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authorMarius Bakke <mbakke@fastmail.com>2019-02-15 11:28:14 +0100
committerMarius Bakke <mbakke@fastmail.com>2019-02-15 12:12:09 +0100
commitd199a4c7b4c4d3320ed59e96a382f4c577630360 (patch)
treef959b0cedc6d854dc0a12935a873ae5172706e1f /gnu/packages/patches
parent3bdcc668ee94264798de0e8a8633335528e80e19 (diff)
gnu: LLVM, Clang: Update to 7.0.1.
* gnu/packages/patches/clang-7.0-libc-search-path.patch: New file. * gnu/local.mk (dist_patch_DATA): Adjust accordingly. * gnu/packages/llvm.scm (llvm, clang-runtime, clang): Update to 7.0.1. (llvm-7.0.1): Remove variable. (clang-from-llvm)[arguments]: Adjust phase to match Clang 7. (llvm-6, clang-runtime-6, clang-6): New public variables. * gnu/packages/dlang.scm (ldc)[native-inputs]: Change LLVM and CLANG to LLVM-6.0 and CLANG-6.0. * gnu/packages/gl.scm (mesa)[inputs]: Change from LLVM to LLVM-6.
Diffstat (limited to 'gnu/packages/patches')
-rw-r--r--gnu/packages/patches/clang-7.0-libc-search-path.patch82
1 files changed, 82 insertions, 0 deletions
diff --git a/gnu/packages/patches/clang-7.0-libc-search-path.patch b/gnu/packages/patches/clang-7.0-libc-search-path.patch
new file mode 100644
index 0000000000..07ff8c90bd
--- /dev/null
+++ b/gnu/packages/patches/clang-7.0-libc-search-path.patch
@@ -0,0 +1,82 @@
+Clang attempts to guess file names based on the OS and distro (yes!),
+but unfortunately, that doesn't work for us.
+
+This patch makes it easy to insert libc's $libdir so that Clang passes the
+correct absolute file name of crt1.o etc. to 'ld'. It also disables all
+the distro-specific stuff and removes the hard-coded FHS directory names
+to make sure Clang also works on non-GuixSD systems.
+
+--- a/lib/Driver/ToolChains/Linux.cpp
++++ b/lib/Driver/ToolChains/Linux.cpp
+@@ -225,7 +225,9 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+ PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" +
+ GCCInstallation.getTriple().str() + "/bin")
+ .str());
+-
++ // Comment out the distro-specific tweaks so that they don't bite when
++ // using Guix on a foreign distro.
++#if 0
+ Distro Distro(D.getVFS());
+
+ if (Distro.IsAlpineLinux()) {
+@@ -284,6 +286,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+
+ if (IsAndroid || Distro.IsOpenSUSE())
+ ExtraOpts.push_back("--enable-new-dtags");
++#endif
+
+ // The selection of paths to try here is designed to match the patterns which
+ // the GCC driver itself uses, as this is part of the GCC-compatible driver.
+@@ -342,7 +345,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+ // the cross. Note that GCC does include some of these directories in some
+ // configurations but this seems somewhere between questionable and simply
+ // a bug.
+- if (StringRef(LibPath).startswith(SysRoot)) {
++ if (0) {
+ addPathIfExists(D, LibPath + "/" + MultiarchTriple, Paths);
+ addPathIfExists(D, LibPath + "/../" + OSLibDir, Paths);
+ }
+@@ -361,6 +364,8 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+ addPathIfExists(D, SysRoot + "/lib/" + MultiarchTriple, Paths);
+ addPathIfExists(D, SysRoot + "/lib/../" + OSLibDir, Paths);
+
++ // This requires the commented distro tweaks above.
++#if 0
+ if (IsAndroid) {
+ // Android sysroots contain a library directory for each supported OS
+ // version as well as some unversioned libraries in the usual multiarch
+@@ -389,10 +394,14 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+ addPathIfExists(D, SysRoot + "/" + OSLibDir + "/" + ABIName, Paths);
+ addPathIfExists(D, SysRoot + "/usr/" + OSLibDir + "/" + ABIName, Paths);
+ }
++#endif
+
+ // Try walking via the GCC triple path in case of biarch or multiarch GCC
+ // installations with strange symlinks.
+ if (GCCInstallation.isValid()) {
++ // The following code would end up adding things like
++ // "/usr/lib/x86_64-unknown-linux-gnu/../../lib64" to the search path.
++#if 0
+ addPathIfExists(D,
+ SysRoot + "/usr/lib/" + GCCInstallation.getTriple().str() +
+ "/../../" + OSLibDir,
+@@ -405,6 +414,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+ BiarchSibling.gccSuffix(),
+ Paths);
+ }
++#endif
+
+ // See comments above on the multilib variant for details of why this is
+ // included even from outside the sysroot.
+@@ -429,8 +439,9 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+ if (StringRef(D.Dir).startswith(SysRoot))
+ addPathIfExists(D, D.Dir + "/../lib", Paths);
+
+- addPathIfExists(D, SysRoot + "/lib", Paths);
+- addPathIfExists(D, SysRoot + "/usr/lib", Paths);
++ // Add libc's lib/ directory to the search path, so that crt1.o, crti.o,
++ // and friends can be found.
++ addPathIfExists(D, "@GLIBC_LIBDIR@", Paths);
+ }
+
+ bool Linux::HasNativeLLVMSupport() const { return true; }