[gtk-doc/win-no-msys: 2/7] tests/gobject/src: Export symbols on MSVC builds

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

commit a727142335c3777b47bf94a7b41c0927caec6236
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Fri Apr 17 15:22:29 2020 +0800

    tests/gobject/src: Export symbols on MSVC builds
    
    Override _GTKDOC_TESTER_API with __declspec(dllexport) so that symbols are
    exported from the built DLL.

 tests/gobject/src/meson.build | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/tests/gobject/src/meson.build b/tests/gobject/src/meson.build
index 155f5af..08c27e6 100644
--- a/tests/gobject/src/meson.build
+++ b/tests/gobject/src/meson.build
@@ -18,6 +18,7 @@ gobject_test_deps = [
 extra_cflags = []
 if cc.get_id() == 'msvc'
   extra_cflags += '/FImsvc_recommended_pragmas.h'
+  extra_cflags += '/D_GTKDOC_TESTER_API=__declspec(dllexport)'
   extra_cflags += cc.get_supported_arguments(['/utf-8'])
 endif