[gobject-introspection] Hide more symbols that shouldn't be exported

[Colin Walters <walters src gnome org>]

commit c9195de4e91d5c113a03f97762e0219a824f41c3
Author: Andreas Henriksson <andreas fatal se>
Date:   Fri Sep 5 13:30:02 2014 -0700

    Hide more symbols that shouldn't be exported
    
    This fixes some fallouts from commit d281b07c4aba18d3
    "build: Export Symbols Using Compiler Directives"
    
    https://bugzilla.gnome.org/show_bug.cgi?id=732669

 Makefile-cmph.am         |    2 +-
 Makefile-girepository.am |    6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/Makefile-cmph.am b/Makefile-cmph.am
index a2edcf6..5e2133a 100644
--- a/Makefile-cmph.am
+++ b/Makefile-cmph.am
@@ -1,6 +1,6 @@
 EXTRA_LTLIBRARIES += libcmph.la
 
-libcmph_la_CPPFLAGS = -Icmph $(GLIB_CFLAGS)
+libcmph_la_CPPFLAGS = -Icmph $(GLIB_CFLAGS) $(GI_HIDDEN_VISIBILITY_CFLAGS)
 libcmph_la_LIBADD = -lm $(GLIB_LIBS)
 
 libcmph_la_SOURCES = \
diff --git a/Makefile-girepository.am b/Makefile-girepository.am
index 8a857d6..44b508d 100644
--- a/Makefile-girepository.am
+++ b/Makefile-girepository.am
@@ -30,7 +30,11 @@ noinst_LTLIBRARIES += libgirepository-internals.la libgirepository-gthash.la
 
 libgirepository_gthash_la_SOURCES =                            \
        girepository/gthash.c
-libgirepository_gthash_la_CFLAGS = $(GIREPO_CFLAGS) -I$(top_srcdir)/girepository
+libgirepository_gthash_la_CFLAGS =     \
+       $(GIREPO_CFLAGS)        \
+       $(GI_HIDDEN_VISIBILITY_CFLAGS)  \
+       -I$(top_srcdir)/girepository
+
 libgirepository_gthash_la_LIBADD = libcmph.la $(GIREPO_LIBS)
 
 libgirepository_internals_la_SOURCES =                         \