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[Emacs-diffs] Changes to emacs/configure.in,v


From: Glenn Morris
Subject: [Emacs-diffs] Changes to emacs/configure.in,v
Date: Tue, 12 Jun 2007 08:12:52 +0000

CVSROOT:        /sources/emacs
Module name:    emacs
Changes by:     Glenn Morris <gm>       07/06/12 08:12:52

Index: configure.in
===================================================================
RCS file: /sources/emacs/emacs/configure.in,v
retrieving revision 1.451
retrieving revision 1.452
diff -u -b -r1.451 -r1.452
--- configure.in        11 Jun 2007 17:47:44 -0000      1.451
+++ configure.in        12 Jun 2007 08:12:52 -0000      1.452
@@ -110,7 +110,7 @@
 AC_ARG_WITH(tiff,
 [  --with-tiff             use -ltiff for displaying TIFF images])
 AC_ARG_WITH(gif,
-[  --with-gif              use -lungif for displaying GIF images])
+[  --with-gif              use -lungif (or -lgif) for displaying GIF images])
 AC_ARG_WITH(png,
 [  --with-png              use -lpng for displaying PNG images])
 AC_ARG_WITH(gpm,
@@ -2527,18 +2527,30 @@
   fi
 fi
 
-### Use -lgif if available, unless `--with-gif=no'.
+### Use -lgif or -lungif if available, unless `--with-gif=no'.
 HAVE_GIF=no
-if test "${HAVE_X11}" = "yes"; then
-  if test "${with_gif}" != "no"; then
+if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
     AC_CHECK_HEADER(gif_lib.h,
 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
 # Earlier versions can crash Emacs.
-      AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes))
+    AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, try_libgif=yes))
+
+  if test "$HAVE_GIF" = yes; then
+      ac_gif_lib_name="-lungif"
+  fi
+
+# If gif_lib.h but no libungif, try libgif.
+  if test x"$try_libgif" = xyes; then
+    AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes)
+
+    if test "$HAVE_GIF" = yes; then
+      AC_DEFINE(LIBGIF, -lgif, [Compiler option to link with the gif library 
(if not -lungif).])
+      ac_gif_lib_name="-lgif"
+    fi
   fi
 
   if test "${HAVE_GIF}" = "yes"; then
-    AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have the ungif library 
(-lungif).])
+    AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif library (default 
-lungif; otherwise specify with LIBGIF).])
   fi
 fi
 
@@ -3311,7 +3323,7 @@
 echo "  Does Emacs use -lXpm?                                   ${HAVE_XPM}"
 echo "  Does Emacs use -ljpeg?                                  ${HAVE_JPEG}"
 echo "  Does Emacs use -ltiff?                                  ${HAVE_TIFF}"
-echo "  Does Emacs use -lungif?                                 ${HAVE_GIF}"
+echo "  Does Emacs use a gif library?                           ${HAVE_GIF} 
$ac_gif_lib_name"
 echo "  Does Emacs use -lpng?                                   ${HAVE_PNG}"
 echo "  Does Emacs use -lgpm?                                   ${HAVE_GPM}"
 echo "  Does Emacs use X toolkit scroll bars?                   
${USE_TOOLKIT_SCROLL_BARS}"




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