[gobject-introspection] tests: Add a Header for Symbol Exporting

[Chun-wei Fan <fanchunwei src gnome org>]

commit 4bfe7f1da88c6bd73cc51666a13840661ab9edb1
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Tue Aug 12 11:42:25 2014 +0800

    tests: Add a Header for Symbol Exporting
    
    This adds a header under tests/ that can be included by the various test
    libraries/sources so that symbols from them can be decorated by a macro,
    which can then be used to export symbols by using a compiler directive,
    like the updates to girepository.  This header is also installed as the
    test headers refer to them.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=732669

 tests/Makefile.am    |    6 ++++--
 tests/gitestmacros.h |   10 ++++++++++
 2 files changed, 14 insertions(+), 2 deletions(-)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 26b5910..8bcf74e 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -14,7 +14,8 @@ tests_DATA =              \
     everything.c           \
     everything.h           \
     gimarshallingtests.c    \
-    gimarshallingtests.h
+    gimarshallingtests.h    \
+    gitestmacros.h
 
 EXTRA_LTLIBRARIES = libeverything-1.0.la libgimarshallingtests-1.0.la
 
@@ -23,7 +24,8 @@ libgimarshallingtests_1_0_la_SOURCES = gimarshallingtests.c
 
 EXTRA_DIST += \
        gimarshallingtests.h \
-       gi-tester
+       gi-tester \
+       gitestmacros.h
 
 BUILT_SOURCES += everything.c everything.h
 
diff --git a/tests/gitestmacros.h b/tests/gitestmacros.h
new file mode 100644
index 0000000..527578d
--- /dev/null
+++ b/tests/gitestmacros.h
@@ -0,0 +1,10 @@
+#ifndef __GITESTMACROS_H__
+#define __GITESTMACROS_H__
+
+#ifndef _GI_EXTERN
+#define _GI_EXTERN extern
+#endif
+
+#define _GI_TEST_EXTERN _GI_EXTERN
+
+#endif