Bump LLVM and Clang to 6.0.1, move to user/

10 files changed, 610 insertions, 0 deletions

diff --git a/user/clang/0001-Add-support-for-Ad-lie-Linux.patch b/user/clang/0001-Add-support-for-Ad-lie-Linux.patch
new file mode 100644
index 000000000..f12adf513
--- /dev/null
+++ b/user/clang/0001-Add-support-for-Ad-lie-Linux.patch
@@ -0,0 +1,78 @@
+From 085ba75b10376fa55bb94cb6fa6c54526957732f Mon Sep 17 00:00:00 2001
+From: "A. Wilcox" <AWilcox@Wilcox-Tech.com>
+Date: Thu, 13 Sep 2018 11:42:28 -0500
+Subject: [PATCH] =?UTF-8?q?Add=20support=20for=20Ad=C3=A9lie=20Linux?=
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+---
+ include/clang/Driver/Distro.h   | 5 +++++
+ lib/Driver/Distro.cpp           | 3 +++
+ lib/Driver/ToolChains/Linux.cpp | 6 ++++--
+ 3 files changed, 12 insertions(+), 2 deletions(-)
+
+diff --git a/include/clang/Driver/Distro.h b/include/clang/Driver/Distro.h
+index 7b34a09256..7a3774a4f1 100644
+--- a/include/clang/Driver/Distro.h
++++ b/include/clang/Driver/Distro.h
+@@ -26,6 +26,7 @@ public:
+     // NB: Releases of a particular Linux distro should be kept together
+     // in this enum, because some tests are done by integer comparison against
+     // the first and last known member in the family, e.g. IsRedHat().
++    AdelieLinux,
+     AlpineLinux,
+     ArchLinux,
+     DebianLenny,
+@@ -118,6 +119,10 @@ public:
+     return DistroVal >= UbuntuHardy && DistroVal <= UbuntuCosmic;
+   }
+ 
++  bool IsAdelieLinux() const {
++    return DistroVal == AdelieLinux;
++  }
++
+   bool IsAlpineLinux() const {
+     return DistroVal == AlpineLinux;
+   }
+diff --git a/lib/Driver/Distro.cpp b/lib/Driver/Distro.cpp
+index 2c4d44faf8..7ef35ab379 100644
+--- a/lib/Driver/Distro.cpp
++++ b/lib/Driver/Distro.cpp
+@@ -130,6 +130,9 @@ static Distro::DistroType DetectDistro(vfs::FileSystem &VFS) {
+   if (VFS.exists("/etc/exherbo-release"))
+     return Distro::Exherbo;
+ 
++  if (VFS.exists("/etc/adelie-release"))
++    return Distro::AdelieLinux;
++
+   if (VFS.exists("/etc/alpine-release"))
+     return Distro::AlpineLinux;
+ 
+diff --git a/lib/Driver/ToolChains/Linux.cpp b/lib/Driver/ToolChains/Linux.cpp
+index 2a87cb077c..85bcd8ed47 100644
+--- a/lib/Driver/ToolChains/Linux.cpp
++++ b/lib/Driver/ToolChains/Linux.cpp
+@@ -234,7 +234,8 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+     ExtraOpts.push_back("now");
+   }
+ 
+-  if (Distro.IsOpenSUSE() || Distro.IsUbuntu() || Distro.IsAlpineLinux()) {
++  if (Distro.IsOpenSUSE() || Distro.IsUbuntu() || Distro.IsAlpineLinux() ||
++      Distro.IsAdelieLinux()) {
+     ExtraOpts.push_back("-z");
+     ExtraOpts.push_back("relro");
+   }
+@@ -268,7 +269,8 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+   // Hexagon linker/loader does not support .gnu.hash
+   if (!IsMips && !IsAndroid && !IsHexagon) {
+     if (Distro.IsRedhat() || Distro.IsOpenSUSE() || Distro.IsAlpineLinux() ||
+-        (Distro.IsUbuntu() && Distro >= Distro::UbuntuMaverick))
++        Distro.IsAdelieLinux() ||
++	(Distro.IsUbuntu() && Distro >= Distro::UbuntuMaverick))
+       ExtraOpts.push_back("--hash-style=gnu");
+ 
+     if (Distro.IsDebian() || Distro.IsOpenSUSE() || Distro == Distro::UbuntuLucid ||
+-- 
+2.18.0
+
diff --git a/user/clang/0008-Fix-ClangConfig-cmake-LLVM-path.patch b/user/clang/0008-Fix-ClangConfig-cmake-LLVM-path.patch
new file mode 100644
index 000000000..f1c1c2449
--- /dev/null
+++ b/user/clang/0008-Fix-ClangConfig-cmake-LLVM-path.patch
@@ -0,0 +1,25 @@
+From: Adeel <adeelbm@outlook.com>
+Date: Sun, 6 May 2018 10:22:00 +0200
+Subject: [PATCH] Fix ClangConfig.cmake to look for LLVM-Config.cmake in correct location
+
+This results in the following change in the generated ClangConfig.cmake:
+
+     find_package(LLVM REQUIRED CONFIG
+    -             HINTS "${CLANG_INSTALL_PREFIX}/lib/cmake/llvm")
+    +             HINTS "/usr/lib/llvm5/lib/cmake/llvm")
+
+This is needed e.g. for building lldb.
+
+See https://github.com/alpinelinux/aports/pull/2342 for more information.
+
+--- a/cmake/modules/CMakeLists.txt
++++ b/cmake/modules/CMakeLists.txt
+@@ -39,7 +39,7 @@ foreach(p ${_count})
+ get_filename_component(CLANG_INSTALL_PREFIX \"\${CLANG_INSTALL_PREFIX}\" PATH)")
+ endforeach(p)
+ set(CLANG_CONFIG_CMAKE_DIR "\${CLANG_INSTALL_PREFIX}/${CLANG_INSTALL_PACKAGE_DIR}")
+-set(CLANG_CONFIG_LLVM_CMAKE_DIR "\${CLANG_INSTALL_PREFIX}/${LLVM_INSTALL_PACKAGE_DIR}")
++set(CLANG_CONFIG_LLVM_CMAKE_DIR "${llvm_cmake_builddir}")
+ set(CLANG_CONFIG_EXPORTS_FILE "\${CLANG_CMAKE_DIR}/ClangTargets.cmake")
+ set(CLANG_CONFIG_INCLUDE_DIRS
+   "\${CLANG_INSTALL_PREFIX}/include"
diff --git a/user/clang/APKBUILD b/user/clang/APKBUILD
new file mode 100644
index 000000000..7508bcc82
--- /dev/null
+++ b/user/clang/APKBUILD
@@ -0,0 +1,88 @@
+# Contributor Travis Tilley <ttilley@gmail.com>
+# Maintainer: A. Wilcox <awilfox@adelielinux.org>
+pkgname=clang
+# Note: Update together with llvm.
+pkgver=6.0.1
+pkgrel=0
+_llvmver=${pkgver%%.*}
+pkgdesc="A C language family front-end for LLVM"
+arch="all"
+options="!dbg"
+url="https://llvm.org/"
+license="NCSA"
+depends_dev="$pkgname=$pkgver-r$pkgrel"
+makedepends="cmake isl-dev libedit-dev libxml2-dev libxml2-utils
+	llvm-dev>=$_llvmver llvm-static>=$_llvmver llvm-test-utils>=$_llvmver"
+subpackages="$pkgname-static $pkgname-dev $pkgname-doc $pkgname-libs
+	$pkgname-analyzer::noarch"
+source="https://llvm.org/releases/$pkgver/cfe-$pkgver.src.tar.xz
+	0001-Add-support-for-Ad-lie-Linux.patch
+	0008-Fix-ClangConfig-cmake-LLVM-path.patch
+	use-llvm-lit.patch
+	"
+builddir="$srcdir/cfe-$pkgver.src"
+
+build() {
+	mkdir -p "$builddir"/build
+	cd "$builddir"/build
+
+	cmake .. -Wno-dev \
+		-DCMAKE_BUILD_TYPE=MinSizeRel \
+		-DCMAKE_INSTALL_PREFIX=/usr \
+		-DCMAKE_VERBOSE_MAKEFILE=OFF \
+		-DCLANG_VENDOR=${DISTRO_SHORT_NAME:-Adélie} \
+		-DCLANG_BUILD_EXAMPLES=OFF \
+		-DCLANG_INCLUDE_DOCS=ON \
+		-DCLANG_INCLUDE_TESTS=ON \
+		-DCLANG_PLUGIN_SUPPORT=ON \
+		-DLIBCLANG_BUILD_STATIC=ON \
+		-DLLVM_ENABLE_EH=ON \
+		-DLLVM_ENABLE_RTTI=ON
+
+	make clang-tblgen
+	# too memory hungry
+	if [ -z "$JOBS" -o $JOBS -gt 32 ]; then
+		make -j32
+	else
+		make
+	fi
+}
+
+check() {
+	cd "$builddir"/build
+	ln -s /usr/bin/lit bin/llvm-lit
+	make check-clang
+}
+
+package() {
+	cd "$builddir"/build
+
+	make DESTDIR="$pkgdir" install
+	install -m 644 lib/libclang.a "$pkgdir"/usr/lib
+}
+
+static() {
+	pkgdesc="Static libraries for clang"
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/*.a "$subpkgdir"/usr/lib/
+}
+
+analyzer() {
+	pkgdesc="Clang source code analysis framework"
+	depends="$pkgname=$pkgver-r$pkgrel perl python3"
+
+	cd "$pkgdir"
+
+	mkdir -p "$subpkgdir"/usr/bin \
+		"$subpkgdir"/usr/libexec \
+		"$subpkgdir"/usr/share/
+	mv usr/bin/scan-* "$subpkgdir"/usr/bin/
+	mv usr/libexec/*-analyzer "$subpkgdir"/usr/libexec/
+	mv usr/share/scan-* "$subpkgdir"/usr/share/
+}
+
+sha512sums="f64ba9290059f6e36fee41c8f32bf483609d31c291fcd2f77d41fecfdf3c8233a5e23b93a1c73fed03683823bd6e72757ed993dd32527de3d5f2b7a64bb031b9  cfe-6.0.1.src.tar.xz
+44aa152d50822a9e1a223b9e07e150ffa830c55deb4c4ca29e6218a0103eb263a00b41fd1ca84390e65fa08005901a0a0f88cf529bff8764220e99d06adef5fc  0001-Add-support-for-Ad-lie-Linux.patch
+9485fe4fd6182df543735ed8f4ce618693d0faeafa86d3f9574a6c7abf50978e2d56e0a94be3ed94d515cc937c388d66ceff1bbc9bb120d371b6d3e95340da00  0008-Fix-ClangConfig-cmake-LLVM-path.patch
+8a596e7369b5791e7e9c3278320aa5bac30d91f27d9a0df335ea862c359623869353d12145c3b64730f721600522f3acc5abe706428091482e0209e4ff308175  use-llvm-lit.patch"
diff --git a/user/clang/use-llvm-lit.patch b/user/clang/use-llvm-lit.patch
new file mode 100644
index 000000000..0cbb84835
--- /dev/null
+++ b/user/clang/use-llvm-lit.patch
@@ -0,0 +1,11 @@
+--- cfe-6.0.1.src/test/CMakeLists.txt.old	2017-12-12 19:47:40.000000000 +0000
++++ cfe-6.0.1.src/test/CMakeLists.txt	2018-09-13 17:01:03.690000000 +0000
+@@ -115,7 +115,7 @@
+ 
+ add_lit_testsuite(check-clang "Running the Clang regression tests"
+   ${CMAKE_CURRENT_BINARY_DIR}
+-  #LIT ${LLVM_LIT}
++  LIT ${LLVM_LIT}
+   PARAMS ${CLANG_TEST_PARAMS}
+   DEPENDS ${CLANG_TEST_DEPS}
+   ARGS ${CLANG_TEST_EXTRA_ARGS}
diff --git a/user/llvm6/APKBUILD b/user/llvm6/APKBUILD
new file mode 100644
index 000000000..5ec756ef9
--- /dev/null
+++ b/user/llvm6/APKBUILD
@@ -0,0 +1,244 @@
+# Contributor: Travis Tilley <ttilley@gmail.com>
+# Contributor: Mitch Tishmack <mitch.tishmack@gmail.com>
+# Contributor: Jakub Jirutka <jakub@jirutka.cz>
+# Maintainer: A. Wilcox <awilfox@adelielinux.org>
+_pkgname=llvm
+pkgver=6.0.1
+_majorver=${pkgver%%.*}
+pkgname=$_pkgname$_majorver
+pkgrel=0
+pkgdesc="Low Level Virtual Machine compiler system, version $_majorver"
+arch="all"
+options="!checkroot !dbg"
+url="https://llvm.org/"
+license="NCSA"
+depends_dev="$pkgname=$pkgver-r$pkgrel"
+makedepends="binutils-dev chrpath cmake file libffi-dev python3 zlib-dev"
+subpackages="$pkgname-static $pkgname-libs $pkgname-dev $pkgname-test-utils:_test_utils"
+source="http://llvm.org/releases/$pkgver/llvm-$pkgver.src.tar.xz
+	llvm-fix-build-with-musl-libc.patch
+	cmake-fix-libLLVM-name.patch
+	disable-FileSystemTest.CreateDir-perms-assert.patch
+	disable-dlclose-test.patch
+	musl-ppc64-elfv2.patch
+	"
+builddir="$srcdir/$_pkgname-$pkgver.src"
+
+# ARM has few failures in test suite that we don't care about currently and
+# also it takes forever to run them on the builder.
+case "$CARCH" in
+	arm*) options="$options !check";;
+esac
+
+# Whether is this package the default (latest) LLVM version.
+_default_llvm="yes"
+
+if [ "$_default_llvm" = yes ]; then
+	provides="llvm=$pkgver-r$pkgrel"
+	replaces="llvm"
+fi
+
+# NOTE: It seems that there's no (sane) way how to change includedir, sharedir
+# etc. separately, just the CMAKE_INSTALL_PREFIX. Standard CMake variables and
+# even  LLVM-specific variables, that are related to these paths, actually
+# don't work (in llvm 3.7).
+#
+# When building a software that depends on LLVM, utility llvm-config should be
+# used to discover where is LLVM installed. It provides options to print
+# path of bindir, includedir, and libdir separately, but in its source, all
+# these paths are actually hard-coded against INSTALL_PREFIX. We can patch it
+# and move paths manually, but I'm really not sure what it may break...
+#
+# Also note that we should *not* add version suffix to files in llvm bindir!
+# It breaks build system of some software that depends on LLVM, because they
+# don't expect these files to have a sufix.
+#
+# So, we install all the LLVM files into /usr/lib/llvm$_majorver.
+# BTW, Fedora and Debian do the same thing.
+#
+_prefix="usr/lib/llvm$_majorver"
+
+prepare() {
+	default_prepare
+	cd "$builddir"
+
+	# https://bugs.llvm.org//show_bug.cgi?id=31870
+	rm test/tools/llvm-symbolizer/print_context.c
+
+	mkdir -p "$builddir"/build
+}
+
+build() {
+	cd "$builddir"/build
+
+	# Auto-detect it by guessing either.
+	local ffi_include_dir="$(pkg-config --cflags-only-I libffi | sed 's|^-I||g')"
+
+	cmake -G "Unix Makefiles" -Wno-dev \
+		-DCMAKE_BUILD_TYPE=Release \
+		-DCMAKE_INSTALL_PREFIX=/$_prefix \
+		-DCMAKE_VERBOSE_MAKEFILE=NO \
+		-DFFI_INCLUDE_DIR="$ffi_include_dir" \
+		-DLLVM_BINUTILS_INCDIR=/usr/include \
+		-DLLVM_BUILD_DOCS=OFF \
+		-DLLVM_BUILD_EXAMPLES=OFF \
+		-DLLVM_BUILD_EXTERNAL_COMPILER_RT=ON \
+		-DLLVM_BUILD_LLVM_DYLIB=ON \
+		-DLLVM_BUILD_TESTS=ON \
+		-DLLVM_DEFAULT_TARGET_TRIPLE="$CBUILD" \
+		-DLLVM_ENABLE_ASSERTIONS=OFF \
+		-DLLVM_ENABLE_CXX1Y=ON \
+		-DLLVM_ENABLE_FFI=ON \
+		-DLLVM_ENABLE_LIBCXX=OFF \
+		-DLLVM_ENABLE_PIC=ON \
+		-DLLVM_ENABLE_RTTI=ON \
+		-DLLVM_ENABLE_SPHINX=OFF \
+		-DLLVM_ENABLE_TERMINFO=ON \
+		-DLLVM_ENABLE_ZLIB=ON \
+		-DLLVM_HOST_TRIPLE="$CHOST" \
+		-DLLVM_INCLUDE_EXAMPLES=OFF \
+		-DLLVM_LINK_LLVM_DYLIB=ON \
+		-DLLVM_TARGETS_TO_BUILD='X86;ARM;AArch64;PowerPC;SystemZ;AMDGPU;NVPTX;Mips;BPF' \
+		"$builddir"
+
+	make llvm-tblgen
+	make
+
+	python3 ../utils/lit/setup.py build
+}
+
+check() {
+	cd "$builddir"/build
+
+	# FIXME: Few tests fail on s390x, ignore it for now. See build log
+	# https://gist.github.com/jirutka/6edc951ad5b8002cf1780546cf661edc
+	case "$CARCH" in
+		s390x) make check-llvm || true;;
+		*) make check-llvm;;
+	esac
+}
+
+package() {
+	cd "$builddir"/build
+
+	make DESTDIR="$pkgdir" install
+
+	cd "$pkgdir"/$_prefix
+
+	# Remove RPATHs.
+	file lib/*.so bin/* \
+		| awk -F: '$2~/ELF/{print $1}' \
+		| xargs -r chrpath -d
+
+	# Symlink files from /usr/lib/llvm*/bin to /usr/bin.
+	mkdir -p "$pkgdir"/usr/bin
+	local name newname path
+	for path in bin/*; do
+		name=${path##*/}
+		# Add version infix/suffix to the executable name.
+		case "$name" in
+			llvm-*) newname="llvm$_majorver-${name#llvm-}";;
+			*) newname="$name$_majorver";;
+		esac
+		# If this package provides=llvm (i.e. it's the default/latest
+		# llvm package), omit version infix/suffix.
+		if [ "$_default_llvm" = yes ]; then
+			newname=$name
+		fi
+		case "$name" in
+			FileCheck | obj2yaml | yaml2obj) continue;;
+		esac
+		ln -s ../lib/llvm$_majorver/bin/$name "$pkgdir"/usr/bin/$newname
+	done
+
+	# Move /usr/lib/$pkgname/include/ into /usr/include/$pkgname/
+	# and symlink it back.
+	_mv include/* "$pkgdir"/usr/include/$pkgname/
+	rmdir include
+	ln -s ../../include/$pkgname include
+
+	# Move /usr/lib/$pkgname/lib/cmake/llvm/ into /usr/lib/cmake/$pkgname/
+	# and symlink it back.
+	_mv lib/cmake/llvm/* "$pkgdir"/usr/lib/cmake/$pkgname/
+	rmdir lib/cmake/llvm
+	ln -s ../../../cmake/$pkgname lib/cmake/llvm
+}
+
+static() {
+	pkgdesc="LLVM $_majorver static libraries"
+	_common_subpkg
+
+	_mv "$pkgdir"/$_prefix/lib/*.a "$subpkgdir"/$_prefix/lib/
+}
+
+libs() {
+	pkgdesc="LLVM $_majorver runtime library"
+	local soname="libLLVM-$_majorver.0.so"
+	local soname2="libLLVM-$pkgver.so"
+	_common_subpkg
+
+	mkdir -p "$subpkgdir"
+	cd "$subpkgdir"
+
+	# libLLVM should be in /usr/lib. This is needed for binaries that are
+	# dynamically linked with libLLVM, so they can find it on default path.
+	_mv "$pkgdir"/$_prefix/lib/$soname usr/lib/
+	ln -s $soname usr/lib/$soname2
+
+	# And also symlink it back to the LLVM prefix.
+	mkdir -p $_prefix/lib
+	ln -s ../../$soname $_prefix/lib/$soname
+	ln -s ../../$soname $_prefix/lib/$soname2
+}
+
+dev() {
+	_common_subpkg
+	default_dev
+	cd "$subpkgdir"
+
+	_mv "$pkgdir"/$_prefix/lib $_prefix/
+	_mv "$pkgdir"/$_prefix/include $_prefix/
+
+	_mv "$pkgdir"/$_prefix/bin/llvm-config $_prefix/bin/
+}
+
+_test_utils() {
+	pkgdesc="LLVM $_majorver utilities for executing LLVM and Clang style test suites"
+	depends="python3"
+	_common_subpkg
+	replaces=""
+
+	local litver=$(python3 "$builddir"/utils/lit/setup.py --version 2>/dev/null \
+		| sed 's/\.dev.*$//')
+	test -n "$litver" || return 1
+	provides="$provides lit=$litver-r$pkgrel"
+
+	cd "$builddir"/build
+
+	install -D -m 755 bin/FileCheck "$subpkgdir"/$_prefix/bin/FileCheck
+	install -D -m 755 bin/count "$subpkgdir"/$_prefix/bin/count
+	install -D -m 755 bin/not "$subpkgdir"/$_prefix/bin/not
+
+	python3 ../utils/lit/setup.py install --prefix=/usr --root="$subpkgdir"
+	ln -s ../../../bin/lit "$subpkgdir"/$_prefix/bin/lit
+}
+
+_common_subpkg() {
+	if [ "$_default_llvm" = yes ]; then
+		replaces="llvm${subpkgname#$pkgname}"
+		provides="$replaces=$pkgver-r$pkgrel"
+	fi
+}
+
+_mv() {
+	local dest; for dest; do true; done  # get last argument
+	mkdir -p "$dest"
+	mv $@
+}
+
+sha512sums="cbbb00eb99cfeb4aff623ee1a5ba075e7b5a76fc00c5f9f539ff28c108598f5708a0369d5bd92683def5a20c2fe60cab7827b42d628dbfcc79b57e0e91b84dd9  llvm-6.0.1.src.tar.xz
+f84cd65d7042e89826ba6e8d48c4c302bf4980da369d7f19a55f217e51c00ca8ed178d453df3a3cee76598a7cecb94aed0775a6d24fe73266f82749913fc3e71  llvm-fix-build-with-musl-libc.patch
+6d1a716e5aa24e6b9a3acf4cc11e2504b1b01abf574074e9e5617b991de87d5e4e687eb18e85e73d5e632568afe2fc357771c4c96f9e136502071991496fb78c  cmake-fix-libLLVM-name.patch
+49c47f125014b60d0ea7870f981a2c1708ad705793f89287ed846ee881a837a4dc0170bf467e03f2ef56177473128945287749ac80dc2d13cfabcf8b929ba58a  disable-FileSystemTest.CreateDir-perms-assert.patch
+caeec8e4dbd92f5f74940780b69075f3879a267a8623822cbdc193fd14706eb089071e3a5a20d60cc2eca59e4c5b2a61d29827a2f3362ee7c5f74f11d9ace200  disable-dlclose-test.patch
+bde743960003a2a39868af9f665d86fadb0a7b1e7eb51c16ebbd74ce4c5220bbc400b1d5211c02fc2643863f49ee961e9a18dffa0eb813a0e1723613396512ab  musl-ppc64-elfv2.patch"
diff --git a/user/llvm6/cmake-fix-libLLVM-name.patch b/user/llvm6/cmake-fix-libLLVM-name.patch
new file mode 100644
index 000000000..cb29fe2ef
--- /dev/null
+++ b/user/llvm6/cmake-fix-libLLVM-name.patch
@@ -0,0 +1,26 @@
+Include version in name of shared libs
+
+libLLVM.so -> libLLVM-$MAJOR.$MINOR.so
+
+Source: http://pkgs.fedoraproject.org/cgit/rpms/llvm3.9.git/tree/llvm-soversion.patch?id=3dac83eaa5b88f550ae50125b14b8f644e10617b
+--- a/cmake/modules/AddLLVM.cmake
++++ b/cmake/modules/AddLLVM.cmake
+@@ -450,6 +450,18 @@
+         PREFIX ""
+         )
+     endif()
++
++    # Set SOVERSION on shared libraries that lack explicit SONAME
++    # specifier, on *nix systems that are not Darwin.
++    if(UNIX AND NOT APPLE AND NOT ARG_SONAME)
++      set_target_properties(${name}
++        PROPERTIES
++		# Concatenate the version numbers since ldconfig expects exactly
++		# one component indicating the ABI version, while LLVM uses
++		# major+minor for that.
++        SOVERSION ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}
++        VERSION ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}${LLVM_VERSION_SUFFIX})
++    endif()
+   endif()
+ 
+   if(ARG_MODULE OR ARG_SHARED)
diff --git a/user/llvm6/disable-FileSystemTest.CreateDir-perms-assert.patch b/user/llvm6/disable-FileSystemTest.CreateDir-perms-assert.patch
new file mode 100644
index 000000000..e73ce9b6f
--- /dev/null
+++ b/user/llvm6/disable-FileSystemTest.CreateDir-perms-assert.patch
@@ -0,0 +1,61 @@
+Do not assert permissions of file created in /tmp directory.
+
+This assertion fails, probably due to some specific setup of /tmp
+on build servers.
+
+    FAIL: LLVM-Unit :: Support/SupportTests/FileSystemTest.CreateDir (1293 of 17222)
+    ******************** TEST 'LLVM-Unit :: Support/SupportTests/FileSystemTest.CreateDir' FAILED ********************
+    Note: Google Test filter = FileSystemTest.CreateDir
+    [==========] Running 1 test from 1 test case.
+    [----------] Global test environment set-up.
+    [----------] 1 test from FileSystemTest
+    [ RUN      ] FileSystemTest.CreateDir
+    /home/buildozer/aports/testing/llvm3.9/src/llvm-3.9.1.src/unittests/Support/Path.cpp:591: Failure
+    Value of: fs::perms::owner_read | fs::perms::owner_exe
+      Actual: 320
+    Expected: Status.permissions() & fs::perms::all_all
+    Which is: 448
+
+--- a/unittests/Support/Path.cpp
++++ b/unittests/Support/Path.cpp
+@@ -579,23 +579,23 @@
+   ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "foo"));
+ 
+ #ifdef LLVM_ON_UNIX
+-  // Set a 0000 umask so that we can test our directory permissions.
+-  mode_t OldUmask = ::umask(0000);
+-
+-  fs::file_status Status;
+-  ASSERT_NO_ERROR(
+-      fs::create_directory(Twine(TestDirectory) + "baz500", false,
+-                           fs::perms::owner_read | fs::perms::owner_exe));
+-  ASSERT_NO_ERROR(fs::status(Twine(TestDirectory) + "baz500", Status));
+-  ASSERT_EQ(Status.permissions() & fs::perms::all_all,
+-            fs::perms::owner_read | fs::perms::owner_exe);
+-  ASSERT_NO_ERROR(fs::create_directory(Twine(TestDirectory) + "baz777", false,
+-                                       fs::perms::all_all));
+-  ASSERT_NO_ERROR(fs::status(Twine(TestDirectory) + "baz777", Status));
+-  ASSERT_EQ(Status.permissions() & fs::perms::all_all, fs::perms::all_all);
+-
+-  // Restore umask to be safe.
+-  ::umask(OldUmask);
++//  // Set a 0000 umask so that we can test our directory permissions.
++//  mode_t OldUmask = ::umask(0000);
++//
++//  fs::file_status Status;
++//  ASSERT_NO_ERROR(
++//      fs::create_directory(Twine(TestDirectory) + "baz500", false,
++//                           fs::perms::owner_read | fs::perms::owner_exe));
++//  ASSERT_NO_ERROR(fs::status(Twine(TestDirectory) + "baz500", Status));
++//  ASSERT_EQ(Status.permissions() & fs::perms::all_all,
++//            fs::perms::owner_read | fs::perms::owner_exe);
++//  ASSERT_NO_ERROR(fs::create_directory(Twine(TestDirectory) + "baz777", false,
++//                                       fs::perms::all_all));
++//  ASSERT_NO_ERROR(fs::status(Twine(TestDirectory) + "baz777", Status));
++//  ASSERT_EQ(Status.permissions() & fs::perms::all_all, fs::perms::all_all);
++//
++//  // Restore umask to be safe.
++//  ::umask(OldUmask);
+ #endif
+ 
+ #ifdef LLVM_ON_WIN32
diff --git a/user/llvm6/disable-dlclose-test.patch b/user/llvm6/disable-dlclose-test.patch
new file mode 100644
index 000000000..b70cd4d4d
--- /dev/null
+++ b/user/llvm6/disable-dlclose-test.patch
@@ -0,0 +1,18 @@
+--- llvm-6.0.1.src/unittests/Support/DynamicLibrary/DynamicLibraryTest.cpp.old	2017-07-12 21:22:45.000000000 +0000
++++ llvm-6.0.1.src/unittests/Support/DynamicLibrary/DynamicLibraryTest.cpp	2018-09-13 04:43:37.240000000 +0000
+@@ -107,6 +107,7 @@
+   EXPECT_TRUE(DynamicLibrary::SearchOrder == DynamicLibrary::SO_Linker);
+ }
+ 
++#if 0
+ TEST(DynamicLibrary, Shutdown) {
+   std::string A("PipSqueak"), B, C("SecondLib");
+   std::vector<std::string> Order;
+@@ -162,6 +163,7 @@
+   EXPECT_EQ(Order.front(), "SecondLib");
+   EXPECT_EQ(Order.back(), "PipSqueak");
+ }
++#endif
+ 
+ #else
+ 
diff --git a/user/llvm6/llvm-fix-build-with-musl-libc.patch b/user/llvm6/llvm-fix-build-with-musl-libc.patch
new file mode 100644
index 000000000..6ee91ea44
--- /dev/null
+++ b/user/llvm6/llvm-fix-build-with-musl-libc.patch
@@ -0,0 +1,46 @@
+From 5c571082fdaf61f6df19d9b7137dc26d71334058 Mon Sep 17 00:00:00 2001
+From: Natanael Copa <ncopa@alpinelinux.org>
+Date: Thu, 18 Feb 2016 10:33:04 +0100
+Subject: [PATCH 2/3] Fix build with musl libc
+
+On musl libc the fopen64 and fopen are the same thing, but for
+compatibility they have a `#define fopen64 fopen`. Same applies for
+fseek64, fstat64, fstatvfs64, ftello64, lstat64, stat64 and tmpfile64.
+---
+ include/llvm/Analysis/TargetLibraryInfo.h | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/include/llvm/Analysis/TargetLibraryInfo.h b/include/llvm/Analysis/TargetLibraryInfo.h
+index 7becdf0..7f14427 100644
+--- a/include/llvm/Analysis/TargetLibraryInfo.h
++++ b/include/llvm/Analysis/TargetLibraryInfo.h
+@@ -18,6 +18,26 @@
+ #include "llvm/IR/Module.h"
+ #include "llvm/Pass.h"
+ 
++#undef fopen64
++#undef fseeko64
++#undef fstat64
++#undef fstatvfs64
++#undef ftello64
++#undef lstat64
++#undef stat64
++#undef tmpfile64
++#undef F_GETLK64
++#undef F_SETLK64
++#undef F_SETLKW64
++#undef flock64
++#undef open64
++#undef openat64
++#undef creat64
++#undef lockf64
++#undef posix_fadvise64
++#undef posix_fallocate64
++#undef off64_t
++
+ namespace llvm {
+ /// VecDesc - Describes a possible vectorization of a function.
+ /// Function 'VectorFnName' is equivalent to 'ScalarFnName' vectorized
+-- 
+2.7.3
+
diff --git a/user/llvm6/musl-ppc64-elfv2.patch b/user/llvm6/musl-ppc64-elfv2.patch
new file mode 100644
index 000000000..6fa65526b
--- /dev/null
+++ b/user/llvm6/musl-ppc64-elfv2.patch
@@ -0,0 +1,13 @@
+--- llvm-6.0.1.src/lib/Target/PowerPC/PPCTargetMachine.cpp.orig	2018-09-13 03:51:11.900000000 +0000
++++ llvm-6.0.1.src/lib/Target/PowerPC/PPCTargetMachine.cpp	2018-09-13 03:56:10.740000000 +0000
+@@ -191,6 +191,10 @@
+   if (TT.isMacOSX())
+     return PPCTargetMachine::PPC_ABI_UNKNOWN;
+ 
++  // musl uses ELFv2 ABI on both endians.
++  if (TT.getEnvironment() == Triple::Musl)
++    return PPCTargetMachine::PPC_ABI_ELFv2;
++
+   switch (TT.getArch()) {
+   case Triple::ppc64le:
+     return PPCTargetMachine::PPC_ABI_ELFv2;