Force libpcre fallback in glib meson build

Author: ankith26

buildconfig/manylinux-build/docker_base/glib/build-glib.sh

@@ -15,7 +15,7 @@ tar xf ${GLIB}.tar
 cd $GLIB
 
 # a minimal glib install will do for us
-meson _build $PG_BASE_MESON_FLAGS -Dtests=false \
+meson _build $PG_BASE_MESON_FLAGS --force-fallback-for=libpcre2-8 -Dtests=false \
     -Dselinux=disabled -Dlibmount=disabled -Ddtrace=false -Dsystemtap=false -Dnls=disabled
 
 ninja -C _build