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gl: check if we can include both GL and GLES2 headers at the same time

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If we cannot, then default to GL over GLES2 unless GLES2 is required.
This commit is contained in:
Matthew Waters 2014-05-05 20:06:29 +10:00
parent 0ce2b0632e
commit dca6e5e039
1 changed files with 36 additions and 0 deletions
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36
configure.ac
View file

@ -812,6 +812,42 @@ else
fi
fi
dnl check if we can include both GL and GLES2 at the same time
if test "x$HAVE_GL" = "xyes" -a "x$HAVE_GLES2" = "xyes"; then
GL_INCLUDES="
# include <GLES2/gl2.h>
# include <GLES2/gl2ext.h>
# if __APPLE__
# include <OpenGL/OpenGL.h>
# include <OpenGL/gl.h>
# else
# include <GL/glu.h>
# include <GL/gl.h>
# if __WIN32__ || _WIN32
# include <GL/glext.h>
# endif
# endif
"
AC_MSG_CHECKING([whether it is possible to include both GL and GLES2 headers])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$GL_INCLUDES]], [[
#if !defined(GL_FALSE)
#error Failed to include GL headers
#endif
]])],[ AC_MSG_RESULT(yes)
],[AC_MSG_RESULT(no)
if test "x$NEED_GLES2" = "xyes"; then
if test "x$NEED_OPENGL" = "xyes"; then
AC_MSG_ERROR([Cannot seem to include both GL and GLES2 headers. Try disabling one API])
fi
AC_MSG_WARN([Disabling Desktop GL support])
HAVE_OPENGL=no
else
AC_MSG_WARN([Disabling GL|ES 2.0 support])
HAVE_GLES2=no
fi
])
fi
#dnl Check for OpenGL, GLU
echo host is $host
case $host in