[gtk+/gtk-2-24] Explicitly link gdk and gtk against libm

[Matthias Clasen <matthiasc src gnome org>]

commit c07efad261dd9cc3524e1c48298258e2e5b9314e
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Aug 30 14:11:50 2011 -0400

    Explicitly link gdk and gtk against libm
    
    We used to get an implicit -lm from gdk-pixbuf, but that has
    recently been changed to not inject extraneous libraries into
    link lines, so we have to do it ourselves now. This is more
    correct, anyway.

 configure.in |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.in b/configure.in
index 9c481d2..831d75a 100644
--- a/configure.in
+++ b/configure.in
@@ -1315,7 +1315,7 @@ else
   GDK_PACKAGES="$PANGO_PACKAGES gio-2.0 gdk-pixbuf-2.0 cairo-$cairo_backend"
 fi
 
-GDK_DEP_LIBS="$GDK_EXTRA_LIBS `$PKG_CONFIG --libs $GDK_PACKAGES`"
+GDK_DEP_LIBS="$GDK_EXTRA_LIBS `$PKG_CONFIG --libs $GDK_PACKAGES` $MATH_LIB"
 GDK_DEP_CFLAGS="`$PKG_CONFIG --cflags  gthread-2.0 $GDK_PACKAGES` $GDK_EXTRA_CFLAGS"
 #
 # If we aren't writing explicit dependencies, then don't put the extra libraries we need
@@ -1368,7 +1368,7 @@ if test "x$gdktarget" = "xx11"; then
 fi
 GTK_EXTRA_LIBS=
 GTK_EXTRA_CFLAGS= 
-GTK_DEP_LIBS="$GDK_EXTRA_LIBS $GTK_DEP_LIBS_FOR_X `$PKG_CONFIG --libs $PANGO_PACKAGES $GTK_PACKAGES_FOR_X $GTK_PACKAGES` $GTK_EXTRA_LIBS"
+GTK_DEP_LIBS="$GDK_EXTRA_LIBS $GTK_DEP_LIBS_FOR_X `$PKG_CONFIG --libs $PANGO_PACKAGES $GTK_PACKAGES_FOR_X $GTK_PACKAGES` $GTK_EXTRA_LIBS $MATH_LIB"
 GTK_DEP_CFLAGS="`$PKG_CONFIG --cflags  gthread-2.0 $GDK_PACKAGES $GTK_PACKAGES` $GDK_EXTRA_CFLAGS $GTK_EXTRA_CFLAGS"
 
 if test x"$os_win32" = xyes; then