workaround for building with express toolchain on windows

intsafe.h and stdint.h both define INT8_MIN et al. with no guards,
and so can't both be included. Because dependencies do this deep
in their internals, avoid this problem by including intsafe.h,
and then #undef'ing the conflicts in precompile.h (which is included
in all .cc files). intsafe.h's include guard symbol stays defined
so that any subsequent inclusions do not cause problems.

R=thestig@chromium.org
BUG=225822


Review URL: https://chromiumcodereview.appspot.com/13484002

git-svn-id: http://src.chromium.org/svn/trunk/src/build@192341 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

precompile.h

@@ -106,3 +106,22 @@
 #include <string>
 #include <utility>
 #include <vector>
+
+// Workaround for:
+// http://connect.microsoft.com/VisualStudio/feedback/details/621653/
+// http://crbug.com/225822
+// Note that we can't actually include <stdint.h> here because there's other
+// code in third_party that has partial versions of stdint types that conflict.
+#include <intsafe.h>
+#undef INT8_MIN
+#undef INT16_MIN
+#undef INT32_MIN
+#undef INT64_MIN
+#undef INT8_MAX
+#undef UINT8_MAX
+#undef INT16_MAX
+#undef UINT16_MAX
+#undef INT32_MAX
+#undef UINT32_MAX
+#undef INT64_MAX
+#undef UINT64_MAX