我正在尝试用c ++读取jpg图像。我按照此链接libjpg的建议下载了https://www.opengl.org/wiki/Image_Libraries并安装了它。虽然当我包含库Xcode失败时，建立说＆＃39; jpeglib.h＆＃39;找不到文件
#include <jpeglib.h>
我可以在/ usr / local / include /目录中看到标题，这样我就无法理解为什么Xcode不会看到它。
操作系统和软件详细信息：
OSX 10.11（El Capitan）
Xcode 7.0.1
编辑：
find /usr/local -name \*jpeg\* -print -name \*jpg\* -print
/usr/local/bin/cjpeg
/usr/local/bin/djpeg
/usr/local/bin/jpegtran
/usr/local/Cellar/jpeg
/usr/local/Cellar/jpeg/8d/bin/cjpeg
/usr/local/Cellar/jpeg/8d/bin/djpeg
/usr/local/Cellar/jpeg/8d/bin/jpegtran
/usr/local/Cellar/jpeg/8d/include/jpeglib.h
/usr/local/Cellar/jpeg/8d/lib/libjpeg.8.dylib
/usr/local/Cellar/jpeg/8d/lib/libjpeg.a
/usr/local/Cellar/jpeg/8d/lib/libjpeg.dylib
/usr/local/Cellar/jpeg/8d/share/man/man1/cjpeg.1
/usr/local/Cellar/jpeg/8d/share/man/man1/djpeg.1
/usr/local/Cellar/jpeg/8d/share/man/man1/jpegtran.1
/usr/local/include/jpeglib.h
/usr/local/lib/libjpeg.8.dylib
/usr/local/lib/libjpeg.a
/usr/local/lib/libjpeg.dylib
/usr/local/Library/Aliases/libjpeg
/usr/local/Library/Aliases/libjpeg-turbo
/usr/local/Library/Formula/jpeg-archive.rb
/usr/local/Library/Formula/jpeg-turbo.rb
/usr/local/Library/Formula/jpeg.rb
/usr/local/Library/Formula/jpeginfo.rb
/usr/local/Library/Formula/jpegoptim.rb
/usr/local/Library/Formula/jpegrescan.rb
/usr/local/Library/Formula/mjpegtools.rb
/usr/local/Library/Formula/mozjpeg.rb
/usr/local/Library/Formula/openjpeg.rb
/usr/local/Library/Formula/recoverjpeg.rb
/usr/local/Library/LinkedKegs/jpeg
/usr/local/opt/jpeg
/usr/local/share/man/man1/cjpeg.1
/usr/local/share/man/man1/djpeg.1
/usr/local/share/man/man1/jpegtran.1
/usr/local/src/jpeg-9a
/usr/local/src/jpeg-9a/.deps/cdjpeg.Po
/usr/local/src/jpeg-9a/.deps/cjpeg.Po
/usr/local/src/jpeg-9a/.deps/djpeg.Po
/usr/local/src/jpeg-9a/.deps/jpegtran.Po
/usr/local/src/jpeg-9a/.libs/cjpeg
/usr/local/src/jpeg-9a/.libs/djpeg
/usr/local/src/jpeg-9a/.libs/jpegtran
/usr/local/src/jpeg-9a/.libs/libjpeg.9.dylib
/usr/local/src/jpeg-9a/.libs/libjpeg.a
/usr/local/src/jpeg-9a/.libs/libjpeg.dylib
/usr/local/src/jpeg-9a/.libs/libjpeg.la
/usr/local/src/jpeg-9a/.libs/libjpeg.lai
/usr/local/src/jpeg-9a/cdjpeg.c
/usr/local/src/jpeg-9a/cdjpeg.h
/usr/local/src/jpeg-9a/cdjpeg.o
/usr/local/src/jpeg-9a/cjpeg
/usr/local/src/jpeg-9a/cjpeg.1
/usr/local/src/jpeg-9a/cjpeg.c
/usr/local/src/jpeg-9a/cjpeg.o
/usr/local/src/jpeg-9a/djpeg
/usr/local/src/jpeg-9a/djpeg.1
/usr/local/src/jpeg-9a/djpeg.c
/usr/local/src/jpeg-9a/djpeg.o
/usr/local/src/jpeg-9a/jpegint.h
/usr/local/src/jpeg-9a/jpeglib.h
/usr/local/src/jpeg-9a/jpegtran
/usr/local/src/jpeg-9a/jpegtran.1
/usr/local/src/jpeg-9a/jpegtran.c
/usr/local/src/jpeg-9a/jpegtran.o
/usr/local/src/jpeg-9a/libjpeg.la
/usr/local/src/jpeg-9a/libjpeg.map
/usr/local/src/jpeg-9a/libjpeg.txt
/usr/local/src/jpeg-9a/makcjpeg.st
/usr/local/src/jpeg-9a/makdjpeg.st
/usr/local/src/jpeg-9a/makljpeg.st
/usr/local/src/jpeg-9a/maktjpeg.st
/usr/local/src/jpegsrc.v9a.tar.gz