[英]Install GMP library on Mac OS X 10.9 and Xcode
My question is as simple as the title. 我的问题就像标题一样简单。 I have a Macbook Pro with OS X Mavericks (10.9.4) and Xcode (5.1.1).
我有一个Mac OS Pro OS X Mavericks(10.9.4)和Xcode(5.1.1)。 I need to install the GMP arbitrary precision libraries so that I can just get to write GMP-enabled programs from within Xcode.
我需要安装GMP任意精度库,以便我可以从Xcode中编写支持GMP的程序。
./configure --prefix=/usr/local --enable-cxx
make
make check
sudo make install
But when I go to Xcode and just #include <gmpxx.h>
it doesn't find it. 但是当我去Xcode并且
#include <gmpxx.h>
它找不到它。 Also adding -lgmp to my linker flags causes an error. 将-lgmp添加到我的链接器标志会导致错误。
I also tried using homebrew with brew install gmp
but that didn't work either (same symptohms) 我也尝试过使用
brew install gmp
自制软件,但是也没用(同样的症状)
What is the correct way to solve this problem? 解决这个问题的正确方法是什么?
You need to ensure that you have an include path -I/usr/local/include
, before you can include <gmpxx.h>
(or <gmp.h>
for that matter). 在包含
<gmpxx.h>
(或<gmp.h>
)之前,您需要确保包含一个包含路径-I/usr/local/include
。
Also, adding -lgmp
is insufficient, since that's only the C interface. 另外,添加
-lgmp
是不够的,因为那只是C接口。 You want to link with -lgmpxx
(the C++ library), and possible specify the path to that library with -L/usr/local/lib
. 您想要链接
-lgmpxx
(C ++库),并且可以使用-L/usr/local/lib
指定该库的路径。
You can run otool -L /usr/local/lib/libgmpxx.dylib
, to ensure that libgmp.dylib
is already linked to it. 您可以运行
otool -L /usr/local/lib/libgmpxx.dylib
,以确保libgmp.dylib
已经链接到它。 Which it should be. 它应该是什么。
将Xcode项目设置中的标题搜索路径和库搜索路径分别设置为/usr/local/include
和/usr/local/lib
,因为默认情况下,Xcode不会搜索这些路径。
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