是否可以在Mac OS X上构建FreeGLUT？
我在做some tutorials on OpenGL，使用FreeGLUT。是否可以在Mac OS X上构建FreeGLUT？
Apparently这是你如何建立并在Mac上安装它：
CPPFLAGS="-I/usr/X11R6/include" ./configure --prefix="${PWD}/../"
make
make install
可惜这对自己给了我一个错误，当我做make命令：Undefined symbols for architecture x86_64
做工作升技后我发现第一行的改进是：
CPPFLAGS="-I/usr/X11R6/include -L/usr/X11R6/lib" LDFLAGS="-L/usr/X11R6/lib" ./configure --prefix="${PWD}/../"
不幸的是，当我做make命令我仍然得到一个错误：
gcc -DHAVE_CONFIG_H -I. -I../../.. -I/usr/X11R6/include -L/usr/X11R6/lib -I../../../include -g -O2 -Wall -pedantic -MT smooth_opengl3-smooth_opengl3.o -MD -MP -MF .deps/smooth_opengl3-smooth_opengl3.Tpo -c -o smooth_opengl3-smooth_opengl3.o `test -f 'smooth_opengl3.c' || echo './'`smooth_opengl3.c
smooth_opengl3.c:101: error: redefinition of typedef ‘PFNGLGENBUFFERSPROC’
/usr/X11R6/include/GL/glext.h:5080: error: previous declaration of ‘PFNGLGENBUFFERSPROC’ was here
smooth_opengl3.c:102: error: redefinition of typedef ‘PFNGLBINDBUFFERPROC’
/usr/X11R6/include/GL/glext.h:5078: error: previous declaration of ‘PFNGLBINDBUFFERPROC’ was here
smooth_opengl3.c:103: error: redefinition of typedef ‘PFNGLBUFFERDATAPROC’
/usr/X11R6/include/GL/glext.h:5082: error: previous declaration of ‘PFNGLBUFFERDATAPROC’ was here
smooth_opengl3.c:104: error: redefinition of typedef ‘PFNGLCREATESHADERPROC’
/usr/X11R6/include/GL/glext.h:5197: error: previous declaration of ‘PFNGLCREATESHADERPROC’ was here
smooth_opengl3.c:105: error: redefinition of typedef ‘PFNGLSHADERSOURCEPROC’
/usr/X11R6/include/GL/glext.h:5222: error: previous declaration of ‘PFNGLSHADERSOURCEPROC’ was here
smooth_opengl3.c:106: error: redefinition of typedef ‘PFNGLCOMPILESHADERPROC’
/usr/X11R6/include/GL/glext.h:5195: error: previous declaration of ‘PFNGLCOMPILESHADERPROC’ was here
smooth_opengl3.c:107: error: redefinition of typedef ‘PFNGLCREATEPROGRAMPROC’
/usr/X11R6/include/GL/glext.h:5196: error: previous declaration of ‘PFNGLCREATEPROGRAMPROC’ was here
smooth_opengl3.c:108: error: redefinition of typedef ‘PFNGLATTACHSHADERPROC’
/usr/X11R6/include/GL/glext.h:5193: error: previous declaration of ‘PFNGLATTACHSHADERPROC’ was here
smooth_opengl3.c:109: error: redefinition of typedef ‘PFNGLLINKPROGRAMPROC’
/usr/X11R6/include/GL/glext.h:5221: error: previous declaration of ‘PFNGLLINKPROGRAMPROC’ was here
smooth_opengl3.c:110: error: redefinition of typedef ‘PFNGLUSEPROGRAMPROC’
/usr/X11R6/include/GL/glext.h:5223: error: previous declaration of ‘PFNGLUSEPROGRAMPROC’ was here
smooth_opengl3.c:111: error: redefinition of typedef ‘PFNGLGETSHADERIVPROC’
/usr/X11R6/include/GL/glext.h:5209: error: previous declaration of ‘PFNGLGETSHADERIVPROC’ was here
smooth_opengl3.c:112: error: redefinition of typedef ‘PFNGLGETSHADERINFOLOGPROC’
/usr/X11R6/include/GL/glext.h:5210: error: previous declaration of ‘PFNGLGETSHADERINFOLOGPROC’ was here
smooth_opengl3.c:113: error: redefinition of typedef ‘PFNGLGETPROGRAMIVPROC’
/usr/X11R6/include/GL/glext.h:5207: error: previous declaration of ‘PFNGLGETPROGRAMIVPROC’ was here
smooth_opengl3.c:114: error: redefinition of typedef ‘PFNGLGETPROGRAMINFOLOGPROC’
/usr/X11R6/include/GL/glext.h:5208: error: previous declaration of ‘PFNGLGETPROGRAMINFOLOGPROC’ was here
smooth_opengl3.c:115: error: redefinition of typedef ‘PFNGLGETATTRIBLOCATIONPROC’
/usr/X11R6/include/GL/glext.h:5206: error: previous declaration of ‘PFNGLGETATTRIBLOCATIONPROC’ was here
smooth_opengl3.c:116: error: redefinition of typedef ‘PFNGLVERTEXATTRIBPOINTERPROC’
/usr/X11R6/include/GL/glext.h:5280: error: previous declaration of ‘PFNGLVERTEXATTRIBPOINTERPROC’ was here
smooth_opengl3.c:117: error: redefinition of typedef ‘PFNGLENABLEVERTEXATTRIBARRAYPROC’
/usr/X11R6/include/GL/glext.h:5202: error: previous declaration of ‘PFNGLENABLEVERTEXATTRIBARRAYPROC’ was here
smooth_opengl3.c:118: error: redefinition of typedef ‘PFNGLGETUNIFORMLOCATIONPROC’
/usr/X11R6/include/GL/glext.h:5212: error: previous declaration of ‘PFNGLGETUNIFORMLOCATIONPROC’ was here
smooth_opengl3.c:119: error: redefinition of typedef ‘PFNGLUNIFORMMATRIX4FVPROC’
/usr/X11R6/include/GL/glext.h:5242: error: previous declaration of ‘PFNGLUNIFORMMATRIX4FVPROC’ was here
make[4]: *** [smooth_opengl3-smooth_opengl3.o] Error 1
make[3]: *** [all-recursive] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2
这一直是documented on the net before，但解决的办法是不是真的在这种情况下是有帮助的。我也尝试将它换成OS X附带的GLUT.framwork，但是这些示例使用FreeGLUT特定的函数。
XQuartz 2.7.2交换到FreeGLUT（2.8.0），而不是老MesaGLUT。因此，如果您拥有OS X 10.6.3或更高版本，则只需安装XQuartz 2.7.2或更高版本即可。请参阅：
对于那些想知道如何在XCode中设置freeglut的人，请参阅http://lazyfoo.net/tutorials/OpenGL/01_hello_opengl/mac/xcode/index.php – zhangyoufu 2014-10-22 11:47:01
It was suggested在Xquartz的邮件列表中，声明freeglut演示是错误的声明那些PFN * PROC两次。
因此，通过简单地注释掉smooth_opengl3.c中的那些双重定义，空闲的过剩将通过编译阶段。但是，从我的经验来看，它不会运行，并给出GLSL的一些错误。
也有人认为GLUT framework should be used在Mac OS X
不幸的是，OSX的GLUT框架不支持OpenGL 3.2。 – 2012-08-25 21:53:46
It's我正与以下参数配置：
./configure CFLAGS="-I/usr/X11/include/X11/extensions -L/usr/X11/lib" LIBS="-lXrandr -lXxf86vm -lXi" --with-x --x-includes=/usr/X11/include
好吧，我已经在这个有远一点。使用'CPPFLAGS =“ - I/usr/X11R6/include -L/usr/X11R6/lib”./configure --prefix =“$ {PWD} /../”'摆脱'Undefined symbols'错误。但是现在我得到'ld：library没找到-lGL' \'collect2：ld返回1退出状态'''make [2]：*** [libglut.la]错误1''make [1]：* ** [all-recursive]错误1' /'make：*** [all]错误2' – bjz 2012-02-06 03:39:28
也许你还应该检查LDFLAGS，需要'-L/usr/X11R6/lib'。 – ZhangChn 2012-02-06 05:37:48
噢，谢谢。好的，我用'CPPFLAGS =“ - I/usr/X11R6/include -L/usr/X11R6/lib”LDFLAGS =“ - L/usr/X11R6/lib”./configure --prefix =“$ {PWD}/../“'，我摆脱了以前的错误。现在我得到了一个错误：'smooth_opengl3.c：101：error：重新定义typedef'PFNGLGENBUFFERSPROC'' /usr/X11R6/include/GL/glext.h:5080：错误：以前的声明'PFNGLGENBUFFERSPROC'在这里' – bjz 2012-02-06 07:08:24