• steve (68/68) Jan 24 2009 Hello the opengl\windows sample "gengl" compiles but it wont link
• Walter Bright (9/19) Jan 24 2009 The symbol _wglDeleteContext@4 is not found by the linker. So where is

steve <stewilled msn.com> writes:

Hello the opengl\windows sample "gengl" compiles but it wont link
and comes up with errors like

sc gengl.c -mn -C -WA -S -3 -a8 -c -w- -w2 -g -I. -o.\gengl.obj
sc render.c -mn -C -WA -S -3 -a8 -c -w- -w2 -g -I. -o.\render.obj
rcc -32 -I. -o.\gengl.res gengl.rc
link /CO /DE /PACKF /XN /NT /ENTRY:WinMainCRTStartup /VERS:1.0 /BAS:
1048576 /A:512 /RC   :.\gengl.RES  GENGL.LNK
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\gengl.OBJ
(gengl)  (18868632): Symbol Undefined _wglDeleteContext 4
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\gengl.OBJ
(gengl)  : Symbol Undefined _wglMakeCurrent 8
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\gengl.OBJ
(gengl)  : Symbol Undefined _wglGetCurrentDC 0
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\gengl.OBJ
(gengl)  (1296632): Symbol Undefined _wglGetCurrentContext 0
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\gengl.OBJ
(gengl)  (1296636): Symbol Undefined _wglCreateContext 4
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  : Symbol Undefined _glPopMatrix 0
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  : Symbol Undefined _glEnd 0
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296640): Symbol Undefined _glVertex3f 12
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296640): Symbol Undefined _glColor3f 12
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  : Symbol Undefined _glBegin 4
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296636): Symbol Undefined _glTranslatef 12
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296636): Symbol Undefined _glPushMatrix 0
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296632): Symbol Undefined _gluDeleteQuadric 4
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296636): Symbol Undefined _gluCylinder 36
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296632): Symbol Undefined _gluQuadricNormals 8
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296632): Symbol Undefined _gluQuadricDrawStyle 8
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296636): Symbol Undefined _gluNewQuadric 0
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  : Symbol Undefined _glViewport 16
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  : Symbol Undefined _glFinish 0
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  : Symbol Undefined _glClear 4
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296636): Symbol Undefined _glMatrixMode 4
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296636): Symbol Undefined _gluPerspective 32
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296640): Symbol Undefined _glEnable 4
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296636): Symbol Undefined _glClearDepth 8
Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\render.OBJ
(render)  (1296636): Symbol Undefined _glClearColor 16
Lines Processed: 251650  Errors: 25  Warnings: 0
Build failed

which is the same for mine ... im kind of a newbie but ive always
been able to have successful builds in other compilers and I
purchased the cd version of dmc.... very frustrating... any
comments or suggestions would be appreciated.

Thanks

== Repost the article of steve (stewilled msn.com)
== Posted at 2009/01/23 22:19 to c++

Does anyone know how to get opengl\windows source to compile. Any
advice would be welcomed.Thanks

Walter Bright <newshound1 digitalmars.com> writes:

steve wrote:
 Hello the opengl\windows sample "gengl" compiles but it wont link
 and comes up with errors like
 
 sc gengl.c -mn -C -WA -S -3 -a8 -c -w- -w2 -g -I. -o.\gengl.obj
 sc render.c -mn -C -WA -S -3 -a8 -c -w- -w2 -g -I. -o.\render.obj
 rcc -32 -I. -o.\gengl.res gengl.rc
 link /CO /DE /PACKF /XN /NT /ENTRY:WinMainCRTStartup /VERS:1.0 /BAS:
 1048576 /A:512 /RC   :.\gengl.RES  GENGL.LNK
 Error: I:\dmc\dm\samples\WIN32\OPENGL\DEMOS\GENGL\.\gengl.OBJ
 (gengl)  (18868632): Symbol Undefined _wglDeleteContext 4

The symbol _wglDeleteContext 4 is not found by the linker. So where is 
it? The easiest way to find it is to use grep:

cd \dm\lib
grep _wglDeleteContext 4 *.lib
GLAUX.LIB:.__imp__wglDeleteContext 4
OPENGL32.LIB:._wglDeleteContext 4.OPENGL32.wglDeleteContext
OPENGL32.LIB:_glVertex2f 8..._wglDeleteContext 4t.._wglRealizeLayerPalette 12..

Looks like it's in \dm\lib\opengl32.lib, so add that to your link command.