铿锵-2.9 crt1未找到错误

Question

刚刚编译的铿锵-2.9版本，它不能链接世界你好的例子。还有就是错误：

crt1.o: No such file: No such file or directory 

LLVM配置为默认+ --enable-shared。具有相同选项的llvm-2.8版本在同一台机器上正常工作。

$ clang -v a.c 
clang version 2.9 (tags/RELEASE_29/final) 
Target: i386-pc-linux-gnu 
Thread model: posix 
"/root/bin/clang" -cc1 -triple i386-pc-linux-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name a.c -mrelocation-model static -mdisable-fp-elim -masm-verbose -mconstructor-aliases -target-cpu pentium4 -target-linker-version 2.18 -momit-leaf-frame-pointer -v -resource-dir /root/lib/clang/2.9 -ferror-limit 19 -fmessage-length 157 -fgnu-runtime -fdiagnostics-show-option -fcolor-diagnostics -o /tmp/cc-2ueoYy.o -x c a.c 
clang -cc1 version 2.9 based upon llvm 2.9 hosted on i386-pc-linux-gnu 
ignoring nonexistent directory "/usr/local/include" 
#include "..." search starts here: 
#include <...> search starts here: 
/root/lib/clang/2.9/include 
/usr/include 
End of search list. 
a.c:1:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int] 
main(){} 
^~~~ 
1 warning generated. 
"/usr/bin/ld" --eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o a.out crt1.o crti.o crtbegin.o -L -L/../../.. /tmp/cc-2ueoYy.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed crtend.o crtn.o 
/usr/bin/ld: crt1.o: No such file: No such file or directory 
clang: error: linker command failed with exit code 1 (use -v to see invocation) 

同样的错误在这里http://permalink.gmane.org/gmane.comp.compilers.clang.devel/12101 和http://comments.gmane.org/gmane.comp.compilers.clang.devel/14269和http://permalink.gmane.org/gmane.comp.compilers.llvm.bugs/11352

我可以边学边用LLVM-2.8比较 - 新版本试图组装文件本身，和旧版本的GCC调用做组装并链接步骤。

请不要复制clang linker problem，因为我无法编辑LLVM的源代码，因此接受的解决方案对我无用。

Answer 1

截至http://permalink.gmane.org/gmane.comp.compilers.llvm.bugs/11352（LLVM错误8897），这是因为

gcc used to build clang is not in a standard location 

或

system gcc is not listed in the ToolChains.cpp GccVersions list: 

./tools/clang/lib/Driver/ToolChains.cpp: const char* GccVersions[] = {"4.5.2", "4.5.1", "4.5", "4.4.5", "4.4.4", 
./tools/clang/lib/Driver/ToolChains.cpp-        "4.4.3", "4.4", "4.3.4", "4.3.3", "4.3.2", 
./tools/clang/lib/Driver/ToolChains.cpp-        "4.3", "4.2.4", "4.2.3", "4.2.2", "4.2.1", 
./tools/clang/lib/Driver/ToolChains.cpp-        "4.2"}; 

两种情况都是为我安装正确建议。

要解决这个问题，我会尝试将我的gcc版本添加到列表GccVersions[]。

这可以帮助我。