[longomatch] Make sure to use the 4.5 sdk

[Andoni Morales Alastruey <amorales src gnome org>]

commit e761e8eff937a49e3ca0d1d0f9a14bb734dd6951
Author: Jorge Zapata <jorgeluis zapata gmail com>
Date:   Wed Apr 15 18:12:32 2015 +0200

    Make sure to use the 4.5 sdk

 build/build.rules.mk |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/build/build.rules.mk b/build/build.rules.mk
index 557fc59..6117c5d 100644
--- a/build/build.rules.mk
+++ b/build/build.rules.mk
@@ -67,7 +67,7 @@ $(ASSEMBLY_FILE): $(SOURCES_BUILD) $(RESOURCES_EXPANDED) $(DEP_LINK)
                $(GMCS_FLAGS) \
                $(ASSEMBLY_BUILD_FLAGS) \
                -nowarn:0278 -nowarn:0078 $$warn -unsafe \
-               -define:HAVE_GTK -codepage:utf8 \
+               -define:HAVE_GTK -codepage:utf8 -sdk:4.5 \
                -debug -target:$(TARGET) -out:$@ \
                $(BUILD_DEFINES) $(ENABLE_TESTS_FLAG) $(ENABLE_ATK_FLAG) \
                $(FILTERED_LINK) $(RESOURCES_BUILD) $(SOURCES_BUILD)