>> >> It looks like there is code to attempt to deal with that sort of thing in our >> build system. See TOOLCHAIN_POST_DETECTION in make/autoconf/toolchain.m4. >> That >> dates back to JDK 9. However, that only deals with CFLAGS and CXXFLAGS. The >> AC_PROG_CC/CXX feature affects the CC/CXX variables. Bleh! > > Looks like we need to extend this functionality and filter out any > "-std*" flags added by autoconf from CC/CXX. Even if later "-std=c++14" > on the command line overrides correctly, it would be good for > sanitation. I think such a fix should be done in mainline to avoid > different behavior with different versions of autoconf. It can then be > backported to openjdk 11 to fix the more severe issue described here.
Hi Erik, I created : https://bugs.openjdk.org/browse/JDK-8323008 8323008: filter out any -std* flags added by autoconf from CC/CXX Feel free to add additional info to this JBS issue . Best regards, Matthias
