[gtk] build: The private reftest library needs to be shared

[Benjamin Otte <otte src gnome org>]

commit a8dccef50746bf5ae3425b5be71e2093aab41205
Author: Benjamin Otte <otte redhat com>
Date:   Fri Mar 29 09:43:16 2019 +0100

    build: The private reftest library needs to be shared
    
    Otherwise the module and gtk-reftest will each have their own copy and
    that'll mean all symbols - and inhibiting the shutdown - will exist
    twice. Not good.

 testsuite/reftests/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/testsuite/reftests/meson.build b/testsuite/reftests/meson.build
index a9c3608b45..e1a24c5163 100644
--- a/testsuite/reftests/meson.build
+++ b/testsuite/reftests/meson.build
@@ -1,5 +1,5 @@
 # FIXME: $(no_undefined) ?
-libgtkreftestprivate = static_library('gtkreftestprivate',
+libgtkreftestprivate = shared_library('gtkreftestprivate',
   'reftest-compare.c', 'reftest-module.c', 'reftest-snapshot.c',
   dependencies : libgtk_dep)