GLFW

Renaming.

Logged In: NO

I've already send Marcus information how to remove this bug, but I'll post
it
here too.

Every application using GLFW exits with such a message when trying
create a window:
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 42 (X_SetInputFocus)
Serial number of failed request: 27
Current serial number in output stream: 30

It is caused because window isn't viewable during call to
XSetInputFocus(). There are two workarounds that I know:
1. Remove any call to XSetInputFocus() (e.g. by commenting them out).
2. Make sure that window is viewable before calling XSetInputFocus().
It can be done for example by repeating calls to XGrabKeyboard() until
result will be different than BadWindow.

Simplifying things just remove lines containing XSetInputFocus in
lib/x11/
x11_window.c and everyting should be OK.

Logged In: NO

After hacking at the glfw x11 source code, I found that the
error is caused when X window is still unviewable after the
call to XMapWindow on line 937 of x11_window.c.
From the X reference documentation: "The specified focus
window must be viewable at the time XSetInputFocus is
called, or a BadMatch error results. "

The error is no longer reported if the following changes are
made to x11_window.c:
In the function _glfwWaitForMapNotify, replace the MapNotify
event with an Expose event.

However, I'd like someone who is comfortable with the glfw
source code, and X to assert that this is indeed the correct
'fix'.

Logged In: NO

After some more debugging, I've found that the error is
instantiated in the call to glXMakeCurrent() in
lib/x11/x11_window.c line 989. That is where the application
exits.

Logged In: NO

If it is of any significance, here is the config.log from
building glfw:

---- config.log -----
This file contains any messages produced by compilers while
running ./compile.sh, to aid debugging if ./compile.sh makes
a mistake.

./compile.sh: checking whether we are using GNU C
./compile.sh: gcc -E conftest.c
./compile.sh: Checking for XFree86 VidMode support
./compile.sh: gcc -c -I/usr/X11R6/include conftest.c 1>&5
./compile.sh: Checking for pthread support
./compile.sh: gcc -o conftest -I/usr/X11R6/include
-D_GLFW_HAS_XF86VIDMODE -L/usr/X11R6/lib conftest.c -lGL
-lX11 -lXxf86vm -lXext -lpthread 1>&5
./compile.sh: Checking for glXGetProcAddress support
./compile.sh: gcc -o conftest -I/usr/X11R6/include
-D_GLFW_HAS_XF86VIDMODE -D_GLFW_HAS_PTHREAD
-L/usr/X11R6/lib conftest.c -lGL -lX11 -lXxf86vm -lXext
-lpthread 1>&5
./compile.sh: gcc -o conftest -I/usr/X11R6/include
-D_GLFW_HAS_XF86VIDMODE -D_GLFW_HAS_PTHREAD
-L/usr/X11R6/lib conftest.c -lGL -lX11 -lXxf86vm -lXext
-lpthread 1>&5
./compile.sh: gcc -o conftest -I/usr/X11R6/include
-D_GLFW_HAS_XF86VIDMODE -D_GLFW_HAS_PTHREAD
-L/usr/X11R6/lib conftest.c -lGL -lX11 -lXxf86vm -lXext
-lpthread 1>&5
/tmp/ccYY7K3Q.o(.text+0x25): In function `main':
: undefined reference to `glXGetProcAddressEXT'
collect2: ld returned 1 exit status
./compile.sh: failed program was:
#include <X11/Xlib.h>
#include <GL/glx.h>
#include <GL/gl.h>
int main() {void *ptr=(void*)glXGetProcAddressEXT("glFun");
return 0;}
./compile.sh: Checking for dlopen support
./compile.sh: gcc -o conftest -I/usr/X11R6/include
-D_GLFW_HAS_XF86VIDMODE -D_GLFW_HAS_PTHREAD
-D_GLFW_HAS_GLXGETPROCADDRESS
-D_GLFW_HAS_GLXGETPROCADDRESSARB -L/usr/X11R6/lib
conftest.c -lGL -lX11 -lXxf86vm -lXext -lpthread 1>&5
./compile.sh: Checking for sysconf support
./compile.sh: gcc -o conftest -I/usr/X11R6/include
-D_GLFW_HAS_XF86VIDMODE -D_GLFW_HAS_PTHREAD
-D_GLFW_HAS_GLXGETPROCADDRESS
-D_GLFW_HAS_GLXGETPROCADDRESSARB -D_GLFW_HAS_DLOPEN
-L/usr/X11R6/lib conftest.c -lGL -lX11 -lXxf86vm -lXext
-lpthread 1>&5
./compile.sh: Checking for sysctl support
./compile.sh: gcc -E conftest.c
./compile.sh: Creating ./lib/x11/Makefile.x11.gcc...
./compile.sh: Creating ./examples/Makefile.x11.gcc...