swift: fix build

pkgs/development/compilers/swift/default.nix

@@ -12,7 +12,6 @@
 , swig
 , bash
 , libxml2
-, llvm
 , clang
 , python
 , ncurses
@@ -28,8 +27,10 @@
 , git
 , libgit2
 , fetchFromGitHub
+, fetchpatch
 , paxctl
 , findutils
+, makeWrapper
 #, systemtap
 }:
 
@@ -47,7 +48,7 @@ let
       name = "${repo}-${version}-src";
     };
 
-sources = {
+  sources = {
     # FYI: SourceKit probably would work but currently requires building everything twice
     # For more inforation, see: https://github.com/apple/swift/pull/3594#issuecomment-234169759
     clang = fetch {
@@ -119,6 +120,8 @@ sources = {
   ];
 
   builder = ''
+    NIX_CFLAGS_COMPILE=$( echo ${clang.default_cxx_stdlib_compile} )
+
     $SWIFT_SOURCE_ROOT/swift/utils/build-script \
       --preset=buildbot_linux \
       installable_package=$INSTALLABLE_PACKAGE \
@@ -126,6 +129,20 @@ sources = {
       install_destdir=$SWIFT_INSTALL_DIR \
       extra_cmake_options="${stdenv.lib.concatStringsSep "," cmakeFlags}"'';
 
+  # from llvm/4/llvm.nix
+  sigaltstackPatch = fetchpatch {
+    name = "sigaltstack.patch"; # for glibc-2.26
+    url = https://github.com/llvm-mirror/compiler-rt/commit/8a5e425a68d.diff;
+    sha256 = "0h4y5vl74qaa7dl54b1fcyqalvlpd8zban2d1jxfkxpzyi7m8ifi";
+  };
+
+  # https://bugs.swift.org/browse/SR-6409
+  sigunusedPatch = fetchpatch {
+    name = "sigunused.patch";
+    url = "https://github.com/apple/swift-llbuild/commit/303a89bc6da606c115560921a452686aa0655f5e.diff";
+    sha256 = "04sw7ym1grzggj1v3xrzr2ljxz8rf9rnn9n5fg1xjbwlrdagkc7m";
+  };
+
 in
 stdenv.mkDerivation rec {
   name = "swift-${version_friendly}";
@@ -145,6 +162,7 @@ stdenv.mkDerivation rec {
     rsync
     which
     findutils
+    makeWrapper
   ] ++ stdenv.lib.optional stdenv.needsPax paxctl;
 
   # TODO: Revisit what's propagated and how
@@ -209,6 +227,10 @@ stdenv.mkDerivation rec {
     patch -p1 -d swift -i ${./patches/0002-build-presets-linux-allow-custom-install-prefix.patch}
     patch -p1 -d swift -i ${./patches/0003-build-presets-linux-disable-tests.patch}
     patch -p1 -d swift -i ${./patches/0004-build-presets-linux-plumb-extra-cmake-options.patch}
+    # https://sourceware.org/glibc/wiki/Release/2.26#Removal_of_.27xlocale.h.27
+    patch -p1 -i ${./patches/remove_xlocale.patch}
+    # https://bugs.swift.org/browse/SR-4633
+    patch -p1 -d swift -i ${./patches/icu59.patch}
 
     substituteInPlace clang/lib/Driver/ToolChains.cpp \
       --replace '  addPathIfExists(D, SysRoot + "/usr/lib", Paths);' \
@@ -232,6 +254,11 @@ stdenv.mkDerivation rec {
       --replace usr "$PREFIX"
     substituteInPlace swiftpm/Utilities/bootstrap \
       --replace "usr" "$PREFIX"
+  '' + stdenv.lib.optionalString (stdenv ? glibc) ''
+    patch -p1 -d compiler-rt -i ${sigaltstackPatch}
+    patch -p1 -d compiler-rt -i ${./patches/sigaltstack.patch}
+    patch -p1 -d llbuild -i ${sigunusedPatch}
+    patch -p1 -i ${./patches/sigunused.patch}
   '';
 
   doCheck = false;
@@ -251,6 +278,10 @@ stdenv.mkDerivation rec {
     # TODO: Use wrappers to get these on the PATH for swift tools, instead
     ln -s ${clang}/bin/* $out/bin/
     ln -s ${targetPackages.stdenv.cc.bintools}/bin/ar $out/bin/ar
+
+    wrapProgram $out/bin/swift \
+      --suffix C_INCLUDE_PATH : $out/lib/swift/clang/include \
+      --suffix CPLUS_INCLUDE_PATH : $out/lib/swift/clang/include
   '';
 
   # Hack to avoid TMPDIR in RPATHs.
@@ -263,7 +294,6 @@ stdenv.mkDerivation rec {
     license = licenses.asl20;
     # Swift doesn't support 32bit Linux, unknown on other platforms.
     platforms = [ "x86_64-linux" ];
-    broken = true;
   };
 }
 

pkgs/development/compilers/swift/patches/icu59.patch

@@ -0,0 +1,101 @@
+--- a/stdlib/public/stubs/UnicodeNormalization.cpp
++++ b/stdlib/public/stubs/UnicodeNormalization.cpp
+@@ -86,11 +86,8 @@ ASCIICollation() {
+     for (unsigned char c = 0; c < 128; ++c) {
+       UErrorCode ErrorCode = U_ZERO_ERROR;
+       intptr_t NumCollationElts = 0;
+-#if defined(__CYGWIN__) || defined(_MSC_VER)
+       UChar Buffer[1];
+-#else
+-      uint16_t Buffer[1];
+-#endif
++
+       Buffer[0] = c;
+ 
+       UCollationElements *CollationIterator =
+@@ -127,18 +124,9 @@ swift::_swift_stdlib_unicode_compare_utf16_utf16(const uint16_t *LeftString,
+                                                  int32_t LeftLength,
+                                                  const uint16_t *RightString,
+                                                  int32_t RightLength) {
+-#if defined(__CYGWIN__) || defined(_MSC_VER)
+-  // ICU UChar type is platform dependent. In Cygwin, it is defined
+-  // as wchar_t which size is 2. It seems that the underlying binary
+-  // representation is same with swift utf16 representation.
+   return ucol_strcoll(GetRootCollator(),
+     reinterpret_cast<const UChar *>(LeftString), LeftLength,
+     reinterpret_cast<const UChar *>(RightString), RightLength);
+-#else
+-  return ucol_strcoll(GetRootCollator(),
+-    LeftString, LeftLength,
+-    RightString, RightLength);
+-#endif
+ }
+ 
+ /// Compares the strings via the Unicode Collation Algorithm on the root locale.
+@@ -156,12 +144,8 @@ swift::_swift_stdlib_unicode_compare_utf8_utf16(const unsigned char *LeftString,
+   UErrorCode ErrorCode = U_ZERO_ERROR;
+ 
+   uiter_setUTF8(&LeftIterator, reinterpret_cast<const char *>(LeftString), LeftLength);
+-#if defined(__CYGWIN__) || defined(_MSC_VER)
+   uiter_setString(&RightIterator, reinterpret_cast<const UChar *>(RightString),
+                   RightLength);
+-#else
+-  uiter_setString(&RightIterator, RightString, RightLength);
+-#endif
+ 
+   uint32_t Diff = ucol_strcollIter(GetRootCollator(),
+     &LeftIterator, &RightIterator, &ErrorCode);
+@@ -199,14 +183,10 @@ swift::_swift_stdlib_unicode_compare_utf8_utf8(const unsigned char *LeftString,
+ void *swift::_swift_stdlib_unicodeCollationIterator_create(
+     const __swift_uint16_t *Str, __swift_uint32_t Length) {
+   UErrorCode ErrorCode = U_ZERO_ERROR;
+-#if defined(__CYGWIN__) || defined(_MSC_VER)
+   UCollationElements *CollationIterator = ucol_openElements(
+     GetRootCollator(), reinterpret_cast<const UChar *>(Str), Length,
+     &ErrorCode);
+-#else
+-  UCollationElements *CollationIterator = ucol_openElements(
+-    GetRootCollator(), Str, Length, &ErrorCode);
+-#endif
++
+   if (U_FAILURE(ErrorCode)) {
+     swift::crash("_swift_stdlib_unicodeCollationIterator_create: ucol_openElements() failed.");
+   }
+@@ -244,17 +224,12 @@ swift::_swift_stdlib_unicode_strToUpper(uint16_t *Destination,
+                                         const uint16_t *Source,
+                                         int32_t SourceLength) {
+   UErrorCode ErrorCode = U_ZERO_ERROR;
+-#if defined(__CYGWIN__) || defined(_MSC_VER)
+   uint32_t OutputLength = u_strToUpper(reinterpret_cast<UChar *>(Destination),
+                                        DestinationCapacity,
+                                        reinterpret_cast<const UChar *>(Source),
+                                        SourceLength,
+                                        "", &ErrorCode);
+-#else
+-  uint32_t OutputLength = u_strToUpper(Destination, DestinationCapacity,
+-                                       Source, SourceLength,
+-                                       "", &ErrorCode);
+-#endif
++
+   if (U_FAILURE(ErrorCode) && ErrorCode != U_BUFFER_OVERFLOW_ERROR) {
+     swift::crash("u_strToUpper: Unexpected error uppercasing unicode string.");
+   }
+@@ -271,17 +246,12 @@ swift::_swift_stdlib_unicode_strToLower(uint16_t *Destination,
+                                         const uint16_t *Source,
+                                         int32_t SourceLength) {
+   UErrorCode ErrorCode = U_ZERO_ERROR;
+-#if defined(__CYGWIN__) || defined(_MSC_VER)
+   uint32_t OutputLength = u_strToLower(reinterpret_cast<UChar *>(Destination),
+                                        DestinationCapacity,
+                                        reinterpret_cast<const UChar *>(Source),
+                                        SourceLength,
+                                        "", &ErrorCode);
+-#else
+-  uint32_t OutputLength = u_strToLower(Destination, DestinationCapacity,
+-                                       Source, SourceLength,
+-                                       "", &ErrorCode);
+-#endif
++
+   if (U_FAILURE(ErrorCode) && ErrorCode != U_BUFFER_OVERFLOW_ERROR) {
+     swift::crash("u_strToLower: Unexpected error lowercasing unicode string.");
+   }

pkgs/development/compilers/swift/patches/remove_xlocale.patch

@@ -0,0 +1,54 @@
+--- a/swift/stdlib/public/SDK/os/os_trace_blob.c
++++ b/swift/stdlib/public/SDK/os/os_trace_blob.c
+@@ -14,7 +14,6 @@
+ #include <dispatch/dispatch.h>
+ #include <os/base.h>
+ #include <os/log.h>
+-#include <xlocale.h>
+ #include "os_trace_blob.h"
+ 
+ OS_NOINLINE
+
+--- a/swift/stdlib/public/stubs/Stubs.cpp
++++ b/swift/stdlib/public/stubs/Stubs.cpp
+@@ -61,7 +61,6 @@
+ #define strtof_l swift_strtof_l
+ #define strtold_l swift_strtold_l
+ #else
+-#include <xlocale.h>
+ #endif
+ #include <limits>
+ #include "llvm/ADT/StringExtras.h"
+
+--- a/swift-corelibs-foundation/CoreFoundation/String.subproj/CFStringDefaultEncoding.h
++++ b/swift-corelibs-foundation/CoreFoundation/String.subproj/CFStringDefaultEncoding.h
+@@ -20,7 +20,6 @@
+ #include <unistd.h>
+ #include <string.h>
+ #include <stdio.h>
+-#include <xlocale.h>
+ 
+ CF_EXTERN_C_BEGIN
+ 
+
+--- a/swift-corelibs-foundation/CoreFoundation/String.subproj/CFStringEncodings.c
++++ b/swift-corelibs-foundation/CoreFoundation/String.subproj/CFStringEncodings.c
+@@ -24,7 +24,6 @@
+ #include <unistd.h>
+ #include <string.h>
+ #include <stdio.h>
+-#include <xlocale.h>
+ #include <CoreFoundation/CFStringDefaultEncoding.h>
+ #endif
+ 
+
+--- a/swift-corelibs-foundation/CoreFoundation/Base.subproj/CFInternal.h
++++ b/swift-corelibs-foundation/CoreFoundation/Base.subproj/CFInternal.h
+@@ -95,7 +95,6 @@
+ #if DEPLOYMENT_TARGET_MACOSX || DEPLOYMENT_TARGET_EMBEDDED || DEPLOYMENT_TARGET_EMBEDDED_MINI || DEPLOYMENT_TARGET_LINUX || DEPLOYMENT_TARGET_FREEBSD
+ #if TARGET_OS_CYGWIN
+ #else
+-#include <xlocale.h>
+ #endif
+ #include <unistd.h>
+ #include <sys/time.h>

pkgs/development/compilers/swift/patches/sigaltstack.patch

@@ -0,0 +1,11 @@
+--- a/lib/esan/esan_sideline_linux.cpp
++++ b/lib/esan/esan_sideline_linux.cpp
+@@ -70,7 +70,7 @@ int SidelineThread::runSideline(void *Arg) {
+ 
+   // Set up a signal handler on an alternate stack for safety.
+   InternalScopedBuffer<char> StackMap(SigAltStackSize);
+-  struct sigaltstack SigAltStack;
++  stack_t SigAltStack;
+   SigAltStack.ss_sp = StackMap.data();
+   SigAltStack.ss_size = SigAltStackSize;
+   SigAltStack.ss_flags = 0;

pkgs/development/compilers/swift/patches/sigunused.patch

@@ -0,0 +1,24 @@
+--- a/swift-corelibs-libdispatch/libpwq/src/posix/manager.c
++++ b/swift-corelibs-libdispatch/libpwq/src/posix/manager.c
+@@ -273,9 +273,6 @@ static void sigmask_init(void)
+     sigdelset(&sigmask, SIGFPE);
+     sigdelset(&sigmask, SIGBUS);
+     sigdelset(&sigmask, SIGSEGV);
+-#if SIGSYS != SIGUNUSED
+-    sigdelset(&sigmask, SIGSYS);
+-#endif
+     sigdelset(&sigmask, SIGPIPE);
+     sigdelset(&sigmask, SIGPROF);
+ 
+
+--- a/swiftpm/Sources/Utility/Process.swift
++++ b/swiftpm/Sources/Utility/Process.swift
+@@ -140,7 +140,7 @@ public final class Process: ObjectIdentifierProtocol {
+         // modify, so we have to take care about the set we use.
+         var mostSignals = sigset_t()
+         sigemptyset(&mostSignals);
+-        for i in 1 ..< SIGUNUSED {
++        for i in 1 ..< SIGSYS {
+             if i == SIGKILL || i == SIGSTOP {
+                 continue
+             }