[librest] introspection: add info about C headers to use

[Christophe Fergeau <teuf src gnome org>]

commit b1c568650ab4967db506e1c618a9950a959dabb3
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Fri Jun 15 12:22:38 2012 +0200

    introspection: add info about C headers to use
    
    vapigen needs this information to be able to generate correct
    .vapi files.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=678153

 rest-extras/Makefile.am |    3 +++
 rest/Makefile.am        |    2 ++
 2 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/rest-extras/Makefile.am b/rest-extras/Makefile.am
index fd0858e..dbf4fae 100644
--- a/rest-extras/Makefile.am
+++ b/rest-extras/Makefile.am
@@ -52,6 +52,9 @@ INTROSPECTION_GIRS = RestExtras- API_VERSION@.gir
 INTROSPECTION_SCANNER_ARGS = --add-include-path=$(top_builddir)/rest --identifier-prefix=
 INTROSPECTION_COMPILER_ARGS = --includedir=$(top_builddir)/rest
 
+REST_EXTRAS_CINCLUDES=$(patsubst %,--c-include='rest/%',$(shell echo $(lib_headers)))
+INTROSPECTION_SCANNER_ARGS += $(REST_EXTRAS_CINCLUDES)
+
 RestExtras- API_VERSION@.gir: librest-extras- API_VERSION@.la Makefile
 
 RestExtras_ API_VERSION_AM@_gir_NAMESPACE = RestExtras
diff --git a/rest/Makefile.am b/rest/Makefile.am
index 7e7ed0a..e8a313f 100644
--- a/rest/Makefile.am
+++ b/rest/Makefile.am
@@ -101,6 +101,8 @@ Rest_ API_VERSION_AM@_gir_INCLUDES = GObject-2.0 Gio-2.0
 Rest_ API_VERSION_AM@_gir_PACKAGES = gobject-2.0 libsoup-2.4 libxml-2.0 gio-2.0
 Rest_ API_VERSION_AM@_gir_SCANNERFLAGS = --accept-unprefixed
 Rest_ API_VERSION_AM@_gir_EXPORT_PACKAGES = rest- API_VERSION@
+REST_CINCLUDES=$(patsubst %,--c-include='rest/%',$(shell echo $(lib_headers)))
+INTROSPECTION_SCANNER_ARGS = $(REST_CINCLUDES)
 
 girdir = $(datadir)/gir-1.0
 dist_gir_DATA = $(INTROSPECTION_GIRS)