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-rw-r--r--nixpkgs/pkgs/development/compilers/gcc/6/0001-Fix-build-for-glibc-2.31.patch62
-rw-r--r--nixpkgs/pkgs/development/compilers/gcc/6/Added-mcf-thread-model-support-from-mcfgthread.patch285
-rw-r--r--nixpkgs/pkgs/development/compilers/gcc/6/default.nix372
-rw-r--r--nixpkgs/pkgs/development/compilers/gcc/6/fix-objdump-check.patch43
-rw-r--r--nixpkgs/pkgs/development/compilers/gcc/6/gnat-glibc234.patch30
-rw-r--r--nixpkgs/pkgs/development/compilers/gcc/6/gogcc-workaround-glibc-2.36.patch14
6 files changed, 0 insertions, 806 deletions
diff --git a/nixpkgs/pkgs/development/compilers/gcc/6/0001-Fix-build-for-glibc-2.31.patch b/nixpkgs/pkgs/development/compilers/gcc/6/0001-Fix-build-for-glibc-2.31.patch
deleted file mode 100644
index 0cd04e218caf..000000000000
--- a/nixpkgs/pkgs/development/compilers/gcc/6/0001-Fix-build-for-glibc-2.31.patch
+++ /dev/null
@@ -1,62 +0,0 @@
-From 8b55f1047cf3491429c1af607e5dac08a81db6e1 Mon Sep 17 00:00:00 2001
-From: Maximilian Bosch <maximilian@mbosch.me>
-Date: Thu, 20 Feb 2020 15:08:36 +0100
-Subject: [PATCH] Fix build for glibc 2.31
-
----
- .../sanitizer_platform_limits_posix.cc            |  5 +++--
- .../sanitizer_platform_limits_posix.h             | 15 +--------------
- 2 files changed, 4 insertions(+), 16 deletions(-)
-
-diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
-index 069d8d557..c49c28c6e 100644
---- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
-+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
-@@ -1130,8 +1130,9 @@ CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
- #ifndef __GLIBC_PREREQ
- #define __GLIBC_PREREQ(x, y) 0
- #endif
--#if !defined(__aarch64__) || !SANITIZER_LINUX || __GLIBC_PREREQ (2, 21)
--/* On aarch64 glibc 2.20 and earlier provided incorrect mode field.  */
-+#if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
-+/* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
-+   on many architectures.  */
- CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
- #endif
- 
-diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
-index 304d04e39..568081a79 100644
---- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
-+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
-@@ -200,27 +200,14 @@ namespace __sanitizer {
-     unsigned __seq;
-     u64 __unused1;
-     u64 __unused2;
--#elif defined(__mips__) || defined(__aarch64__)
--    unsigned int mode;
--    unsigned short __seq;
--    unsigned short __pad1;
--    unsigned long __unused1;
--    unsigned long __unused2;
- #elif defined(__sparc__)
--# if defined(__arch64__)
-     unsigned mode;
--    unsigned short __pad1;
--# else
--    unsigned short __pad1;
--    unsigned short mode;
-     unsigned short __pad2;
--# endif
-     unsigned short __seq;
-     unsigned long long __unused1;
-     unsigned long long __unused2;
- #else
--    unsigned short mode;
--    unsigned short __pad1;
-+    unsigned int mode;
-     unsigned short __seq;
-     unsigned short __pad2;
- #if defined(__x86_64__) && !defined(_LP64)
--- 
-2.25.0
-
diff --git a/nixpkgs/pkgs/development/compilers/gcc/6/Added-mcf-thread-model-support-from-mcfgthread.patch b/nixpkgs/pkgs/development/compilers/gcc/6/Added-mcf-thread-model-support-from-mcfgthread.patch
deleted file mode 100644
index 25e3a902cbf2..000000000000
--- a/nixpkgs/pkgs/development/compilers/gcc/6/Added-mcf-thread-model-support-from-mcfgthread.patch
+++ /dev/null
@@ -1,285 +0,0 @@
-From 30534f48c6ede142dad0008d1641392d82b8a137 Mon Sep 17 00:00:00 2001
-From: Liu Hao <lh_mouse@126.com>
-Date: Mon, 18 Apr 2016 11:50:55 +0800
-Subject: [PATCH] Added 'mcf' thread model support from mcfgthread.
-
-Signed-off-by: Liu Hao <lh_mouse@126.com>
----
- config/gthr.m4                          |  1 +
- gcc/config.gcc                          |  3 +++
- gcc/config/i386/mingw-mcfgthread.h      |  1 +
- gcc/config/i386/mingw-w64.h             |  2 +-
- gcc/config/i386/mingw32.h               | 11 ++++++++++-
- gcc/configure                           |  2 +-
- gcc/configure.ac                        |  2 +-
- libatomic/configure.tgt                 |  2 +-
- libgcc/config.host                      |  6 ++++++
- libgcc/config/i386/gthr-mcf.h           |  1 +
- libgcc/config/i386/t-mingw-mcfgthread   |  2 ++
- libgcc/configure                        |  1 +
- libstdc++-v3/configure                  |  1 +
- libstdc++-v3/libsupc++/atexit_thread.cc | 18 ++++++++++++++++++
- libstdc++-v3/libsupc++/guard.cc         | 23 +++++++++++++++++++++++
- 15 files changed, 71 insertions(+), 5 deletions(-)
- create mode 100644 gcc/config/i386/mingw-mcfgthread.h
- create mode 100644 libgcc/config/i386/gthr-mcf.h
- create mode 100644 libgcc/config/i386/t-mingw-mcfgthread
-
-diff --git a/config/gthr.m4 b/config/gthr.m4
-index 7b29f1f3327..82e21fe1709 100644
---- a/config/gthr.m4
-+++ b/config/gthr.m4
-@@ -21,6 +21,7 @@ case $1 in
-     tpf)	thread_header=config/s390/gthr-tpf.h ;;
-     vxworks)	thread_header=config/gthr-vxworks.h ;;
-     win32)	thread_header=config/i386/gthr-win32.h ;;
-+    mcf)	thread_header=config/i386/gthr-mcf.h ;;
- esac
- AC_SUBST(thread_header)
- ])
-diff --git a/gcc/config.gcc b/gcc/config.gcc
-index 858b878d4b3..6f745790d64 100644
---- a/gcc/config.gcc
-+++ b/gcc/config.gcc
-@@ -1722,6 +1722,9 @@ i[34567]86-*-mingw* | x86_64-*-mingw*)
- 	if test x$enable_threads = xposix ; then
- 		tm_file="${tm_file} i386/mingw-pthread.h"
- 	fi
-+	if test x$enable_threads = xmcf ; then
-+		tm_file="${tm_file} i386/mingw-mcfgthread.h"
-+	fi
- 	tm_file="${tm_file} i386/mingw32.h"
- 	# This makes the logic if mingw's or the w64 feature set has to be used
- 	case ${target} in
-diff --git a/gcc/config/i386/mingw-mcfgthread.h b/gcc/config/i386/mingw-mcfgthread.h
-new file mode 100644
-index 00000000000..ec381a7798f
---- /dev/null
-+++ b/gcc/config/i386/mingw-mcfgthread.h
-@@ -0,0 +1 @@
-+#define TARGET_USE_MCFGTHREAD 1
-diff --git a/gcc/config/i386/mingw-w64.h b/gcc/config/i386/mingw-w64.h
-index fe11333a2d1..cac85802f38 100644
---- a/gcc/config/i386/mingw-w64.h
-+++ b/gcc/config/i386/mingw-w64.h
-@@ -48,7 +48,7 @@ along with GCC; see the file COPYING3.  If not see
- 		 "%{mwindows:-lgdi32 -lcomdlg32} " \
-      "%{fvtable-verify=preinit:-lvtv -lpsapi; \
-         fvtable-verify=std:-lvtv -lpsapi} " \
--		 "-ladvapi32 -lshell32 -luser32 -lkernel32"
-+		 LIB_MCFGTHREAD "-ladvapi32 -lshell32 -luser32 -lkernel32"
- 
- #undef SPEC_32
- #undef SPEC_64
-diff --git a/gcc/config/i386/mingw32.h b/gcc/config/i386/mingw32.h
-index e04818966fa..7b75a372506 100644
---- a/gcc/config/i386/mingw32.h
-+++ b/gcc/config/i386/mingw32.h
-@@ -32,6 +32,14 @@ along with GCC; see the file COPYING3.  If not see
- 	 | MASK_STACK_PROBE | MASK_ALIGN_DOUBLE \
- 	 | MASK_MS_BITFIELD_LAYOUT)
- 
-+#ifndef TARGET_USE_MCFGTHREAD
-+#define CPP_MCFGTHREAD()  ((void)0)
-+#define LIB_MCFGTHREAD     ""
-+#else
-+#define CPP_MCFGTHREAD()  (builtin_define("__USING_MCFGTHREAD__"))
-+#define LIB_MCFGTHREAD     " -lmcfgthread "
-+#endif
-+
- /* See i386/crtdll.h for an alternative definition. _INTEGRAL_MAX_BITS
-    is for compatibility with native compiler.  */
- #define EXTRA_OS_CPP_BUILTINS()					\
-@@ -50,6 +58,7 @@ along with GCC; see the file COPYING3.  If not see
- 	  builtin_define_std ("WIN64");				\
- 	  builtin_define ("_WIN64");				\
- 	}							\
-+	CPP_MCFGTHREAD();	\
-     }								\
-   while (0)
- 
-@@ -93,7 +102,7 @@ along with GCC; see the file COPYING3.  If not see
- 		 "%{mwindows:-lgdi32 -lcomdlg32} " \
-      "%{fvtable-verify=preinit:-lvtv -lpsapi; \
-         fvtable-verify=std:-lvtv -lpsapi} " \
--                 "-ladvapi32 -lshell32 -luser32 -lkernel32"
-+                 LIB_MCFGTHREAD "-ladvapi32 -lshell32 -luser32 -lkernel32"
- 
- /* Weak symbols do not get resolved if using a Windows dll import lib.
-    Make the unwind registration references strong undefs.  */
-diff --git a/gcc/configure b/gcc/configure
-index 954673c1c43..6b5667f1c70 100755
---- a/gcc/configure
-+++ b/gcc/configure
-@@ -11702,7 +11702,7 @@ case ${enable_threads} in
-     target_thread_file='single'
-     ;;
-   aix | dce | lynx | mipssde | posix | rtems | \
--  single | tpf | vxworks | win32)
-+  single | tpf | vxworks | win32 | mcf)
-     target_thread_file=${enable_threads}
-     ;;
-   *)
-diff --git a/gcc/configure.ac b/gcc/configure.ac
-index 4c65d441e72..e6fa04ada4f 100644
---- a/gcc/configure.ac
-+++ b/gcc/configure.ac
-@@ -1593,7 +1593,7 @@ case ${enable_threads} in
-     target_thread_file='single'
-     ;;
-   aix | dce | lynx | mipssde | posix | rtems | \
--  single | tpf | vxworks | win32)
-+  single | tpf | vxworks | win32 | mcf)
-     target_thread_file=${enable_threads}
-     ;;
-   *)
-diff --git a/libatomic/configure.tgt b/libatomic/configure.tgt
-index eab2765d7fd..f4058b6f4a2 100644
---- a/libatomic/configure.tgt
-+++ b/libatomic/configure.tgt
-@@ -124,7 +124,7 @@ case "${target}" in
-   *-*-mingw*)
- 	# OS support for atomic primitives.
-         case ${target_thread_file} in
--          win32)
-+          win32 | mcf)
-             config_path="${config_path} mingw"
-             ;;
-           posix)
-diff --git a/libgcc/config.host b/libgcc/config.host
-index 2b139b8befc..fb18d2a042e 100644
---- a/libgcc/config.host
-+++ b/libgcc/config.host
-@@ -712,6 +712,9 @@ i[34567]86-*-mingw*)
- 	  posix)
- 	    tmake_file="i386/t-mingw-pthread $tmake_file"
- 	    ;;
-+	  mcf)
-+	    tmake_file="i386/t-mingw-mcfgthread $tmake_file"
-+	    ;;
- 	esac
- 	# This has to match the logic for DWARF2_UNWIND_INFO in gcc/config/i386/cygming.h
- 	if test x$ac_cv_sjlj_exceptions = xyes; then
-@@ -736,6 +739,9 @@ x86_64-*-mingw*)
- 	  posix)
- 	    tmake_file="i386/t-mingw-pthread $tmake_file"
- 	    ;;
-+	  mcf)
-+	    tmake_file="i386/t-mingw-mcfgthread $tmake_file"
-+	    ;;
- 	esac
- 	# This has to match the logic for DWARF2_UNWIND_INFO in gcc/config/i386/cygming.h
- 	if test x$ac_cv_sjlj_exceptions = xyes; then
-diff --git a/libgcc/config/i386/gthr-mcf.h b/libgcc/config/i386/gthr-mcf.h
-new file mode 100644
-index 00000000000..5ea2908361f
---- /dev/null
-+++ b/libgcc/config/i386/gthr-mcf.h
-@@ -0,0 +1 @@
-+#include <mcfgthread/gthread.h>
-diff --git a/libgcc/config/i386/t-mingw-mcfgthread b/libgcc/config/i386/t-mingw-mcfgthread
-new file mode 100644
-index 00000000000..4b9b10e32d6
---- /dev/null
-+++ b/libgcc/config/i386/t-mingw-mcfgthread
-@@ -0,0 +1,2 @@
-+SHLIB_PTHREAD_CFLAG =
-+SHLIB_PTHREAD_LDFLAG = -lmcfgthread
-diff --git a/libgcc/configure b/libgcc/configure
-index e7d6c75a6f7..664d0f852c4 100644
---- a/libgcc/configure
-+++ b/libgcc/configure
-@@ -5077,6 +5077,7 @@ case $target_thread_file in
-     tpf)	thread_header=config/s390/gthr-tpf.h ;;
-     vxworks)	thread_header=config/gthr-vxworks.h ;;
-     win32)	thread_header=config/i386/gthr-win32.h ;;
-+    mcf)	thread_header=config/i386/gthr-mcf.h ;;
- esac
- 
- 
-diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
-index b5ae4213f94..c484d3aee5f 100755
---- a/libstdc++-v3/configure
-+++ b/libstdc++-v3/configure
-@@ -15177,6 +15177,7 @@ case $target_thread_file in
-     tpf)	thread_header=config/s390/gthr-tpf.h ;;
-     vxworks)	thread_header=config/gthr-vxworks.h ;;
-     win32)	thread_header=config/i386/gthr-win32.h ;;
-+    mcf)	thread_header=config/i386/gthr-mcf.h ;;
- esac
- 
- 
-diff --git a/libstdc++-v3/libsupc++/atexit_thread.cc b/libstdc++-v3/libsupc++/atexit_thread.cc
-index e6520c1094f..3d6907796dd 100644
---- a/libstdc++-v3/libsupc++/atexit_thread.cc
-+++ b/libstdc++-v3/libsupc++/atexit_thread.cc
-@@ -25,6 +25,22 @@
- #include <cstdlib>
- #include <new>
- #include "bits/gthr.h"
-+
-+#ifdef __USING_MCFGTHREAD__
-+
-+#include <mcfgthread/gthread.h>
-+
-+extern "C" int
-+__cxxabiv1::__cxa_thread_atexit (void (*dtor)(void *),
-+				 void *obj, void *dso_handle)
-+  _GLIBCXX_NOTHROW
-+{
-+  return ::_MCFCRT_AtThreadExit((void (*)(_MCFCRT_STD intptr_t))dtor, (_MCFCRT_STD intptr_t)obj) ? 0 : -1;
-+  (void)dso_handle;
-+}
-+
-+#else // __USING_MCFGTHREAD__
-+
- #ifdef _GLIBCXX_THREAD_ATEXIT_WIN32
- #define WIN32_LEAN_AND_MEAN
- #include <windows.h>
-@@ -163,3 +179,5 @@ __cxxabiv1::__cxa_thread_atexit (void (*dtor)(void *), void *obj, void */*dso_ha
- }
- 
- #endif /* _GLIBCXX_HAVE___CXA_THREAD_ATEXIT_IMPL */
-+
-+#endif // __USING_MCFGTHREAD__
-diff --git a/libstdc++-v3/libsupc++/guard.cc b/libstdc++-v3/libsupc++/guard.cc
-index 9b617998ffe..a441fdbb616 100644
---- a/libstdc++-v3/libsupc++/guard.cc
-+++ b/libstdc++-v3/libsupc++/guard.cc
-@@ -28,6 +28,27 @@
- #include <cxxabi.h>
- #include <exception>
- #include <new>
-+
-+#ifdef __USING_MCFGTHREAD__
-+
-+#include <mcfgthread/gthread.h>
-+
-+namespace __cxxabiv1 {
-+
-+extern "C" int __cxa_guard_acquire(__guard *g){
-+	return ::_MCFCRT_WaitForOnceFlagForever((::_MCFCRT_OnceFlag *)g) == ::_MCFCRT_kOnceResultInitial;
-+}
-+extern "C" void __cxa_guard_abort(__guard *g) throw() {
-+	::_MCFCRT_SignalOnceFlagAsAborted((::_MCFCRT_OnceFlag *)g);
-+}
-+extern "C" void __cxa_guard_release(__guard *g) throw() {
-+	::_MCFCRT_SignalOnceFlagAsFinished((::_MCFCRT_OnceFlag *)g);
-+}
-+
-+}
-+
-+#else // __USING_MCFGTHREAD__
-+
- #include <ext/atomicity.h>
- #include <ext/concurrence.h>
- #if defined(__GTHREADS) && defined(__GTHREAD_HAS_COND) \
-@@ -424,3 +445,5 @@ namespace __cxxabiv1
- #endif
-   }
- }
-+
-+#endif
--- 
-2.12.1
-
diff --git a/nixpkgs/pkgs/development/compilers/gcc/6/default.nix b/nixpkgs/pkgs/development/compilers/gcc/6/default.nix
deleted file mode 100644
index f443babb4b70..000000000000
--- a/nixpkgs/pkgs/development/compilers/gcc/6/default.nix
+++ /dev/null
@@ -1,372 +0,0 @@
-{ lib, stdenv, targetPackages, fetchurl, fetchpatch, fetchFromGitHub, noSysDirs
-, langC ? true, langCC ? true, langFortran ? false
-, langAda ? false
-, langObjC ? stdenv.targetPlatform.isDarwin
-, langObjCpp ? stdenv.targetPlatform.isDarwin
-, langJava ? false
-, langGo ? false
-, reproducibleBuild ? true
-, profiledCompiler ? false
-, langJit ? false
-, staticCompiler ? false
-, enableShared ? stdenv.targetPlatform.hasSharedLibraries
-, enableLTO ? stdenv.hostPlatform.hasSharedLibraries
-, texinfo ? null
-, flex
-, perl ? null # optional, for texi2pod (then pod2man); required for Java
-, gmp, mpfr, libmpc, gettext, which, patchelf, binutils
-, isl ? null # optional, for the Graphite optimization framework.
-, zlib ? null, boehmgc ? null
-, gnat-bootstrap ? null
-, zip ? null, unzip ? null, pkg-config ? null
-, gtk2 ? null, libart_lgpl ? null
-, libX11 ? null, libXt ? null, libSM ? null, libICE ? null, libXtst ? null
-, libXrender ? null, xorgproto ? null
-, libXrandr ? null, libXi ? null
-, x11Support ? langJava
-, enableMultilib ? false
-, enablePlugin ? stdenv.hostPlatform == stdenv.buildPlatform # Whether to support user-supplied plug-ins
-, name ? "gcc"
-, libcCross ? null
-, threadsCross ? null # for MinGW
-, withoutTargetLibc ? false
-, gnused ? null
-, cloog ? null # unused; just for compat with gcc4, as we override the parameter on some places
-, buildPackages
-, callPackage
-}:
-
-assert langJava     -> zip != null && unzip != null
-                       && zlib != null && boehmgc != null
-                       && perl != null;  # for `--enable-java-home'
-
-# Make sure we get GNU sed.
-assert stdenv.buildPlatform.isDarwin -> gnused != null;
-
-# The go frontend is written in c++
-assert langGo -> langCC;
-
-assert langAda -> gnat-bootstrap != null;
-
-# threadsCross is just for MinGW
-assert threadsCross != {} -> stdenv.targetPlatform.isWindows;
-
-# profiledCompiler builds inject non-determinism in one of the compilation stages.
-# If turned on, we can't provide reproducible builds anymore
-assert reproducibleBuild -> profiledCompiler == false;
-
-with lib;
-with builtins;
-
-let majorVersion = "6";
-    version = "${majorVersion}.5.0";
-
-    inherit (stdenv) buildPlatform hostPlatform targetPlatform;
-
-    patches = [ ../9/fix-struct-redefinition-on-glibc-2.36.patch ]
-    ++ optionals (!stdenv.targetPlatform.isRedox) [
-      ../use-source-date-epoch.patch ./0001-Fix-build-for-glibc-2.31.patch
-
-      # Fix https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80431
-      ../fix-bug-80431.patch
-    ] ++ optional (targetPlatform != hostPlatform) ../libstdc++-target.patch
-      ++ optional noSysDirs ../no-sys-dirs.patch
-      ++ optional langAda ../gnat-cflags.patch
-      ++ optional langAda ./gnat-glibc234.patch
-      ++ optional langFortran ../gfortran-driving.patch
-      ++ optional (targetPlatform.libc == "musl") ../libgomp-dont-force-initial-exec.patch
-      ++ optional langGo ./gogcc-workaround-glibc-2.36.patch
-
-      # Obtain latest patch with ../update-mcfgthread-patches.sh
-      ++ optional (!withoutTargetLibc && targetPlatform.isMinGW && threadsCross.model == "mcf") ./Added-mcf-thread-model-support-from-mcfgthread.patch
-      ++ optional (targetPlatform.libc == "musl" && targetPlatform.isx86_32) (fetchpatch {
-        url = "https://git.alpinelinux.org/aports/plain/main/gcc/gcc-6.1-musl-libssp.patch?id=5e4b96e23871ee28ef593b439f8c07ca7c7eb5bb";
-        sha256 = "1jf1ciz4gr49lwyh8knfhw6l5gvfkwzjy90m7qiwkcbsf4a3fqn2";
-      })
-
-      ++ [ ../libsanitizer-no-cyclades-9.patch ];
-
-    javaEcj = fetchurl {
-      # The `$(top_srcdir)/ecj.jar' file is automatically picked up at
-      # `configure' time.
-
-      # XXX: Eventually we might want to take it from upstream.
-      url = "ftp://sourceware.org/pub/java/ecj-4.3.jar";
-      sha256 = "0jz7hvc0s6iydmhgh5h2m15yza7p2rlss2vkif30vm9y77m97qcx";
-    };
-
-    # Antlr (optional) allows the Java `gjdoc' tool to be built.  We want a
-    # binary distribution here to allow the whole chain to be bootstrapped.
-    javaAntlr = fetchurl {
-      url = "https://www.antlr.org/download/antlr-4.4-complete.jar";
-      sha256 = "02lda2imivsvsis8rnzmbrbp8rh1kb8vmq4i67pqhkwz7lf8y6dz";
-    };
-
-    xlibs = [
-      libX11 libXt libSM libICE libXtst libXrender libXrandr libXi
-      xorgproto
-    ];
-
-    javaAwtGtk = langJava && x11Support;
-
-    /* Cross-gcc settings (build == host != target) */
-    crossMingw = targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt";
-    stageNameAddon = if withoutTargetLibc then "stage-static" else "stage-final";
-    crossNameAddon = optionalString (targetPlatform != hostPlatform) "${targetPlatform.config}-${stageNameAddon}-";
-
-    callFile = lib.callPackageWith {
-      # lets
-      inherit
-        majorVersion
-        version
-        buildPlatform
-        hostPlatform
-        targetPlatform
-        patches
-        javaEcj
-        javaAntlr
-        xlibs
-        javaAwtGtk
-        crossMingw
-        stageNameAddon
-        crossNameAddon
-      ;
-      # inherit generated with 'nix eval --json --impure --expr "with import ./. {}; lib.attrNames (lib.functionArgs gcc6.cc.override)" | jq '.[]' --raw-output'
-      inherit
-        binutils
-        boehmgc
-        buildPackages
-        cloog
-        withoutTargetLibc
-        enableLTO
-        enableMultilib
-        enablePlugin
-        enableShared
-        fetchFromGitHub
-        fetchpatch
-        fetchurl
-        flex
-        gettext
-        gmp
-        gnat-bootstrap
-        gnused
-        gtk2
-        isl
-        langAda
-        langC
-        langCC
-        langFortran
-        langGo
-        langJava
-        langJit
-        langObjC
-        langObjCpp
-        lib
-        libICE
-        libSM
-        libX11
-        libXi
-        libXrandr
-        libXrender
-        libXt
-        libXtst
-        libart_lgpl
-        libcCross
-        libmpc
-        mpfr
-        name
-        noSysDirs
-        patchelf
-        perl
-        pkg-config
-        profiledCompiler
-        reproducibleBuild
-        staticCompiler
-        stdenv
-        targetPackages
-        texinfo
-        threadsCross
-        unzip
-        which
-        x11Support
-        xorgproto
-        zip
-        zlib
-      ;
-    };
-in
-
-# We need all these X libraries when building AWT with GTK.
-assert x11Support -> (filter (x: x == null) ([ gtk2 libart_lgpl ] ++ xlibs)) == [];
-
-lib.pipe (stdenv.mkDerivation ({
-  pname = "${crossNameAddon}${name}";
-  inherit version;
-
-  builder = ../builder.sh;
-
-  src = if stdenv.targetPlatform.isVc4 then fetchFromGitHub {
-    owner = "itszor";
-    repo = "gcc-vc4";
-    rev = "e90ff43f9671c760cf0d1dd62f569a0fb9bf8918";
-    sha256 = "0gxf66hwqk26h8f853sybphqa5ca0cva2kmrw5jsiv6139g0qnp8";
-  } else if stdenv.targetPlatform.isRedox then fetchFromGitHub {
-    owner = "redox-os";
-    repo = "gcc";
-    rev = "f360ac095028d286fc6dde4d02daed48f59813fa"; # `redox` branch
-    sha256 = "1an96h8l58pppyh3qqv90g8hgcfd9hj7igvh2gigmkxbrx94khfl";
-  } else fetchurl {
-    url = "mirror://gnu/gcc/gcc-${version}/gcc-${version}.tar.xz";
-    sha256 = "0i89fksfp6wr1xg9l8296aslcymv2idn60ip31wr9s4pwin7kwby";
-  };
-
-  inherit patches;
-
-  outputs = if langJava || langGo || langJit then ["out" "man" "info"]
-    else [ "out" "lib" "man" "info" ];
-  setOutputFlags = false;
-  NIX_NO_SELF_RPATH = true;
-
-  libc_dev = stdenv.cc.libc_dev;
-
-  hardeningDisable = [ "format" "pie" ];
-
-  postPatch =
-    # This should kill all the stdinc frameworks that gcc and friends like to
-    # insert into default search paths.
-    lib.optionalString hostPlatform.isDarwin ''
-      substituteInPlace gcc/config/darwin-c.c \
-        --replace 'if (stdinc)' 'if (0)'
-
-      substituteInPlace libgcc/config/t-slibgcc-darwin \
-        --replace "-install_name @shlib_slibdir@/\$(SHLIB_INSTALL_NAME)" "-install_name ''${!outputLib}/lib/\$(SHLIB_INSTALL_NAME)"
-
-      substituteInPlace libgfortran/configure \
-        --replace "-install_name \\\$rpath/\\\$soname" "-install_name ''${!outputLib}/lib/\\\$soname"
-    ''
-  + (
-    lib.optionalString (targetPlatform != hostPlatform || stdenv.cc.libc != null)
-      # On NixOS, use the right path to the dynamic linker instead of
-      # `/lib/ld*.so'.
-      (let
-        libc = if libcCross != null then libcCross else stdenv.cc.libc;
-      in
-        (
-        '' echo "fixing the \`GLIBC_DYNAMIC_LINKER', \`UCLIBC_DYNAMIC_LINKER', and \`MUSL_DYNAMIC_LINKER' macros..."
-           for header in "gcc/config/"*-gnu.h "gcc/config/"*"/"*.h
-           do
-             grep -q _DYNAMIC_LINKER "$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' \
-                 -e 's|define[[:blank:]]*MUSL_DYNAMIC_LINKER\([0-9]*\)[[:blank:]]"\([^\"]\+\)"$|define MUSL_DYNAMIC_LINKER\1 "${libc.out}\2"|g'
-           done
-        ''
-        + lib.optionalString (targetPlatform.libc == "musl")
-        ''
-            sed -i gcc/config/linux.h -e '1i#undef LOCAL_INCLUDE_DIR'
-        ''
-        ))
-    );
-
-  inherit noSysDirs staticCompiler langJava withoutTargetLibc
-    libcCross crossMingw;
-
-  inherit (callFile ../common/dependencies.nix { })
-    depsBuildBuild nativeBuildInputs depsBuildTarget buildInputs depsTargetTarget;
-
-  NIX_LDFLAGS = lib.optionalString  hostPlatform.isSunOS "-lm";
-
-  preConfigure = callFile ../common/pre-configure.nix { };
-
-  dontDisableStatic = true;
-
-  configurePlatforms = [ "build" "host" "target" ];
-
-  configureFlags = callFile ../common/configure-flags.nix { };
-
-  targetConfig = if targetPlatform != hostPlatform then targetPlatform.config else null;
-
-  buildFlags = optional
-    (targetPlatform == hostPlatform && hostPlatform == buildPlatform)
-    (if profiledCompiler then "profiledbootstrap" else "bootstrap");
-
-  # https://gcc.gnu.org/PR109898
-  enableParallelInstalling = false;
-
-  inherit (callFile ../common/strip-attributes.nix { })
-    stripDebugList
-    stripDebugListTarget
-    preFixup;
-
-  doCheck = false; # requires a lot of tools, causes a dependency cycle for stdenv
-
-  # 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.
-  #
-  # Note: When building the Java AWT GTK peer, the build system doesn't honor
-  # `--with-gmp' et al., e.g., when building
-  # `libjava/classpath/native/jni/java-math/gnu_java_math_GMP.c', so we just add
-  # them to $CPATH and $LIBRARY_PATH in this case.
-  #
-  # Likewise, the LTO code doesn't find zlib.
-  #
-  # Cross-compiling, we need gcc not to read ./specs in order to build the g++
-  # compiler (after the specs for the cross-gcc are created). Having
-  # LIBRARY_PATH= makes gcc read the specs from ., and the build breaks.
-
-  CPATH = optionals (targetPlatform == hostPlatform) (makeSearchPathOutput "dev" "include" ([]
-    ++ optional (zlib != null) zlib
-    ++ optional langJava boehmgc
-    ++ optionals javaAwtGtk xlibs
-    ++ optionals javaAwtGtk [ gmp mpfr ]
-  ));
-
-  LIBRARY_PATH = optionals (targetPlatform == hostPlatform) (makeLibraryPath ([]
-    ++ optional (zlib != null) zlib
-    ++ optional langJava boehmgc
-    ++ optionals javaAwtGtk xlibs
-    ++ optionals javaAwtGtk [ gmp mpfr ]
-  ));
-
-  inherit (callFile ../common/extra-target-flags.nix { })
-    EXTRA_FLAGS_FOR_TARGET
-    EXTRA_LDFLAGS_FOR_TARGET
-    ;
-
-  passthru = {
-    inherit langC langCC langObjC langObjCpp langFortran langAda langGo version;
-    isGNU = true;
-    hardeningUnsupportedFlags = [ "fortify3" ];
-  };
-
-  enableParallelBuilding = true;
-  inherit enableShared enableMultilib;
-
-  meta = {
-    inherit (callFile ../common/meta.nix { })
-      homepage
-      license
-      description
-      longDescription
-      platforms
-      maintainers
-    ;
-    badPlatforms = [ "aarch64-darwin" ];
-  };
-}
-
-// optionalAttrs (enableMultilib) { dontMoveLib64 = true; }
-
-// optionalAttrs (langJava && !stdenv.hostPlatform.isDarwin) {
-     postFixup = ''
-       target="$(echo "$out/libexec/gcc"/*/*/ecj*)"
-       patchelf --set-rpath "$(patchelf --print-rpath "$target"):$out/lib" "$target"
-     '';}
-))
-[
-  (callPackage ../common/libgcc.nix   { inherit version langC langCC langJit targetPlatform hostPlatform withoutTargetLibc enableShared; })
-]
diff --git a/nixpkgs/pkgs/development/compilers/gcc/6/fix-objdump-check.patch b/nixpkgs/pkgs/development/compilers/gcc/6/fix-objdump-check.patch
deleted file mode 100644
index f9adbe9eb1ca..000000000000
--- a/nixpkgs/pkgs/development/compilers/gcc/6/fix-objdump-check.patch
+++ /dev/null
@@ -1,43 +0,0 @@
-commit 4c38abe0967bad78dd6baa61c86923e4d4b346d3
-Author: Ben Gamari <ben@smart-cactus.org>
-Date:   Sun Nov 5 13:14:19 2017 -0500
-
-    Fix it
-
-diff --git a/config/gcc-plugin.m4 b/config/gcc-plugin.m4
-index dd06a58..f4435b8 100644
---- a/config/gcc-plugin.m4
-+++ b/config/gcc-plugin.m4
-@@ -13,6 +13,32 @@ dnl the same distribution terms as the rest of that program.
- # Sets the shell variables enable_plugin and pluginlibs.
- AC_DEFUN([GCC_ENABLE_PLUGINS],
-   [# Check for plugin support
-+
-+   # Figure out what objdump we will be using.
-+   AS_VAR_SET_IF(gcc_cv_objdump,, [
-+   if test -f $gcc_cv_binutils_srcdir/configure.ac \
-+        && test -f ../binutils/Makefile \
-+        && test x$build = x$host; then
-+   	# Single tree build which includes binutils.
-+   	gcc_cv_objdump=../binutils/objdump$build_exeext
-+   elif test -x objdump$build_exeext; then
-+   	gcc_cv_objdump=./objdump$build_exeext
-+   elif ( set dummy $OBJDUMP_FOR_TARGET; test -x $[2] ); then
-+           gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
-+   else
-+           AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
-+   fi])
-+   
-+   AC_MSG_CHECKING(what objdump to use)
-+   if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
-+   	# Single tree build which includes binutils.
-+   	AC_MSG_RESULT(newly built objdump)
-+   elif test x$gcc_cv_objdump = x; then
-+   	AC_MSG_RESULT(not found)
-+   else
-+   	AC_MSG_RESULT($gcc_cv_objdump)
-+   fi
-+
-    AC_ARG_ENABLE(plugin,
-    [AS_HELP_STRING([--enable-plugin], [enable plugin support])],
-    enable_plugin=$enableval,
diff --git a/nixpkgs/pkgs/development/compilers/gcc/6/gnat-glibc234.patch b/nixpkgs/pkgs/development/compilers/gcc/6/gnat-glibc234.patch
deleted file mode 100644
index 2d29cd7fa77f..000000000000
--- a/nixpkgs/pkgs/development/compilers/gcc/6/gnat-glibc234.patch
+++ /dev/null
@@ -1,30 +0,0 @@
-Fix build with glibc 2.34.  Adapted from:
-https://github.com/gcc-mirror/gcc/commit/331763de7d4850702a0f67298f36017c73cdb103
---- a/gcc/ada/init.c
-+++ b/gcc/ada/init.c
-@@ -579,12 +579,8 @@
- 
- #ifndef __ia64__
- #define HAVE_GNAT_ALTERNATE_STACK 1
--/* This must be in keeping with System.OS_Interface.Alternate_Stack_Size.
--   It must be larger than MINSIGSTKSZ and hopefully near 2 * SIGSTKSZ.  */
--# if 16 * 1024 < MINSIGSTKSZ
--#  error "__gnat_alternate_stack too small"
--# endif
--char __gnat_alternate_stack[16 * 1024];
-+/* This must be in keeping with System.OS_Interface.Alternate_Stack_Size.  */
-+char __gnat_alternate_stack[32 * 1024];
- #endif
- 
- #ifdef __XENO__
---- a/gcc/ada/s-osinte-linux.ads
-+++ b/gcc/ada/s-osinte-linux.ads
-@@ -328,7 +328,7 @@
-       oss : access stack_t) return int;
-    pragma Import (C, sigaltstack, "sigaltstack");
- 
--   Alternate_Stack_Size : constant := 16 * 1024;
-+   Alternate_Stack_Size : constant := 32 * 1024;
-    --  This must be in keeping with init.c:__gnat_alternate_stack
- 
-    Alternate_Stack : aliased char_array (1 .. Alternate_Stack_Size);
diff --git a/nixpkgs/pkgs/development/compilers/gcc/6/gogcc-workaround-glibc-2.36.patch b/nixpkgs/pkgs/development/compilers/gcc/6/gogcc-workaround-glibc-2.36.patch
deleted file mode 100644
index bc11f990e5e9..000000000000
--- a/nixpkgs/pkgs/development/compilers/gcc/6/gogcc-workaround-glibc-2.36.patch
+++ /dev/null
@@ -1,14 +0,0 @@
-diff --git a/libgo/mksysinfo.sh b/libgo/mksysinfo.sh
-index dd456e907..24e607c7b 100755
---- a/libgo/mksysinfo.sh
-+++ b/libgo/mksysinfo.sh
-@@ -148,9 +148,6 @@ cat > sysinfo.c <<EOF
- #if defined(HAVE_LINUX_ETHER_H)
- #include <linux/ether.h>
- #endif
--#if defined(HAVE_LINUX_FS_H)
--#include <linux/fs.h>
--#endif
- #if defined(HAVE_LINUX_REBOOT_H)
- #include <linux/reboot.h>
- #endif