28318 2013-01-08 22:12:00 +0400 С помощью clang3.1 не собираются программы 2014-04-11 00:41:46 +0400 1 1 4 Development Sisyphus clang unstable all Linux CLOSED FIXED https://bugzilla.redhat.com/show_bug.cgi?id=750187 P3 normal --- 1 lav arseny arseny lakostis real.altlinux.org qa-sisyphus oldest_to_newest 136661 0 lav 2013-01-08 22:12:00 +0400 Steps to Reproduce: 1. echo 'int main(void) {return 0;}' > testcase.c 2. clang testcase.c Actual results: /usr/bin/ld: cannot find crtbegin.o: No such file or directory /usr/bin/ld: cannot find -lgcc $ clang -v testcase.c clang version 3.1 (branches/release_31) Target: i386-alt-linux-gnu Thread model: posix "/usr/bin/clang" -cc1 -triple i386-alt-linux-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name testcase.c -mrelocation-model static -mdisable-fp-elim -masm-verbose -mconstructor-aliases -target-cpu pentium4 -target-linker-version 2.23.51.0.1 -momit-leaf-frame-pointer -v -resource-dir /usr/bin/../lib/clang/3.1 -fmodule-cache-path /tmp/.private/lav/clang-module-cache -internal-isystem /usr/local/include -internal-isystem /usr/bin/../lib/clang/3.1/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -fdebug-compilation-dir /tmp/.private/lav/RPM/BUILD/darling-0.0.0/CMakeFiles -ferror-limit 19 -fmessage-length 134 -mstackrealign -fgnu-runtime -fobjc-runtime-has-arc -fobjc-runtime-has-weak -fobjc-fragile-abi -fdiagnostics-show-option -fcolor-diagnostics -o /tmp/.private/lav/testcase-GCYH2L.o -x c testcase.c clang -cc1 version 3.1 based upon LLVM 3.1 default target i386-alt-linux-gnu ignoring nonexistent directory "/include" #include "..." search starts here: #include <...> search starts here: /usr/local/include /usr/bin/../lib/clang/3.1/include /usr/include End of search list. "/usr/bin/ld" --eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o a.out /usr/lib/crt1.o /usr/lib/crti.o crtbegin.o -L/lib -L/usr/lib /tmp/.private/lav/testcase-GCYH2L.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed crtend.o /usr/lib/crtn.o /usr/bin/ld: cannot find crtbegin.o: Нет такого файла или каталога /usr/bin/ld: cannot find -lgcc clang: error: linker command failed with exit code 1 (use -v to see invocation) Он там пытается рыться в куче каталогов, но, видимо, не находит /usr/lib/gcc/i586-alt-linux/4.7.2 Вот strace: openat(AT_FDCWD, "/usr/lib/gcc/i686-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i686-linux-gnu/gcc/i686-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/i686-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/i686-pc-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i686-pc-linux-gnu/gcc/i686-pc-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/i686-pc-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/i486-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i486-linux-gnu/gcc/i486-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/i486-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/i386-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/i386-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/i386-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/i686-redhat-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i686-redhat-linux/gcc/i686-redhat-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/i686-redhat-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/i586-redhat-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i586-redhat-linux/gcc/i586-redhat-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/i586-redhat-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/i386-redhat-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-redhat-linux/gcc/i386-redhat-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/i386-redhat-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/i586-suse-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i586-suse-linux/gcc/i586-suse-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/i586-suse-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/i486-slackware-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i486-slackware-linux/gcc/i486-slackware-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/i486-slackware-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/i386-alt-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-alt-linux-gnu/gcc/i386-alt-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/i386-alt-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/x86_64-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/x86_64-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/x86_64-unknown-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/x86_64-unknown-linux-gnu/gcc/x86_64-unknown-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/x86_64-unknown-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/x86_64-pc-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/x86_64-pc-linux-gnu/gcc/x86_64-pc-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/x86_64-pc-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/x86_64-redhat-linux6E", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/x86_64-redhat-linux6E/gcc/x86_64-redhat-linux6E", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/x86_64-redhat-linux6E", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/x86_64-redhat-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/x86_64-redhat-linux/gcc/x86_64-redhat-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/x86_64-redhat-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/x86_64-suse-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/x86_64-suse-linux/gcc/x86_64-suse-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/x86_64-suse-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/x86_64-manbo-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/x86_64-manbo-linux-gnu/gcc/x86_64-manbo-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/x86_64-manbo-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/x86_64-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/x86_64-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/x86_64-slackware-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/x86_64-slackware-linux/gcc/x86_64-slackware-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/x86_64-slackware-linux", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/gcc/x86_64-alt-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/x86_64-alt-linux-gnu/gcc/x86_64-alt-linux-gnu", O_RDONLY...) = -1 ENOENT openat(AT_FDCWD, "/usr/lib/i386-linux-gnu/gcc/x86_64-alt-linux-gnu", O_RDONLY...) = -1 ENOENT Мне кажется, весь этот поиск в корне вреден. 142313 1 glebfm 2013-08-29 13:16:06 +0400 (In reply to comment #0) > Мне кажется, весь этот поиск в корне вреден. Тем не менее, так устроен clang... Его придётся пересобирать даже с минорными релизами gcc. Ну, или захакать. 146135 2 glebfm 2014-04-11 00:41:46 +0400 Современные версии clang (>=3.4) научились в итоге всех этих вредных проверок всё же находить разные версии нашего gcc -- лишние пересборки теперь не нужны и clang теперь не привязан к конкретной версии gcc, ему подойдёт любая.