main/llvm: upgrade to 3.6.0

move from testing
fixes #4068

19 files changed, 796 insertions, 297 deletions

diff --git a/main/llvm/APKBUILD b/main/llvm/APKBUILD
index 88d4be5a6..5f2cccae9 100644
--- a/main/llvm/APKBUILD
+++ b/main/llvm/APKBUILD
@@ -1,48 +1,91 @@
-# Contributor: William Pitcock <nenolod@dereferenced.org>
+# Contributor: Travis Tilley <ttilley@gmail.com>
 # Maintainer: William Pitcock <nenolod@dereferenced.org>
 pkgname=llvm
-pkgver=3.5.1
-pkgrel=0
+pkgver=3.6.0
+pkgrel=1
 pkgdesc="low level virtual machine compiler system"
-arch="x86 x86_64 armhf"
+arch="x86_64 armhf"
 url="http://llvm.org/"
 license="UOI-NCSA"
-depends=
+depends=""
 depends_dev="perl"
-makedepends="$depends_dev groff libffi-dev python chrpath"
+makedepends="$depends_dev make flex bison groff libffi-dev zlib-dev ncurses-dev libedit-dev python chrpath"
 install=
-subpackages="clang $pkgname-dev $pkgname-doc $pkgname-libs"
+subpackages="clang-libs:clang_libs clang
+	$pkgname-static $pkgname-dev $pkgname-doc $pkgname-libs"
 source="http://llvm.org/releases/$pkgver/llvm-$pkgver.src.tar.xz
 	http://llvm.org/releases/$pkgver/cfe-$pkgver.src.tar.xz
-	llvm-alpine-linux.patch
-	llvm-musl.patch
+	http://llvm.org/releases/$pkgver/compiler-rt-$pkgver.src.tar.xz
+	llvm-3.5-gcc-4.9.patch
+	llvm-3.6-musl-triple.patch
+	llvm-3.6-musl.patch
+	compiler-rt-3.6-musl-disable-sanitizers.patch
+	compiler-rt-3.6-musl-no-dlvsym.patch
+  clang-3.5-fix-stdint.patch
+	clang-3.6-fix-unwind-chain-inclusion.patch
+	clang-3.6-remove-lgcc-when-using-compiler-rt.patch
+  clang-3.6-add-alpine-distro.patch
+  clang-3.6-alpine-use-z-relro.patch
+	clang-3.6-alpine-hash-style-gnu.patch
+	clang-3.6-default-runtime-compiler-rt.patch
+  clang-3.6-musl-alpine-triple.patch
+  clang-3.6-musl-fix-dynamic-linker-paths.patch
+  clang-3.6-musl-use-init-array.patch
+	clang-3.6-musl-no-use-cxa-atexit.patch
 	"
 
-# clang hardcodes linker paths; and don't know of a fix like the --with-dynamic-linker
-# patch we use for gcc. So llvm-3.2-alpine-linux.patch needs to be updated if/when the
-# uClibc ABI version (as of uClibc 0.9.33.2, this is 0.9.32) increases.
-
 _builddir="$srcdir"/build
+
 _srcdir="$srcdir"/"$pkgname-$pkgver.src"
+_srcdir_clang="$_srcdir"/tools/clang
+_srcdir_compiler_rt="$_srcdir"/projects/compiler-rt
+# _srcdir_clang_extra="$_srcdir_clang"/tools/extra
+# _srcdir_lld="$_srcdir"/tools/lld
 
 prepare() {
-	msg "Preparing CLANG sources..."
+	msg "Preparing LLVM/CLANG sources..."
 	mv "$srcdir"/cfe-$pkgver.src \
-		"$srcdir"/$pkgname-$pkgver.src/tools/clang || return 1
+	  "$_srcdir_clang" || return 1
+	mv "$srcdir"/compiler-rt-$pkgver.src \
+	  "$_srcdir_compiler_rt" || return 1
+	# mv "$srcdir"/clang-tools-extra-$pkgver.src \
+	#   "$_srcdir_clang_extra" || return 1
+	# mv "$srcdir"/lld-$pkgver.src \
+	#   "$_srcdir_lld" || return 1
 
 	msg "Patching LLVM core..."
-	cd "$srcdir"/$pkgname-$pkgver.src || return 1
+	cd "$_srcdir" || return 1
 	update_config_sub || return 1
 	for i in $source; do
 		case $i in
-		*.patch)
+		llvm*.patch)
 			msg "Applying $i..."
 			patch -s -p1 -N -i "$srcdir"/$i || return 1
 			;;
 		esac
 	done
-	# fails to link
-	rm ./unittests/Support/formatted_raw_ostream_test.cpp
+
+  msg "Patching compiler-rt..."
+	cd "$_srcdir_compiler_rt" || return 1
+	for i in $source; do
+		case $i in
+		compiler-rt*.patch)
+		  msg "Applying $i..."
+			patch -s -p1 -N -i "$srcdir"/$i || return 1
+			;;
+		esac
+	done
+
+	msg "Patching clang..."
+	cd "$_srcdir_clang" || return 1
+	for i in $source; do
+		case $i in
+		clang-*.patch)
+		  msg "Applying $i..."
+			patch -s -p1 -N -i "$srcdir"/$i || return 1
+			;;
+		esac
+	done
 }
 
 build() {
@@ -55,6 +98,8 @@ build() {
 		../$pkgname-$pkgver.src/autoconf/config.guess \
 		|| return 1
 
+	export CPPFLAGS="${CPPFLAGS} $(pkg-config --cflags-only-I libffi) $(pkg-config --cflags-only-I libedit)"
+
 	$_srcdir/configure \
 		--build=$CBUILD \
 		--host=$CHOST \
@@ -62,16 +107,27 @@ build() {
 		--sysconfdir=/etc \
 		--mandir=/usr/share/man \
 		--infodir=/usr/share/info \
-		--enable-ffi \
 		--enable-shared \
 		--enable-optimized \
+		--enable-keep-symbols \
+		--enable-libedit \
+		--enable-terminfo \
+		--enable-libffi \
+		--enable-clang-plugin-support \
+		--enable-clang-static-analyzer \
+		--enable-docs \
+		--enable-threads \
+		--enable-zlib \
+		--enable-pic \
+		--enable-targets=x86,x86_64,arm,arm64,cpp,r600 \
+		--enable-bindings=none \
+		--disable-timestamps \
+		--disable-assertions \
+		--disable-expensive-checks \
+		--disable-libcpp \
+		--disable-werror \
 		|| return 1
 
-	# configure gets it wrong. We do have error_t
-	sed -i -e 's/.*undef HAVE_ERROR_T.*/#define HAVE_ERROR_T 1/'  \
-		-e '/define error_t/d' \
-		./include/llvm/Config/config.h || return 1
-
 	make || return 1
 }
 
@@ -83,18 +139,32 @@ package() {
 	mkdir -p "$pkgdir"/usr/share/doc
 	mv "$pkgdir"/usr/docs/llvm "$pkgdir"/usr/share/doc/ || return 1
 	rmdir "$pkgdir"/usr/docs || return 1
-	chrpath -d "$pkgdir"/usr/bin/* "$pkgdir"/usr/lib/*.so
+	chrpath -d "$pkgdir"/usr/bin/* "$pkgdir"/usr/lib/*.so || return 1
+
+	# remove erroneously installed example
+	rm "$pkgdir"/usr/lib/*LLVMHello.* || return 1
+
+	# remove executable bit from static libc
+	chmod -x "$pkgdir"/usr/lib/*.a
+}
+
+clang_libs() {
+	pkgdesc="Runtime library for clang"
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libclang.so "$subpkgdir"/usr/lib/
 }
 
 clang() {
 	pkgdesc="A C language family front-end for LLVM"
 	mkdir -p "$subpkgdir"/usr/bin \
-		"$subpkgdir"/usr/lib "$subpkgdir"/usr/share/clang
+		"$subpkgdir"/usr/lib "$subpkgdir"/usr/share/clang "$subpkgdir"/usr/include
 	mv "$pkgdir"/usr/bin/clang* "$pkgdir"/usr/bin/c-index-test \
 		"$subpkgdir"/usr/bin/ || return 1
 	mv "$pkgdir"/usr/lib/clang \
-		"$pkgdir"/usr/lib/libclang.so \
 		"$subpkgdir"/usr/lib/ || return 1
+	mv "$pkgdir"/usr/include/clang "$pkgdir"/usr/include/clang-c \
+		"$subpkgdir"/usr/include/ || return 1
+
 	cp -r "$_srcdir"/tools/clang/tools/scan-build "$subpkgdir"/usr/share/clang/scan-build
 	cp -r "$_srcdir"/tools/clang/tools/scan-view "$subpkgdir"/usr/share/clang/scan-view
 
@@ -102,21 +172,73 @@ clang() {
 	ln -s /usr/share/clang/scan-view/scan-view "$subpkgdir"/usr/bin/scan-view
 }
 
+static() {
+	pkgdesc="LLVM static libraries"
+	depends=
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/*.a "$subpkgdir"/usr/lib/
+}
+
 libs() {
 	pkgdesc="LLVM shared libraries"
 	mkdir -p "$subpkgdir"/usr/lib/
 	mv "$pkgdir"/usr/lib/*.so "$subpkgdir"/usr/lib/
 }
 
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-93f9532f8f7e6f1d8e5c1116907051cb  cfe-3.5.1.src.tar.xz
-6027b00815344fe834e3e3208fc471d9  llvm-alpine-linux.patch
-832e665e4972afb94fb6c976a7e35c69  llvm-musl.patch"
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+b1732677fb7641c13300a98bdd47d467  compiler-rt-3.6-musl-disable-sanitizers.patch
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+01eb6923bfa059e36ab39f44b2b6f03f  clang-3.6-musl-no-use-cxa-atexit.patch"
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+3d5c097ab1a4e4cfadeeb11aef66a90daaff11095dd3349f25832bedc317cac8  clang-3.6-musl-no-use-cxa-atexit.patch"
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+8cde42c93a1eda14d31f8e51ffd00d031f10071e9a4ee91fa9b08ef5b8e7bf9ec32ccd102b652e35e6f75d1339d934daa68185529ca6dba74e61f979a27498f3  compiler-rt-3.6-musl-no-dlvsym.patch
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+4cbabce34b7352bf5a043db3abe8931f58adce4fda80846c39b63399a025cbbac572052d3f0f598466bc9dca23b8ff88e655b10bf54b3870bc4e6f4225b6f558  clang-3.6-fix-unwind-chain-inclusion.patch
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+d3f6c97bdfccdab056aef149413108eb1fdf68d10782cdb1a50695a8e2e53432555a73c640ae635c697d41330c7869acc864b9f0fedbb1a4cba6d13785168564  clang-3.6-musl-fix-dynamic-linker-paths.patch
+4ae8409f3d03e8b30cbe33be507a43194ff6f3e6ce6467d3341ff08f08b12a22517a4c4b012f1b1029d956f8c486412353d937f316a7648a5be14549555aecae  clang-3.6-musl-use-init-array.patch
+20cddcf4289bb50bedac2636d32824860252617545d85c5cdc13f630a6f8be2be2a7e018401de4cec0a78bafc1f940ed8d565c2cda518b73290cf3ced4d0807e  clang-3.6-musl-no-use-cxa-atexit.patch"
diff --git a/main/llvm/clang-3.5-fix-stdint.patch b/main/llvm/clang-3.5-fix-stdint.patch
new file mode 100644
index 000000000..4db83d5b1
--- /dev/null
+++ b/main/llvm/clang-3.5-fix-stdint.patch
@@ -0,0 +1,29 @@
+diff --git a/lib/Headers/stdint.h b/lib/Headers/stdint.h
+index 0303db9..8ca28df 100644
+--- a/lib/Headers/stdint.h
++++ b/lib/Headers/stdint.h
+@@ -22,8 +22,6 @@
+  *
+ \*===----------------------------------------------------------------------===*/
+ 
+-#ifndef __CLANG_STDINT_H
+-#define __CLANG_STDINT_H
+ 
+ /* If we're hosted, fall back to the system's stdint.h, which might have
+  * additional definitions.
+@@ -72,6 +70,8 @@
+ # endif
+ 
+ #else
++#ifndef __CLANG_STDINT_H
++#define __CLANG_STDINT_H
+ 
+ /* C99 7.18.1.1 Exact-width integer types.
+  * C99 7.18.1.2 Minimum-width integer types.
+@@ -703,5 +703,5 @@ typedef __UINTMAX_TYPE__ uintmax_t;
+ #define INTMAX_C(v)   __INTN_C(__INTMAX_WIDTH__, v)
+ #define UINTMAX_C(v) __UINTN_C(__INTMAX_WIDTH__, v)
+ 
+-#endif /* __STDC_HOSTED__ */
+ #endif /* __CLANG_STDINT_H */
++#endif /* __STDC_HOSTED__ */
diff --git a/main/llvm/clang-3.6-add-alpine-distro.patch b/main/llvm/clang-3.6-add-alpine-distro.patch
new file mode 100644
index 000000000..9b959d335
--- /dev/null
+++ b/main/llvm/clang-3.6-add-alpine-distro.patch
@@ -0,0 +1,34 @@
+diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
+index f789fd5..6d75b4b 100644
+--- a/lib/Driver/ToolChains.cpp
++++ b/lib/Driver/ToolChains.cpp
+@@ -2667,12 +2673,13 @@ Tool *Solaris::buildLinker() const {
+   return new tools::solaris::Link(*this);
+ }
+
+ /// Distribution (very bare-bones at the moment).
+
+ enum Distro {
++  AlpineLinux,
+   ArchLinux,
+   DebianLenny,
+   DebianSqueeze,
+   DebianWheezy,
+   DebianJessie,
+   Exherbo,
+@@ -2778,12 +2785,15 @@ static Distro DetectDistro(llvm::Triple::ArchType Arch) {
+   if (llvm::sys::fs::exists("/etc/exherbo-release"))
+     return Exherbo;
+
+   if (llvm::sys::fs::exists("/etc/arch-release"))
+     return ArchLinux;
+
++  if (llvm::sys::fs::exists("/etc/alpine-release"))
++    return AlpineLinux;
++
+   return UnknownDistro;
+ }
+
+ /// \brief Get our best guess at the multiarch triple for a target.
+ ///
+ /// Debian-based systems are starting to use a multiarch setup where they use
diff --git a/main/llvm/clang-3.6-alpine-hash-style-gnu.patch b/main/llvm/clang-3.6-alpine-hash-style-gnu.patch
new file mode 100644
index 000000000..ee1f7c0f3
--- /dev/null
+++ b/main/llvm/clang-3.6-alpine-hash-style-gnu.patch
@@ -0,0 +1,12 @@
+diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
+index efa9541..1c6a6d5 100644
+--- a/lib/Driver/ToolChains.cpp
++++ b/lib/Driver/ToolChains.cpp
+@@ -2963,7 +2963,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+   // ABI requires a mapping between the GOT and the symbol table.
+   // Android loader does not support .gnu.hash.
+   if (!IsMips && !IsAndroid) {
+-    if (IsRedhat(Distro) || IsOpenSUSE(Distro) ||
++    if (IsRedhat(Distro) || IsOpenSUSE(Distro) || Distro == AlpineLinux ||
+         (IsUbuntu(Distro) && Distro >= UbuntuMaverick))
+       ExtraOpts.push_back("--hash-style=gnu");
diff --git a/main/llvm/clang-3.6-alpine-use-z-relro.patch b/main/llvm/clang-3.6-alpine-use-z-relro.patch
new file mode 100644
index 000000000..bd7cea08c
--- /dev/null
+++ b/main/llvm/clang-3.6-alpine-use-z-relro.patch
@@ -0,0 +1,19 @@
+diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
+index f789fd5..6d75b4b 100644
+--- a/lib/Driver/ToolChains.cpp
++++ b/lib/Driver/ToolChains.cpp
+@@ -2930,13 +2940,13 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+                          GCCInstallation.getTriple().str() + "/bin").str());
+
+   Linker = GetLinkerPath();
+
+   Distro Distro = DetectDistro(Arch);
+
+-  if (IsOpenSUSE(Distro) || IsUbuntu(Distro)) {
++  if (IsOpenSUSE(Distro) || IsUbuntu(Distro) || Distro == AlpineLinux) {
+     ExtraOpts.push_back("-z");
+     ExtraOpts.push_back("relro");
+   }
+
+   if (Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb)
+     ExtraOpts.push_back("-X");
diff --git a/main/llvm/clang-3.6-default-runtime-compiler-rt.patch b/main/llvm/clang-3.6-default-runtime-compiler-rt.patch
new file mode 100644
index 000000000..f4bf20cf9
--- /dev/null
+++ b/main/llvm/clang-3.6-default-runtime-compiler-rt.patch
@@ -0,0 +1,27 @@
+diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
+index 1c6a6d5..7377f72 100644
+--- a/lib/Driver/ToolChains.cpp
++++ b/lib/Driver/ToolChains.cpp
+@@ -3395,6 +3395,10 @ void Linux::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
+   }
+ }
+
++ToolChain::RuntimeLibType Linux::GetDefaultRuntimeLibType() const {
++  return ToolChain::RLT_CompilerRT;
++}
++
+ bool Linux::isPIEDefault() const {
+   return getSanitizerArgs().requiresPIE();
+ }
+diff --git a/lib/Driver/ToolChains.h b/lib/Driver/ToolChains.h
+index 47fb10d..88aee51 100644
+--- a/lib/Driver/ToolChains.h
++++ b/lib/Driver/ToolChains.h
+@@ -640,6 +640,7 @@ public:
+   void
+   AddClangCXXStdlibIncludeArgs(const llvm::opt::ArgList &DriverArgs,
+                                llvm::opt::ArgStringList &CC1Args) const override;
++  RuntimeLibType GetDefaultRuntimeLibType() const override;
+   bool isPIEDefault() const override;
+
+   std::string Linker;
diff --git a/main/llvm/clang-3.6-fix-unwind-chain-inclusion.patch b/main/llvm/clang-3.6-fix-unwind-chain-inclusion.patch
new file mode 100644
index 000000000..2ead52f0a
--- /dev/null
+++ b/main/llvm/clang-3.6-fix-unwind-chain-inclusion.patch
@@ -0,0 +1,33 @@
+diff --git a/lib/Headers/unwind.h b/lib/Headers/unwind.h
+index 90aca16..ef96969 100644
+--- a/lib/Headers/unwind.h
++++ b/lib/Headers/unwind.h
+@@ -23,9 +23,6 @@
+ 
+ /* See "Data Definitions for libgcc_s" in the Linux Standard Base.*/
+ 
+-#ifndef __CLANG_UNWIND_H
+-#define __CLANG_UNWIND_H
+-
+ #if defined(__APPLE__) && __has_include_next(<unwind.h>)
+ /* Darwin (from 11.x on) provide an unwind.h. If that's available,
+  * use it. libunwind wraps some of its definitions in #ifdef _GNU_SOURCE,
+@@ -53,6 +50,9 @@
+ # endif
+ #else
+ 
++#ifndef __CLANG_UNWIND_H
++#define __CLANG_UNWIND_H
++
+ #include <stdint.h>
+ 
+ #ifdef __cplusplus
+@@ -277,6 +277,7 @@ _Unwind_Ptr _Unwind_GetTextRelBase(struct _Unwind_Context *);
+ }
+ #endif
+ 
++#endif /* __CLANG_UNWIND_H */
++
+ #endif
+ 
+-#endif /* __CLANG_UNWIND_H */
diff --git a/main/llvm/clang-3.6-musl-alpine-triple.patch b/main/llvm/clang-3.6-musl-alpine-triple.patch
new file mode 100644
index 000000000..86cf2a478
--- /dev/null
+++ b/main/llvm/clang-3.6-musl-alpine-triple.patch
@@ -0,0 +1,46 @@
+diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
+index f789fd5..6d75b4b 100644
+--- a/lib/Driver/ToolChains.cpp
++++ b/lib/Driver/ToolChains.cpp
+@@ -1293,33 +1293,38 @@ bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const {
+                                                   "aarch64_be-linux-gnu" };
+
+   static const char *const ARMLibDirs[] = { "/lib" };
+   static const char *const ARMTriples[] = { "arm-linux-gnueabi",
+                                             "arm-linux-androideabi" };
+   static const char *const ARMHFTriples[] = { "arm-linux-gnueabihf",
+-                                              "armv7hl-redhat-linux-gnueabi" };
++                                              "armv7hl-redhat-linux-gnueabi",
++                                              "armv6-alpine-linux-musleabihf",
++                                              "armv7-alpine-linux-musleabihf"};
+   static const char *const ARMebLibDirs[] = { "/lib" };
+   static const char *const ARMebTriples[] = { "armeb-linux-gnueabi",
+                                               "armeb-linux-androideabi" };
+   static const char *const ARMebHFTriples[] = { "armeb-linux-gnueabihf",
+                                                 "armebv7hl-redhat-linux-gnueabi" };
+
+   static const char *const X86_64LibDirs[] = { "/lib64", "/lib" };
+   static const char *const X86_64Triples[] = {
+     "x86_64-linux-gnu", "x86_64-unknown-linux-gnu", "x86_64-pc-linux-gnu",
+     "x86_64-redhat-linux6E", "x86_64-redhat-linux", "x86_64-suse-linux",
+     "x86_64-manbo-linux-gnu", "x86_64-linux-gnu", "x86_64-slackware-linux",
+-    "x86_64-linux-android", "x86_64-unknown-linux"
++    "x86_64-linux-android", "x86_64-alpine-linux-musl", "x86_64-pc-linux-musl",
++    "x86_64-unknown-linux"
+   };
+   static const char *const X32LibDirs[] = { "/libx32" };
+   static const char *const X86LibDirs[] = { "/lib32", "/lib" };
+   static const char *const X86Triples[] = {
+     "i686-linux-gnu", "i686-pc-linux-gnu", "i486-linux-gnu", "i386-linux-gnu",
+     "i386-redhat-linux6E", "i686-redhat-linux", "i586-redhat-linux",
+     "i386-redhat-linux", "i586-suse-linux", "i486-slackware-linux",
+-    "i686-montavista-linux", "i686-linux-android", "i586-linux-gnu"
++    "i686-montavista-linux", "i686-linux-android", "i586-linux-gnu",
++    "i486-alpine-linux-musl", "i486-pc-linux-musl",
++    "i686-alpine-linux-musl", "i686-pc-linux-musl"
+   };
+
+   static const char *const MIPSLibDirs[] = { "/lib" };
+   static const char *const MIPSTriples[] = { "mips-linux-gnu",
+                                              "mips-mti-linux-gnu",
+                                              "mips-img-linux-gnu" };
diff --git a/main/llvm/clang-3.6-musl-fix-dynamic-linker-paths.patch b/main/llvm/clang-3.6-musl-fix-dynamic-linker-paths.patch
new file mode 100644
index 000000000..27c17728c
--- /dev/null
+++ b/main/llvm/clang-3.6-musl-fix-dynamic-linker-paths.patch
@@ -0,0 +1,58 @@
+diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
+index 75eef9e..3e71522 100644
+--- a/lib/Driver/Tools.cpp
++++ b/lib/Driver/Tools.cpp
+@@ -7282,8 +7282,14 @@ static std::string getLinuxDynamicLinker(const ArgList &Args,
+       return "/system/bin/linker64";
+     else
+       return "/system/bin/linker";
+-  } else if (ToolChain.getArch() == llvm::Triple::x86 ||
+-             ToolChain.getArch() == llvm::Triple::sparc)
++  } else if (ToolChain.getArch() == llvm::Triple::x86) {
++    switch (ToolChain.getTriple().getEnvironment()) {
++    case llvm::Triple::Musl:
++      return "/lib/ld-musl-i386.so.1";
++    default:
++      return "/lib/ld-linux.so.2";
++    }
++  } else if (ToolChain.getArch() == llvm::Triple::sparc)
+     return "/lib/ld-linux.so.2";
+   else if (ToolChain.getArch() == llvm::Triple::aarch64)
+     return "/lib/ld-linux-aarch64.so.1";
+@@ -7291,10 +7297,17 @@ static std::string getLinuxDynamicLinker(const ArgList &Args,
+     return "/lib/ld-linux-aarch64_be.so.1";
+   else if (ToolChain.getArch() == llvm::Triple::arm ||
+            ToolChain.getArch() == llvm::Triple::thumb) {
+-    if (ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
++    switch (ToolChain.getTriple().getEnvironment()) {
++    case llvm::Triple::Musl:
++    case llvm::Triple::MuslEABI:
++      return "/lib/ld-musl-arm.so.3";
++    case llvm::Triple::MuslEABIHF:
++      return "/lib/ld-musl-armhf.so.3";
++    case llvm::Triple::GNUEABIHF:
+       return "/lib/ld-linux-armhf.so.3";
+-    else
++    default:
+       return "/lib/ld-linux.so.3";
++    }
+   } else if (ToolChain.getArch() == llvm::Triple::armeb ||
+              ToolChain.getArch() == llvm::Triple::thumbeb) {
+     if (ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
+@@ -7339,8 +7352,14 @@ static std::string getLinuxDynamicLinker(const ArgList &Args,
+   else if (ToolChain.getArch() == llvm::Triple::x86_64 &&
+            ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUX32)
+     return "/libx32/ld-linux-x32.so.2";
+-  else
+-    return "/lib64/ld-linux-x86-64.so.2";
++  else {
++    switch (ToolChain.getTriple().getEnvironment()) {
++    case llvm::Triple::Musl:
++      return "/lib/ld-musl-x86_64.so.1";
++    default:
++      return "/lib64/ld-linux-x86-64.so.2";
++    }
++  }
+ }
+ 
+ static void AddRunTimeLibs(const ToolChain &TC, const Driver &D,
diff --git a/main/llvm/clang-3.6-musl-no-use-cxa-atexit.patch b/main/llvm/clang-3.6-musl-no-use-cxa-atexit.patch
new file mode 100644
index 000000000..d1c23b099
--- /dev/null
+++ b/main/llvm/clang-3.6-musl-no-use-cxa-atexit.patch
@@ -0,0 +1,14 @@
+diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
+index 08e4439..4e5a594 100644
+--- a/lib/Driver/Tools.cpp
++++ b/lib/Driver/Tools.cpp
+@@ -3978,7 +3978,8 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
+                     options::OPT_fno_use_cxa_atexit,
+                     !IsWindowsCygnus && !IsWindowsGNU &&
+                     getToolChain().getArch() != llvm::Triple::hexagon &&
+-                    getToolChain().getArch() != llvm::Triple::xcore) ||
++                    getToolChain().getArch() != llvm::Triple::xcore &&
++                    getToolChain().getTriple().getEnvironment() != llvm::Triple::Musl) ||
+       KernelOrKext)
+     CmdArgs.push_back("-fno-use-cxa-atexit");
+ 
diff --git a/main/llvm/clang-3.6-musl-use-init-array.patch b/main/llvm/clang-3.6-musl-use-init-array.patch
new file mode 100644
index 000000000..ae632aabf
--- /dev/null
+++ b/main/llvm/clang-3.6-musl-use-init-array.patch
@@ -0,0 +1,20 @@
+diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
+index f789fd5..6d75b4b 100644
+--- a/lib/Driver/ToolChains.cpp
++++ b/lib/Driver/ToolChains.cpp
+@@ -2080,13 +2085,14 @@ void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs,
+   const Generic_GCC::GCCVersion &V = GCCInstallation.getVersion();
+   bool UseInitArrayDefault =
+       getTriple().getArch() == llvm::Triple::aarch64 ||
+       getTriple().getArch() == llvm::Triple::aarch64_be ||
+       (getTriple().getOS() == llvm::Triple::Linux &&
+        (!V.isOlderThan(4, 7, 0) ||
+-        getTriple().getEnvironment() == llvm::Triple::Android));
++        getTriple().getEnvironment() == llvm::Triple::Android ||
++        getTriple().getEnvironment() == llvm::Triple::Musl));
+
+   if (DriverArgs.hasFlag(options::OPT_fuse_init_array,
+                          options::OPT_fno_use_init_array,
+                          UseInitArrayDefault))
+     CC1Args.push_back("-fuse-init-array");
+ }
diff --git a/main/llvm/clang-3.6-remove-lgcc-when-using-compiler-rt.patch b/main/llvm/clang-3.6-remove-lgcc-when-using-compiler-rt.patch
new file mode 100644
index 000000000..15cfe2f8a
--- /dev/null
+++ b/main/llvm/clang-3.6-remove-lgcc-when-using-compiler-rt.patch
@@ -0,0 +1,29 @@
+diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
+index 75eef9e..08e4439 100644
+--- a/lib/Driver/Tools.cpp
++++ b/lib/Driver/Tools.cpp
+@@ -2154,18 +2154,18 @@ static SmallString<128> getCompilerRT(const ToolChain &TC, StringRef Component,
+ // FIXME: Make sure we can also emit shared objects if they're requested
+ // and available, check for possible errors, etc.
+ static void addClangRT(const ToolChain &TC, const ArgList &Args,
+                        ArgStringList &CmdArgs) {
+   CmdArgs.push_back(Args.MakeArgString(getCompilerRT(TC, "builtins")));
+
+-  if (!TC.getTriple().isOSWindows()) {
+-    // FIXME: why do we link against gcc when we are using compiler-rt?
+-    CmdArgs.push_back("-lgcc_s");
+-    if (TC.getDriver().CCCIsCXX())
+-      CmdArgs.push_back("-lgcc_eh");
+-  }
++  // if (!TC.getTriple().isOSWindows()) {
++  //   // FIXME: why do we link against gcc when we are using compiler-rt?
++  //   CmdArgs.push_back("-lgcc_s");
++  //   if (TC.getDriver().CCCIsCXX())
++  //     CmdArgs.push_back("-lgcc_eh");
++  // }
+ }
+
+ static void addProfileRT(const ToolChain &TC, const ArgList &Args,
+                          ArgStringList &CmdArgs) {
+   if (!(Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs,
+                      false) ||
diff --git a/main/llvm/compiler-rt-3.6-musl-disable-sanitizers.patch b/main/llvm/compiler-rt-3.6-musl-disable-sanitizers.patch
new file mode 100644
index 000000000..c37490ca3
--- /dev/null
+++ b/main/llvm/compiler-rt-3.6-musl-disable-sanitizers.patch
@@ -0,0 +1,34 @@
+Unfortunately, the sanitizer functionality depends on a variety of GNU
+extensions and headers that simply don't exist on a musl based system. Fixing
+this would be a fairly complicated task, though some inspiration could be taken
+from dpkg's static 'libcompat' approach of supplying equivalent functionality
+that might be missing. A task for another day perhaps.
+
+diff --git a/lib/Makefile.mk b/lib/Makefile.mk
+index ed9690d..aacb2b1 100644
+--- a/lib/Makefile.mk
++++ b/lib/Makefile.mk
+@@ -7,16 +7,16 @@
+ #
+ #===------------------------------------------------------------------------===#
+
+ SubDirs :=
+
+ # Add submodules.
+-SubDirs += asan
++# SubDirs += asan
+ SubDirs += builtins
+-SubDirs += dfsan
++# SubDirs += dfsan
+ SubDirs += interception
+-SubDirs += lsan
+-SubDirs += msan
++# SubDirs += lsan
++# SubDirs += msan
+ SubDirs += profile
+-SubDirs += sanitizer_common
+-SubDirs += tsan
+-SubDirs += ubsan
++# SubDirs += sanitizer_common
++# SubDirs += tsan
++# SubDirs += ubsan
diff --git a/main/llvm/compiler-rt-3.6-musl-no-dlvsym.patch b/main/llvm/compiler-rt-3.6-musl-no-dlvsym.patch
new file mode 100644
index 000000000..444f4e073
--- /dev/null
+++ b/main/llvm/compiler-rt-3.6-musl-no-dlvsym.patch
@@ -0,0 +1,19 @@
+diff --git a/lib/interception/interception_linux.cc b/lib/interception/interception_linux.cc
+index 6e908ac..7fcf2a6 100644
+--- a/lib/interception/interception_linux.cc
++++ b/lib/interception/interception_linux.cc
+@@ -21,13 +21,13 @@ namespace __interception {
+ bool GetRealFunctionAddress(const char *func_name, uptr *func_addr,
+     uptr real, uptr wrapper) {
+   *func_addr = (uptr)dlsym(RTLD_NEXT, func_name);
+   return real == wrapper;
+ }
+
+-#if !defined(__ANDROID__)  // android does not have dlvsym
++#if 0 // !defined(__ANDROID__)  // android does not have dlvsym
+ void *GetFuncAddrVer(const char *func_name, const char *ver) {
+   return dlvsym(RTLD_NEXT, func_name, ver);
+ }
+ #endif  // !defined(__ANDROID__)
+
+ }  // namespace __interception
diff --git a/main/llvm/llvm-3.5-gcc-4.9.patch b/main/llvm/llvm-3.5-gcc-4.9.patch
new file mode 100644
index 000000000..f60c4df72
--- /dev/null
+++ b/main/llvm/llvm-3.5-gcc-4.9.patch
@@ -0,0 +1,43 @@
+commit 080fb498017d17af2e4d7563608c7d8a848f20da
+Author: Sanjoy Das <sanjoy at azulsystems.com>
+Date:   Thu Jun 19 15:38:02 2014 -0700
+
+    Fix the --enable-shared build.
+
+    Currently a build configured with ./configure --enable-shared breaks
+    with an undefined "llvm::cl::parser<llvm::PassInfo
+    const*>::getOption(unsigned int) const" symbol when linking opt.  This
+    body for this symbol gets emitted into Pass.o (along with the destructor
+    for PassNameParser), but gets linked into libLLVM-3.5svn.so with local
+    visibility, causing the link error.
+
+    This fix uses the existing EXTERN_TEMPLATE machinery to force a globally
+    visible definition for the functions in parser<const PassInfo *> into
+    Pass.o.
+
+diff --git a/include/llvm/IR/LegacyPassNameParser.h b/include/llvm/IR/LegacyPassNameParser.h
+index e2e4912..a07e3fd 100644
+--- a/include/llvm/IR/LegacyPassNameParser.h
++++ b/include/llvm/IR/LegacyPassNameParser.h
+@@ -95,6 +95,8 @@ private:
+   }
+ };
+
++EXTERN_TEMPLATE_INSTANTIATION(class cl::parser<const PassInfo *>);
++
+ ///===----------------------------------------------------------------------===//
+ /// FilteredPassNameParser class - Make use of the pass registration
+ /// mechanism to automatically add a command line argument to opt for
+diff --git a/lib/IR/Pass.cpp b/lib/IR/Pass.cpp
+index 91d86ae..00ce223 100644
+--- a/lib/IR/Pass.cpp
++++ b/lib/IR/Pass.cpp
+@@ -234,6 +234,8 @@ PassNameParser::~PassNameParser() {
+   // attempting to remove the registration listener is an error.
+ }
+
++TEMPLATE_INSTANTIATION(class cl::parser<const PassInfo *>);
++
+ //===----------------------------------------------------------------------===//
+ //   AnalysisUsage Class Implementation
+ //
diff --git a/main/llvm/llvm-3.6-musl-triple.patch b/main/llvm/llvm-3.6-musl-triple.patch
new file mode 100644
index 000000000..08919c680
--- /dev/null
+++ b/main/llvm/llvm-3.6-musl-triple.patch
@@ -0,0 +1,107 @@
+diff --git a/include/llvm/ADT/Triple.h b/include/llvm/ADT/Triple.h
+index 8a68599..072623c 100644
+--- a/include/llvm/ADT/Triple.h
++++ b/include/llvm/ADT/Triple.h
+@@ -151,12 +151,16 @@ public:
+     GNUX32,
+     CODE16,
+     EABI,
+     EABIHF,
+     Android,
+
++    Musl,
++    MuslEABI,
++    MuslEABIHF,
++
+     MSVC,
+     Itanium,
+     Cygnus,
+   };
+   enum ObjectFormatType {
+     UnknownObjectFormat,
+diff --git a/lib/Support/Triple.cpp b/lib/Support/Triple.cpp
+index 0838e90..4be78e5 100644
+--- a/lib/Support/Triple.cpp
++++ b/lib/Support/Triple.cpp
+@@ -172,12 +172,15 @@ const char *Triple::getEnvironmentTypeName(EnvironmentType Kind) {
+   case GNUEABIHF: return "gnueabihf";
+   case GNUEABI: return "gnueabi";
+   case GNUX32: return "gnux32";
+   case CODE16: return "code16";
+   case EABI: return "eabi";
+   case EABIHF: return "eabihf";
++  case Musl: return "musl";
++  case MuslEABIHF: return "musleabihf";
++  case MuslEABI: return "musleabi";
+   case Android: return "android";
+   case MSVC: return "msvc";
+   case Itanium: return "itanium";
+   case Cygnus: return "cygnus";
+   }
+
+@@ -372,12 +375,15 @@ static Triple::EnvironmentType parseEnvironment(StringRef EnvironmentName) {
+     .StartsWith("gnueabihf", Triple::GNUEABIHF)
+     .StartsWith("gnueabi", Triple::GNUEABI)
+     .StartsWith("gnux32", Triple::GNUX32)
+     .StartsWith("code16", Triple::CODE16)
+     .StartsWith("gnu", Triple::GNU)
+     .StartsWith("android", Triple::Android)
++    .StartsWith("musleabihf", Triple::MuslEABIHF)
++    .StartsWith("musleabi", Triple::MuslEABI)
++    .StartsWith("musl", Triple::Musl)
+     .StartsWith("msvc", Triple::MSVC)
+     .StartsWith("itanium", Triple::Itanium)
+     .StartsWith("cygnus", Triple::Cygnus)
+     .Default(Triple::UnknownEnvironment);
+ }
+
+
+diff --git a/lib/Target/ARM/ARMSubtarget.h b/lib/Target/ARM/ARMSubtarget.h
+index dbacd4d..c81e620 100644
+--- a/lib/Target/ARM/ARMSubtarget.h
++++ b/lib/Target/ARM/ARMSubtarget.h
+@@ -366,22 +366,25 @@ public:
+
+   // ARM Targets that support EHABI exception handling standard
+   // Darwin uses SjLj. Other targets might need more checks.
+   bool isTargetEHABICompatible() const {
+     return (TargetTriple.getEnvironment() == Triple::EABI ||
+             TargetTriple.getEnvironment() == Triple::GNUEABI ||
++            TargetTriple.getEnvironment() == Triple::MuslEABI ||
+             TargetTriple.getEnvironment() == Triple::EABIHF ||
+             TargetTriple.getEnvironment() == Triple::GNUEABIHF ||
++            TargetTriple.getEnvironment() == Triple::MuslEABIHF ||
+             TargetTriple.getEnvironment() == Triple::Android) &&
+            !isTargetDarwin() && !isTargetWindows();
+   }
+
+   bool isTargetHardFloat() const {
+     // FIXME: this is invalid for WindowsCE
+     return TargetTriple.getEnvironment() == Triple::GNUEABIHF ||
+            TargetTriple.getEnvironment() == Triple::EABIHF ||
++           TargetTriple.getEnvironment() == Triple::MuslEABIHF ||
+            isTargetWindows();
+   }
+   bool isTargetAndroid() const {
+     return TargetTriple.getEnvironment() == Triple::Android;
+   }
+
+diff --git a/lib/Target/ARM/ARMTargetMachine.cpp b/lib/Target/ARM/ARMTargetMachine.cpp
+index 7a8181b..ce5ceb9 100644
+--- a/lib/Target/ARM/ARMTargetMachine.cpp
++++ b/lib/Target/ARM/ARMTargetMachine.cpp
+@@ -84,12 +84,14 @@ computeTargetABI(const Triple &TT, StringRef CPU,
+     switch (TT.getEnvironment()) {
+     case llvm::Triple::Android:
+     case llvm::Triple::GNUEABI:
+     case llvm::Triple::GNUEABIHF:
+     case llvm::Triple::EABIHF:
+     case llvm::Triple::EABI:
++    case llvm::Triple::MuslEABI:
++    case llvm::Triple::MuslEABIHF:
+       TargetABI = ARMBaseTargetMachine::ARM_ABI_AAPCS;
+       break;
+     case llvm::Triple::GNU:
+       TargetABI = ARMBaseTargetMachine::ARM_ABI_APCS;
+       break;
+     default:
diff --git a/main/llvm/llvm-3.6-musl.patch b/main/llvm/llvm-3.6-musl.patch
new file mode 100644
index 000000000..ba3c49f78
--- /dev/null
+++ b/main/llvm/llvm-3.6-musl.patch
@@ -0,0 +1,110 @@
+diff --git a/include/llvm/Target/TargetLibraryInfo.h b/include/llvm/Target/TargetLibraryInfo.h
+index 46f87b9..41ac5fd 100644
+--- a/include/llvm/Target/TargetLibraryInfo.h
++++ b/include/llvm/Target/TargetLibraryInfo.h
+@@ -10,12 +10,21 @@
+ #ifndef LLVM_TARGET_TARGETLIBRARYINFO_H
+ #define LLVM_TARGET_TARGETLIBRARYINFO_H
+
+ #include "llvm/ADT/DenseMap.h"
+ #include "llvm/Pass.h"
+
++#undef fopen64
++#undef fseeko64
++#undef fstat64
++#undef fstatvfs64
++#undef ftello64
++#undef lstat64
++#undef stat64
++#undef tmpfile64
++
+ namespace llvm {
+   class Triple;
+
+   namespace LibFunc {
+     enum Func {
+       /// int _IO_getc(_IO_FILE * __fp);
+diff --git a/lib/Support/DynamicLibrary.cpp b/lib/Support/DynamicLibrary.cpp
+index d2b551e..4634a13 100644
+--- a/lib/Support/DynamicLibrary.cpp
++++ b/lib/Support/DynamicLibrary.cpp
+@@ -135,13 +135,13 @@ void* DynamicLibrary::SearchForAddressOfSymbol(const char *symbolName) {
+
+   if (void *Result = llvm::SearchForAddressOfSpecialSymbol(symbolName))
+     return Result;
+
+ // This macro returns the address of a well-known, explicit symbol
+ #define EXPLICIT_SYMBOL(SYM) \
+-   if (!strcmp(symbolName, #SYM)) return &SYM
++   if (!strcmp(symbolName, #SYM)) return (void *) &SYM
+
+ // On linux we have a weird situation. The stderr/out/in symbols are both
+ // macros and global variables because of standards requirements. So, we
+ // boldly use the EXPLICIT_SYMBOL macro without checking for a #define first.
+ #if defined(__linux__) and !defined(__ANDROID__)
+   {
+diff --git a/lib/Support/Unix/Signals.inc b/lib/Support/Unix/Signals.inc
+index e8f4643..8a320ef 100644
+--- a/lib/Support/Unix/Signals.inc
++++ b/lib/Support/Unix/Signals.inc
+@@ -413,13 +413,13 @@ static bool printSymbolizedStackTrace(void **StackTrace, int Depth, FILE *FD) {
+ // PrintStackTrace - In the case of a program crash or fault, print out a stack
+ // trace so that the user has an indication of why and where we died.
+ //
+ // On glibc systems we have the 'backtrace' function, which works nicely, but
+ // doesn't demangle symbols.
+ void llvm::sys::PrintStackTrace(FILE *FD) {
+-#if defined(HAVE_BACKTRACE) && defined(ENABLE_BACKTRACES)
++#if defined(__GLIBC__) && defined(HAVE_BACKTRACE) && defined(ENABLE_BACKTRACES)
+   static void* StackTrace[256];
+   // Use backtrace() to output a backtrace on Linux systems with glibc.
+   int depth = backtrace(StackTrace,
+                         static_cast<int>(array_lengthof(StackTrace)));
+   if (printSymbolizedStackTrace(StackTrace, depth, FD))
+     return;
+diff --git a/lib/Target/TargetLibraryInfo.cpp b/lib/Target/TargetLibraryInfo.cpp
+index c0abdbd..ed908f8 100644
+--- a/lib/Target/TargetLibraryInfo.cpp
++++ b/lib/Target/TargetLibraryInfo.cpp
+@@ -661,20 +661,21 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T,
+     break;
+   default:
+     TLI.setUnavailable(LibFunc::ffsll);
+   }
+
+   // The following functions are available on at least Linux:
+-  if (!T.isOSLinux()) {
++  if (!T.isOSLinux())
++    TLI.setUnavailable(LibFunc::memalign);
++  if (1 /*!T.isGlibc()*/) {
+     TLI.setUnavailable(LibFunc::dunder_strdup);
+     TLI.setUnavailable(LibFunc::dunder_strtok_r);
+     TLI.setUnavailable(LibFunc::dunder_isoc99_scanf);
+     TLI.setUnavailable(LibFunc::dunder_isoc99_sscanf);
+     TLI.setUnavailable(LibFunc::under_IO_getc);
+     TLI.setUnavailable(LibFunc::under_IO_putc);
+-    TLI.setUnavailable(LibFunc::memalign);
+     TLI.setUnavailable(LibFunc::fopen64);
+     TLI.setUnavailable(LibFunc::fseeko64);
+     TLI.setUnavailable(LibFunc::fstat64);
+     TLI.setUnavailable(LibFunc::fstatvfs64);
+     TLI.setUnavailable(LibFunc::ftello64);
+     TLI.setUnavailable(LibFunc::lstat64);
+diff --git a/utils/unittest/googletest/src/gtest.cc b/utils/unittest/googletest/src/gtest.cc
+index bf850c6..9e9088c 100644
+--- a/utils/unittest/googletest/src/gtest.cc
++++ b/utils/unittest/googletest/src/gtest.cc
+@@ -117,12 +117,13 @@
+ #if GTEST_HAS_EXCEPTIONS
+ # include <stdexcept>
+ #endif
+
+ #if GTEST_CAN_STREAM_RESULTS_
+ # include <arpa/inet.h>  // NOLINT
++# include <sys/socket.h>  // NOLINT
+ # include <netdb.h>  // NOLINT
+ #endif
+
+ // Indicates that this translation unit is part of Google Test's
+ // implementation.  It must come before gtest-internal-inl.h is
+ // included, or there will be a compiler error.  This trick is to
diff --git a/main/llvm/llvm-alpine-linux.patch b/main/llvm/llvm-alpine-linux.patch
deleted file mode 100644
index d09691673..000000000
--- a/main/llvm/llvm-alpine-linux.patch
+++ /dev/null
@@ -1,182 +0,0 @@
-diff -ru llvm-3.5.0.src.orig/include/llvm/ADT/Triple.h llvm-3.5.0.src/include/llvm/ADT/Triple.h
---- llvm-3.5.0.src.orig/include/llvm/ADT/Triple.h	2014-07-18 17:28:19.000000000 -0300
-+++ llvm-3.5.0.src/include/llvm/ADT/Triple.h	2014-11-12 14:44:41.738448045 -0200
-@@ -149,6 +149,10 @@
-     EABIHF,
-     Android,
- 
-+    Musl,
-+    MuslEABI,
-+    MuslEABIHF,
-+
-     MSVC,
-     Itanium,
-     Cygnus,
-Only in llvm-3.5.0.src/include/llvm/ADT: Triple.h.orig
-diff -ru llvm-3.5.0.src.orig/lib/Support/Triple.cpp llvm-3.5.0.src/lib/Support/Triple.cpp
---- llvm-3.5.0.src.orig/lib/Support/Triple.cpp	2014-07-18 17:28:19.000000000 -0300
-+++ llvm-3.5.0.src/lib/Support/Triple.cpp	2014-11-12 14:47:06.565122146 -0200
-@@ -168,6 +168,9 @@
-   case CODE16: return "code16";
-   case EABI: return "eabi";
-   case EABIHF: return "eabihf";
-+  case Musl: return "musl";
-+  case MuslEABI: return "musleabi";
-+  case MuslEABIHF: return "musleabihf";
-   case Android: return "android";
-   case MSVC: return "msvc";
-   case Itanium: return "itanium";
-@@ -344,6 +347,9 @@
-     .StartsWith("gnux32", Triple::GNUX32)
-     .StartsWith("code16", Triple::CODE16)
-     .StartsWith("gnu", Triple::GNU)
-+    .StartsWith("musl", Triple::Musl)
-+    .StartsWith("musleabi", Triple::MuslEABI)
-+    .StartsWith("musleabihf", Triple::MuslEABIHF)
-     .StartsWith("android", Triple::Android)
-     .StartsWith("msvc", Triple::MSVC)
-     .StartsWith("itanium", Triple::Itanium)
-Only in llvm-3.5.0.src/lib/Support: Triple.cpp.orig
-diff -ru llvm-3.5.0.src.orig/lib/Target/ARM/ARMSubtarget.cpp llvm-3.5.0.src/lib/Target/ARM/ARMSubtarget.cpp
---- llvm-3.5.0.src.orig/lib/Target/ARM/ARMSubtarget.cpp	2014-07-16 23:13:31.000000000 -0300
-+++ llvm-3.5.0.src/lib/Target/ARM/ARMSubtarget.cpp	2014-11-12 14:50:40.025133104 -0200
-@@ -273,6 +273,8 @@
-     case Triple::EABIHF:
-     case Triple::GNUEABI:
-     case Triple::GNUEABIHF:
-+    case Triple::MuslEABI:
-+    case Triple::MuslEABIHF:
-       TargetABI = ARM_ABI_AAPCS;
-       break;
-     default:
-diff -ru llvm-3.5.0.src.orig/lib/Target/ARM/ARMSubtarget.h llvm-3.5.0.src/lib/Target/ARM/ARMSubtarget.h
---- llvm-3.5.0.src.orig/lib/Target/ARM/ARMSubtarget.h	2014-07-16 23:13:31.000000000 -0300
-+++ llvm-3.5.0.src/lib/Target/ARM/ARMSubtarget.h	2014-11-12 14:53:36.571808822 -0200
-@@ -372,8 +372,10 @@
-   bool isTargetEHABICompatible() const {
-     return (TargetTriple.getEnvironment() == Triple::EABI ||
-             TargetTriple.getEnvironment() == Triple::GNUEABI ||
-+            TargetTriple.getEnvironment() == Triple::MuslEABI ||
-             TargetTriple.getEnvironment() == Triple::EABIHF ||
-             TargetTriple.getEnvironment() == Triple::GNUEABIHF ||
-+            TargetTriple.getEnvironment() == Triple::MuslEABIHF ||
-             TargetTriple.getEnvironment() == Triple::Android) &&
-            !isTargetDarwin() && !isTargetWindows();
-   }
-diff -ru llvm-3.5.0.src.orig/tools/clang/lib/Driver/ToolChains.cpp llvm-3.5.0.src/tools/clang/lib/Driver/ToolChains.cpp
---- llvm-3.5.0.src.orig/tools/clang/lib/Driver/ToolChains.cpp	2014-08-27 23:07:31.000000000 -0300
-+++ llvm-3.5.0.src/tools/clang/lib/Driver/ToolChains.cpp	2014-11-12 15:09:14.805190323 -0200
-@@ -1324,7 +1324,9 @@
-   static const char *const ARMTriples[] = { "arm-linux-gnueabi",
-                                             "arm-linux-androideabi" };
-   static const char *const ARMHFTriples[] = { "arm-linux-gnueabihf",
--                                              "armv7hl-redhat-linux-gnueabi" };
-+                                              "armv7hl-redhat-linux-gnueabi",
-+					      "armv6-alpine-linux-muslgnueabihf",
-+					      "armv7-alpine-linux-muslgnueabihf" };
-   static const char *const ARMebLibDirs[] = { "/lib" };
-   static const char *const ARMebTriples[] = { "armeb-linux-gnueabi",
-                                               "armeb-linux-androideabi" };
-@@ -1336,7 +1338,7 @@
-     "x86_64-linux-gnu", "x86_64-unknown-linux-gnu", "x86_64-pc-linux-gnu",
-     "x86_64-redhat-linux6E", "x86_64-redhat-linux", "x86_64-suse-linux",
-     "x86_64-manbo-linux-gnu", "x86_64-linux-gnu", "x86_64-slackware-linux",
--    "x86_64-linux-android", "x86_64-unknown-linux"
-+    "x86_64-linux-android", "x86_64-alpine-linux-musl", "x86_64-unknown-linux"
-   };
-   static const char *const X32LibDirs[] = { "/libx32" };
-   static const char *const X86LibDirs[] = { "/lib32", "/lib" };
-@@ -1344,7 +1346,8 @@
-     "i686-linux-gnu", "i686-pc-linux-gnu", "i486-linux-gnu", "i386-linux-gnu",
-     "i386-redhat-linux6E", "i686-redhat-linux", "i586-redhat-linux",
-     "i386-redhat-linux", "i586-suse-linux", "i486-slackware-linux",
--    "i686-montavista-linux", "i686-linux-android", "i586-linux-gnu"
-+    "i686-montavista-linux", "i686-linux-android", "i586-linux-gnu",
-+    "i486-alpine-linux-musl"
-   };
- 
-   static const char *const MIPSLibDirs[] = { "/lib" };
-@@ -2777,6 +2780,7 @@
- /// Distribution (very bare-bones at the moment).
- 
- enum Distro {
-+  AlpineLinux,
-   ArchLinux,
-   DebianLenny,
-   DebianSqueeze,
-@@ -2888,6 +2892,9 @@
-   if (llvm::sys::fs::exists("/etc/arch-release"))
-     return ArchLinux;
- 
-+  if (llvm::sys::fs::exists("/etc/alpine-release"))
-+    return AlpineLinux;
-+
-   return UnknownDistro;
- }
- 
-@@ -3042,7 +3049,7 @@
- 
-   Distro Distro = DetectDistro(Arch);
- 
--  if (IsOpenSUSE(Distro) || IsUbuntu(Distro)) {
-+  if (IsOpenSUSE(Distro) || IsUbuntu(Distro) || Distro == AlpineLinux) {
-     ExtraOpts.push_back("-z");
-     ExtraOpts.push_back("relro");
-   }
-diff -ru llvm-3.5.0.src.orig/tools/clang/lib/Driver/Tools.cpp llvm-3.5.0.src/tools/clang/lib/Driver/Tools.cpp
---- llvm-3.5.0.src.orig/tools/clang/lib/Driver/Tools.cpp	2014-08-07 07:51:51.000000000 -0300
-+++ llvm-3.5.0.src/tools/clang/lib/Driver/Tools.cpp	2014-11-12 15:11:31.901864030 -0200
-@@ -7182,8 +7182,14 @@
-       return "/system/bin/linker64";
-     else
-       return "/system/bin/linker";
--  } else if (ToolChain.getArch() == llvm::Triple::x86 ||
--             ToolChain.getArch() == llvm::Triple::sparc)
-+  } else if (ToolChain.getArch() == llvm::Triple::x86) {
-+    switch (ToolChain.getTriple().getEnvironment()) {
-+    case llvm::Triple::Musl:
-+      return "/lib/ld-musl-i386.so.1";
-+    default:
-+      return "/lib/ld-linux.so.2";
-+    }
-+  } else if (ToolChain.getArch() == llvm::Triple::sparc)
-     return "/lib/ld-linux.so.2";
-   else if (ToolChain.getArch() == llvm::Triple::aarch64 ||
-            ToolChain.getArch() == llvm::Triple::arm64)
-@@ -7193,10 +7199,17 @@
-     return "/lib/ld-linux-aarch64_be.so.1";
-   else if (ToolChain.getArch() == llvm::Triple::arm ||
-            ToolChain.getArch() == llvm::Triple::thumb) {
--    if (ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
-+    switch (ToolChain.getTriple().getEnvironment()) {
-+    case llvm::Triple::Musl:
-+    case llvm::Triple::MuslEABI:
-+      return "/lib/ld-musl-arm.so.3";
-+    case llvm::Triple::MuslEABIHF:
-+      return "/lib/ld-musl-armhf.so.3";
-+    case llvm::Triple::GNUEABIHF:
-       return "/lib/ld-linux-armhf.so.3";
--    else
-+    default:
-       return "/lib/ld-linux.so.3";
-+    }
-   } else if (ToolChain.getArch() == llvm::Triple::armeb ||
-              ToolChain.getArch() == llvm::Triple::thumbeb) {
-     if (ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
-@@ -7227,8 +7240,14 @@
-   else if (ToolChain.getArch() == llvm::Triple::x86_64 &&
-            ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUX32)
-     return "/libx32/ld-linux-x32.so.2";
--  else
--    return "/lib64/ld-linux-x86-64.so.2";
-+  else {
-+    switch (ToolChain.getTriple().getEnvironment()) {
-+    case llvm::Triple::Musl:
-+      return "/lib/ld-musl-x86_64.so.1";
-+    default:
-+      return "/lib64/ld-linux-x86-64.so.2";
-+    }
-+  }
- }
- 
- static void AddRunTimeLibs(const ToolChain &TC, const Driver &D,
diff --git a/main/llvm/llvm-musl.patch b/main/llvm/llvm-musl.patch
deleted file mode 100644
index b6a3e216f..000000000
--- a/main/llvm/llvm-musl.patch
+++ /dev/null
@@ -1,75 +0,0 @@
-diff -ru llvm-3.5.0.src.orig/include/llvm/Target/TargetLibraryInfo.h llvm-3.5.0.src/include/llvm/Target/TargetLibraryInfo.h
---- llvm-3.5.0.src.orig/include/llvm/Target/TargetLibraryInfo.h	2014-11-13 12:51:53.341455401 +0000
-+++ llvm-3.5.0.src/include/llvm/Target/TargetLibraryInfo.h	2014-11-13 12:52:35.078889077 +0000
-@@ -13,6 +13,15 @@
- #include "llvm/ADT/DenseMap.h"
- #include "llvm/Pass.h"
- 
-+#undef fopen64
-+#undef fseeko64
-+#undef fstat64
-+#undef fstatvfs64
-+#undef ftello64
-+#undef lstat64
-+#undef stat64
-+#undef tmpfile64
-+
- namespace llvm {
-   class Triple;
- 
-diff -ru llvm-3.5.0.src.orig/lib/Support/DynamicLibrary.cpp llvm-3.5.0.src/lib/Support/DynamicLibrary.cpp
---- llvm-3.5.0.src.orig/lib/Support/DynamicLibrary.cpp	2014-11-13 12:51:53.341455401 +0000
-+++ llvm-3.5.0.src/lib/Support/DynamicLibrary.cpp	2014-11-13 12:52:07.781720766 +0000
-@@ -138,7 +138,7 @@
- 
- // This macro returns the address of a well-known, explicit symbol
- #define EXPLICIT_SYMBOL(SYM) \
--   if (!strcmp(symbolName, #SYM)) return &SYM
-+   if (!strcmp(symbolName, #SYM)) return (void *) &SYM
- 
- // On linux we have a weird situation. The stderr/out/in symbols are both
- // macros and global variables because of standards requirements. So, we
-diff -ru llvm-3.5.0.src.orig/lib/Support/Unix/Signals.inc llvm-3.5.0.src/lib/Support/Unix/Signals.inc
---- llvm-3.5.0.src.orig/lib/Support/Unix/Signals.inc	2014-11-13 12:51:53.341455401 +0000
-+++ llvm-3.5.0.src/lib/Support/Unix/Signals.inc	2014-11-13 12:52:07.781720766 +0000
-@@ -266,7 +266,7 @@
- // On glibc systems we have the 'backtrace' function, which works nicely, but
- // doesn't demangle symbols.
- void llvm::sys::PrintStackTrace(FILE *FD) {
--#if defined(HAVE_BACKTRACE) && defined(ENABLE_BACKTRACES)
-+#if defined(__GLIBC__) && defined(HAVE_BACKTRACE) && defined(ENABLE_BACKTRACES)
-   static void* StackTrace[256];
-   // Use backtrace() to output a backtrace on Linux systems with glibc.
-   int depth = backtrace(StackTrace,
-diff -ru llvm-3.5.0.src.orig/lib/Target/TargetLibraryInfo.cpp llvm-3.5.0.src/lib/Target/TargetLibraryInfo.cpp
---- llvm-3.5.0.src.orig/lib/Target/TargetLibraryInfo.cpp	2014-11-13 12:51:53.341455401 +0000
-+++ llvm-3.5.0.src/lib/Target/TargetLibraryInfo.cpp	2014-11-13 12:52:07.785054160 +0000
-@@ -653,14 +653,15 @@
-   }
- 
-   // The following functions are available on at least Linux:
--  if (!T.isOSLinux()) {
-+  if (!T.isOSLinux())
-+    TLI.setUnavailable(LibFunc::memalign);
-+  if (1 /*!T.isGlibc()*/) {
-     TLI.setUnavailable(LibFunc::dunder_strdup);
-     TLI.setUnavailable(LibFunc::dunder_strtok_r);
-     TLI.setUnavailable(LibFunc::dunder_isoc99_scanf);
-     TLI.setUnavailable(LibFunc::dunder_isoc99_sscanf);
-     TLI.setUnavailable(LibFunc::under_IO_getc);
-     TLI.setUnavailable(LibFunc::under_IO_putc);
--    TLI.setUnavailable(LibFunc::memalign);
-     TLI.setUnavailable(LibFunc::fopen64);
-     TLI.setUnavailable(LibFunc::fseeko64);
-     TLI.setUnavailable(LibFunc::fstat64);
-diff -ru llvm-3.5.0.src.orig/utils/unittest/googletest/src/gtest.cc llvm-3.5.0.src/utils/unittest/googletest/src/gtest.cc
---- llvm-3.5.0.src.orig/utils/unittest/googletest/src/gtest.cc	2014-11-13 12:51:53.341455401 +0000
-+++ llvm-3.5.0.src/utils/unittest/googletest/src/gtest.cc	2014-11-13 12:52:07.785054160 +0000
-@@ -120,6 +120,7 @@
- 
- #if GTEST_CAN_STREAM_RESULTS_
- # include <arpa/inet.h>  // NOLINT
-+# include <sys/socket.h>  // NOLINT
- # include <netdb.h>  // NOLINT
- #endif
-