require libsigc-2.0.11 on gcc-3 and 2.0.12 on gcc-4+ systems

diff --git a/configure.ac b/configure.ac
index 48d7afe3c2d18a6168fcb0956334cccf8716798c..b8ff9b4761f200cbc76c367403c789d1e4787eb6 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -495,7 +495,11 @@ dnl ******************************
 dnl *** NOTE: when we move to gtk 2.6 or later, we can remove the 
 dnl ********* the override for g_ascii_strtod below...
 dnl sigc++-2.0 >= 2.0.12: using "visit_each" not available in 2.0.10
-PKG_CHECK_MODULES(INKSCAPE, gdkmm-2.4  glibmm-2.4  gtkmm-2.4  gtk+-2.0 >= 2.4.0  libxml-2.0 >= 2.6.11  libxslt >= 1.0.15  sigc++-2.0 >= 2.0.12  $ink_spell_pkg  gthread-2.0 >= 2.0)
+PKG_CHECK_MODULES(INKSCAPE, gdkmm-2.4  glibmm-2.4  gtkmm-2.4  gtk+-2.0 >= 2.4.0  libxml-2.0 >= 2.6.11  libxslt >= 1.0.15  sigc++-2.0 >= 2.0.11 $ink_spell_pkg  gthread-2.0 >= 2.0)
+
+if test $cc_vers_major -gt 3; then
+    PKG_CHECK_MODULES(INKSCAPE, sigc++-2.0 >= 2.0.12)
+fi
 
 dnl Shouldn't we test for libpng and libz?
 INKSCAPE_LIBS="$INKSCAPE_LIBS -lpng -lz"