Building libgl-gdi on Windows fails with "opengl32.def is static and is not compatible with shared target"

Hi,

I'm trying to build opengl32.dll on Windows (tried both 10.2.2, 10.0.2), and I'm _almost_ there. But linking fails with

scons: *** [build\windows-x86\gallium\targets\libgl-gdi\opengl32.dll] Source file: src\gallium\state_trackers\wgl\opengl32.def is static and is not compatible with shared target: build\windows-x86\gallium\targets\libgl-gdi\opengl32.dll

And I'm pretty clueless what's the culprit here. Has anyone seen this error before? Any hint what I should investigate?


Here's my setup:

== Python ==

I'm using Python 2.7.6 with latest libxml2, py2win32, and scons 2.3.2 . Tried both 32 bit and 64 bit version of Python.

== LLVM ==

I built the release_34 branch of llvm.git with

cmake -G "Visual Studio 10 2010" -DCMAKE_INSTALL_PREFIX=D:\dev\llvm\34\msvc-2010-32 -DLLVM_USE_CRT_RELEASE=MT  -DLLVM_TARGETS_TO_BUILD=X86 ..\..\src
msbuild /p:Configuration=Release ALL_BUILD.vcxproj
msbuild /p:Configuration=Release INSTALL.vcxproj

== Mesa ==

Tried mesa-10.0.2, mesa-10.2.2 tags from git, and tweaked SConstruct to use Visual Studio 2010 32 bit:

--- a/SConstruct
+++ b/SConstruct
@@ -37,6 +37,8 @@ env = Environment(
        options = opts,
        tools = ['gallium'],
        toolpath = ['#scons'],
+       MSVC_VERSION = "10.0",
+       TARGET_ARCH = "x86",
        ENV = os.environ,
 )

(For 10.2.2 I also had to disable one assert in code to get it compiled:)

--- a/src/mesa/drivers/common/meta_blit.c
+++ b/src/mesa/drivers/common/meta_blit.c
@@ -326,7 +326,7 @@ setup_glsl_blit_framebuffer(struct gl_context *ctx,
                             GLenum target)
 {
    /* target = GL_TEXTURE_RECTANGLE is not supported in GLES 3.0 */
-   assert(_mesa_is_desktop_gl(ctx) || target == GL_TEXTURE_2D);
+   //assert(_mesa_is_desktop_gl(ctx) || target == GL_TEXTURE_2D);

    unsigned texcoord_size = 2 + (src_rb->Depth > 1 ? 1 : 0);


== Compile Output ==

D:..> set LLVM=D:\dev\llvm\34\msvc-2010-32
D:..> set "PATH=D:\mingw-32\msys\1.0\bin;%PATH%"
D:..> c:\Python27\Scripts\scons.bat build=release llvm=yes libgl-gdi
scons: Reading SConscript files ...
Mkdir("build\windows-x86")
scons: warning: Visual Studio versions prior to 2012 are known to produce incorrect code when optimizations are enabled ( https://bugs.freedesktop.org/show_bug.cgi?id=58718 )
scons: Found LLVM version 3.4.2
Checking for X11 (x11 xext xdamage xfixes)... no
Checking for XCB (x11-xcb xcb-glx >= 1.8.1)... no
Checking for XF86VIDMODE (xxf86vm)... no
Checking for DRM (libdrm >= 2.4.24)... no
Checking for DRM_INTEL (libdrm_intel >= 2.4.30)... no
Checking for XORG (xorg-server >= 1.6.0)... no
Checking for KMS (libkms >= 2.4.24)... no
Checking for UDEV (libudev > 150)... no
scons: done reading SConscript files.
scons: Building targets ...
[...]
  Archiving build\windows-x86\gallium\auxiliary\gallium.lib ...
Using tempfile c:\users\kakoehne\appdata\local\temp\tmpbcs78r.lnk for command line:
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scons: *** [build\windows-x86\gallium\targets\libgl-gdi\opengl32.dll] Source file: src\gallium\state_trackers\wgl\opengl32.def is static and is not compatible with shared target: build\windows-x86\gallium\targets\libgl-gdi\opengl32.dll
scons: building terminated because of errors.



Any help is appreciated.

Regards

Kai