[f-spot] Add --with-gnome-screensaver-privlibexecdir=DIR

[Stephane Delcroix <sdelcroix src gnome org>]

commit c1aec92df1b8115ae975fd35ba9d83bd9de2eceb
Author: Loïc Minier <lool dooz org>
Date:   Wed Sep 2 11:15:45 2009 +0200

    Add --with-gnome-screensaver-privlibexecdir=DIR
    
    Add support for --with-gnome-screensaver-privlibexecdir=DIR and merge
    the GNOME_SCREENSAVER_SAVERDIR= computing logic into the new
    AC_ARG_WITH.  This allows overriding the default
    GNOME_SCREENSAVER_SAVERDIR when no gnome-screensaver bits are installed
    and which is using libexec instead of lib on e.g. Debian/Ubuntu.
    
    Signed-off-by: Stephane Delcroix <stephane delcroix org>

 configure.ac |   17 ++++++++++-------
 1 files changed, 10 insertions(+), 7 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index f88f1ee..afe0191 100644
--- a/configure.ac
+++ b/configure.ac
@@ -235,13 +235,16 @@ AC_ARG_WITH(gnome-screensaver,
         gnome_screensaver_prefix=$prefix
     fi)
 
-if test "$have_gs_pkgconfig" = "yes" && test "x$gs_pc_prefix" = "x$gnome_screensaver_prefix"; then
-	GNOME_SCREENSAVER_SAVERDIR=`$PKG_CONFIG --variable=privlibexecdir gnome-screensaver`
-elif test -d $gnome_screensaver_prefix/lib/gnome-screensaver; then
-	GNOME_SCREENSAVER_SAVERDIR=$gnome_screensaver_prefix/lib/gnome-screensaver/gnome-screensaver
-else 
-	GNOME_SCREENSAVER_SAVERDIR=$gnome_screensaver_prefix/libexec/gnome-screensaver
-fi
+AC_ARG_WITH(gnome-screensaver-privlibexecdir,
+    [ --with-gnome-screensaver-privlibexecdir=DIR  set gnome-screensaver privlibexecdir],
+    GNOME_SCREENSAVER_SAVERDIR=$with_gnome_screensaver_privlibexecdir,
+    if test "$have_gs_pkgconfig" = "yes"; then
+        GNOME_SCREENSAVER_SAVERDIR=`$PKG_CONFIG --variable=privlibexecdir gnome-screensaver`
+    elif test -d $gnome_screensaver_prefix/lib/gnome-screensaver; then
+        GNOME_SCREENSAVER_SAVERDIR=$gnome_screensaver_prefix/lib/gnome-screensaver
+    else
+        GNOME_SCREENSAVER_SAVERDIR=$gnome_screensaver_prefix/libexec/gnome-screensaver
+    fi)
 
 if test "$have_gs_pkgconfig" = "yes" && test "x$gs_pc_prefix" = "x$gnome_screensaver_prefix"; then
 	GNOME_SCREENSAVER_THEMESDIR=`$PKG_CONFIG --variable=themesdir gnome-screensaver`