void-packages/srcpkgs/llvm/template

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# Template file for 'llvm'
pkgname=llvm
version=2.7
distfiles="
http://www.llvm.org/releases/${version}/llvm-${version}.tgz
http://www.llvm.org/releases/${version}/clang-${version}.tgz"
build_style=gnu_configure
configure_args="--disable-expensive-checks --disable-debug-runtime
--enable-targets=all --enable-bindings=none --enable-optimize
--enable-shared --enable-libffi --enable-llvmc-dynamic
PATH='/bin:/usr/bin:$PATH'"
short_desc="Low Level Virtual Machine"
maintainer="Juan RP <xtraeme@gmail.com>"
checksum="
99664bdc8503a306038166af33f28eb426d99e297575a59d74a1a0dcbddbbca5
fb349471947f155c1cda1c8a4a3bbc7fa437b86f6875d9978f86c915dfed623a"
long_desc="
Low Level Virtual Machine (LLVM) is:
1. A compilation strategy designed to enable effective program optimization
across the entire lifetime of a program. LLVM supports effective
optimization at compile time, link-time (particularly interprocedural),
run-time and offline (i.e., after software is installed), while remaining
transparent to developers and maintaining compatibility with existing
build scripts.
2. A virtual instruction set - LLVM is a low-level object code
representation that uses simple RISC-like instructions, but provides
rich, language-independent, type information and dataflow (SSA)
information about operands. This combination enables sophisticated
transformations on object code, while remaining light-weight enough to
be attached to the executable. This combination is key to allowing
link-time, run-time, and offline transformations.
3. A compiler infrastructure - LLVM is also a collection of source code that
implements the language and compilation strategy. The primary components
of the LLVM infrastructure are a GCC-based C &amp; C++ front-end, a
link-time optimization framework with a growing set of global and
interprocedural analyses and transformations, static back-ends for many
popular (and some obscure) architectures, a back-end which emits portable
C code, and a Just-In-Time compilers for several architectures.
4. LLVM does not imply things that you would expect from a high-level
virtual machine. It does not require garbage collection or run-time code
generation (In fact, LLVM makes a great static compiler!). Note that
optional LLVM components can be used to build high-level virtual machines
and other systems that need these services."
subpackages="clang clang-devel llvm-docs"
# XXX: Investigate bindings support.
Add_dependency run libgcc
Add_dependency run glibc
Add_dependency run libstdc++
Add_dependency run libffi
Add_dependency build python
Add_dependency build libffi-devel
pre_configure()
{
# Move clang files into the llvm source.
if [ -d ${XBPS_BUILDDIR}/clang-${version} ]; then
mv ${XBPS_BUILDDIR}/clang-${version} ${wrksrc}/tools/clang
fi
}