config/m4/ruby.m4

   1 dnl Thank you very much Vim for this lovely ruby configuration
   2 dnl The hitchhiked code is from Vim configure.in version 1.98
   3
   4
   5 AC_DEFUN([EL_CONFIG_SCRIPTING_RUBY],
   6 [
   7 AC_MSG_CHECKING([for Ruby])
   8
   9 CONFIG_SCRIPTING_RUBY_WITHVAL="no"
  10 CONFIG_SCRIPTING_RUBY="no"
  11
  12 EL_SAVE_FLAGS
  13
  14 AC_ARG_WITH(ruby,
  15         [  --with-ruby             enable Ruby support],
  16         [CONFIG_SCRIPTING_RUBY_WITHVAL="$withval"])
  17
  18 if test "$CONFIG_SCRIPTING_RUBY_WITHVAL" != no; then
  19         CONFIG_SCRIPTING_RUBY="yes"
  20 fi
  21
  22 AC_MSG_RESULT($CONFIG_SCRIPTING_RUBY)
  23
  24 if test "$CONFIG_SCRIPTING_RUBY" = "yes"; then
  25         if test -d "$CONFIG_SCRIPTING_RUBY_WITHVAL"; then
  26                 RUBY_PATH="$CONFIG_SCRIPTING_RUBY_WITHVAL:$PATH"
  27         else
  28                 RUBY_PATH="$PATH"
  29         fi
  30
  31         AC_PATH_PROG(CONFIG_SCRIPTING_RUBY, ruby, no, $RUBY_PATH)
  32         if test "$CONFIG_SCRIPTING_RUBY" != "no"; then
  33
  34                 AC_MSG_CHECKING(Ruby version)
  35                 if $CONFIG_SCRIPTING_RUBY -e 'exit((VERSION or RUBY_VERSION) >= "1.6.0")' >/dev/null 2>/dev/null; then
  36                         ruby_version=`$CONFIG_SCRIPTING_RUBY -e 'puts "#{VERSION rescue RUBY_VERSION}"'`
  37                         AC_MSG_RESULT($ruby_version)
  38
  39                         AC_MSG_CHECKING(for Ruby header files)
  40                         rubyhdrdir=`$CONFIG_SCRIPTING_RUBY -r mkmf -e 'print Config::CONFIG[["archdir"]] || $hdrdir' 2>/dev/null`
  41
  42                         if test "X$rubyhdrdir" != "X"; then
  43                                 AC_MSG_RESULT($rubyhdrdir)
  44                                 RUBY_CFLAGS="-I$rubyhdrdir"
  45                                 rubylibs=`$CONFIG_SCRIPTING_RUBY -r rbconfig -e 'print Config::CONFIG[["LIBS"]]'`
  46
  47                                 if test "X$rubylibs" != "X"; then
  48                                         RUBY_LIBS="$rubylibs"
  49                                 fi
  50
  51                                 librubyarg=`$CONFIG_SCRIPTING_RUBY -r rbconfig -e 'print Config.expand(Config::CONFIG[["LIBRUBYARG"]])'`
  52
  53                                 if test -f "$rubyhdrdir/$librubyarg"; then
  54                                         librubyarg="$rubyhdrdir/$librubyarg"
  55
  56                                 else
  57                                         rubylibdir=`$CONFIG_SCRIPTING_RUBY -r rbconfig -e 'print Config.expand(Config::CONFIG[["libdir"]])'`
  58                                         if test -f "$rubylibdir/$librubyarg"; then
  59                                                 librubyarg="$rubylibdir/$librubyarg"
  60                                         elif test "$librubyarg" = "libruby.a"; then
  61                                                 dnl required on Mac OS 10.3 where libruby.a doesn't exist
  62                                                 librubyarg="-lruby"
  63                                         else
  64                                                 librubyarg=`$CONFIG_SCRIPTING_RUBY -r rbconfig -e "print '$librubyarg'.gsub(/-L\./, %'-L#{Config.expand(Config::CONFIG[\"libdir\"])}')"`
  65                                         fi
  66                                 fi
  67
  68                                 if test "X$librubyarg" != "X"; then
  69                                         RUBY_LIBS="$librubyarg $RUBY_LIBS"
  70                                 fi
  71
  72                                 rubyldflags=`$CONFIG_SCRIPTING_RUBY -r rbconfig -e 'print Config::CONFIG[["LDFLAGS"]]'`
  73                                 if test "X$rubyldflags" != "X"; then
  74                                         LDFLAGS="$rubyldflags $LDFLAGS"
  75                                 fi
  76
  77                                 LIBS="$RUBY_LIBS $LIBS"
  78                                 CFLAGS="$RUBY_CFLAGS $CFLAGS"
  79                                 CPPFLAGS="$CPPFLAGS $RUBY_CFLAGS"
  80
  81                                 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <ruby.h>]], [[ruby_init();]])],[CONFIG_SCRIPTING_RUBY=yes],[CONFIG_SCRIPTING_RUBY=no])
  82                         else
  83                                 AC_MSG_RESULT([Ruby header files not found])
  84                         fi
  85                 else
  86                         AC_MSG_RESULT(too old; need Ruby version 1.6.0 or later)
  87                 fi
  88         fi
  89 fi
  90
  91 EL_RESTORE_FLAGS
  92
  93 if test "$CONFIG_SCRIPTING_RUBY" != "yes"; then
  94         if test -n "$CONFIG_SCRIPTING_RUBY_WITHVAL" &&
  95            test "$CONFIG_SCRIPTING_RUBY_WITHVAL" != no; then
  96                 AC_MSG_ERROR([Ruby not found])
  97         fi
  98 else
  99         EL_CONFIG(CONFIG_SCRIPTING_RUBY, [Ruby])
 100
 101         LIBS="$LIBS $RUBY_LIBS"
 102         AC_SUBST(RUBY_CFLAGS)
 103         AC_SUBST(RUBY_LIBS)
 104 fi
 105 ])