m4: Update m4 files

- Revert .gitignore because m4 files cannot be added
- Delete as-version.m4 which has been unused since 2010
- Update the latest introspection.m4
- Update the latest vapigen.m4

Fixes: d23bbdd
Fixes: 3b3f56d

BUG=#2527

.gitignore

@@ -28,7 +28,6 @@ install-sh
 libtool
 *.lo
 ltmain.sh
-m4/*.m4
 **/Makefile
 **/Makefile.in
 missing

m4/Makefile.am

@@ -21,7 +21,6 @@
 # USA
 
 EXTRA_DIST = \
-    as-version.m4 \
     ibuslocale.m4 \
     vapigen.m4 \
     $(NULL)

m4/introspection.m4

@@ -8,6 +8,47 @@ dnl
 
 # serial 1
 
+dnl This is a copy of AS_AC_EXPAND
+dnl
+dnl (C) 2003, 2004, 2005 Thomas Vander Stichele <thomas at apestaart dot org>
+dnl Copying and distribution of this file, with or without modification,
+dnl are permitted in any medium without royalty provided the copyright
+dnl notice and this notice are preserved.
+m4_define([_GOBJECT_INTROSPECTION_AS_AC_EXPAND],
+[
+  EXP_VAR=[$1]
+  FROM_VAR=[$2]
+
+  dnl first expand prefix and exec_prefix if necessary
+  prefix_save=$prefix
+  exec_prefix_save=$exec_prefix
+
+  dnl if no prefix given, then use /usr/local, the default prefix
+  if test "x$prefix" = "xNONE"; then
+    prefix="$ac_default_prefix"
+  fi
+  dnl if no exec_prefix given, then use prefix
+  if test "x$exec_prefix" = "xNONE"; then
+    exec_prefix=$prefix
+  fi
+
+  full_var="$FROM_VAR"
+  dnl loop until it doesn't change anymore
+  while true; do
+    new_full_var="`eval echo $full_var`"
+    if test "x$new_full_var" = "x$full_var"; then break; fi
+    full_var=$new_full_var
+  done
+
+  dnl clean up
+  full_var=$new_full_var
+  AC_SUBST([$1], "$full_var")
+
+  dnl restore prefix and exec_prefix
+  prefix=$prefix_save
+  exec_prefix=$exec_prefix_save
+])
+
 m4_define([_GOBJECT_INTROSPECTION_CHECK_INTERNAL],
 [
     AC_BEFORE([AC_PROG_LIBTOOL],[$0])dnl setup libtool first
@@ -41,27 +82,34 @@ m4_define([_GOBJECT_INTROSPECTION_CHECK_INTERNAL],
     ],dnl
     [auto],[dnl
         PKG_CHECK_EXISTS([gobject-introspection-1.0 >= $1], found_introspection=yes, found_introspection=no)
+	dnl Canonicalize enable_introspection
+	enable_introspection=$found_introspection
     ],dnl
     [dnl	
         AC_MSG_ERROR([invalid argument passed to --enable-introspection, should be one of @<:@no/auto/yes@:>@])
     ])dnl
 
     AC_MSG_RESULT([$found_introspection])
 
+    dnl expand datadir/libdir so we can pass them to pkg-config
+    dnl and get paths relative to our target directories
+    _GOBJECT_INTROSPECTION_AS_AC_EXPAND(_GI_EXP_DATADIR, "$datadir")
+    _GOBJECT_INTROSPECTION_AS_AC_EXPAND(_GI_EXP_LIBDIR, "$libdir")
+
     INTROSPECTION_SCANNER=
     INTROSPECTION_COMPILER=
     INTROSPECTION_GENERATE=
     INTROSPECTION_GIRDIR=
     INTROSPECTION_TYPELIBDIR=
     if test "x$found_introspection" = "xyes"; then
-       INTROSPECTION_SCANNER=`$PKG_CONFIG --variable=g_ir_scanner gobject-introspection-1.0`
-       INTROSPECTION_COMPILER=`$PKG_CONFIG --variable=g_ir_compiler gobject-introspection-1.0`
-       INTROSPECTION_GENERATE=`$PKG_CONFIG --variable=g_ir_generate gobject-introspection-1.0`
-       INTROSPECTION_GIRDIR=`$PKG_CONFIG --variable=girdir gobject-introspection-1.0`
-       INTROSPECTION_TYPELIBDIR="$($PKG_CONFIG --variable=typelibdir gobject-introspection-1.0)"
+       INTROSPECTION_SCANNER=$PKG_CONFIG_SYSROOT_DIR`$PKG_CONFIG --variable=g_ir_scanner gobject-introspection-1.0`
+       INTROSPECTION_COMPILER=$PKG_CONFIG_SYSROOT_DIR`$PKG_CONFIG --variable=g_ir_compiler gobject-introspection-1.0`
+       INTROSPECTION_GENERATE=$PKG_CONFIG_SYSROOT_DIR`$PKG_CONFIG --variable=g_ir_generate gobject-introspection-1.0`
+       INTROSPECTION_GIRDIR=`$PKG_CONFIG --define-variable=datadir="${_GI_EXP_DATADIR}" --variable=girdir gobject-introspection-1.0`
+       INTROSPECTION_TYPELIBDIR="$($PKG_CONFIG --define-variable=libdir="${_GI_EXP_LIBDIR}" --variable=typelibdir gobject-introspection-1.0)"
        INTROSPECTION_CFLAGS=`$PKG_CONFIG --cflags gobject-introspection-1.0`
        INTROSPECTION_LIBS=`$PKG_CONFIG --libs gobject-introspection-1.0`
-       INTROSPECTION_MAKEFILE=`$PKG_CONFIG --variable=datadir gobject-introspection-1.0`/gobject-introspection-1.0/Makefile.introspection
+       INTROSPECTION_MAKEFILE=$PKG_CONFIG_SYSROOT_DIR`$PKG_CONFIG --variable=datadir gobject-introspection-1.0`/gobject-introspection-1.0/Makefile.introspection
     fi
     AC_SUBST(INTROSPECTION_SCANNER)
     AC_SUBST(INTROSPECTION_COMPILER)

m4/vapigen.m4

@@ -16,15 +16,20 @@ dnl You should have received a copy of the GNU Lesser General Public
 dnl License along with this library; if not, write to the Free Software
 dnl Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
 
-# VAPIGEN_CHECK([VERSION], [API_VERSION], [FOUND-INTROSPECTION], [DEFAULT])
+# VAPIGEN_CHECK([VERSION], [API_VERSION], [FOUND_INTROSPECTION], [DEFAULT])
 # --------------------------------------
 # Check vapigen existence and version
 #
 # See http://live.gnome.org/Vala/UpstreamGuide for detailed documentation
 AC_DEFUN([VAPIGEN_CHECK],
 [
-  AC_BEFORE([GOBJECT_INTROSPECTION_CHECK],[$0])
-  AC_BEFORE([GOBJECT_INTROSPECTION_REQUIRE],[$0])
+  AS_IF([test "x$3" != "xyes"], [
+      m4_provide_if([GOBJECT_INTROSPECTION_CHECK], [], [
+          m4_provide_if([GOBJECT_INTROSPECTION_REQUIRE], [], [
+              AC_MSG_ERROR([[You must call GOBJECT_INTROSPECTION_CHECK or GOBJECT_INTROSPECTION_REQUIRE before using VAPIGEN_CHECK unless using the FOUND_INTROSPECTION argument is "yes"]])
+            ])
+        ])
+    ])
 
   AC_ARG_ENABLE([vala],
     [AS_HELP_STRING([--enable-vala[=@<:@no/auto/yes@:>@]],[build Vala bindings @<:@default=]ifelse($4,,auto,$4)[@:>@])],,[
@@ -77,12 +82,12 @@ AC_DEFUN([VAPIGEN_CHECK],
 
   AS_CASE([$enable_vala],
     [yes], [
-      VAPIGEN=`$PKG_CONFIG --variable=vapigen $vapigen_pkg_name`
-      VAPIGEN_MAKEFILE=`$PKG_CONFIG --variable=datadir $vapigen_pkg_name`/vala/Makefile.vapigen
+      VAPIGEN=$PKG_CONFIG_SYSROOT_DIR`$PKG_CONFIG --variable=vapigen $vapigen_pkg_name`
+      VAPIGEN_MAKEFILE=$PKG_CONFIG_SYSROOT_DIR`$PKG_CONFIG --variable=datadir $vapigen_pkg_name`/vala/Makefile.vapigen
       AS_IF([test "x$2" = "x"], [
-          VAPIGEN_VAPIDIR=`$PKG_CONFIG --variable=vapidir $vapigen_pkg_name`
+          VAPIGEN_VAPIDIR=$PKG_CONFIG_SYSROOT_DIR`$PKG_CONFIG --variable=vapidir $vapigen_pkg_name`
         ], [
-          VAPIGEN_VAPIDIR=`$PKG_CONFIG --variable=vapidir_versioned $vapigen_pkg_name`
+          VAPIGEN_VAPIDIR=$PKG_CONFIG_SYSROOT_DIR`$PKG_CONFIG --variable=vapidir_versioned $vapigen_pkg_name`
         ])
     ])