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我正在尝试在 OS X 上安装 big float，但遇到了多个问题。我已经安装了 amp 没有任何问题，但是当我尝试安装 mpfr 时出现此错误：

Warning: mpfr-3.1.5 already installed, it's just not linked.

这是什么意思？（我正在使用自制软件）。

然后，显然，如果我尝试安装 bigfloat 它不起作用，我得到这个错误：

Collecting bigfloat
Downloading bigfloat-0.3.0.tar.gz (216kB)
100% |████████████████████████████████| 225kB 1.6MB/s 
Installing collected packages: bigfloat
Running setup.py install for bigfloat ... error
Complete output from command /Users/name/anaconda2/bin/python -u -c "import setuptools, tokenize;__file__='/private/tmp/pip-build-VCyOBn/bigfloat/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" build_ext -I/usr/local/include -L/usr/local/lib install --record /tmp/pip-K9AHsP-record/install-record.txt --single-version-externally-managed --compile:
running build_ext
building 'mpfr' extension
creating build
creating build/temp.macosx-10.7-x86_64-2.7
gcc -fno-strict-aliasing -I/Users/name/anaconda2/include -arch x86_64 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/include -I/Users/name/anaconda2/include/python2.7 -c mpfr.c -o build/temp.macosx-10.7-x86_64-2.7/mpfr.o
In file included from /usr/local/lib/gcc/x86_64-apple-darwin15.6.0/6.2.0/include-fixed/syslimits.h:7:0,
                 from /usr/local/lib/gcc/x86_64-apple-darwin15.6.0/6.2.0/include-fixed/limits.h:34,
                 from /Users/name/anaconda2/include/python2.7/Python.h:19,
                 from mpfr.c:16:
/usr/local/lib/gcc/x86_64-apple-darwin15.6.0/6.2.0/include-fixed/limits.h:168:61: fatal error: limits.h: No such file or directory
 #include_next <limits.h>  /* recurse down to the real one */
                                                             ^
compilation terminated.
error: command 'gcc' failed with exit status 1

----------------------------------------
Command "/Users//anaconda2/bin/python -u -c "import setuptools,      tokenize;__file__='/private/tmp/pip-build-VCyOBn/bigfloat/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" build_ext -I/usr/local/include -L/usr/local/lib install --record /tmp/pip-K9AHsP-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/tmp/pip-build-VCyOBn/bigfloat/
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1 回答 1

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你必须安装python-devel

在 OS X 中尝试卸载并再次安装：

brew uninstall python
brew install python

同样根据this issue，Osx GCC（这只是clang的符号链接）不OpenMP提供开箱即用的支持。您可以GCC使用OpenMP.

brew install gcc --without-multilib
于 2017-05-04T09:43:52.307 回答