nixpkgs/pkgs/shells/bash/5.1.nix
Arnout Engelen 3f4ad3d37d
bash: don't rely on patch timestamps in build
When, after patching, `configure.ac` is newer than `configure`, the
Makefile will try to regenerate `configure` from `configure.ac`.

While that might usually be desirable, in this case we want to keep
bootstrapping simple and directly use the `configure` from the package
so we can avoid a dependency on automake.

Previously, we used the `-T` parameter to automake to make sure the
timestamps were okay. However, this is brittle when we update: when the
timestamp of the original file changes, and no longer matches the
timestamp of the original file in the patch, `patch` will show a warning
but otherwise continue without updating the timestamp.

This PR changes things so we only patch `configure`, so that will always
have a newer timestamp.

Refs https://github.com/NixOS/nixpkgs/issues/115177
2021-03-21 16:11:09 +01:00

133 lines
3.7 KiB
Nix

{ lib, stdenv
, buildPackages
, fetchurl
, binutils ? null
, bison
, util-linux
# patch for cygwin requires readline support
, interactive ? stdenv.isCygwin
, readline80 ? null
, withDocs ? false
, texinfo ? null
}:
with lib;
assert interactive -> readline80 != null;
assert withDocs -> texinfo != null;
assert stdenv.hostPlatform.isDarwin -> binutils != null;
let
upstreamPatches = import ./bash-5.1-patches.nix (nr: sha256: fetchurl {
url = "mirror://gnu/bash/bash-5.1-patches/bash51-${nr}";
inherit sha256;
});
in
stdenv.mkDerivation rec {
name = "bash-${optionalString interactive "interactive-"}${version}-p${toString (builtins.length upstreamPatches)}";
version = "5.1";
src = fetchurl {
url = "mirror://gnu/bash/bash-${version}.tar.gz";
sha256 = "1alv68wplnfdm6mh39hm57060xgssb9vqca4yr1cyva0c342n0fc";
};
hardeningDisable = [ "format" ];
outputs = [ "out" "dev" "man" "doc" "info" ];
NIX_CFLAGS_COMPILE = ''
-DSYS_BASHRC="/etc/bashrc"
-DSYS_BASH_LOGOUT="/etc/bash_logout"
-DDEFAULT_PATH_VALUE="/no-such-path"
-DSTANDARD_UTILS_PATH="/no-such-path"
-DNON_INTERACTIVE_LOGIN_SHELLS
-DSSH_SOURCE_BASHRC
'';
patchFlags = [ "-p0" ];
patches = upstreamPatches
++ [ ./pgrp-pipe-5.1.patch ];
configureFlags = [
(if interactive then "--with-installed-readline" else "--disable-readline")
] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
"bash_cv_job_control_missing=nomissing"
"bash_cv_sys_named_pipes=nomissing"
"bash_cv_getcwd_malloc=yes"
] ++ optionals stdenv.hostPlatform.isCygwin [
"--without-libintl-prefix"
"--without-libiconv-prefix"
"--with-installed-readline"
"bash_cv_dev_stdin=present"
"bash_cv_dev_fd=standard"
"bash_cv_termcap_lib=libncurses"
] ++ optionals (stdenv.hostPlatform.libc == "musl") [
"--without-bash-malloc"
"--disable-nls"
];
# Note: Bison is needed because the patches above modify parse.y.
depsBuildBuild = [ buildPackages.stdenv.cc ];
nativeBuildInputs = [ bison ]
++ optional withDocs texinfo
++ optional stdenv.hostPlatform.isDarwin binutils;
buildInputs = optional interactive readline80;
enableParallelBuilding = true;
makeFlags = optional stdenv.hostPlatform.isCygwin [
"LOCAL_LDFLAGS=-Wl,--export-all,--out-implib,libbash.dll.a"
"SHOBJ_LIBS=-lbash"
];
checkInputs = [ util-linux ];
doCheck = false; # dependency cycle, needs to be interactive
postInstall = ''
ln -s bash "$out/bin/sh"
rm -f $out/lib/bash/Makefile.inc
'';
postFixup =
if interactive
then ''
substituteInPlace "$out/bin/bashbug" \
--replace '${stdenv.shell}' "$out/bin/bash"
''
# most space is taken by locale data
else ''
rm -rf "$out/share" "$out/bin/bashbug"
'';
meta = with lib; {
homepage = "https://www.gnu.org/software/bash/";
description =
"GNU Bourne-Again Shell, the de facto standard shell on Linux" +
(if interactive then " (for interactive use)" else "");
longDescription = ''
Bash is the shell, or command language interpreter, that will
appear in the GNU operating system. Bash is an sh-compatible
shell that incorporates useful features from the Korn shell
(ksh) and C shell (csh). It is intended to conform to the IEEE
POSIX P1003.2/ISO 9945.2 Shell and Tools standard. It offers
functional improvements over sh for both programming and
interactive use. In addition, most sh scripts can be run by
Bash without modification.
'';
license = licenses.gpl3Plus;
platforms = platforms.all;
maintainers = with maintainers; [ peti dtzWill ];
};
passthru = {
shellPath = "/bin/bash";
};
}