> On Oct 16, 2014, at 11:29 AM, Ryan Schmidt wrote: > >> On Oct 16, 2014, at 9:24 AM, davidnich...@macports.org wrote: >> >> Revision >> 126852 >> Author >> davidnich...@macports.org >> Date >> 2014-10-16 07:24:39 -0700 (Thu, 16 Oct 2014) >> Log Message >> >> blacklisted the Xcode 4.2 compiler so that the mpfr lib can be build with >> threading enabled and therefore programs (such as Qore) that require a >> thread-safe mpfr library no longer assert() and otherwise crash due to >> threading issues with the mpfr library >> Modified Paths >> >> • trunk/dports/devel/mpfr/Portfile >> Diff >> >> Modified: trunk/dports/devel/mpfr/Portfile (126851 => 126852) > >> @@ -84,8 +85,10 @@ >> >> # Due to radr://10291355 (llvm.org PR11111), the new tls support enabled in >> clang with Xcode 4.2 >> # miscompiles mpfr. While this was fixed in Xcode 4.2.1, as the ttls support >> was never used prior to >> -# Xcode 4.2, the generic fix is to pass --disable-thread-safe to configure. >> -configure.args --disable-thread-safe >> +# Xcode 4.2, the generic fix is to pass --disable-thread-safe to configure, >> however this will break >> +# any project that requires a thread-safe mpfr library, therefore the Xcode >> 4.2 compiler is >> +# blacklisted here >> +compiler.blacklist *llvm-gcc-4.2 > > I'm not sure I understand the reference to "the Xcode 4.2 compiler" here. > Xcode 4.2, like Xcode versions before it, comes with more than one compiler. > llvm-gcc-4.2 is one of them, but it also includes clang; clang is the default > even. So if the problem is, as the comment states, that Xcode 4.2's clang > miscompiles mpfr, then you need to use the compiler_blacklist_versions > portgroup to blacklist Xcode 4.2's version of clang.
Oh: I forgot: we changed the default compiler for Xcode 4.2 from clang to llvm-gcc-4.2 in r118085 to match Xcode 4.1 and 4.0. Still, we have a mismatch between the comment and the blacklist. Either the comment is wrong or incomplete, or the blacklist is wrong or incomplete. _______________________________________________ macports-dev mailing list macports-dev@lists.macosforge.org https://lists.macosforge.org/mailman/listinfo/macports-dev
