pidgin: 60c9671d: Don't use old versions of libgadu if the...

[qulogic at pidgin.im]

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Revision: 60c9671daa2b521f9de4c0980f8798876959570e
Ancestor: 87b17dbaabb71cb46ea5e7a233125baa6ab180a8
Author: qulogic at pidgin.im
Date: 2010-03-10T05:10:43
Branch: im.pidgin.pidgin
URL: http://d.pidgin.im/viewmtn/revision/info/60c9671daa2b521f9de4c0980f8798876959570e

Modified files:
        configure.ac

ChangeLog: 

Don't use old versions of libgadu if the user specified a location for the
headers/libraries. GG_DEFAULT_PROTOCOL_VERSION seemed the best bet since
GG_LIBGADU_VERSION is a string, but maybe someone can find something that's
better.

Refs #10542.

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--- configure.ac	4911f2319f80ab205dbecde535e404c50c4f0f9f
+++ configure.ac	d498f747efc43b80aacde20129171c1fb08bda58
@@ -1049,9 +1049,28 @@ if test "x$gadu_libs" = "xyes"; then
 #error "libgadu is not compatible with the GPL when compiled with OpenSSL support."
 #endif
 	]])], [
-		AC_MSG_RESULT(yes)
-		AC_DEFINE([HAVE_LIBGADU], [1],
-			[Define to 1 if you have libgadu.])
+		AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <libgadu.h>]], [[
+#if GG_DEFAULT_PROTOCOL_VERSION < 0x2e
+#error "Your libgadu version is too old. libpurple requires 1.9.0-rc2 or higher."
+#endif
+		]])], [
+			AC_MSG_RESULT(yes)
+			AC_DEFINE([HAVE_LIBGADU], [1],
+				[Define to 1 if you have libgadu.])
+		], [
+			AC_MSG_RESULT(no)
+			echo
+			echo
+			echo "Your supplied copy of libgadu is too old."
+			echo "Install version 1.9.0-rc2 or newer."
+			echo "Then rerun this ./configure"
+			echo
+			echo "Falling back to using our own copy of libgadu"
+			echo
+			GADU_LIBS=""
+			GADU_CFLAGS=""
+			gadu_libs=no
+		])
 	], [
 		AC_MSG_RESULT(no)
 		echo