updates from Vik
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LynxOS Notes
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------------
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Mesa 3.0 for LynxOS builds in the following way:
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The LynxOS make instructions are really a copy of the Linux make with
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the addition of a -lbsd flag for the networking. Everything else seems
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to work fine. Just go to the root directory and type "make lynxos" and
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the whole mess builds and works without any problems.
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make lynxos
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There is an important note though: Since we don't have shared C libraries yet,
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this distribution of Mesa becomes quite fat. Around 7 megs of source becomes
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145 Megs of executable. Most of this is in the demo code, but you should
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be aware of the total disk space being used. When we add shared C libraries, I
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will attempt to build this distribution with shared libraries to conserve
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space.
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This will build all the libraries and demo applications. You should have
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around 400 megabytes free for everything since everything is done with
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static
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libraries.
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Before using this make file however, you should perform the following
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actions:
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0) cd to the Mesa-3.0 directory
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1) Copy the GL directory under the include directory to /usr/include.
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2) Copy the files in the lib directory to /lib.
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3) Make links so that the Mesa libraries look like ordinary OpenGL
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libraries
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in /lib. This is important for compatibility with other OpenGL apps. This
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is done as follows:
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cd /lib
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ln -s libMesaGL.a libGL.a
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ln -s libMesaGLU.a libGLU.a
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Mesa 3.0 includes the GLUT (GL Utility Toolkit) by default.
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The demo applications are done using this toolkit.
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Mesa makefiles for building their apps could be used as well, but the
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following one is much more concise. Note that the order of the X libraries
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is important to the linker so that all symbols get resolved correctly.
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Changing the order may result in having to list a library twice to make
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sure all linkages are made correctly.
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----cut here for Makefile -----
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FILES = your_app.x
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SPECIAL_INCLUDES = -I/usr/include/GL
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SPECIAL_CFLAGS = -g -ansi -pedantic -funroll-loops -ffast-math -DSHM
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SPECIAL_LIBS = -lglut -lGLU -lGL -lm -L/usr/X11/lib -lXext -lXmu -lXi \
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-lX11 -lbsd -g
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STANDARD_OFILES = $(FILES:.x=.o)
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%.o: %.c
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gcc -c $(SPECIAL_CFLAGS) $(SPECIAL_INCLUDES) $< -o $@
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all: $(STANDARD_OFILES)
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gcc -o your_app $(STANDARD_OFILES) $(SPECIAL_LIBS)
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----cut here for Makefile-----
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I have tested Mesa under LynxOS 3.0 and 3.01. It should build fine under
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other
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versions as well. Note, however, that LynxOS versions prior to 3.0 are not
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binary compatible, so you will have to rebuild from source.
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This build was done under LynxOS 2.5G (an internal release). It should build
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under 2.4 and 2.5 final. If you have problems, please email me at vik@lynx.com
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Vik Sohal
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vik@lynx.com
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April 2nd, 1997
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January 13, 1999
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