< png.h>在Mac OS X特立独行者中找不到

问题描述

我尝试(显然成功)在Mac OS X小牛上安装了libpng.

I tried (apparently successfully) to install libpng on mac os x mavericks.

我下载了最新的1-6-8版本.tar.xz，并按照说明进行操作.

I downloaded the latest 1-6-8 version .tar.xz and followed the instructions.

./configure运行正常

make check传递除png错误之外的所有错误

make check passes everything but png-error that gets skipped

sudo make install显然可以正常工作.出现.

sudo make install apparently works fine since my library libpng. appears.

现在，当我尝试使用字符串

Now, when i try to compile the C file that i need to compile, using the string

clang -w -lz -lpng16 libpng_test.c

我得到了错误

fatal error: 'png.h' file not found

#include <png.h>

很显然它不能编译.

我尝试同时使用homebrew和macports进行安装，但它似乎总是可以正常运行，但是我总是遇到相同的错误

I tried installing both with homebrew and macports and it always seems to run fine, but i always get the same error

推荐答案

首先，您必须找到png.h文件所在的位置

First you have to find where the png.h file is located

sudo find / -name png.h

在我的环境中，它位于/usr/local/include

Here in my environment it is located at /usr/local/include

然后寻找libpng.a

Then look for libpng.a

sudo find / -name libpng.a

在我的环境中，它位于/usr/local/lib

Here in my environment it is located at /usr/local/lib

现在将这些目录添加到clang命令行中:

Now add those directories to the clang command line:

clang -I/usr/local/include -L/usr/local/lib -w -lz -lpng16 libpng_test.c

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