gcc-snapshot: remove

Package is marked as broken for >2 years and used a fairly old
snapshot from the gcc7-branch, so I fairly doubt that this is
somewhere used (and is also pretty misleading as you don't expect a
random snapshot from gcc7 at `pkgs.gcc-snapshot`).

3 files changed, 2 insertions, 264 deletions

diff --git a/pkgs/development/compilers/gcc/snapshot/default.nix b/pkgs/development/compilers/gcc/snapshot/default.nix
deleted file mode 100644
index 0441296ef17..00000000000
--- a/pkgs/development/compilers/gcc/snapshot/default.nix
+++ /dev/null
@@ -1,252 +0,0 @@
-{ stdenv, targetPackages, fetchurl, fetchpatch, noSysDirs
-, langC ? true, langCC ? true, langFortran ? false
-, langObjC ? stdenv.targetPlatform.isDarwin
-, langObjCpp ? stdenv.targetPlatform.isDarwin
-, langGo ? false
-, profiledCompiler ? false
-, staticCompiler ? false
-, enableShared ? true
-, enableLTO ? true
-, texinfo ? null
-, perl ? null # optional, for texi2pod (then pod2man)
-, gmp, mpfr, libmpc, gettext, which
-, libelf                      # optional, for link-time optimizations (LTO)
-, isl ? null # optional, for the Graphite optimization framework.
-, zlib ? null
-, enableMultilib ? false
-, enablePlugin ? stdenv.hostPlatform == stdenv.buildPlatform # Whether to support user-supplied plug-ins
-, name ? "gcc"
-, libcCross ? null
-, threadsCross ? null # for MinGW
-, crossStageStatic ? false
-, # Strip kills static libs of other archs (hence no cross)
-  stripped ? stdenv.hostPlatform == stdenv.buildPlatform
-          && stdenv.targetPlatform == stdenv.hostPlatform
-, gnused ? null
-, cloog # unused; just for compat with gcc4, as we override the parameter on some places
-, flex ? null
-, buildPackages
-}:
-
-# LTO needs libelf and zlib.
-assert libelf != null -> zlib != null;
-
-# Make sure we get GNU sed.
-assert stdenv.hostPlatform.isDarwin -> gnused != null;
-
-# The go frontend is written in c++
-assert langGo -> langCC;
-
-# threadsCross is just for MinGW
-assert threadsCross != null -> stdenv.targetPlatform.isWindows;
-
-with stdenv.lib;
-with builtins;
-
-let majorVersion = "7";
-    version = "${majorVersion}-20170409";
-
-    inherit (stdenv) buildPlatform hostPlatform targetPlatform;
-
-    patches =
-      [ ]
-      ++ optional (targetPlatform != hostPlatform) ../libstdc++-target.patch
-      ++ optional noSysDirs ../no-sys-dirs.patch
-      ++ optional langFortran ../gfortran-driving.patch
-      ++ optional (!crossStageStatic && targetPlatform.isMinGW) (fetchpatch {
-        url = "https://raw.githubusercontent.com/lhmouse/MINGW-packages/${import ../common/mfcgthreads-patches-repo.nix}/mingw-w64-gcc-git/9000-gcc-${majorVersion}-branch-Added-mcf-thread-model-support-from-mcfgthread.patch";
-        sha256 = "1nyjnshpq5gbcbbpfv27hy4ajvycmgkpiabkjlxnnrnq1d99k1ay";
-      });
-
-    /* Cross-gcc settings (build == host != target) */
-    crossMingw = targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt";
-    stageNameAddon = if crossStageStatic then "stage-static" else "stage-final";
-    crossNameAddon = optionalString (targetPlatform != hostPlatform) "${targetPlatform.config}-${stageNameAddon}-";
-
-in
-
-stdenv.mkDerivation ({
-  pname = "${crossNameAddon}${name}${if stripped then "" else "-debug"}";
-  inherit version;
-
-  builder = ../builder.sh;
-
-  src = fetchurl {
-    url = "mirror://gcc/snapshots/${version}/gcc-${version}.tar.bz2";
-    sha256 = "19197rw1xrpkb8h10lfgn6zj7yj52x95hdmr0x5lg8i4v3i23b67";
-  };
-
-  inherit patches;
-
-  outputs = [ "out" "lib" "man" "info" ];
-  setOutputFlags = false;
-  NIX_NO_SELF_RPATH = true;
-
-  libc_dev = stdenv.cc.libc_dev;
-
-  hardeningDisable = [ "format" "pie" ];
-
-  postPatch =
-    if targetPlatform != hostPlatform || stdenv.cc.libc != null then
-      # On NixOS, use the right path to the dynamic linker instead of
-      # `/lib/ld*.so'.
-      let
-        libc = if libcCross != null then libcCross else stdenv.cc.libc;
-      in
-        '' echo "fixing the \`GLIBC_DYNAMIC_LINKER' and \`UCLIBC_DYNAMIC_LINKER' macros..."
-           for header in "gcc/config/"*-gnu.h "gcc/config/"*"/"*.h
-           do
-             grep -q LIBC_DYNAMIC_LINKER "$header" || continue
-             echo "  fixing \`$header'..."
-             sed -i "$header" \
-                 -e 's|define[[:blank:]]*\([UCG]\+\)LIBC_DYNAMIC_LINKER\([0-9]*\)[[:blank:]]"\([^\"]\+\)"$|define \1LIBC_DYNAMIC_LINKER\2 "${libc.out}\3"|g'
-           done
-        ''
-    else null;
-
-  inherit noSysDirs staticCompiler crossStageStatic
-    libcCross crossMingw;
-
-  depsBuildBuild = [ buildPackages.stdenv.cc ];
-  nativeBuildInputs = [ texinfo which gettext ]
-    ++ (optional (perl != null) perl);
-
-  # For building runtime libs
-  depsBuildTarget =
-    if hostPlatform == buildPlatform then [
-      targetPackages.stdenv.cc.bintools # newly-built gcc will be used
-    ] else assert targetPlatform == hostPlatform; [ # build != host == target
-      stdenv.cc
-    ];
-
-  buildInputs = [
-    gmp mpfr libmpc libelf flex
-    targetPackages.stdenv.cc.bintools # For linking code at run-time
-  ] ++ (optional (isl != null) isl)
-    ++ (optional (zlib != null) zlib)
-    # The builder relies on GNU sed (for instance, Darwin's `sed' fails with
-    # "-i may not be used with stdin"), and `stdenvNative' doesn't provide it.
-    ++ (optional hostPlatform.isDarwin gnused)
-    ;
-
-  depsTargetTarget = optional (!crossStageStatic && threadsCross != null) threadsCross;
-
-  NIX_LDFLAGS = stdenv.lib.optionalString  hostPlatform.isSunOS "-lm -ldl";
-
-  preConfigure = import ../common/pre-configure.nix {
-    inherit (stdenv) lib;
-    inherit version hostPlatform langGo;
-  };
-
-  dontDisableStatic = true;
-
-  # TODO(@Ericson2314): Always pass "--target" and always prefix.
-  configurePlatforms = [ "build" "host" ] ++ stdenv.lib.optional (targetPlatform != hostPlatform) "target";
-
-  configureFlags = import ../common/configure-flags.nix {
-    inherit
-      stdenv
-      targetPackages
-      crossStageStatic libcCross
-      version
-
-      gmp mpfr libmpc libelf isl
-
-      enableLTO
-      enableMultilib
-      enablePlugin
-      enableShared
-
-      langC
-      langCC
-      langFortran
-      langGo
-      langObjC
-      langObjCpp
-      ;
-  };
-
-  targetConfig = if targetPlatform != hostPlatform then targetPlatform.config else null;
-
-  buildFlags = optional
-    (targetPlatform == hostPlatform && hostPlatform == buildPlatform)
-    (if profiledCompiler then "profiledbootstrap" else "bootstrap");
-
-  dontStrip = !stripped;
-  NIX_STRIP_DEBUG = !stripped;
-
-  installTargets =
-    if stripped
-    then "install-strip"
-    else "install";
-
-  # https://gcc.gnu.org/install/specific.html#x86-64-x-solaris210
-  ${if hostPlatform.system == "x86_64-solaris" then "CC" else null} = "gcc -m64";
-
-  # Setting $CPATH and $LIBRARY_PATH to make sure both `gcc' and `xgcc' find the
-  # library headers and binaries, regarless of the language being compiled.
-  #
-  # Likewise, the LTO code doesn't find zlib.
-  #
-  # Cross-compiling, we need gcc not to read ./specs in order to build the g++
-  # compiler (after the specs for the cross-gcc are created). Having
-  # LIBRARY_PATH= makes gcc read the specs from ., and the build breaks.
-
-  CPATH = optionals (targetPlatform == hostPlatform) (makeSearchPathOutput "dev" "include" ([]
-    ++ optional (zlib != null) zlib
-  ));
-
-  LIBRARY_PATH = optionals (targetPlatform == hostPlatform) (makeLibraryPath (optional (zlib != null) zlib));
-
-  inherit
-    (import ../common/extra-target-flags.nix {
-      inherit stdenv crossStageStatic libcCross threadsCross;
-    })
-    EXTRA_TARGET_FLAGS
-    EXTRA_TARGET_LDFLAGS
-    ;
-
-  passthru = {
-    inherit langC langCC langObjC langObjCpp langFortran langGo version;
-    isGNU = true;
-  };
-
-  enableParallelBuilding = true;
-  inherit enableMultilib;
-
-  inherit (stdenv) is64bit;
-
-  meta = {
-    homepage = https://gcc.gnu.org/;
-    license = stdenv.lib.licenses.gpl3Plus;  # runtime support libraries are typically LGPLv3+
-    description = "GNU Compiler Collection, version ${version}"
-      + (if stripped then "" else " (with debugging info)");
-
-    longDescription = ''
-      The GNU Compiler Collection includes compiler front ends for C, C++,
-      Objective-C, Fortran, OpenMP for C/C++/Fortran, and Ada, as well as
-      libraries for these languages (libstdc++, libgomp,...).
-
-      GCC development is a part of the GNU Project, aiming to improve the
-      compiler used in the GNU system including the GNU/Linux variant.
-    '';
-
-    maintainers = with stdenv.lib.maintainers; [ ];
-
-    platforms =
-      stdenv.lib.platforms.linux ++
-      stdenv.lib.platforms.freebsd ++
-      stdenv.lib.platforms.illumos ++
-      stdenv.lib.platforms.darwin;
-
-    broken = true;
-  };
-}
-
-// optionalAttrs (targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt" && crossStageStatic) {
-  makeFlags = [ "all-gcc" "all-target-libgcc" ];
-  installTargets = "install-gcc install-target-libgcc";
-}
-
-// optionalAttrs (enableMultilib) { dontMoveLib64 = true; }
-)
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 4ee74a0f58e..de6cb64bf98 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -571,4 +571,6 @@ mapAliases ({
 
   dnscrypt-proxy = throw "dnscrypt-proxy has been removed. Please use dnscrypt-proxy2."; # added 2020-02-02
   sqldeveloper_18 = throw "sqldeveloper_18 is not maintained anymore!"; # added 2020-02-04
+
+  gcc-snapshot = throw "Marked as broken for >2 years, additionally this 'snapshot' pointed to a fairly old one from gcc7.";
 })
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 361b30a187f..3140dd17bf7 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8133,18 +8133,6 @@ in
     isl = if !stdenv.isDarwin then isl_0_17 else null;
   }));
 
-  gcc-snapshot = lowPrio (wrapCC (callPackage ../development/compilers/gcc/snapshot {
-    inherit noSysDirs;
-
-    # PGO seems to speed up compilation by gcc by ~10%, see #445 discussion
-    profiledCompiler = with stdenv; (!isDarwin && (isi686 || isx86_64));
-
-    libcCross = if stdenv.targetPlatform != stdenv.buildPlatform then libcCross else null;
-    threadsCross = if stdenv.targetPlatform != stdenv.buildPlatform then threadsCross else null;
-
-    isl = isl_0_17;
-  }));
-
   gfortran = gfortran9;
 
   gfortran48 = wrapCC (gcc48.cc.override {