I'm getting this build failure:
main/shader_query.cpp:49:7: error: no matching function for call to
'_mesa_lookup_shader_program_err'
_mesa_lookup_shader_program_err(ctx, program, "glBindAttribLocation");
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../src/mesa/main/shaderobj.h:81:1: note: candidate function not viable:
cannot convert argument of incomplete type 'GLhandleARB'
(aka 'void *') to 'GLuint' (aka 'unsigned int')
_mesa_lookup_shader_program_err(struct gl_context *ctx, GLuint name,
^
_mesa_lookup_shader_program_err is defined as:
extern struct gl_shader_program *
_mesa_lookup_shader_program_err(struct gl_context *ctx, GLuint name,
const char *caller);
but it is being passed a GLhandleARB rather than an GLuint by
_mesa_BindAttribLocation:
void GLAPIENTRY
_mesa_BindAttribLocation(GLhandleARB program, GLhandleARB index,
const GLcharARB *name)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_shader_program *const shProg =
_mesa_lookup_shader_program_err(ctx, program, "glBindAttribLocation");
...
This seems like an old bug that is just now coming to light. The main reason
nobody else seems to have hit this in a while is that on most platforms,
GLhandleARB and GLuint are both 'unsigned integer', so the compiler happily
goes back and forth between the two, but on darwin, GLhandleARB is a void * and
thus cannot be implicitly cast to an unsigned int:
#ifdef __APPLE__
typedef void *GLhandleARB;
#else
typedef unsigned int GLhandleARB;
#endif
How should we address this? I'd really really really prefer to not have to put
a bunch of casts everywhere, and I'm ok breaking binary compatibility on darwin
in fixing this.
--Jeremy
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