[gnome-builder] makecache: fix -Wsign-compare warning

[Christian Hergert <chergert src gnome org>]

commit 3cd8bd09acd8c7987c9da930e08135924ffe041b
Author: Christian Hergert <chergert redhat com>
Date:   Tue Feb 28 12:26:56 2017 -0800

    makecache: fix -Wsign-compare warning

 plugins/autotools/ide-makecache.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/plugins/autotools/ide-makecache.c b/plugins/autotools/ide-makecache.c
index fec6782..aecd7df 100644
--- a/plugins/autotools/ide-makecache.c
+++ b/plugins/autotools/ide-makecache.c
@@ -408,7 +408,6 @@ ide_makecache_parse_c_cxx (IdeMakecache *self,
   g_auto(GStrv) argv = NULL;
   gboolean in_expand = FALSE;
   GError *error = NULL;
-  gsize i;
 
   g_assert (line != NULL);
   g_assert (ret != NULL);
@@ -424,7 +423,7 @@ ide_makecache_parse_c_cxx (IdeMakecache *self,
       return;
     }
 
-  for (i = 0; i < argc; i++)
+  for (gint i = 0; i < argc; i++)
     {
       const gchar *flag = argv [i];