glapi: Fix scons build

Put the -c in the correct place (and match Makefile.am).

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76960
Tested-by: Vinson Lee <vlee@freedesktop.org>
Signed-off-by: José Fonseca <jfonseca@vmware.com>
1 file changed