Update LLVM build system for 249b40b558955afe5ac2b549edcf2d7f859c8cc9

This enables the use of modules for a significant build performance gain
when building with clang as host compiler or when using

Update LLVM build system for 249b40b558955afe5ac2b549edcf2d7f859c8cc9

This enables the use of modules for a significant build performance gain
when building with clang as host compiler or when using HAVE_LLVM=yes.
Switch libc++ to using the copy from the mono-repo.

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LLVM doesn't use term.h, so don't check for it when probing here either.
Increase robustness of checks for incremental builds by forcing a
dependency on the Makefile itself.

Create a new bsd.hostinit.mk file and put the build definitions for all host
programs there; make all Makefiles that use bsd.hostprog.mk include it.
Namely turn off MKREPRO and don't make lint, man p

Create a new bsd.hostinit.mk file and put the build definitions for all host
programs there; make all Makefiles that use bsd.hostprog.mk include it.
Namely turn off MKREPRO and don't make lint, man pages, info files etc.
Remove the Makefile.inc files that contained these same settings, and
remove the settings from Makefile.host

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Sync tools build glue with LLVM pre-4.0.0.

misc/48722: Use explicit HOST_SH in case the user insists on removing
permissions from the filesystem.

cleandir-llvm should not exist in the filesystem

Pass HOST_CXX to llvm configure as CXX=${HOST_CXX:Q} since llvm wants c++
more than cc.

Update LLVM/Clang snapshot to r189662. This includes many improvements
to the new SLP vectorizer, fast codegen support for PPC and using
terminfo for the color sequences. In addition, add (optional)

Update LLVM/Clang snapshot to r189662. This includes many improvements
to the new SLP vectorizer, fast codegen support for PPC and using
terminfo for the color sequences. In addition, add (optional) build
infrastructure for lld to allow easier testing. This is controlled by
MKLLD.

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Work-around for python detection in LLVM's configure script

Fix version string returned by clang --version.
Integrate the in-tree config file generation with the cross-building
toolchain. Regenerate the files.
Keep version numbers all in one place.

Update LLVM/Clang snapshot to r158533. This brings in support for
stack-realignment in functions using alloca on x86. Move to
/usr/include/clang-3.2 to reflect the version.

Forcefully override the GNU make configure check. The build system in
NetBSD doesn't need it, so the configure check doesn't have to reject
a prestine NetBSD host.

Update LLVM/Clang snapshot to r151411. This brings in Lambda support for
C++11 and a new literal format string check to catch variadic argument
functions.

Partially revert last, keep assertions enabled (but with the correct
spelling of the option).

Pass HOST_CC otherwise fails e.g. on Mac OS X; fixed typo in --disable-assertions

Fix cleandir-llvm (only remove config if it exists)

Hook up LLVM's MIPS target.

Also enable toolchain build of ARM

Hook up LLVM's SPARC target.

Hook up LLVM's PowerPC.

Update to LLVM/Clang revision 131404. This includes the fix for asm labels
on builtins (broke longjmp usage) and a better cross-compiling support
in combination with -m32/-m64.

Update configuration

Update to LLVM/Clang revision 131404. This includes the fix for asm labels
on builtins (broke longjmp usage) and a better cross-compiling support
in combination with -m32/-m64.

Update configuration to include /usr/include/clang-3.0 in the search
path.

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--with-clang-resource-dir is no longer needed

Update LLVM snapshot. This allows deriving the target from the binary
name, provides a proper CPP mode and fixes a number of compat issues
in the integrated assembler.

Build the toolchain compiler o

Update LLVM snapshot. This allows deriving the target from the binary
name, provides a proper CPP mode and fixes a number of compat issues
in the integrated assembler.

Build the toolchain compiler optimized and without assertions now.

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Add LLVM and clang build system. It is enabled by MKLLVM=yes.
Upstream sources can be fetched by running "make checkout" in
src/external/bsd/llvm, they will be properly imported once the
integration

Add LLVM and clang build system. It is enabled by MKLLVM=yes.
Upstream sources can be fetched by running "make checkout" in
src/external/bsd/llvm, they will be properly imported once the
integration and missing features are sorted out.

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