[gobject-introspection] Move libffi and gmodule to Requires.private in .pc files

[Kalev Lember <klember src gnome org>]

commit a847eb8017259f0ba2e5a1be3afdd2016d2a2542
Author: Kalev Lember <kalevlember gmail com>
Date:   Fri Apr 13 18:30:30 2012 +0300

    Move libffi and gmodule to Requires.private in .pc files
    
    The intention of the change is to clean up unnecessary linking with
    libffi and gmodule in g-i consumers as they typically don't use any
    libffi/gmodule symbols.
    
    Listing libffi and gmodule in pkg-config Requires meant that every
    consumer that wanted to link with -lgirepository also got -lffi and
    -lgmodule-2.0, which caused ld to emit unnecessary DT_NEEDED entries.
    
    Moving the deps to Requires.private removes the internal dependencies
    from 'pkg-config --libs', but keeps them in --libs --static output. The
    change won't affect --cflags and the include directories necessary for
    <ffi.h> will still be listed.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=674065

 gobject-introspection-1.0.pc.in           |    6 ++++--
 gobject-introspection-no-export-1.0.pc.in |    6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)
---
diff --git a/gobject-introspection-1.0.pc.in b/gobject-introspection-1.0.pc.in
index f082786..9613fec 100644
--- a/gobject-introspection-1.0.pc.in
+++ b/gobject-introspection-1.0.pc.in
@@ -14,8 +14,10 @@ girdir=${datadir}/gir-1.0
 typelibdir=${libdir}/girepository-1.0
 
 Cflags: -I${includedir}/gobject-introspection-1.0 @FFI_PC_CFLAGS@
-Requires: glib-2.0 gobject-2.0 gmodule-2.0 @FFI_PC_PACKAGES@
-Libs: -L${libdir} -lgirepository-1.0 @FFI_PC_LIBS@
+Requires: glib-2.0 gobject-2.0
+Requires.private: gmodule-2.0 @FFI_PC_PACKAGES@
+Libs: -L${libdir} -lgirepository-1.0
+Libs.private: @FFI_PC_LIBS@
 
 Name: gobject-introspection
 Description: GObject Introspection
diff --git a/gobject-introspection-no-export-1.0.pc.in b/gobject-introspection-no-export-1.0.pc.in
index c798890..a6d6cc6 100644
--- a/gobject-introspection-no-export-1.0.pc.in
+++ b/gobject-introspection-no-export-1.0.pc.in
@@ -13,8 +13,10 @@ girdir=${datadir}/gir-1.0
 typelibdir=${libdir}/girepository-1.0
 
 Cflags: -I${includedir}/gobject-introspection-1.0 @FFI_PC_CFLAGS@
-Requires: glib-2.0 gobject-2.0 gmodule-no-export-2.0 @FFI_PC_PACKAGES@
-Libs: -L${libdir} -lgirepository-1.0 @FFI_PC_LIBS@
+Requires: glib-2.0 gobject-2.0
+Requires.private: gmodule-no-export-2.0 @FFI_PC_PACKAGES@
+Libs: -L${libdir} -lgirepository-1.0
+Libs.private: @FFI_PC_LIBS@
 
 Name: gobject-introspection
 Description: GObject Introspection