[anjuta] build: bgo#684758 - anjuta-3.5.91 fails to configure due to ac_ct_CXX check

[Sebastien Granjoux <sgranjoux src gnome org>]

commit ed542779a5d35c3cdef3567a9c1aaaf8cfa23b19
Author: SÃbastien Granjoux <seb sfo free fr>
Date:   Sat Oct 13 22:35:09 2012 +0200

    build: bgo#684758 - anjuta-3.5.91 fails to configure due to ac_ct_CXX check

 configure.ac |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 631b45b..70b2f5e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -80,10 +80,8 @@ fi
 AC_LANG([C])
 AC_LANG([C++])
 AC_PROG_CXX
-if test "x$ac_ct_CXX" = "x"
-then
-  AC_MSG_ERROR([C++ Compiler required to compile Anjuta])
-fi
+AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],,
+   AC_MSG_ERROR([C++ Compiler required to compile Anjuta]))
 AM_PROG_CC_C_O
 
 GNOME_COMPILE_WARNINGS([maximum])