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This reverts commit a5fd54f8.

The whole point was to add a way to pass -DVMX86_STATS to the build,
but we can do that with a command line argument when we invoke scons.
Reviewed-by: José Fonseca <jfonseca@vmware.com>

I found a remnant of texture_float build option that wasn't removed in
commit 66673bef

This patch removes it.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>

It's broken, and WGL state tracker is always built with GLES support
noawadays.
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

SCons MSVC support relies on vcvarsall.bat to extract the PATH, CPP
includes, library paths, etc.

And SCons also has an build env var named MSVC_USE_SCRIPT which one can
use to point to alternative vcvarsall.bat script.

This change exposes this MSVC_USE_SCRIPT build env variable as a SCons
command line variable.  This will enable using MSVC outside Program
Files (e.g, network shares, etc.)

This change also links advapi32 library, necessary for the Windows
Registry API used by WGL state tracker, avoiding missing symbols.
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>

To buils The SWR driver (currently optional, not compiled by default)

v3: add option as opposed to target
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

For opt build, add VMX86_STATS to the list of cpp defines.
Reviewed-by: Brian Paul <brianp@vmware.com>

libasan is never linked to shared objects (which doesn't go well with
-z,defs).  It must either be linked to the main executable, or (more
practically for OpenGL drivers) be pre-loaded via LD_PRELOAD.

Otherwise works.

I didn't find anything with llvmpipe.  I suspect the fact that the
JIT compiled code isn't instrumented means there are lots of errors it
can't catch.

But for non-JIT drivers, the Address/Leak Sanitizers seem like a faster
alternative to Valgrind.

Usage (Ubuntu 15.10):

   scons asan=1 libgl-xlib
   export LD_LIBRARY_PATH=$PWD/build/linux-x86_64-debug/gallium/targets/libgl-xlib
   LD_PRELOAD=libasan.so.2 any-opengl-application
Acked-by: Roland Scheidegger <sroland@vmware.com>

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

Saves the trouble of continuously needing to update.
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

For Clang static code analyzer, the scan-build script will produce more
comprehensive output.  Nevertheless you can invoke it as

  CC=clang CXX=clang++ scons analyze=1

For MSVC this is the best way to use its static code analysis.  Simply
invoke as

  scons analyze=1
Reviewed-by: Brian Paul <brianp@vmware.com>

Cc: "10.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

NOTE: Candidate for the stable branches.
Reviewed-by: Brian Paul <brianp@vmware.com>

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: José Fonseca <jfonseca@vmware.com>

This patch gets the FreeBSD SCons build working again. The build still
fails though.
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

* BePC, BeBox, BeMac for Haiku.
* Add sparc architecture as Mesa looks for it.
Signed-off-by: José Fonseca <jfonseca@vmware.com>

Enables building stock Mesa under the Haiku operating system.

Complicates Gallium3D development and doesn't seem to have active users.
Signed-off-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Signed-off-by: José Fonseca <jfonseca@vmware.com>

Not actively used.
Reviewed-by: Brian Paul <brianp@vmware.com>

Optional parallel rendering of spans using OpenMP.
Initial implementation for aa triangles. A new option for scons is
also provided to activate the openmp support (off by default).
Signed-off-by: Brian Paul <brianp@vmware.com>

'verbose' is affirmative, and much more common name for this sort of option.

To enable embedding in platforms other than linux.

The build still fails.

platform.system in SCons on Cygwin includes the OS version number.
Windows XP - CYGWIN_NT-5.1
Windows Vista - CYGWIN_NT-6.0
Windows 7 - CYGWIN_NT-6.1

Reduce all Cygwin platform variants to just 'cygwin' so anything
downstream can simply use 'cygwin' instead of the different full
platform names.

Fixes immediate Python exceptions with SCons on Cygwin.

GLES can be enabled by running scons with

  $ scons gles=yes

When gles=yes is given, the build is changed in three ways.  First,
libmesa.a will be built with FEATURE_ES1 and FEATURE_ES2.  This makes
DRI drivers and libEGL support and advertise GLES support.  Second, GLES
libraries will be created.  They are libGLESv1_CM, libGLESv2, and
libglapi.  Last, libGL or opengl32 will link to libglapi.  This change
is required as _glapi_* will be declared as __declspec(dllimport) in
libmesa.a on windows.  libmesa.a expects those symbols to be defined in
another DLL.  Due to this change to GL, GLES support is marked
experimental.

Note that GLES requires libxml2-python to generate some of its sources.

Hairy stuff. Don't know how to do it better though.

Use scons target and dependency system instead of ad-hoc options.

Now is simply a matter of naming what to build. For example:

  scons libgl-xlib

  scons libgl-gdi

  scons graw-progs

  scons llvmpipe

and so on. And there is also the possibility of scepcified subdirs, e.g.

  scons src/gallium/drivers

If nothing is specified then everything will be build.

There might be some rough corners over the next days. Please bare with me.

Where checked build is compiler optimizations plus debugging checks --
ideal for testing CPU bound loads and running test automation loads.

Fixes Python IndexError exception with default SCons build.

The test for env['platform'] caused an exception since 'env' is not
defined at that point.  Instead, determine the target platform by
scanning sys.argv[].