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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
AC_DEFUN([EL_CONFIG_RUBY],
[
AC_MSG_CHECKING([for Ruby])
CONFIG_RUBY_WITHVAL="no"
CONFIG_RUBY="no"
EL_SAVE_FLAGS
AC_ARG_WITH(ruby,
[ --with-ruby enable Ruby support],
[CONFIG_RUBY_WITHVAL="$withval"])
if test "$CONFIG_RUBY_WITHVAL" != no; then
CONFIG_RUBY="yes"
fi
AC_MSG_RESULT($CONFIG_RUBY)
if test "$CONFIG_RUBY" = "yes"; then
if test -d "$CONFIG_RUBY_WITHVAL"; then
RUBY_PATH="$CONFIG_RUBY_WITHVAL:$PATH"
else
RUBY_PATH="$PATH"
fi
AC_PATH_PROG(CONFIG_RUBY, ruby, no, $RUBY_PATH)
if test "$CONFIG_RUBY" != "no"; then
AC_MSG_CHECKING(Ruby version)
if $CONFIG_RUBY -e '(VERSION rescue RUBY_VERSION) >= "1.6.0" or exit 1' >/dev/null 2>/dev/null; then
ruby_version=`$CONFIG_RUBY -e 'puts "#{VERSION rescue RUBY_VERSION}"'`
AC_MSG_RESULT($ruby_version)
AC_MSG_CHECKING(for Ruby header files)
rubyhdrdir=`$CONFIG_RUBY -r mkmf -e 'print Config::CONFIG[["archdir"]] || $hdrdir' 2>/dev/null`
if test "X$rubyhdrdir" != "X"; then
AC_MSG_RESULT($rubyhdrdir)
RUBY_CFLAGS="-I$rubyhdrdir"
rubylibs=`$CONFIG_RUBY -r rbconfig -e 'print Config::CONFIG[["LIBS"]]'`
if test "X$rubylibs" != "X"; then
RUBY_LIBS="$rubylibs"
fi
librubyarg=`$CONFIG_RUBY -r rbconfig -e 'print Config.expand(Config::CONFIG[["LIBRUBYARG"]])'`
if test -f "$rubyhdrdir/$librubyarg"; then
librubyarg="$rubyhdrdir/$librubyarg"
else
rubylibdir=`$CONFIG_RUBY -r rbconfig -e 'print Config.expand(Config::CONFIG[["libdir"]])'`
if test -f "$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=`$CONFIG_RUBY -r rbconfig -e "print '$librubyarg'.gsub(/-L\./, %'-L#{Config.expand(Config::CONFIG[\"libdir\"])}')"`
fi
fi
if test "X$librubyarg" != "X"; then
RUBY_LIBS="$librubyarg $RUBY_LIBS"
fi
rubyldflags=`$CONFIG_RUBY -r rbconfig -e 'print Config::CONFIG[["LDFLAGS"]]'`
if test "X$rubyldflags" != "X"; then
LDFLAGS="$rubyldflags $LDFLAGS"
fi
LIBS="$RUBY_LIBS $LIBS"
CFLAGS="$RUBY_CFLAGS $CFLAGS"
CPPFLAGS="$CPPFLAGS $RUBY_CFLAGS"
AC_TRY_LINK([#include <ruby.h>],
[ruby_init();],
CONFIG_RUBY=yes, CONFIG_RUBY=no)
else
AC_MSG_RESULT([Ruby header files not found])
fi
else
AC_MSG_RESULT(too old; need Ruby version 1.6.0 or later)
fi
fi
fi
EL_RESTORE_FLAGS
if test "$CONFIG_RUBY" != "yes"; then
if test -n "$CONFIG_RUBY_WITHVAL" &&
test "$CONFIG_RUBY_WITHVAL" != no; then
AC_MSG_ERROR([Ruby not found])
fi
else
EL_CONFIG(CONFIG_RUBY, [Ruby])
LIBS="$LIBS $RUBY_LIBS"
AC_SUBST(RUBY_CFLAGS)
AC_SUBST(RUBY_LIBS)
fi
])