Re: gl_extensions compile error

On 2012-04-19 20:47:24 +0000, Bruce Sherwood said:

> I've not seen this in building for the Mac starting from a python.org
> distribution of Python. Line 50 in src/core/util/gl_extensions.cpp
> doesn't look much like the error that's reported, which is puzzling.
> 
> You mention "boost_source", which I don't understand. The
> "dependencies" folder should contain the following:
> 
> threadpool folder
> boost_files folder, containing
>    boost folder of Boost library includes

Aha! That's how. I believe that this is missing from the MAC-OSX.txt 
build instructions.
I now removed my added boost_source include, added a

ln -s /Users/maye/Dropbox/src/boost_1_49_0/boost

into dependencies/boost_files and it works as before, compiling fine 
until the gl_extensions problem.

If you want, I can add this info to MAC-OSX.txt and send you a git pull 
request from my fork? Maybe a good time to practice those github 
collaboration features, as I understand that visual only recently got 
there? ;)

I agree that line 50 does not look like it at all:

	if ( EXT_texture3D = d.hasExtension( "GL_EXT_texture3D" ) ) {
		F( glTexImage3D );
		F( glTexSubImage3D );
	} else {
		#ifdef __APPLE__
			// Supported natively but NOT as an extension
			EXT_texture3D = true;
50 -->		glTexImage3D = ::glTexImage3D;
			glTexSubImage3D = ::glTexSubImage3D;
		#endif
	}


but maybe this ifdef __APPLE__ has something to do with it?


Michael


>    mac_libs folder containing
>       libboost_python.a
>       libboost_signals.a
>       libboost_thread.a
> 
> Bruce Sherwood
> 
> On Thu, Apr 19, 2012 at 2:18 PM, K.-Michael Aye <[email protected]> wrote:
>> Okay, some steps further in my endavour to build visual for EPD, I am
>> now using the standard makefile for MacOS, but had to add the
>> boost_source folder for including the boost header files (maybe i
>> messed something up at compile time there, let's see).
>> 
>> But currently I am blocked by not compiling gl_extensions:
>> 
>> g++ -fPIC -MMD -DNDEBUG -mmacosx-version-min=10.5 -arch i386 -DPIC -O2
>> -g -finline-functions -I../boost_1_49_0 -I../visual/include/mac
>> -I../visual/include
>> -I/Library/Frameworks/Python.framework/Versions/Current/include/python2.7
>> -I/Library/Frameworks/Python.framework/Versions/Current/lib/python2.7/site-packages/numpy/core/include 
>> 
>> -I../visual/dependencies/boost_files
>> -I../visual/dependencies/threadpool/include
>> -F/System/Library/Frameworks/AGL.framework
>> -F/System/Library/Frameworks/Carbon.framework
>> -F/System/Library/Frameworks/OpenGL.framework   -c -o gl_extensions.o
>> ../visual/src/core/util/gl_extensions.cpp
>> ../visual/src/core/util/gl_extensions.cpp: In member function ‘void
>> cvisual::gl_extensions::init(cvisual::display_kernel&)’:
>> ../visual/src/core/util/gl_extensions.cpp:50: error: invalid conversion
>> from ‘void (*)(GLenum, GLint, GLint, GLsizei, GLsizei, GLsizei, GLint,
>> GLenum, GLenum, const GLvoid*)’ to ‘void (*)(GLenum, GLint, GLenum,
>> GLsizei, GLsizei, GLsizei, GLint, GLenum, GLenum, const GLvoid*)’
>> make: *** [gl_extensions.o] Error 1
>> 
>> 
>> Has anybody ever seen such an error and remembers what was wrong?
>> 
>> TIA,
>> Michael
>> 
>> 
>> 
>> 
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