[I experiment with system-clang based buildworld and/or buildkernel based TARGET_ARCH=powerpc64 and TARGET_ARCH=powerpc environments.]
For TARGET_ARCH=powerpc devel/llvm40 and devel/llvm50 get failure reports like: -- Looking for __atomic_load_8 in atomic - not found CMake Error at cmake/modules/CheckAtomic.cmake:74 (message): Host compiler appears to require libatomic, but cannot find it. Call Stack (most recent call first): cmake/config-ix.cmake:307 (include) CMakeLists.txt:582 (include) I had tried to avoid any need for 8-Byte atomics (among other things) by avoiding LIT, LLD, and LLDB: # more /usr/local/etc/poudriere.d/options/devel_llvm50/options # This file is auto-generated by 'make config'. # Options for llvm50-5.0.0_1 _OPTIONS_READ=llvm50-5.0.0_1 _FILE_COMPLETE_OPTIONS_LIST=CLANG DOCS EXTRAS LIT LLD LLDB OPTIONS_FILE_SET+=CLANG OPTIONS_FILE_SET+=DOCS OPTIONS_FILE_SET+=EXTRAS OPTIONS_FILE_UNSET+=LIT OPTIONS_FILE_UNSET+=LLD OPTIONS_FILE_UNSET+=LLDB # more /usr/local/etc/poudriere.d/options/devel_llvm40/options # This file is auto-generated by 'make config'. # Options for llvm40-4.0.1_1 _OPTIONS_READ=llvm40-4.0.1_1 _FILE_COMPLETE_OPTIONS_LIST=CLANG DOCS EXTRAS LIT LLD LLDB OPTIONS_FILE_SET+=CLANG OPTIONS_FILE_SET+=DOCS OPTIONS_FILE_SET+=EXTRAS OPTIONS_FILE_UNSET+=LIT OPTIONS_FILE_UNSET+=LLD OPTIONS_FILE_UNSET+=LLDB For clang-based buildworld avoiding such things prevents running into the 8-Byte atomics based build failures: WITH_LIBCPLUSPLUS= WITH_BINUTILS_BOOTSTRAP= WITH_ELFTOOLCHAIN_BOOTSTRAP= #WITH_CLANG_BOOTSTRAP= WITH_CLANG= WITH_CLANG_IS_CC= WITH_CLANG_FULL= WITH_CLANG_EXTRAS= WITH_LLD= # lldb requires missing atomic 8-byte operations for powerpc (non-64) WITHOUT_LLDB= # WITH_BOOT= (Note: buildkernel currently fails.) # clang++ --version FreeBSD clang version 5.0.0 (tags/RELEASE_500/final 312559) (based on LLVM 5.0.0svn) Target: powerpc-unknown-freebsd12.0 Thread model: posix InstalledDir: /usr/bin # uname -apKU FreeBSD FBSDG4S 12.0-CURRENT FreeBSD 12.0-CURRENT r326192M powerpc powerpc 1200054 1200054 # svnlite info /usr/ports/ | grep "Re[plv]" Relative URL: ^/head Repository Root: https://svn.freebsd.org/ports Repository UUID: 35697150-7ecd-e111-bb59-0022644237b5 Revision: 455204 Last Changed Rev: 455204 === Mark Millard markmi at dsl-only.net _______________________________________________ freebsd-ports@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-ports To unsubscribe, send any mail to "freebsd-ports-unsubscr...@freebsd.org"
