# Osx Lion header issues in 2.7.3

**URL:** <https://discourse.glfw.org/t/osx-lion-header-issues-in-2-7-3/249>\
**Category:** support\
**Created:** [February 14, 2012, 3:37pm UTC](https://discourse.glfw.org/t/osx-lion-header-issues-in-2-7-3/249 "2012-02-14T15:37:09Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![system](https://canada1.discourse-cdn.com/flex035/uploads/glfw/original/1X/b8cdefe6b61b8d5aee6c43b2c56e9cf5eabecfe4.svg) [@system](https://discourse.glfw.org/u/system)\
**Post date:** [February 14, 2012, 3:37pm UTC](https://discourse.glfw.org/t/osx-lion-header-issues-in-2-7-3/249/1 "2012-02-14T15:37:09Z")

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**[mchung123](https://sourceforge.net/u/mchung123/)** wrote on [Tuesday, February 14, 2012](https://sourceforge.net/p/glfw/discussion/247562/thread/d2fc85c4/#63dd):

Hey guys I have been having trouble with glfw, I am on osx lion 2.7.3 mbp late  
2011 with ATI card  
I got the library static library to link and I have gotten 2.1 to work on osx  
lion, I have tried core profile and it doesn’t seem to be working warning is  
that glbindVertexArray has not be declared, when I switch to 2.6.3, it asks me  
glbindVertexArray has not been declared do you mean glbindVertexArrayAPPLE ?  
anyways heres the piece of code I used to test if this is working.

[https://gist.github.com/1401335](https://gist.github.com/1401335)

can anyone help me out I have been at this for 4 days and no fruit thanks =)

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**Author:** ![system](https://canada1.discourse-cdn.com/flex035/uploads/glfw/original/1X/b8cdefe6b61b8d5aee6c43b2c56e9cf5eabecfe4.svg) [@system](https://discourse.glfw.org/u/system)\
**Post date:** [February 14, 2012, 6:08pm UTC](https://discourse.glfw.org/t/osx-lion-header-issues-in-2-7-3/249/2 "2012-02-14T18:08:27Z")

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**[mchung123](https://sourceforge.net/u/mchung123/)** wrote on [Tuesday, February 14, 2012](https://sourceforge.net/p/glfw/discussion/247562/thread/d2fc85c4/#0e9e):

anyone ?

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<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex035/uploads/glfw/original/1X/b8cdefe6b61b8d5aee6c43b2c56e9cf5eabecfe4.svg) [@system](https://discourse.glfw.org/u/system)\
**Post date:** [February 14, 2012, 8:48pm UTC](https://discourse.glfw.org/t/osx-lion-header-issues-in-2-7-3/249/3 "2012-02-14T20:48:39Z")

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**[mchung123](https://sourceforge.net/u/mchung123/)** wrote on [Tuesday, February 14, 2012](https://sourceforge.net/p/glfw/discussion/247562/thread/d2fc85c4/#4ac1):

???

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<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex035/uploads/glfw/original/1X/b8cdefe6b61b8d5aee6c43b2c56e9cf5eabecfe4.svg) [@system](https://discourse.glfw.org/u/system)\
**Post date:** [February 14, 2012, 9:02pm UTC](https://discourse.glfw.org/t/osx-lion-header-issues-in-2-7-3/249/4 "2012-02-14T21:02:17Z")

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**[elmindreda](https://sourceforge.net/u/elmindreda/)** wrote on [Tuesday, February 14, 2012](https://sourceforge.net/p/glfw/discussion/247562/thread/d2fc85c4/#188c):

This is an Open Source project. Everything is done by volunteers donating  
their spare time, for free. Please try to keep this in mind.

You are using glBindVertexArray, which was added in OpenGL 3.0, without  
declaring it first. The gl.h header on Mac OS X does not declare anything  
above OpenGL 2.1.

If you don’t plan on building on anything except OS X Lion, you can use the  
GLFW\_INCLUDE\_GL3 macro added in the most recent release. Otherwise, an  
extension loading library is recommended.