[LLVMdev] Patch to enable LLVM to build successfully with shared library support disabled

[Tom Honermann]

I checked out llvm/trunk today and found that it failed to build 
successfully on Linux when 'configure' was invoked with 
'--disable-shared' and CFLAGS included '-static'.  The attached patch 
modifies a few Makefiles to prevent attempts to build shared libraries 
when ENABLE_SHARED is not set to 1.

Apply the patch in the LLVM root directory with 'patch -p1 ...'

This patch contains a change to tools/Makefile that changes behavior for 
Cygwin and MingW platforms.  The previous logic would filter out 
'bugpoint-passes' from the list of modules to build if the host platform 
is Cygwin or MingW and support for shared libraries was not enabled. 
However, this conflicted with comments there.  The logic and the comment 
both appeared wrong to me.  The logic now simply filters out 
'bugpoint-passes' (and other modules) if shared library support is not 
enabled.  Someone more familiar with this may want to look at this 
regarding the desired Cygwin and MingW behavior.

Tom.
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