gnu: Remove clang-runtime-12.

* gnu/packages/llvm.scm (clang-runtime-12): Delete variable.
* gnu/packages/patches/clang-12.0-libc-search-path.patch: Remove file.
* gnu/local.mk (dist_patch_DATA): Unregister patch.

Change-Id: I441b9c7dacf323bbd4003f2848e7cfd3c085822b

3 files changed, 0 insertions, 91 deletions

diff --git a/gnu/local.mk b/gnu/local.mk
index 6d0bb89c4c3..845aebf30a4 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1111,7 +1111,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/clamav-config-llvm-libs.patch            \
   %D%/packages/patches/clamav-system-tomsfastmath.patch         \
   %D%/packages/patches/clang-11.0-libc-search-path.patch        \
-  %D%/packages/patches/clang-12.0-libc-search-path.patch        \
   %D%/packages/patches/clang-13.0-libc-search-path.patch        \
   %D%/packages/patches/clang-13-remove-crypt-interceptors.patch \
   %D%/packages/patches/clang-14.0-libc-search-path.patch        \
diff --git a/gnu/packages/llvm.scm b/gnu/packages/llvm.scm
index a526a7bc627..121d7449734 100644
--- a/gnu/packages/llvm.scm
+++ b/gnu/packages/llvm.scm
@@ -1011,12 +1011,6 @@ Library.")
              (setenv "LD_LIBRARY_PATH"
                      (string-append (getcwd) "/lib"))))))))))
 
-(define-public clang-runtime-12
-  (clang-runtime-from-llvm
-   llvm-12
-   "1950rg294izdwkaasi7yjrmadc9mzdd5paf0q63jjcq2m3rdbj5l"
-   '("clang-runtime-13-glibc-2.36-compat.patch" "clang-runtime-12-remove-crypt-interceptors.patch")))
-
 (define-public llvm-16
   (make-llvm "16.0.6"))
 
diff --git a/gnu/packages/patches/clang-12.0-libc-search-path.patch b/gnu/packages/patches/clang-12.0-libc-search-path.patch
deleted file mode 100644
index 38de2750488..00000000000
--- a/gnu/packages/patches/clang-12.0-libc-search-path.patch
+++ /dev/null
@@ -1,84 +0,0 @@
-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 foreign distros.
-
-diff --git a/lib/Driver/Distro.cpp b/lib/Driver/Distro.cpp
-index ee4fe841..f0313bbe 100644
---- a/lib/Driver/Distro.cpp
-+++ b/lib/Driver/Distro.cpp
-@@ -93,6 +93,10 @@ static Distro::DistroType DetectLsbRelease(llvm::vfs::FileSystem &VFS) {
- }
- 
- static Distro::DistroType DetectDistro(llvm::vfs::FileSystem &VFS) {
-+  // The compiler should always behave the same, even when used via Guix on a
-+  // foreign distro.
-+  return Distro::UnknownDistro;
-+
-   Distro::DistroType Version = Distro::UnknownDistro;
- 
-   // Newer freedesktop.org's compilant systemd-based systems
-diff --git a/lib/Driver/ToolChains/Cuda.cpp b/lib/Driver/ToolChains/Cuda.cpp
-index d14776c5..88bc3ccd 100644
---- a/lib/Driver/ToolChains/Cuda.cpp
-+++ b/lib/Driver/ToolChains/Cuda.cpp
-@@ -119,6 +119,9 @@ CudaInstallationDetector::CudaInstallationDetector(
-     const Driver &D, const llvm::Triple &HostTriple,
-     const llvm::opt::ArgList &Args)
-     : D(D) {
-+  // Don't look for CUDA in /usr.
-+  return;
-+
-   struct Candidate {
-     std::string Path;
-     bool StrictChecking;
-diff --git a/lib/Driver/ToolChains/Linux.cpp b/lib/Driver/ToolChains/Linux.cpp
-index 9663a739..107f96d6 100644
---- a/lib/Driver/ToolChains/Linux.cpp
-+++ b/lib/Driver/ToolChains/Linux.cpp
-@@ -223,6 +223,9 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
- 
-   Generic_GCC::PushPPaths(PPaths);
- 
-+  // 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(), Triple);
- 
-   if (Distro.IsAlpineLinux() || Triple.isAndroid()) {
-@@ -288,6 +291,7 @@ 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.
-@@ -301,6 +305,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
- 
-   Generic_GCC::AddMultilibPaths(D, SysRoot, OSLibDir, MultiarchTriple, Paths);
- 
-+#if 0
-   // Similar to the logic for GCC above, if we currently running Clang inside
-   // of the requested system root, add its parent library paths to
-   // those searched.
-@@ -352,9 +357,14 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
-   // directory ('Dir' below) or the ResourceDir.
-   if (StringRef(D.Dir).startswith(SysRoot))
-     addPathIfExists(D, D.Dir + "/../lib", Paths);
-+#endif
-+
-+  // 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);
- 
--  addPathIfExists(D, SysRoot + "/lib", Paths);
--  addPathIfExists(D, SysRoot + "/usr/lib", Paths);
-+  // Add GCC's lib/ directory so libstdc++.so can be found.
-+  addPathIfExists(D, GCCInstallation.getParentLibPath(), Paths);
- }
- 
- ToolChain::CXXStdlibType Linux::GetDefaultCXXStdlibType() const {