gyp: Don't pass C++ flags to C compiler, and don't pass -ansi in OpenSSL builds.

common.gypi

@@ -104,7 +104,8 @@
         ],
       }],
       [ 'OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris"', {
-        'cflags': [ '-Wall', '-pthread', '-fno-rtti', '-fno-exceptions' ],
+        'cflags': [ '-Wall', '-pthread', ],
+        'cflags_cc': [ '-fno-rtti', '-fno-exceptions' ],
         'ldflags': [ '-pthread', ],
         'conditions': [
           [ 'target_arch=="ia32"', {

deps/openssl/openssl.gyp

@@ -16,6 +16,10 @@
         '_REENTRANT',
       ],
 
+      'cflags!': [
+        '-ansi'
+      ],
+
       'conditions': [
         ['OS=="win"', {
           'defines': [