diff -pruN gyp.orig/pylib/gyp/generator/make.py gyp/pylib/gyp/generator/make.py

--- gyp.orig/pylib/gyp/generator/make.py	2011-08-23 16:47:59.000000000 +0900

+++ gyp/pylib/gyp/generator/make.py	2011-08-23 17:31:13.000000000 +0900

@@ -1554,6 +1554,7 @@ $(obj).$(TOOLSET)/$(TARGET)/%%.o: $(obj)

     # Write configuration-specific variables for CFLAGS, etc.

     for configname in sorted(configs.keys()):

       config = configs[configname]

+      rpmoptflags = ['$(RPM_OPT_FLAGS)']

       self.WriteList(config.get('defines'), 'DEFS_%s' % configname, prefix='-D',

           quoter=EscapeCppDefine)

@@ -1565,8 +1566,20 @@ $(obj).$(TOOLSET)/$(TARGET)/%%.o: $(obj)

         cflags_objcc = self.xcode_settings.GetCflagsObjCC(configname)

       else:

         cflags = config.get('cflags')

+        if cflags:

+          cflags += rpmoptflags

+        else:

+          cflags = rpmoptflags

         cflags_c = config.get('cflags_c')

+        if cflags_c:

+          cflags_c += rpmoptflags

+        else:

+          cflags_c = rpmoptflags

         cflags_cc = config.get('cflags_cc')

+        if cflags_cc:

+          cflags_cc += rpmoptflags

+        else:

+          cflags_cc = rpmoptflags

       self.WriteLn("# Flags passed to all source files.");

       self.WriteList(cflags, 'CFLAGS_%s' % configname)