xcode - xcrun clang --sysroot 找不到 stdio.h

Question

使用Xcode 4.6，在Mac OS X 10.8.2 下，为了编译hello.c，我发出了xcrun gcc cannot find header files 中推荐的xcrun 命令。但仍然收到无法找到头文件stdio.h 的错误。

 $ xcrun clang --sysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk/ -o hello hello.c
 hello.c:2:10: fatal error: 'stdio.h' file not found
 #include <stdio.h>
     ^
 1 error generated.
 $ cat hello.c
 /* C program, Hello World */
 #include <stdio.h>
 int main()
 {
  printf("Hello World \n");
 }

Answer 1

它应该与:
xcrun clang -isysroot/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk/