glew and glfw headers do not go both into /usr/local/include/GL as expected

[laurolins]

After installing glew and glfw the directory /usr/local/include/GL is a symbolic
link to ../Cellar/glew/1.7.0/include/GL

llins@jupara:/usr/local/include$ ls -l | grep GL
lrwxr-xr-x   1 llins  admin    31 Jun 27 21:38 GL -> ../Cellar/glew/1.7.0/include/GL

And the glew headers are, as expected, in there:

llins@jupara:/usr/local/Cellar/glew/1.7.0/include/GL$ ls -l
total 1888
-rw-r--r--  1 llins  admin  837247 Jun 27 21:38 glew.h
-rw-r--r--  1 llins  admin   62741 Jun 27 21:38 glxew.h
-rw-r--r--  1 llins  admin   59403 Jun 27 21:38 wglew.h

The problem is that the glfw.h header in

llins@jupara:/usr/local/Cellar/glfw/2.7.5/include/GL$ ls -l
total 40
-rw-r--r--  1 llins  admin  19929 Jun 27 21:21 glfw.h

is not accessible by default when compiling programs, since
they only look at /usr/local/include/GL.

[adamv]

We may have to add include/GL to the list of folders that aren't "owned" by any one brew.

[jacknagel]

Shouldn't it be mkpath'd when two things link into it?

[jacknagel]

Without special casing, I mean.

[jacknagel]

It works as advertised here:

$ ls -ld /usr/local/include/GL
ls: /usr/local/include/GL: No such file or directory
$ brew install glew glfw
[snip]
$ ls -l /usr/local/include/GL
total 32
lrwxr-xr-x  1 jacknagel  admin  41 Jun 28 00:13 glew.h -> ../../Cellar/glew/1.7.0/include/GL/glew.h
lrwxr-xr-x  1 jacknagel  admin  41 Jun 28 00:13 glfw.h -> ../../Cellar/glfw/2.7.5/include/GL/glfw.h
lrwxr-xr-x  1 jacknagel  admin  42 Jun 28 00:13 glxew.h -> ../../Cellar/glew/1.7.0/include/GL/glxew.h
lrwxr-xr-x  1 jacknagel  admin  42 Jun 28 00:13 wglew.h -> ../../Cellar/glew/1.7.0/include/GL/wglew.h
$ ls -ld /usr/local/include/GL
drwxr-xr-x  6 jacknagel  admin  204 Jun 28 00:13 /usr/local/include/GL

[laurolins]

I tried again on my system and it is working as expected as jacknagel reported. I am not sure what happened before. My guess is that there was a permission problem on my /usr/local/* causing the problem: there were folders in my /usr/local/* from different users llins:admin and root:wheel and at some point brew doctor complained about permissions. I made everything on /usr/local/* to be owned by llins:admin. In the tests below I tried to install glew and glfw together and separate in different orders and it all worked fine. I will put a log below just to document my tests.

llins@jupara:/usr/local/include$ brew uninstall glfw glew
Uninstalling /usr/local/Cellar/glfw/2.7.5...
Uninstalling /usr/local/Cellar/glew/1.7.0...
llins@jupara:/usr/local/include$ ls GL
ls: GL: No such file or directory
llins@jupara:/usr/local/include$ brew install glfw glew
==> Downloading http://downloads.sourceforge.net/project/glfw/glfw/2.7.5/glfw-2.7.5.tar.bz2
Already downloaded: /Library/Caches/Homebrew/glfw-2.7.5.tar.bz2
==> make PREFIX=/usr/local/Cellar/glfw/2.7.5 cocoa-dist-install
/usr/local/Cellar/glfw/2.7.5: 6 files, 184K, built in 8 seconds
==> Downloading http://downloads.sourceforge.net/project/glew/glew/1.7.0/glew-1.7.0.tgz
Already downloaded: /Library/Caches/Homebrew/glew-1.7.0.tgz
==> make GLEW_DEST=/usr/local/Cellar/glew/1.7.0 all
==> make GLEW_DEST=/usr/local/Cellar/glew/1.7.0 install.all
/usr/local/Cellar/glew/1.7.0: 14 files, 3.5M, built in 47 seconds
llins@jupara:/usr/local/include$ ls GL
glew.h  glfw.h  glxew.h wglew.h
llins@jupara:/usr/local/include$ ls -l GL
total 32
lrwxr-xr-x  1 llins  admin  41 Jun 28 08:33 glew.h -> ../../Cellar/glew/1.7.0/include/GL/glew.h
lrwxr-xr-x  1 llins  admin  41 Jun 28 08:33 glfw.h -> ../../Cellar/glfw/2.7.5/include/GL/glfw.h
lrwxr-xr-x  1 llins  admin  42 Jun 28 08:33 glxew.h -> ../../Cellar/glew/1.7.0/include/GL/glxew.h
lrwxr-xr-x  1 llins  admin  42 Jun 28 08:33 wglew.h -> ../../Cellar/glew/1.7.0/include/GL/wglew.h
llins@jupara:/usr/local/include$ brew uninstall glew glfw
Uninstalling /usr/local/Cellar/glew/1.7.0...
Uninstalling /usr/local/Cellar/glfw/2.7.5...
llins@jupara:/usr/local/include$ brew install glfw
==> Downloading http://downloads.sourceforge.net/project/glfw/glfw/2.7.5/glfw-2.7.5.tar.bz2
Already downloaded: /Library/Caches/Homebrew/glfw-2.7.5.tar.bz2
==> make PREFIX=/usr/local/Cellar/glfw/2.7.5 cocoa-dist-install
/usr/local/Cellar/glfw/2.7.5: 6 files, 184K, built in 4 seconds
llins@jupara:/usr/local/include$ brew install glew
==> Downloading http://downloads.sourceforge.net/project/glew/glew/1.7.0/glew-1.7.0.tgz
Already downloaded: /Library/Caches/Homebrew/glew-1.7.0.tgz
==> make GLEW_DEST=/usr/local/Cellar/glew/1.7.0 all
==> make GLEW_DEST=/usr/local/Cellar/glew/1.7.0 install.all
/usr/local/Cellar/glew/1.7.0: 14 files, 3.5M, built in 46 seconds
llins@jupara:/usr/local/include$ ls GL
glew.h  glfw.h  glxew.h wglew.h
llins@jupara:/usr/local/include$ ls -l GL
total 32
lrwxr-xr-x  1 llins  admin  41 Jun 28 08:37 glew.h -> ../../Cellar/glew/1.7.0/include/GL/glew.h
lrwxr-xr-x  1 llins  admin  41 Jun 28 08:37 glfw.h -> ../../Cellar/glfw/2.7.5/include/GL/glfw.h
lrwxr-xr-x  1 llins  admin  42 Jun 28 08:37 glxew.h -> ../../Cellar/glew/1.7.0/include/GL/glxew.h
lrwxr-xr-x  1 llins  admin  42 Jun 28 08:37 wglew.h -> ../../Cellar/glew/1.7.0/include/GL/wglew.h
llins@jupara:/usr/local/include$ brew uninstall glew glfw
Uninstalling /usr/local/Cellar/glew/1.7.0...
Uninstalling /usr/local/Cellar/glfw/2.7.5...
llins@jupara:/usr/local/include$ brew install glew
==> Downloading http://downloads.sourceforge.net/project/glew/glew/1.7.0/glew-1.7.0.tgz
Already downloaded: /Library/Caches/Homebrew/glew-1.7.0.tgz
==> make GLEW_DEST=/usr/local/Cellar/glew/1.7.0 all
==> make GLEW_DEST=/usr/local/Cellar/glew/1.7.0 install.all
/usr/local/Cellar/glew/1.7.0: 14 files, 3.5M, built in 48 seconds
llins@jupara:/usr/local/include$ ls -l GL
lrwxr-xr-x  1 llins  admin  31 Jun 28 08:39 GL -> ../Cellar/glew/1.7.0/include/GL
llins@jupara:/usr/local/include$ brew install glfw
==> Downloading http://downloads.sourceforge.net/project/glfw/glfw/2.7.5/glfw-2.7.5.tar.bz2
Already downloaded: /Library/Caches/Homebrew/glfw-2.7.5.tar.bz2
==> make PREFIX=/usr/local/Cellar/glfw/2.7.5 cocoa-dist-install
/usr/local/Cellar/glfw/2.7.5: 6 files, 184K, built in 4 seconds
llins@jupara:/usr/local/include$ ls -l GL
total 32
lrwxr-xr-x  1 llins  admin  41 Jun 28 08:40 glew.h -> ../../Cellar/glew/1.7.0/include/GL/glew.h
lrwxr-xr-x  1 llins  admin  41 Jun 28 08:40 glfw.h -> ../../Cellar/glfw/2.7.5/include/GL/glfw.h
lrwxr-xr-x  1 llins  admin  42 Jun 28 08:40 glxew.h -> ../../Cellar/glew/1.7.0/include/GL/glxew.h
lrwxr-xr-x  1 llins  admin  42 Jun 28 08:40 wglew.h -> ../../Cellar/glew/1.7.0/include/GL/wglew.h
llins@jupara:/usr/local/include$ ls GL
glew.h  glfw.h  glxew.h wglew.h
llins@jupara:/usr/local/include$ brew uninstall glfw
Uninstalling /usr/local/Cellar/glfw/2.7.5...
llins@jupara:/usr/local/include$ ls -l GL
total 24
lrwxr-xr-x  1 llins  admin  41 Jun 28 08:40 glew.h -> ../../Cellar/glew/1.7.0/include/GL/glew.h
lrwxr-xr-x  1 llins  admin  42 Jun 28 08:40 glxew.h -> ../../Cellar/glew/1.7.0/include/GL/glxew.h
lrwxr-xr-x  1 llins  admin  42 Jun 28 08:40 wglew.h -> ../../Cellar/glew/1.7.0/include/GL/wglew.h
llins@jupara:/usr/local/include$ ls GL
glew.h  glxew.h wglew.h
llins@jupara:/usr/local/include$ lg -l | grep GL
-bash: lg: command not found
llins@jupara:/usr/local/include$ ls -l | grep GL
drwxr-xr-x   5 llins  admin   170 Jun 28 08:42 GL