The rest of the build system will respect the user's CFLAGS if we
don't wipe them out, so just delete the line that does that. The
removal of the gtk-1.x stuff is so that we can run eautoreconf and
have it work; we don't support gtk1 in Gentoo anyway.

diff --git a/configure.in b/configure.in
index f8f48cc..d8f1261 100755
--- a/configure.in
+++ b/configure.in
@@ -57,9 +57,6 @@ dnl
 dnl Debugging enables, CFLAGS
 dnl
 
-dnl Clear -g -O2 from CFLAGS
-CFLAGS=""
-
 AC_MSG_CHECKING(for debugging info)
 
 AC_ARG_ENABLE(debug,
@@ -110,11 +107,6 @@ if test ${with_gtk} = no ; then
 fi
 
 if test ${have_gtk} = no ; then
-  if test ${with_gtk} = yes -o ${with_gtk} = gtk1 ; then
-    AM_PATH_GTK(1.2.0, have_gtk=gtk1)
-  fi
-fi
-if test ${have_gtk} = no ; then
   if test ${with_gtk} = yes -o ${with_gtk} = gtk2 ; then
     AM_PATH_GTK_2_0(2.0.0, have_gtk=gtk2)
   fi