在我的mac上运行make on gdb 7.6时出错

Question

我遇到了以下我为gdb运行make的错误。 这是在运行带有i7处理器的OS X 10.8.5的mac上运行configure之后。

gcc版本是

$ gcc -v
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --withgxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 5.0 (clang-500.2.76) (based on LLVM 3.3svn    
Target: x86_64-apple-darwin12.5.0
Thread model: posix

错误：

/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12078:18: error: adding 'char' to a string does not append to the string [-Werror,-Wstring-plus-int]
  oappend ("%st" + intel_syntax);
           ~~~~~~^~~~~~~~~~~~~~
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12078:18: note: use array indexing to silence this warning
  oappend ("%st" + intel_syntax);
                 ^
           &     [             ]
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12609:23: error: adding 'char' to a string does not append to the string [-Werror,-Wstring-plus-int]
      oappend ("%cs:" + intel_syntax);
               ~~~~~~~^~~~~~~~~~~~~~
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12609:23: note: use array indexing to silence this warning
      oappend ("%cs:" + intel_syntax);
                      ^
               &      [             ]
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12614:23: error: adding 'char' to a string does not append to the string [-Werror,-Wstring-plus-int]
      oappend ("%ds:" + intel_syntax);
               ~~~~~~~^~~~~~~~~~~~~~
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12614:23: note: use array indexing to silence this warning
      oappend ("%ds:" + intel_syntax);
                      ^
               &      [             ]
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12619:23: error: adding 'char' to a string does not append to the string [-Werror,-Wstring-plus-int]
      oappend ("%ss:" + intel_syntax);
               ~~~~~~~^~~~~~~~~~~~~~
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12619:23: note: use array indexing to silence this warning
      oappend ("%ss:" + intel_syntax);
                      ^
               &      [             ]
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12624:23: error: adding 'char' to a string does not append to the string [-Werror,-Wstring-plus-int]
      oappend ("%es:" + intel_syntax);
               ~~~~~~~^~~~~~~~~~~~~~
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12624:23: note: use array indexing to silence this warning
      oappend ("%es:" + intel_syntax);
                      ^
               &      [             ]
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12629:23: error: adding 'char' to a string does not append to the string [-Werror,-Wstring-plus-int]
      oappend ("%fs:" + intel_syntax);
               ~~~~~~~^~~~~~~~~~~~~~
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12629:23: note: use array indexing to silence this warning
      oappend ("%fs:" + intel_syntax);
                      ^
               &      [             ]
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12634:23: error: adding 'char' to a string does not append to the string [-Werror,-Wstring-plus-int]
      oappend ("%gs:" + intel_syntax);
               ~~~~~~~^~~~~~~~~~~~~~
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:12634:23: note: use array indexing to silence this warning
      oappend ("%gs:" + intel_syntax);
                      ^
               &      [             ]
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:13973:19: error: adding 'char' to a string does not append to the string [-Werror,-Wstring-plus-int]
  oappend ("%es:" + intel_syntax);
           ~~~~~~~^~~~~~~~~~~~~~
/Users/sbala/Downloads/gdb-7.6/opcodes/i386-dis.c:13973:19: note: use array indexing to silence this warning
  oappend ("%es:" + intel_syntax);
                  ^
           &      [             ]
8 errors generated.
make[4]: *** [i386-dis.lo] Error 1
make[3]: *** [all-recursive] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-opcodes] Error 2
make: *** [all] Error 2"

如果您需要更多详细信息，请与我们联系。

Answer 1

在OSX上构建gdb-7.6.1时，默认情况下启用了--enable-werror。

./configure --disable-werror
make

对我来说很好。

Answer 2

编译器过于挑剔，因此它会针对涉及字符串文字的指针算法发出警告。此外，您可能已将gdb配置为--enable-werror或-Werror从某处继承，因此这些无害警告会变为错误。 （您只显示了编译器的配置标志，而不是gdb。）

解决方案：关闭-Werror，或专门使用-Wno-string-plus-int（添加到CFLAGS）沉默此警告