Messages

1

General / Included new GLEW links agains the older GLEW from SFML :(

« on: October 27, 2010, 04:36:38 pm »

To Laurent:

Thanks a million for pointing out the GLEW macro. I completely missed that out. Now, configuration (a) and (c) works, but the result of (c) is the same as (d) in which the program crashes upon exit.

To panithadrum:

ATI bug? Do you mind sharing the detail of the bug (maybe a link to the bug information)? It sounds important.

2

General / Included new GLEW links agains the older GLEW from SFML :(

« on: October 25, 2010, 12:04:55 pm »

Thanks again, Osbios. Based on your suggestion, I tried several configurations and found the following surprising results:

(a) Static GLEW (glew32s.lib) and Static SFML libraries
     Result: ERROR - undefined reference to glewInit

(b) Dynamic GLEW (glew32.lib) and Static SFML libraries
     Result: ERROR - multiple definition error for glewInit, first defined in glew32.lib (glew32.lib comes first in the linker option)

(c) Static GLEW (glew32s.lib) and Dynamic SFML libraries
     Result: ERROR - undefined reference to glewInit

(d) Dynamic GLEW (glew32.lib) and Dynamic SFML libraries
     Result: WORKS!! BUT upon exit, the program crashes.

In terms of using GLEW with SFML, configuration (d) works fine for me so far. The reason why the program crashes seems to be because of mixing SFML drawing (such as Text) with OpenGL. I found this out when I compile the OpenGL sample that comes together with SFML 1.5. I don't know whether this happens to others or this problem has been solved in the newer versions. Any idea why?

3

General / Included new GLEW links agains the older GLEW from SFML :(

« on: October 23, 2010, 06:19:30 am »

Hi, Osbios. Thanks for your quick reply.

I am using MinGW compiler and Code::Blocks IDE.

I have changed the linking order of libsfml-graphics-s.a and my newer glew, but the multiple redefinition error for glewInit() function still popped out. This time it stated that the glewInit() is first defined in glew32.lib instead. I am showing the full command line of my compilation if that helps. The linker error message is hightlighted in blue.

mingw32-g++.exe -LH:\MinGW\lib -LH:\Library\SFML\SFML-1.5\lib -LH:\Library\SFML\SFML-1.5\extlibs  -o bin\Release\MasterBase.exe obj\Release\Application.o obj\Release\Axes.o obj\Release\Box.o obj\Release\BruteForceTerrain.o obj\Release\FpsCamera.o obj\Release\FreeCamera.o obj\Release\Grid.o obj\Release\PolygonModel.o obj\Release\Terrain.o obj\Release\main.o   -s  H:\MinGW\lib\DevIL.lib H:\MinGW\lib\glew32.lib H:\Library\SFML\SFML-1.5\lib\libsfml-main.a H:\Library\SFML\SFML-1.5\lib\libsfml-graphics-s.a H:\Library\SFML\SFML-1.5\lib\libsfml-window-s.a H:\Library\SFML\SFML-1.5\lib\libsfml-system-s.a -lglu32 -lopengl32
H:\Library\SFML\SFML-1.5\lib\libsfml-graphics-s.a(glew.o):glew.c:(.text+0xc560): multiple definition of `glewInit'
H:\MinGW\lib\glew32.lib(d001590.o).text+0x0): first defined here

4

General / Included new GLEW links agains the older GLEW from SFML :(

« on: October 22, 2010, 11:28:32 am »

Hi, noob's passing by. I'm also having problems using the newer glew library with SFML that I do not know how to solve.

At first, I tried to link the newer glew library file to my project, but it gives multiple definition error for the glewInit() function as shown below:

G:\MinGW\lib\glew32.lib(d001590.o): multiple definition of `glewInit'
G:\Library\SFML-1.5\lib\libsfml-graphics-s.a(glew.o):glew.c:(.text+0xc560): first defined here

Then I remove the new glew library from the linker option to use the old glew library from SFML (should be the one in libsfml-graphics-s.a), but surprisingly the following linker errors pop out:

obj\Release\Application.o:Application.cpp:(.text+0x3fe): undefined reference to `_imp__glewInit'
obj\Release\Box.o:Box.cpp:(.text+0x2a8): undefined reference to `_imp____glewDrawRangeElements'
obj\Release\Box.o:Box.cpp:(.text+0x2f3): undefined reference to `_imp____glewDrawRangeElements'

I'm sure that my graphics card supports glDrawRangeElements function. I have read some threads in this forum about glew before posting and it seems possible to use newer glew with SFML, but I don't quite understand the solutions posted and I somehow couldn't get it right. Anyone knows what I have missed out?

I'm using SFML 1.5 btw. Thanks in advance for any help.