- Fix build with gcc 13 by using -Wno-error=enum-int-mismatch.

OBS-URL: https://build.opensuse.org/package/show/devel:gcc/gdb?expand=0&rev=326

gdb.spec

@@ -838,7 +838,7 @@ export CXX
 export CFLAGS="$RPM_OPT_FLAGS"
 
 # Add your -Wno-x/-Wno-error=y options here:
-for opt in -Wno-error=odr; do
+for opt in -Wno-error=odr -Wno-error=enum-int-mismatch; do
   # checking for acceptance of -Wno-foo is a bit wieldy: GCC doesn't
   # warn about unknown -Wno- flags, _except_ if there are other
   # diagnostics as well, so let's force an uninitialized use warning