mac下安装mysqldb时出现的问题

warning: GMP or MPIR library not found; Not building Crypto.PublicKey._fastmath. 
building 'Crypto.Hash._MD2' extension 
cc -fno-strict-aliasing -fno-common -dynamic -arch x86_64 -arch i386 -pipe -fno-common -fno-strict-aliasing -fwrapv -mno-fused-madd -DENABLE_DTRACE
-DMACOSX -Wall -Wstrict-prototypes -Wshorten-64-to-32 -fwrapv -Wall -Wstrict-prototypes -DENABLE_DTRACE -arch x86_64 -arch i386 -pipe -std=c99 -O3 -fomit-frame-pointer -Isrc/ -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c src/MD2.c
-o build/temp.macosx-10.9-intel-2.7/src/MD2.o 
clang: error: unknown argument: '-mno-fused-madd' [-Wunused-command-line-argument-hard-error-in-future] 
clang: note: this will be a hard error (cannot be downgraded to a warning) in the future 
error: command 'cc' failed with exit status 1 

网上说是gcc版本不兼容的的问题

百度一下很多人将卸载xcode和commond-line-tools,但是这样太麻烦了 而且不知道怎么卸载

再百度得知

clang并不支持这个参数, 做一下修改把他改成warning. 

export CFLAGS=-Qunused-arguments 
export CPPFLAGS=-Qunused-arguments 

这样就ok了.