Move -DHAVE_GCC_BUILTIN_ATOMIC to solenv/gbuild

Change-Id: I82f62c998837783ac69317123268b0c87f74425f

sal/Library_sal.mk

@@ -40,9 +40,6 @@ $(eval $(call gb_Library_set_include,sal,\
 ))
 
 $(eval $(call gb_Library_add_defs,sal,\
-	$(if $(filter $(HAVE_GCC_BUILTIN_ATOMIC),TRUE), \
-		-DHAVE_GCC_BUILTIN_ATOMIC \
-	) \
 	$(if $(VALGRIND_CFLAGS), \
 		$(VALGRIND_CFLAGS) \
 		-DHAVE_MEMCHECK_H=1 \

solenv/gbuild/platform/com_GCC_defs.mk

@@ -57,6 +57,12 @@ gb_COMPILERDEFS := \
 	-DCPPU_ENV=gcc3 \
 	-DGXX_INCLUDE_PATH=$(GXX_INCLUDE_PATH) \
 
+ifeq ($(HAVE_GCC_BUILTIN_ATOMIC),TRUE)
+gb_COMPILERDEFS += \
+    -DHAVE_GCC_BUILTIN_ATOMIC \
+
+endif
+
 gb_CFLAGS_COMMON := \
 	-Wall \
 	-Wendif-labels \