##
##  llvm.spec -- OpenPKG RPM Package Specification
##  Copyright (c) 2000-2019 OpenPKG Project <http://openpkg.org/>
##
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##  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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##  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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##

#   package information
Name:         llvm
Summary:      Low-Level Virtual Machine (LLVM)
URL:          http://llvm.org/
Vendor:       University of Illinois
Packager:     OpenPKG Project
Distribution: OpenPKG Community
Class:        PLUS
Group:        Compiler
License:      University of Illinois Open Source License
Version:      6.0.1
Release:      20180626

#   list of sources
Source0:      http://llvm.org/releases/%{version}/llvm-%{version}.src.tar.xz
Source1:      http://llvm.org/releases/%{version}/cfe-%{version}.src.tar.xz
Source2:      http://llvm.org/releases/%{version}/compiler-rt-%{version}.src.tar.xz
Source3:      http://llvm.org/releases/%{version}/libcxx-%{version}.src.tar.xz
Patch0:       llvm.patch

#   build information
BuildPreReq:  OpenPKG, openpkg >= 20160101, make, gcc, gcc::with_cxx = yes, perl, cmake
PreReq:       OpenPKG, openpkg >= 20160101
BuildPreReq:  libexecinfo
PreReq:       libexecinfo

%description
    Low Level Virtual Machine (LLVM) is 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. LLVM is a virtual instruction set. LLVM is a low-level
    object code representation that uses simple RISC-like instructions.
    LLVM provides a link-time optimization framework with a growing set
    of global and interprocedural analyses and transformations, static
    back-ends for the X86, X86-64, PowerPC 32/64, ARM, Thumb, IA-64,
    Alpha and SPARC architectures, a back-end which emits portable C
    code, and a Just-In-Time compiler for X86, X86-64, PowerPC 32/64
    processors.

%track
    prog llvm = {
        version   = %{version}
        url       = http://llvm.org/releases/download.html
        regex     = llvm-(__VER__)\.src\.tar\.xz
    }

%prep
    %setup -q -n llvm-%{version}.src
    %setup -q -n llvm-%{version}.src -T -D -a 1
    %setup -q -n llvm-%{version}.src -T -D -a 2
    %setup -q -n llvm-%{version}.src -T -D -a 3
    mv cfe-%{version}.src tools/clang
    mv compiler-rt-%{version}.src projects/compiler-rt
    mv libcxx-%{version}.src projects/libcxx
    %patch -p0

%build
    mkdir build
    cd build
    cmake \
        -Wno-dev \
        -DCMAKE_BUILD_TYPE="Release" \
        -DCMAKE_C_COMPILER="%{l_cc}" \
        -DCMAKE_C_FLAGS="%{l_cflags -O} %{l_cppflags}" \
        -DCMAKE_CXX_COMPILER="%{l_cxx}" \
        -DCMAKE_CXX_FLAGS="%{l_cxxflags -O} %{l_cppflags}" \
        -DCMAKE_EXE_LINKER_FLAGS="%{l_ldflags}" \
        -DCMAKE_INSTALL_PREFIX="%{l_prefix}" \
        -DLLVM_ENABLE_PIC=ON \
        -DLLVM_BINDINGS_LIST="" \
        -DLLVM_OPTIMIZED_TABLEGEN=ON \
        -DLLVM_ENABLE_ASSERTIONS=OFF \
        -DBUILD_SHARED_LIBS=OFF \
        ..
    %{l_make} %{l_mflags -O}

%install
    (   cd build
        %{l_make} %{l_mflags} install DESTDIR=$RPM_BUILD_ROOT
    ) || exit $?
    rm -rf $RPM_BUILD_ROOT%{l_prefix}/docs
    find $RPM_BUILD_ROOT%{l_prefix} -name ".dir" -type f -print | xargs rm -f
    strip $RPM_BUILD_ROOT%{l_prefix}/bin/* >/dev/null 2>&1 || true
    %{l_rpmtool} files -v -ofiles -r$RPM_BUILD_ROOT %{l_files_std}

%files -f files

%clean