[Mesa-dev] [Bug 85918] Mesa: MSVC 2010/2012 Compile error

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85918

            Bug ID: 85918
           Summary: Mesa: MSVC 2010/2012 Compile error
           Product: Mesa
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Windows (All)
            Status: NEW
          Severity: blocker
          Priority: medium
         Component: Mesa core
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: mr.bachmann at web.de

Created attachment 108965
  --> https://bugs.freedesktop.org/attachment.cgi?id=108965&action=edit
patch for the file src/mesa/main/macros.h

To reproduce:

- I setup a working environment for compiling mesa on windows following a
description which can be found here:

https://sites.google.com/site/buildllvmpipe/

I used MesaLib-10.3.2 and llvm-3.4.2 for building opengl32.dll.

when finally compiling mesa, the following error occurs:
-------------------------------------------------------------------------------
  Compiling src\mesa\drivers\windows\gdi\wmesa.c ...
wmesa.c
  Compiling src\mesa\main\api_arrayelt.c ...
src\mesa\drivers\windows\gdi\wmesa.c(278) : error C2059: syntax error : 'bad
suffix on number'
src\mesa\drivers\windows\gdi\wmesa.c(278) : error C2146: syntax error : missing
')' before identifier 'color'
src\mesa\drivers\windows\gdi\wmesa.c(278) : error C2059: syntax error : 'bad
suffix on number'
src\mesa\drivers\windows\gdi\wmesa.c(278) : error C2059: syntax error : ')'
src\mesa\drivers\windows\gdi\wmesa.c(278) : error C2059: syntax error : 'bad
suffix on number'
src\mesa\drivers\windows\gdi\wmesa.c(279) : error C2059: syntax error : 'bad
suffix on number'
src\mesa\drivers\windows\gdi\wmesa.c(279) : error C2146: syntax error : missing
')' before identifier 'color'
src\mesa\drivers\windows\gdi\wmesa.c(279) : error C2059: syntax error : 'bad
suffix on number'
src\mesa\drivers\windows\gdi\wmesa.c(279) : error C2059: syntax error : ')'
src\mesa\drivers\windows\gdi\wmesa.c(279) : error C2059: syntax error : 'bad
suffix on number'
src\mesa\drivers\windows\gdi\wmesa.c(280) : error C2059: syntax error : 'bad
suffix on number'
src\mesa\drivers\windows\gdi\wmesa.c(280) : error C2146: syntax error : missing
')' before identifier 'color'
src\mesa\drivers\windows\gdi\wmesa.c(280) : error C2059: syntax error : 'bad
suffix on number'
src\mesa\drivers\windows\gdi\wmesa.c(280) : error C2059: syntax error : ')'
src\mesa\drivers\windows\gdi\wmesa.c(280) : error C2059: syntax error : 'bad
suffix on number'
api_arrayelt.c
  Compiling build\windows-x86_64\mesa\main\api_exec.c ...
scons: *** [build\windows-x86_64\mesa\drivers\windows\gdi\wmesa.obj] Error 2
  Compiling src\mesa\main\api_loopback.c ...
api_exec.c
api_loopback.c
scons: building terminated because of errors.
-------------------------------------------------------------------------------

The problem is to be found in the Macros UNCLAMPED_FLOAT_TO_UBYTE and
CLAMPED_FLOAT_TO_UBYTE.

These macros have a parameter named 'F' which the compiler uses to replace the
number suffix e.g. the 'F' at the end of '255.0F'.

Find attached a patch which allows to compile the code with Visual Studio 2010
and 2012, where the Macro parameter 'F' has simply been renamed to 'FL'.

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