295 lines
10 KiB
Nix
295 lines
10 KiB
Nix
/* Build configuration used to build glibc, Info files, and locale
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information.
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Note that this derivation has multiple outputs and does not respect the
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standard convention of putting the executables into the first output. The
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first output is `lib` so that the libraries provided by this derivation
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can be accessed directly, e.g.
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"${pkgs.glibc}/lib/ld-linux-x86_64.so.2"
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The executables are put into `bin` output and need to be referenced via
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the `bin` attribute of the main package, e.g.
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"${pkgs.glibc.bin}/bin/ldd".
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The executables provided by glibc typically include `ldd`, `locale`, `iconv`
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but the exact set depends on the library version and the configuration.
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*/
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# Note: this package is used for bootstrapping fetchurl, and thus
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# cannot use fetchpatch! All mutable patches (generated by GitHub or
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# cgit) that are needed here should be included directly in Nixpkgs as
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# files.
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{ stdenv, lib
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, buildPackages
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, fetchurl
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, linuxHeaders ? null
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, gd ? null, libpng ? null
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, libidn2
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, bison
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, python3Minimal
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}:
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{ pname
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, withLinuxHeaders ? false
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, profilingLibraries ? false
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, withGd ? false
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, meta
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, ...
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} @ args:
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let
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version = "2.33";
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patchSuffix = "-50";
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sha256 = "sha256-LiVWAA4QXb1X8Layoy/yzxc73k8Nhd/8z9i35RoGd/8=";
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in
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assert withLinuxHeaders -> linuxHeaders != null;
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assert withGd -> gd != null && libpng != null;
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stdenv.mkDerivation ({
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version = version + patchSuffix;
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linuxHeaders = if withLinuxHeaders then linuxHeaders else null;
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inherit (stdenv) is64bit;
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enableParallelBuilding = true;
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patches =
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[
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/* No tarballs for stable upstream branch, only https://sourceware.org/git/glibc.git and using git would complicate bootstrapping.
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$ git fetch --all -p && git checkout origin/release/2.33/master && git describe
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glibc-2.33-50-gc6cadbf83a
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$ git show --minimal --reverse glibc-2.33.. | gzip -9n --rsyncable - > 2.33-master.patch.gz
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To compare the archive contents zdiff can be used.
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$ zdiff -u 2.33-master.patch.gz ../nixpkgs/pkgs/development/libraries/glibc/2.33-master.patch.gz
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*/
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./2.33-master.patch.gz
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/* Allow NixOS and Nix to handle the locale-archive. */
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./nix-locale-archive.patch
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/* Don't use /etc/ld.so.cache, for non-NixOS systems. */
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./dont-use-system-ld-so-cache.patch
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/* Don't use /etc/ld.so.preload, but /etc/ld-nix.so.preload. */
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./dont-use-system-ld-so-preload.patch
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/* The command "getconf CS_PATH" returns the default search path
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"/bin:/usr/bin", which is inappropriate on NixOS machines. This
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patch extends the search path by "/run/current-system/sw/bin". */
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./fix_path_attribute_in_getconf.patch
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/* Allow running with RHEL 6 -like kernels. The patch adds an exception
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for glibc to accept 2.6.32 and to tag the ELFs as 2.6.32-compatible
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(otherwise the loader would refuse libc).
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Note that glibc will fully work only on their heavily patched kernels
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and we lose early mismatch detection on 2.6.32.
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On major glibc updates we should check that the patched kernel supports
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all the required features. ATM it's verified up to glibc-2.26-131.
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# HOWTO: check glibc sources for changes in kernel requirements
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git log -p glibc-2.25.. sysdeps/unix/sysv/linux/x86_64/kernel-features.h sysdeps/unix/sysv/linux/kernel-features.h
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# get kernel sources (update the URL)
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mkdir tmp && cd tmp
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curl http://vault.centos.org/6.9/os/Source/SPackages/kernel-2.6.32-696.el6.src.rpm | rpm2cpio - | cpio -idmv
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tar xf linux-*.bz2
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# check syscall presence, for example
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less linux-*?/arch/x86/kernel/syscall_table_32.S
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*/
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./allow-kernel-2.6.32.patch
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/* Provide a fallback for missing prlimit64 syscall on RHEL 6 -like
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kernels.
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This patch is maintained by @veprbl. If it gives you trouble, feel
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free to ping me, I'd be happy to help.
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*/
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(fetchurl {
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url = "https://git.savannah.gnu.org/cgit/guix.git/plain/gnu/packages/patches/glibc-reinstate-prlimit64-fallback.patch?id=eab07e78b691ae7866267fc04d31c7c3ad6b0eeb";
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sha256 = "091bk3kyrx1gc380gryrxjzgcmh1ajcj8s2rjhp2d2yzd5mpd5ps";
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})
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/* Provide utf-8 locales by default, so we can use it in stdenv without depending on our large locale-archive. */
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(fetchurl {
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url = "https://salsa.debian.org/glibc-team/glibc/raw/49767c9f7de4828220b691b29de0baf60d8a54ec/debian/patches/localedata/locale-C.diff";
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sha256 = "0irj60hs2i91ilwg5w7sqrxb695c93xg0ik7yhhq9irprd7fidn4";
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})
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./fix-x64-abi.patch
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/* https://github.com/NixOS/nixpkgs/pull/137601 */
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./nix-nss-open-files.patch
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]
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++ lib.optional stdenv.hostPlatform.isMusl ./fix-rpc-types-musl-conflicts.patch
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++ lib.optional stdenv.buildPlatform.isDarwin ./darwin-cross-build.patch;
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postPatch =
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''
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# Needed for glibc to build with the gnumake 3.82
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# http://comments.gmane.org/gmane.linux.lfs.support/31227
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sed -i 's/ot \$/ot:\n\ttouch $@\n$/' manual/Makefile
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# nscd needs libgcc, and we don't want it dynamically linked
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# because we don't want it to depend on bootstrap-tools libs.
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echo "LDFLAGS-nscd += -static-libgcc" >> nscd/Makefile
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''
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# FIXME: find a solution for infinite recursion in cross builds.
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# For now it's hopefully acceptable that IDN from libc doesn't reliably work.
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+ lib.optionalString (stdenv.hostPlatform == stdenv.buildPlatform) ''
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# Ensure that libidn2 is found.
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patch -p 1 <<EOF
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--- a/inet/idna.c
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+++ b/inet/idna.c
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@@ -25,1 +25,1 @@
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-#define LIBIDN2_SONAME "libidn2.so.0"
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+#define LIBIDN2_SONAME "${lib.getLib libidn2}/lib/libidn2.so.0"
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EOF
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'';
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configureFlags =
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[ "-C"
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"--enable-add-ons"
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"--sysconfdir=/etc"
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"--enable-stackguard-randomization"
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"--enable-bind-now"
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(lib.withFeatureAs withLinuxHeaders "headers" "${linuxHeaders}/include")
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(lib.enableFeature profilingLibraries "profile")
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] ++ lib.optionals (stdenv.hostPlatform.isx86_64 || stdenv.hostPlatform.isi686 || stdenv.hostPlatform.isAarch64) [
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# This feature is currently supported on
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# i386, x86_64 and x32 with binutils 2.29 or later,
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# and on aarch64 with binutils 2.30 or later.
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# https://sourceware.org/glibc/wiki/PortStatus
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"--enable-static-pie"
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] ++ lib.optionals withLinuxHeaders [
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"--enable-kernel=3.2.0" # can't get below with glibc >= 2.26
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] ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
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(lib.flip lib.withFeature "fp"
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(stdenv.hostPlatform.gcc.float or (stdenv.hostPlatform.parsed.abi.float or "hard") == "soft"))
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"--with-__thread"
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] ++ lib.optionals (stdenv.hostPlatform == stdenv.buildPlatform && stdenv.hostPlatform.isAarch32) [
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"--host=arm-linux-gnueabi"
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"--build=arm-linux-gnueabi"
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# To avoid linking with -lgcc_s (dynamic link)
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# so the glibc does not depend on its compiler store path
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"libc_cv_as_needed=no"
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] ++ lib.optional withGd "--with-gd";
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makeFlags = [
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"OBJCOPY=${stdenv.cc.targetPrefix}objcopy"
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];
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installFlags = [ "sysconfdir=$(out)/etc" ];
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outputs = [ "out" "bin" "dev" "static" ];
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depsBuildBuild = [ buildPackages.stdenv.cc ];
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nativeBuildInputs = [ bison python3Minimal ];
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buildInputs = [ linuxHeaders ] ++ lib.optionals withGd [ gd libpng ];
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# Needed to install share/zoneinfo/zone.tab. Set to impure /bin/sh to
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# prevent a retained dependency on the bootstrap tools in the stdenv-linux
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# bootstrap.
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BASH_SHELL = "/bin/sh";
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# Used by libgcc, elf-header, and others to determine ABI
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passthru = { inherit version; };
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}
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// (removeAttrs args [ "withLinuxHeaders" "withGd" ]) //
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{
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src = fetchurl {
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url = "mirror://gnu/glibc/glibc-${version}.tar.xz";
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inherit sha256;
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};
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# Remove absolute paths from `configure' & co.; build out-of-tree.
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preConfigure = ''
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export PWD_P=$(type -tP pwd)
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for i in configure io/ftwtest-sh; do
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# Can't use substituteInPlace here because replace hasn't been
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# built yet in the bootstrap.
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sed -i "$i" -e "s^/bin/pwd^$PWD_P^g"
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done
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mkdir ../build
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cd ../build
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configureScript="`pwd`/../$sourceRoot/configure"
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${lib.optionalString (stdenv.cc.libc != null)
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''makeFlags="$makeFlags BUILD_LDFLAGS=-Wl,-rpath,${stdenv.cc.libc}/lib OBJDUMP=${stdenv.cc.bintools.bintools}/bin/objdump"''
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}
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'' + lib.optionalString (stdenv.hostPlatform != stdenv.buildPlatform) ''
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sed -i s/-lgcc_eh//g "../$sourceRoot/Makeconfig"
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cat > config.cache << "EOF"
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libc_cv_forced_unwind=yes
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libc_cv_c_cleanup=yes
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libc_cv_gnu89_inline=yes
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EOF
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# ./configure has logic like
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#
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# AR=`$CC -print-prog-name=ar`
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#
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# This searches various directories in the gcc and its wrapper. In nixpkgs,
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# this returns the bare string "ar", which is build ar. This can result as
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# a build failure with the following message:
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#
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# libc_pic.a: error adding symbols: archive has no index; run ranlib to add one
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#
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# (Observed cross compiling from aarch64-linux -> armv7l-linux).
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#
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# Nixpkgs passes a correct value for AR and friends, so to use the correct
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# set of tools, we only need to delete this special handling.
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sed -i \
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-e '/^AR=/d' \
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-e '/^AS=/d' \
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-e '/^LD=/d' \
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-e '/^OBJCOPY=/d' \
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-e '/^OBJDUMP=/d' \
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$configureScript
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'';
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preBuild = lib.optionalString withGd "unset NIX_DONT_SET_RPATH";
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doCheck = false; # fails
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meta = with lib; {
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homepage = "https://www.gnu.org/software/libc/";
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description = "The GNU C Library";
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longDescription =
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'' Any Unix-like operating system needs a C library: the library which
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defines the "system calls" and other basic facilities such as
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open, malloc, printf, exit...
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The GNU C library is used as the C library in the GNU system and
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most systems with the Linux kernel.
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'';
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license = licenses.lgpl2Plus;
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maintainers = with maintainers; [ eelco ma27 ];
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platforms = platforms.linux;
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} // meta;
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}
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// lib.optionalAttrs (stdenv.hostPlatform != stdenv.buildPlatform) {
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preInstall = null; # clobber the native hook
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# To avoid a dependency on the build system 'bash'.
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preFixup = ''
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rm -f $bin/bin/{ldd,tzselect,catchsegv,xtrace}
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'';
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})
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