1 files changed, 37 insertions, 0 deletions
diff --git a/m4/arc-gnome.m4 b/m4/arc-gnome.m4
new file mode 100644
index 0000000..82bd510
--- /dev/null
+++ b/m4/arc-gnome.m4
@@ -0,0 +1,37 @@
+# ARC_GNOME()
+# ---------------
+AC_DEFUN([ARC_GNOME], [
+    GNOMEDIR="$srcdir/common/gtk-3.0"
+
+    PKG_CHECK_EXISTS(
+        [gtk+-3.0],
+        [GNOME_VERSION=`$PKG_CONFIG --modversion gtk+-3.0`],
+        [GNOME_VERSION=`ls -1 "$GNOMEDIR" | tail -1`]
+    )
+    AC_ARG_WITH(
+        [gnome],
+        [AS_HELP_STRING(
+            [--with-gnome],
+            [GNOME minor version]
+        )],
+        [GNOME_VERSION="$withval"]
+    )
+
+    # Trim version extras
+    GNOME_VERSION=`echo $GNOME_VERSION | cut -d. -f-2`
+
+    # Extra major and minor version components
+    GNOME_VERSMJR=`echo $GNOME_VERSION | cut -d. -f1`
+    GNOME_VERSMNR=`echo $GNOME_VERSION | cut -d. -f2`
+
+    # Evenize the minor version for stable versions
+    AS_IF(
+        [test `expr $GNOME_VERSMNR % 2` != "0"],
+        [GNOME_VERSION="$GNOME_VERSMJR.`expr $GNOME_VERSMNR + 1`"]
+    )
+    AS_IF(
+        [! test -e "$GNOMEDIR/$GNOME_VERSION"],
+        [AC_MSG_ERROR([invalid GNOME version: $GNOME_VERSION])]
+    )
+    AC_SUBST([GNOME_VERSION])
+])