nixpkgs/pkgs/development/libraries/libelf/default.nix
Randy Eckenrode 9cd4e84a4d
libelf: fix build with clang 16 on Darwin
Clang 16 does not allow `main` with an implicit `int`, which causes the
configure script to misdetect clang as a non-working compiler. Patching
`configure.in` and regenerating `configure` allows libelf to build.

Due to the comment regarding bootstrap tools, this patching is only done
on Darwin with clang.
2023-06-01 21:11:00 -04:00

79 lines
3.1 KiB
Nix

{ lib, stdenv
, fetchurl, autoreconfHook, gettext, freebsd, netbsd
}:
# Note: this package is used for bootstrapping fetchurl, and thus
# cannot use fetchpatch! All mutable patches (generated by GitHub or
# cgit) that are needed here should be included directly in Nixpkgs as
# files.
stdenv.mkDerivation rec {
pname = "libelf";
version = "0.8.13";
src = fetchurl {
url = "https://fossies.org/linux/misc/old/${pname}-${version}.tar.gz";
sha256 = "0vf7s9dwk2xkmhb79aigqm0x0yfbw1j0b9ksm51207qwr179n6jr";
};
patches = [
./dont-hardcode-ar.patch
# Fix warnings from preprocessor instructions.
# https://github.com/NixOS/nixpkgs/issues/59929
./preprocessor-warnings.patch
# `configure` defines a test `main` with an implicit `int` return, which clang 16 disallows.
./fix-configure-main.patch
];
enableParallelBuilding = true;
# Lacks dependencies:
# mkdir ...-libelf-0.8.13/lib
# mkdir ...-libelf-0.8.13/lib
# mkdir: cannot create directory '...-libelf-0.8.13/lib': File exists
enableParallelInstalling = false;
doCheck = true;
preConfigure = if !stdenv.hostPlatform.useAndroidPrebuilt then null else ''
sed -i 's|DISTSUBDIRS = lib po|DISTSUBDIRS = lib|g' Makefile.in
sed -i 's|SUBDIRS = lib @POSUB@|SUBDIRS = lib|g' Makefile.in
'';
configureFlags = []
# Configure check for dynamic lib support is broken, see
# http://lists.uclibc.org/pipermail/uclibc-cvs/2005-August/019383.html
++ lib.optional (stdenv.hostPlatform != stdenv.buildPlatform) "mr_cv_target_elf=yes"
# Libelf's custom NLS macros fail to determine the catalog file extension
# on Darwin, so disable NLS for now.
++ lib.optional stdenv.hostPlatform.isDarwin "--disable-nls";
strictDeps = true;
nativeBuildInputs =
(if stdenv.hostPlatform.isFreeBSD then [ freebsd.gencat ]
else if stdenv.hostPlatform.isNetBSD then [ netbsd.gencat ]
else [ gettext ])
# Need to regenerate configure script with newer version in order to pass
# "mr_cv_target_elf=yes" and determine integer sizes correctly when
# cross-compiling, but `autoreconfHook` brings in `makeWrapper` which
# doesn't work with the bootstrapTools bash, so can only do this for
# cross builds when `stdenv.shell` is a newer bash.
++ lib.optional (stdenv.hostPlatform != stdenv.buildPlatform
# The provided `configure` script fails on clang 16 because some tests have a `main`
# returning an implicit `int`, which clang 16 treats as an error. Running `autoreconf` fixes
# the test and allows `configure` to detect clang properly.
# This is done only for clang on Darwin because the Darwin stdenv bootstrap does not use
# libelf, so should be safe because it will always be run with a compatible version of bash.
|| (stdenv.cc.isClang && stdenv.isDarwin)) autoreconfHook;
meta = {
description = "ELF object file access library";
homepage = "https://github.com/Distrotech/libelf";
license = lib.licenses.lgpl2Plus;
platforms = lib.platforms.all;
maintainers = [ ];
};
}