add AM_CPPFLAGS to run_unittests_CPPFLAGS

git-svn-id: svn://bind10.isc.org/svn/bind10/trunk@2519 e5f2f494-b856-4b98-b285-d166d9295462

src/lib/exceptions/Makefile.am

@@ -11,7 +11,7 @@ if HAVE_GTEST
 TESTS += run_unittests
 run_unittests_SOURCES = run_unittests.cc
 run_unittests_SOURCES += exceptions_unittest.cc
-run_unittests_CPPFLAGS = $(GTEST_INCLUDES)
+run_unittests_CPPFLAGS = $(AM_CPPFLAGS) $(GTEST_INCLUDES)
 run_unittests_LDFLAGS = $(GTEST_LDFLAGS)
 run_unittests_LDADD = .libs/libexceptions.a $(GTEST_LDADD)
 endif