[cogl] Add test-unit.h to test-fixtures/Makefile.am

[Neil Roberts <nroberts src gnome org>]

commit d47b4d92187b9eb1b34998e02b96955afdd84a6e
Author: Neil Roberts <neil linux intel com>
Date:   Wed Jul 3 11:12:28 2013 +0100

    Add test-unit.h to test-fixtures/Makefile.am
    
    Otherwise make distcheck was breaking.
    
    Thanks to Rico Tzschichholz for pointing this out.
    
    Reviewed-by: Robert Bragg <robert linux intel com>

 test-fixtures/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/test-fixtures/Makefile.am b/test-fixtures/Makefile.am
index 62fd9d1..332c5ee 100644
--- a/test-fixtures/Makefile.am
+++ b/test-fixtures/Makefile.am
@@ -19,6 +19,7 @@ libtest_fixtures_la_CPPFLAGS += \
 libtest_fixtures_la_CFLAGS = -g3 -O0 $(COGL_DEP_CFLAGS) $(COGL_EXTRA_CFLAGS)
 
 libtest_fixtures_la_SOURCES = \
+       test-unit.h \
        test-utils.h \
        test-utils.c