diff --git a/configure b/configure
index f97f9dc..c401710 100755
--- a/configure
+++ b/configure
@@ -25062,6 +25062,12 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 echo "$as_me: WARNING: Could not find the PC.  Will not output failed addresses..." >&2;}
    fi
 
+
+cat >>confdefs.h <<_ACEOF
+#define TEST_SRC_DIR "$srcdir"
+_ACEOF
+
+
 # These are what's needed by logging.h.in and raw_logging.h.in
 
 
diff --git a/configure.ac b/configure.ac
index 13a2681..fd3a123 100644
--- a/configure.ac
+++ b/configure.ac
@@ -176,6 +176,8 @@ AC_CXX_USING_OPERATOR
 
 AC_PC_FROM_UCONTEXT(AC_MSG_WARN(Could not find the PC.  Will not output failed addresses...))
 
+AC_DEFINE_UNQUOTED(TEST_SRC_DIR, "$srcdir", [location of source code])
+
 # These are what's needed by logging.h.in and raw_logging.h.in
 AC_SUBST(ac_google_start_namespace)
 AC_SUBST(ac_google_end_namespace)
diff --git a/src/config.h.in b/src/config.h.in
index 99bd0da..b5454ba 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -145,6 +145,9 @@
 /* the namespace where STL code like vector<> is defined */
 #undef STL_NAMESPACE
 
+/* location of source code */
+#undef TEST_SRC_DIR
+
 /* Version number of package */
 #undef VERSION
 
diff --git a/src/googletest.h b/src/googletest.h
index c1df14e..c9e413e 100644
--- a/src/googletest.h
+++ b/src/googletest.h
@@ -85,7 +85,8 @@ static inline string GetTempDir() {
 // The test will run in glog/vsproject/<project name>
 // (e.g., glog/vsproject/logging_unittest).
 static const char TEST_SRC_DIR[] = "../..";
-#else
+#elif !defined(TEST_SRC_DIR)
+# warning TEST_SRC_DIR should be defined in config.h
 static const char TEST_SRC_DIR[] = ".";
 #endif