING_RUBY -e 'puts "#{VERSION rescue RUBY_VERSION}"'`
AC_MSG_RESULT($ruby_version)
AC_MSG_CHECKING(for Ruby header files)
rubyhdrdir=`$CONFIG_SCRIPTING_RUBY -r mkmf -e 'print RbConfig::CONFIG[["rubyhdrdir"]] || RbConfig::CONFIG[["archdir"]] || $hdrdir' 2>/dev/null`
if test "X$rubyhdrdir" != "X"; then
AC_MSG_RESULT($rubyhdrdir)
RUBY_CFLAGS="-I$rubyhdrdir"
rubyarch=`$CONFIG_SCRIPTING_RUBY -r rbconfig -e 'print RbConfig::CONFIG[["arch"]]'`
if test -d "$rubyhdrdir/$rubyarch"; then
RUBY_CFLAGS="$RUBY_CFLAGS -I$rubyhdrdir/$rubyarch"
fi
rubylibs=`$CONFIG_SCRIPTING_RUBY -r rbconfig -e 'print RbConfig::CONFIG[["LIBS"]]'`
if test "X$rubylibs" != "X"; then
RUBY_LIBS="$rubylibs"
fi
librubyarg=`$CONFIG_SCRIPTING_RUBY -r rbconfig -e 'print RbConfig.expand(RbConfig::CONFIG[["LIBRUBYARG"]])'`
if test -f "$rubyhdrdir/$librubyarg"; then
librubyarg="$rubyhdrdir/$librubyarg"
else
rubylibdir=`$CONFIG_SCRIPTING_RUBY -r rbconfig -e 'print RbConfig.expand(RbConfig::CONFIG[["libdir"]])'`
if test -f "$rubylibdir/$librubyarg"; then
librubyarg="$rubylibdir/$librubyarg"
elif test "$librubyarg" = "libruby.a"; then
dnl required on Mac OS 10.3 where libruby.a doesn't exist
librubyarg="-lruby"
else
librubyarg=`$CONFIG_SCRIPTING_RUBY -r rbconfig -e "print '$librubyarg'.gsub(/-L\./, %'-L#{RbConfig.expand(RbConfig::CONFIG[\"libdir\"])}')"`
fi
fi
if test "X$librubyarg" != "X"; then
RUBY_LIBS="$librubyarg $RUBY_LIBS"
fi
rubyldflags=`$CONFIG_SCRIPTING_RUBY -r rbconfig -e 'print RbConfig::CONFIG[["LDFLAGS"]]'`
if test "X$rubyldflags" != "X"; then
LDFLAGS="$rubyldflags $LDFLAGS"
fi
LIBS="$RUBY_LIBS $LIBS"
CFLAGS="$RUBY_CFLAGS $CFLAGS"
CPPFLAGS="$CPPFLAGS $RUBY_CFLAGS"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <ruby.h>]], [[ruby_init();]])],[CONFIG_SCRIPTING_RUBY=yes],[CONFIG_SCRIPTING_RUBY=no])
else
AC_MSG_RESULT([Ruby header files not found])
fi
else
AC_MSG_RESULT(too old; need Ruby version 1.6.0 or later)
fi
fi
if test "$CONFIG_SCRIPTING_RUBY" = "yes"; then
AC_MSG_CHECKING([for rb_errinfo])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <ruby.h>]], [[rb_errinfo();]])],have_rb_errinfo="yes",have_rb_errinfo="no")
AC_MSG_RESULT($have_rb_errinfo)
if test "$have_rb_errinfo" = "yes"; then
AC_DEFINE([HAVE_RB_ERRINFO], [1],
[Define to 1 if you have the `rb_errinfo' function.])
fi
fi
fi
EL_RESTORE_FLAGS
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if test "$CONFIG_SCRIPTING_RUBY" != "yes"; then
if test -n "$CONFIG_SCRIPTING_RUBY_WITHVAL" &&
test "$CONFIG_SCRIPTING_RUBY_WITHVAL" != no; then
AC_MSG_ERROR([Ruby not found])
fi
else
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EL_CONFIG(CONFIG_SCRIPTING_RUBY, [Ruby])
LIBS="$LIBS $RUBY_LIBS"
AC_SUBST(RUBY_CFLAGS)
AC_SUBST(RUBY_LIBS)
fi
])