xcode <png.h> 在 mac os X Mavericks 中找不到
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<png.h> not found in mac os X mavericks
提问by lucarc
I tried (apparently successfully) to install libpngon mac os x mavericks.
我尝试（显然成功）libpng在 mac os x Mavericks 上安装。
I downloaded the latest 1-6-8 version .tar.xzand followed the instructions.
我下载了最新的 1-6-8 版本.tar.xz并按照说明操作。
./configureruns fine
./configure运行良好
make checkpasses everything but png-error that gets skipped
make check通过除了被跳过的 png-error 之外的所有内容
sudo make installapparently works fine since my library libpng. appears.
sudo make install显然工作正常，因为我的库 libpng。出现。
Now, when i try to compile the C file that i need to compile, using the string
现在，当我尝试编译我需要编译的 C 文件时，使用字符串
clang -w -lz -lpng16 libpng_test.c
clang -w -lz -lpng16 libpng_test.c
i get the error
我得到了错误
fatal error: 'png.h' file not found
fatal error: 'png.h' file not found
#include <png.h>
#include <png.h>
and obviously it does not compile.
显然它不能编译。
I tried installing both with homebrew and macports and it always seems to run fine, but i always get the same error
我尝试使用自制软件和 macports 安装，它似乎总是运行良好，但我总是遇到相同的错误
回答by Pedro Scarapicchia Junior
First you have to find where the png.h file is located
首先你要找到png.h文件所在的位置
sudo find / -name png.h
Here in my environment it is located at /usr/local/include
在我的环境中，它位于/usr/local/include
Then look for libpng.a
然后寻找libpng.a
sudo find / -name libpng.a
Here in my environment it is located at /usr/local/lib
在我的环境中，它位于/usr/local/lib
Now add those directories to the clang command line:
现在将这些目录添加到 clang 命令行：
clang -I/usr/local/include -L/usr/local/lib -w -lz -lpng16 libpng_test.c
