From: Ian Romanick <[email protected]>

There are no binary formats supported, so what are you doing?  At least
this gives the application developer some feedback about what's going
on.  The spec gives no guidance about what to do in this scenario.

Signed-off-by: Ian Romanick <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=87516
---
 src/mesa/main/shaderapi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
index c7e2633..92cafdc 100644
--- a/src/mesa/main/shaderapi.c
+++ b/src/mesa/main/shaderapi.c
@@ -1719,6 +1719,8 @@ _mesa_GetProgramBinary(GLuint program, GLsizei bufSize, 
GLsizei *length,
    }
 
    *length = 0;
+   _mesa_error(ctx, GL_INVALID_OPERATION,
+               "glGetProgramBinary(driver supports zero binary formats)");
 
    (void) binaryFormat;
    (void) binary;
-- 
1.8.1.4

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