scanner: Include all headers when building the dumper binary

This avoids warnings about undefined functions when using init sections
and it removes the requirement to predeclare the get_type functions that
should be called. For an example for this problem with GStreamer, see
https://bugzilla.gnome.org/show_bug.cgi?id=639039

We can now also use gcc's error checking to ensure that users
- specify the correct C includes in the gir file (because otherwise we
  get errors when compiling the dumper).
- the types do actually exist (because again, the compiler will
  complain).

1 files changed, 3 insertions, 0 deletions

diff --git a/giscanner/dumper.py b/giscanner/dumper.py
index 3ea43e2c..538fe0e4 100644
--- a/giscanner/dumper.py
+++ b/giscanner/dumper.py
@@ -37,6 +37,8 @@ _PROGRAM_TEMPLATE = """/* This file is generated, do not edit */
 #include <string.h>
 #include <stdlib.h>
 
+%(c_include)s
+
 %(gdump_include)s
 
 int
@@ -107,6 +109,7 @@ class DumpCompiler(object):
         gdump_file = open(gdump_path)
         gdump_contents = gdump_file.read()
         gdump_file.close()
+        tpl_args['c_include'] = "\n".join("#include <%s>" % i for i in self._options.c_includes)
         tpl_args['gdump_include'] = gdump_contents
         tpl_args['init_sections'] = "\n".join(self._options.init_sections)