[Bug bootstrap/61432] New: Build error gcc 4.9 on OSX 10.10

[denji0k at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61432

            Bug ID: 61432
           Summary: Build error gcc 4.9 on OSX 10.10
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: denji0k at gmail dot com

Have problem build with OSX 10.10

checking build system type... x86_64-apple-darwin14.0.0
xgcc: warning: couldn’t understand kern.osversion ‘14.0.0

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/usr/include/Availability.h:174:44:
error: missing binary operator before token "("
 #if defined(__has_feature) &&
__has_feature(attribute_availability_with_message)
                                            ^

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/usr/include/Availability.h:184:44:
error: missing binary operator before token "("
 #if defined(__has_feature) &&
__has_feature(attribute_availability_app_extension)
                                            ^

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/usr/include/Availability.h:184:44:
error: missing binary operator before token "("
 #if defined(__has_feature) &&
__has_feature(attribute_availability_app_extension)
                                            ^