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_build.sh
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#!/usr/bin/env bash
# Copyright (C) Viktor Szakats. See LICENSE.md
# SPDX-License-Identifier: MIT
# shellcheck disable=SC3040,SC2039
set -o xtrace -o errexit -o nounset; [ -n "${BASH:-}${ZSH_NAME:-}" ] && set -o pipefail
# Build configuration environment variables:
#
# CW_BLD
# List of components to build. E.g. 'curl' or 'zlib libssh2 curl' or 'zlib curl-cmake' or 'none'.
# Optional. Default: (all)
#
# CW_GET
# List of components to (re-)download. E.g. 'zlib curl' or 'none'.
# Optional. Default: (all)
#
# CW_NOGET
# List of components to never download. E.g. 'curl'.
# Optional. Default: (none)
#
# CW_LLVM_MINGW_PATH
# Point to LLVM MinGW installation (for win target).
#
# CW_LLVM_MINGW_ONLY
# Use llvm-mingw for all Windows builds. Default: 0
#
# CW_CONFIG
# Build configuration. Certain keywords select certain configurations. E.g.: 'main-micro'.
# Optional. Default: 'main' (inherited from the active repo branch name)
#
# Supported keywords:
# main production build
# test test build (.map files enabled by default, publishing disabled)
# dev development build (use source snapshots instead of stable releases)
# noh3 build without HTTP/3 (QUIC) support
# nobrotli build without brotli
# nozstd build without zstd
# nozlib build without zlib
# noftp build without FTP/FTPS support
# nohttp build without HTTP and proxy support
# nocookie build without cookie support
# imap build with IMAP protocol (for zero, bldtst or pico build)
# boringssl build with BoringSSL
# libressl build with LibreSSL
# quictls build with quictls
# openssl build with OpenSSL
# ostls build with OS-supplied TLS backend-only (Schannel or SecureTransport)
# osnotls build without OS-supplied TLS backends
# libssh build with libssh
# mini build with less features, see README.md
# micro build with less features, see README.md
# nano build with less features, see README.md
# pico build with less features, see README.md
# bldtst build without 3rd-party dependencies (except zlib) (for testing)
# zero build without 3rd-party dependencies (for testing, implies 'small' option)
# trurl build trurl (default for 'dev' and 'test' configs)
# thinlto build with ThinLTO enabled (requires llvm) [EXPERIMENTAL]
# small optimize for size
# r64 build riscv64 target only [EXPERIMENTAL]
# a64 build arm64 target only
# x64 build x86_64 target only
# x86 build i686 target only (for win target)
# nounity build without CMake UNITY mode (slower builds for slightly smaller binaries)
# nocurltool do not build the curl tool (requires cmake)
# curldocs include curl Markdown manual pages in the package
# msvcrt build against msvcrt instead of UCRT (for win target)
# gcc build with GCC (including Apple clang aliased to gcc) (defaults to llvm, and "gcc" (= Apple clang) for mac target)
# unicode build curl in UNICODE mode (for win target) [EXPERIMENTAL]
# osnoidn build curl without OS-supplied IDN support
# werror turn compiler warnings into errors
# debug debug build
# win build Windows target (default)
# mac build macOS target (requires macOS host)
# linux build Linux target (requires Linux host)
# musl build Linux target with musl CRT (for linux target) (default for Alpine)
# macuni build macOS universal (arm64 + x86_64) package (for mac target)
#
# CW_JOBS
# Number of parallel make jobs. Default: 2
#
# CW_CCSUFFIX
# llvm/clang and gcc suffix. E.g. '-8' for clang-8.
# Optional. Default: (empty)
#
# CW_REVISION
# Override the stable build revision number.
#
# CW_MAP
# Build or not .map files. Default: 0 for release config
#
# CW_NOTIME
# Do not measure built times. Default: 0
#
# CW_NOPKG
# Skip packaging steps.
#
# CW_PKG_NODELETE
# Leave the unified package tree on the disk. Default: 0
#
# CW_PKG_FLATTEN
# Flatten unified package dir layout for executables. Default: 0
#
# SIGN_CODE_GPG_PASS, SIGN_CODE_KEY_PASS: for code signing
# SIGN_PKG_KEY_ID, SIGN_PKG_GPG_PASS, SIGN_PKG_KEY_PASS: for package signing
# DEPLOY_GPG_PASS, DEPLOY_KEY_PASS: for publishing results
# Secrets used for the above operations.
# Optional. Skipping any operation missing a secret.
# TODO:
# - switch to git tags / auto-generated tarballs.
# How to verify integrity / signature? Also, Git hash is still SHA1.
# Some Git servers do not provide stable tarballs, e.g. googlesource.com.
# A stable reference release date can be difficult to obtain when using
# a dynamically/automatically generated source tarball, depending on server.
# GitHub offers a stable timestamp, but not e.g. googlesource.com.
# Tags/versions need to be resolved to hashes securely and permanently.
# - prepare for Xcode 15 with new ld_prime (-Wl,-ld_new) linker (vs. -Wl,-ld_classic).
# https://developer.apple.com/forums/thread/715385
# - add FreeBSD builds?
# - linux: musl alpine why need -static-pie and not -static?
# - linux: musl libcurl.so.4.8.0 tweak to be also portable (possible?)
# fix apps linked against musl libcurl.so. Or stop making/distributing it?
# they require '/lib/ld-musl-x86_64.so.1' / '/lib/ld-musl-aarch64.so.1' now.
# meaning e.g.: `apt install musl; LD_LIBRARY_PATH=. ./trurl`
# - merge _ci-*.sh scripts into one.
# - win: Drop x86 builds.
# https://data.firefox.com/dashboard/hardware
# A hidden aspect of x86: The Chocolatey package manager installs x86
# binaries on ARM systems to run them in emulated mode. Windows as of ~2021
# got the ability to run x64 in emulated mode, but tooling support is
# missing, just like support for native ARM binaries:
# https://github.com/chocolatey/choco/issues/1803
# https://github.com/chocolatey/choco/issues/2172
# winget and scoop both support native ARM64.
# Resources:
# - https://clang.llvm.org/docs/Toolchain.html
# - https://blog.llvm.org/2019/11/deterministic-builds-with-clang-and-lld.html
# - https://github.com/mstorsjo/llvm-mingw
# - https://github.com/llvm/llvm-project
# - https://salsa.debian.org/pkg-llvm-team
# - https://git.code.sf.net/p/mingw-w64/mingw-w64
# https://github.com/mirror/mingw-w64
# - https://sourceware.org/git/binutils-gdb.git
# - https://github.com/netwide-assembler/nasm
# Manuals:
# - https://www.man7.org/linux/man-pages/man1/as.1.html
# - https://sourceware.org/binutils/docs/as.html
# - https://sourceware.org/binutils/docs-2.41/as.html
#
# - https://www.man7.org/linux/man-pages/man1/gcc.1.html
# - https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html
# - https://gcc.gnu.org/onlinedocs/gcc-13.2.0/gcc/Optimize-Options.html#index-fsemantic-interposition
#
# - https://www.man7.org/linux/man-pages/man1/ld.1.html
# - https://sourceware.org/binutils/docs/ld.html
# - https://sourceware.org/binutils/docs-2.41/ld.html
# - https://man.archlinux.org/man/extra/lld/ld.lld.1.en
#
# - https://rui314.github.io/mold.html
# Build times for Windows with quictls (2023-10-25):
# - cmake-unity: 27 min 22 sec 1642s 100%
# - gnumake: 29 min 11 sec 1751s 107% 100%
# Supported build tools:
#
# zlib cmake
# zlibng cmake
# zstd cmake
# brotli cmake
# cares cmake
# libpsl manual
# nghttp2 cmake
# nghttp3 cmake
# ngtcp2 cmake
# openssl/quictls proprietary
# boringssl cmake
# libressl cmake
# libssh cmake
# libssh2 cmake-unity
# curl cmake-unity
# trurl gnumake
cd "$(dirname "$0")"
export LC_ALL=C
export LC_MESSAGES=C
export LANG=C
export GREP_OPTIONS=
export ZIPOPT=
export ZIP=
unamem="$(uname -m)"
readonly _LOG='logurl.txt'
readonly _SELF='curl-for-win'
if [ -n "${APPVEYOR_ACCOUNT_NAME:-}" ]; then
# https://www.appveyor.com/docs/environment-variables/
_SLUG="${APPVEYOR_REPO_NAME}"
_LOGURL="${APPVEYOR_URL}/project/${APPVEYOR_ACCOUNT_NAME}/${APPVEYOR_PROJECT_SLUG}/build/${APPVEYOR_BUILD_VERSION}/job/${APPVEYOR_JOB_ID}?fullLog=true"
# _LOGURL="${APPVEYOR_URL}/api/buildjobs/${APPVEYOR_JOB_ID}/log"
_COMMIT="${APPVEYOR_REPO_COMMIT}"
_COMMIT_SHORT="$(printf '%.8s' "${_COMMIT}")"
elif [ -n "${GITHUB_RUN_ID:-}" ]; then
# https://docs.github.com/actions/learn-github-actions/environment-variables
_SLUG="${GITHUB_REPOSITORY}"
_LOGURL="${GITHUB_SERVER_URL}/${_SLUG}/actions/runs/${GITHUB_RUN_ID}"
_COMMIT="${GITHUB_SHA}"
_COMMIT_SHORT="$(printf '%.8s' "${_COMMIT}")"
elif [ -n "${CI_JOB_ID:-}" ]; then
# https://docs.gitlab.com/ce/ci/variables/index.html
_SLUG="${CI_PROJECT_PATH}"
_LOGURL="${CI_SERVER_URL}/${_SLUG}/-/jobs/${CI_JOB_ID}/raw"
_COMMIT="${CI_COMMIT_SHA}"
_COMMIT_SHORT="$(printf '%.8s' "${_COMMIT}")"
else
_SLUG="curl/${_SELF}"
_LOGURL=''
_COMMIT="$(git rev-parse --verify HEAD || true)"
_COMMIT_SHORT="$(git rev-parse --short=8 HEAD || true)"
fi
echo "${_LOGURL}" | tee "${_LOG}"
export _CONFIG
if [ -n "${CW_CONFIG:-}" ]; then
_CONFIG="${CW_CONFIG}"
else
_CONFIG="${APPVEYOR_REPO_BRANCH:-}${CI_COMMIT_REF_NAME:-}${GITHUB_REF_NAME:-}"
fi
[ -n "${_CONFIG}" ] || _CONFIG="$(git symbolic-ref --short --quiet HEAD || true)"
[ -n "${_CONFIG}" ] || _CONFIG='main'
if command -v git >/dev/null 2>&1; then
# Broken on AppVeyor CI since around 2023-02:
# fatal: No remote configured to list refs from.
_URL_BASE="$(git ls-remote --get-url | sed 's/\.git$//' || true)"
fi
if [ -z "${_URL_BASE}" ]; then
_URL_BASE="https://github.com/${_SLUG}"
fi
if [ -n "${_COMMIT}" ]; then
# _URL_FULL="${_URL_BASE}/tree/${_COMMIT}"
_TAR="${_URL_BASE}/archive/${_COMMIT}.tar.gz"
else
# _URL_FULL="${_URL_BASE}"
_TAR="${_URL_BASE}/archive/refs/heads/${_CONFIG}.tar.gz"
fi
# Detect host OS
export _HOST
case "$(uname)" in
*_NT*) _HOST='win';;
Linux*) _HOST='linux';;
Darwin*) _HOST='mac';;
*BSD) _HOST='bsd';;
*) _HOST='unrecognized';;
esac
export _DISTRO=''
if [ "${_HOST}" = 'linux' ] && [ -s /etc/os-release ]; then
_DISTRO="$(grep -a '^ID=' /etc/os-release | cut -c 4- | tr -d '"' || true)"
_DISTRO="${_DISTRO:-unrecognized}"
fi
export _OS='win'
[[ "${_CONFIG}" = *'mac'* ]] && _OS='mac'
[[ "${_CONFIG}" = *'linux'* ]] && _OS='linux'
export _CACERT='cacert.pem'
[ -n "${CW_CCSUFFIX:-}" ] || CW_CCSUFFIX=''
if [ "${_OS}" = 'mac' ]; then
_CONFCC='gcc' # = Apple clang
else
_CONFCC='llvm'
fi
[[ "${_CONFIG}" = *'gcc'* ]] && _CONFCC='gcc'
[[ "${_CONFIG}" = *'llvm'* ]] && _CONFCC='llvm'
export _CRT
if [ "${_OS}" = 'win' ]; then
_CRT='ucrt'
[[ "${_CONFIG}" = *'msvcrt'* ]] && _CRT='msvcrt'
elif [ "${_OS}" = 'linux' ]; then
if [ "${_HOST}" = 'mac' ]; then
# Assume musl-cross toolchain via Homebrew, based on musl-cross-make
# https://github.com/richfelker/musl-cross-make
# https://github.com/FiloSottile/homebrew-musl-cross
# https://words.filippo.io/easy-windows-and-linux-cross-compilers-for-macos/
_CONFCC='gcc'
_CRT='musl'
elif [ "${_DISTRO}" = 'alpine' ]; then
_CRT='musl'
else
# TODO: make musl the default (once all issues are cleared)
_CRT='gnu'
[[ "${_CONFIG}" = *'musl'* ]] && _CRT='musl'
fi
else
# macOS: /usr/lib/libSystem.B.dylib
_CRT='sys'
fi
export DYN_DIR
export DYN_EXT
export BIN_EXT
if [ "${_OS}" = 'win' ]; then
DYN_DIR='bin'
DYN_EXT='.dll'
BIN_EXT='.exe'
elif [ "${_OS}" = 'mac' ]; then
DYN_DIR='lib'
DYN_EXT='.dylib'
BIN_EXT=''
elif [ "${_OS}" = 'linux' ]; then
DYN_DIR='lib'
DYN_EXT='.so'
BIN_EXT=''
fi
if [ -z "${CW_MAP:-}" ]; then
export CW_MAP='0'
[[ "${_CONFIG}" != *'main'* ]] && CW_MAP='1'
fi
export _JOBS=2
[ -n "${CW_JOBS:-}" ] && _JOBS="${CW_JOBS}"
my_time='time'
[ -n "${CW_NOTIME:-}" ] && my_time=
# Form suffix for alternate builds
export _FLAV=''
if [[ "${_CONFIG}" = *'zero'* ]]; then
_FLAV='-zero'
elif [[ "${_CONFIG}" = *'bldtst'* ]]; then
_FLAV='-bldtst'
elif [[ "${_CONFIG}" = *'pico'* ]]; then
_FLAV='-pico'
elif [[ "${_CONFIG}" = *'nano'* ]]; then
_FLAV='-nano'
elif [[ "${_CONFIG}" = *'micro'* ]]; then
_FLAV='-micro'
elif [[ "${_CONFIG}" = *'mini'* ]]; then
_FLAV='-mini'
elif [[ "${_CONFIG}" = *'noh3'* ]]; then
_FLAV='-noh3'
fi
# Required for an ugly OpenSSL hack.
# https://clang.llvm.org/docs/CrossCompilation.html
case "${_HOST}" in
win) _HOST_TRIPLET="${unamem}-pc-mingw32";;
linux) _HOST_TRIPLET="${unamem}-pc-linux";;
bsd) _HOST_TRIPLET="${unamem}-pc-bsd";;
mac) _HOST_TRIPLET="${unamem}-apple-darwin";;
*) _HOST_TRIPLET="${unamem}-pc-$(uname -s | tr '[:upper:]' '[:lower:]')";; # lazy guess
esac
if [ "${_HOST}" = 'linux' ]; then
# Short triplet used on the filesystem
_HOST_TRIPLETSH="${unamem}-linux-gnu"
else
_HOST_TRIPLETSH="${_HOST_TRIPLET}"
fi
export _PKGOS
if [ "${_OS}" = 'win' ]; then
_PKGOS='mingw'
elif [ "${_OS}" = 'mac' ]; then
_PKGOS='macos'
else
_PKGOS="${_OS}"
fi
export PUBLISH_PROD_FROM
if [ "${APPVEYOR_REPO_PROVIDER:-}" = 'gitHub' ] || \
[ -n "${GITHUB_RUN_ID:-}" ]; then
PUBLISH_PROD_FROM='linux'
else
PUBLISH_PROD_FROM=''
fi
export _BLD='build.txt'
export _URLS='urls.txt'
rm -f ./*-*-"${_PKGOS}"*.*
rm -f hashes.txt "${_BLD}" "${_URLS}"
touch hashes.txt "${_BLD}" "${_URLS}"
. ./_versions.sh
# Revision suffix used in package filenames
export _REVSUFFIX="${_REV}"; [ -z "${_REVSUFFIX}" ] || _REVSUFFIX="_${_REVSUFFIX}"
# Download sources
. ./_dl.sh
# Install required component
if [ "${_OS}" = 'win' ] && [ "${_HOST}" = 'mac' ]; then
if [ ! -d .venv ]; then
python3 -m venv .venv
PIP_PROGRESS_BAR=off .venv/bin/python3 -m pip --disable-pip-version-check --no-cache-dir --require-virtualenv install pefile
fi
export PATH; PATH="$(pwd)/.venv/bin:${PATH}"
fi
# Find and setup llvm-mingw downloaded above.
if [ "${_OS}" = 'win' ] && \
[ -z "${CW_LLVM_MINGW_PATH:-}" ] && \
[ -d 'llvm-mingw' ]; then
export CW_LLVM_MINGW_PATH; CW_LLVM_MINGW_PATH="$(pwd)/llvm-mingw"
export CW_LLVM_MINGW_VER_; CW_LLVM_MINGW_VER_="$(cat 'llvm-mingw/version.txt')"
echo "! Using llvm-mingw: '${CW_LLVM_MINGW_PATH}' (${CW_LLVM_MINGW_VER_})"
fi
# Decrypt package signing key
SIGN_PKG_KEY='sign-pkg.gpg.asc'
if [ -s "${SIGN_PKG_KEY}" ] && \
[ -n "${SIGN_PKG_KEY_ID:-}" ] && \
[ -n "${SIGN_PKG_GPG_PASS:+1}" ]; then
gpg --batch --yes --no-tty --quiet \
--pinentry-mode loopback --passphrase-fd 0 \
--decrypt "${SIGN_PKG_KEY}" 2>/dev/null <<EOF | \
gpg --batch --quiet --import
${SIGN_PKG_GPG_PASS}
EOF
fi
# decrypt code signing key
export SIGN_CODE_KEY; SIGN_CODE_KEY="$(pwd)/sign-code.p12"
if [ -s "${SIGN_CODE_KEY}.asc" ] && \
[ -n "${SIGN_CODE_GPG_PASS:+1}" ]; then
install -m 600 /dev/null "${SIGN_CODE_KEY}"
gpg --batch --yes --no-tty --quiet \
--pinentry-mode loopback --passphrase-fd 0 \
--decrypt "${SIGN_CODE_KEY}.asc" 2>/dev/null >> "${SIGN_CODE_KEY}" <<EOF || true
${SIGN_CODE_GPG_PASS}
EOF
fi
if [ "${_OS}" = 'win' ] && \
[ -s "${SIGN_CODE_KEY}" ]; then
osslsigncode --version # We need 2.2 or newer
fi
_ori_path="${PATH}"
bld() {
bldtools='(cmake|gnumake)'
pkg="$1"
if [ -z "${CW_BLD:-}" ] || echo " ${CW_BLD} " | grep -q -E -- " ${pkg}(-${bldtools})? "; then
shift
export _BLDDIR="${_PKGDIR}"
pkgori="${pkg}"
[ -n "${2:-}" ] && pkg="$2"
# allow selecting an alternate build tool
withbuildtool="$(echo "${CW_BLD:-}" | \
grep -a -o -E -- "${pkg}-${bldtools}" || true)"
if [ -n "${withbuildtool}" ] && [ -f "${withbuildtool}.sh" ]; then
pkg="${withbuildtool}"
bldtool="$(echo "${pkg}" | \
grep -a -o -E -- "-${bldtools}")"
_BLDDIR+="${bldtool}-${_CC}"
fi
_BLDDIR+='-bld'
${my_time} "./${pkg}.sh" "$1" "${pkgori}"
if [ "${CW_DEV_MOVEAWAY:-}" = '1' ] && [ "${pkg}" != "${pkgori}" ]; then
mv -n "${pkgori}" "${pkg}"
fi
fi
}
build_single_target() {
export _CPU="$1"
export _CC="${_CONFCC}"
# Select and advertise a single copy of components having multiple
# implementations.
export _ZLIB=''
if [[ "${_DEPS}" = *'zlibng'* ]]; then
_ZLIB='zlibng'
elif [[ "${_DEPS}" = *'zlibold'* ]]; then
_ZLIB='zlib'
fi
[ -d "${_ZLIB}" ] || _ZLIB=''
export _OPENSSL=''; boringssl=0
if [[ "${_DEPS}" = *'libressl'* ]]; then
_OPENSSL='libressl'
elif [[ "${_DEPS}" = *'boringssl'* ]]; then
_OPENSSL='boringssl'; boringssl=1
elif [[ "${_DEPS}" = *'quictls'* ]]; then
_OPENSSL='quictls'
elif [[ "${_DEPS}" = *'openssl'* ]]; then
_OPENSSL='openssl'
fi
[ -d "${_OPENSSL}" ] || _OPENSSL=''
use_llvm_mingw=0
versuffix_llvm_mingw=''
versuffix_non_llvm_mingw=''
if [ "${_OS}" = 'win' ]; then
if [ "${CW_LLVM_MINGW_ONLY:-}" = '1' ]; then
use_llvm_mingw=1
elif [ "${_CPU}" = 'a64' ]; then
use_llvm_mingw=1
versuffix_llvm_mingw=' (ARM64)'
fi
fi
# Toolchain
export _TOOLCHAIN=''
if [ "${_OS}" = 'win' ]; then
if [ "${use_llvm_mingw}" = '1' ]; then
if [ "${_CC}" != 'llvm' ] || \
[ "${_CRT}" != 'ucrt' ] || \
[ -z "${CW_LLVM_MINGW_PATH:-}" ]; then
echo "! WARNING: '${_CONFIG}/${_CPU}' builds require llvm/clang, UCRT and CW_LLVM_MINGW_PATH. Skipping."
return
fi
_TOOLCHAIN='llvm-mingw'
else
_TOOLCHAIN='mingw-w64'
fi
elif [ "${_OS}" = 'mac' ] && [ "${_CC}" = 'gcc' ]; then
if "${_CC}${CW_CCSUFFIX}" --version | grep -q -a -E '(Apple clang|Apple LLVM|based on LLVM)'; then
_CC='llvm'
_TOOLCHAIN='llvm-apple' # Apple clang
fi
fi
export _TRIPLET=''
_SYSROOT=''
_CCPREFIX=
_CCSUFFIX=
export _MAKE='make'
export _RUN_BIN=''
if [ "${_TOOLCHAIN}" != 'llvm-mingw' ]; then
_CCSUFFIX="${CW_CCSUFFIX}"
fi
# GCC-specific machine selection option
[ "${_CPU}" = 'x86' ] && _OPTM='-m32'
[ "${_CPU}" = 'x64' ] && _OPTM='-m64'
[ "${_CPU}" = 'a64' ] && _OPTM='-marm64pe'
[ "${_CPU}" = 'x86' ] && _machine='i686'
[ "${_CPU}" = 'x64' ] && _machine='x86_64'
[ "${_CPU}" = 'a64' ] && _machine='aarch64'
[ "${_CPU}" = 'r64' ] && _machine='riscv64'
if [ "${_OS}" = 'mac' ] && [ "${_machine}" = 'aarch64' ] && [ "${_CC}" = 'llvm' ]; then
# llvm-apple supports multiple archs separated by ';', e.g. 'arm64e;x86_64'
# It also understands arm64e (vs arm64)
# Revert to arm64, because documents suggests that arm64e is not supported
# by macOS by default (for user apps) and enabling it is an involved process
# (as of macOS Ventura):
# https://github.com/lelegard/arm-cpusysregs/blob/6316fb608c8e4cd817d72485a57abbffd3d811b4/docs/arm64e-on-macos.md#enabling-arm64e-on-macos-13-ventura
_machines='arm64'
# _machines='arm64e'
else
_machines="${_machine}"
fi
export _CURL_DLL_SUFFIX=''
export _CURL_DLL_SUFFIX_NODASH=''
if [ "${_OS}" = 'win' ]; then
[ "${_CPU}" = 'x64' ] && _CURL_DLL_SUFFIX_NODASH="${_CPU}"
[ "${_CPU}" = 'a64' ] && _CURL_DLL_SUFFIX_NODASH='arm64'
[ -n "${_CURL_DLL_SUFFIX_NODASH}" ] && _CURL_DLL_SUFFIX="-${_CURL_DLL_SUFFIX_NODASH}"
fi
if [ "${_OS}" = 'win' ]; then
[ "${_CPU}" = 'x86' ] && pkgcpu='win32'
[ "${_CPU}" = 'x64' ] && pkgcpu='win64'
[ "${_CPU}" = 'a64' ] && pkgcpu='win64a'
else
# TODO: add support for macOS universal (multi-CPU) builds?
pkgcpu="${_machine}"
fi
export _PKGSUFFIX="-${pkgcpu}-${_PKGOS}"
# Reset for each target
PATH="${_ori_path}"
if [ "${_HOST}" = 'mac' ]; then
brew_root="$(brew --prefix)"
_MAC_LLVM_PATH="${brew_root}/opt/llvm/bin" # or "$(brew --prefix llvm)/bin"
fi
if [ "${_OS}" = 'win' ]; then
if [ "${_HOST}" = 'win' ]; then
export PATH
if [ "${_TOOLCHAIN}" = 'llvm-mingw' ]; then
PATH="${CW_LLVM_MINGW_PATH}/bin:${_ori_path}"
else
[ "${_CPU}" = 'x86' ] && _MSYSROOT='/mingw32'
[ "${_CPU}" = 'x64' ] && _MSYSROOT='/mingw64'
[ "${_CPU}" = 'a64' ] && _MSYSROOT='/clangarm64'
[ -n "${_MSYSROOT}" ] && PATH="${_MSYSROOT}/bin:${_ori_path}"
fi
_MAKE='mingw32-make'
_RUN_BIN='echo'
# Skip ARM64 target on 64-bit Intel, run all targets on ARM64:
if [ "${unamem}" = 'x86_64' ] && \
[ "${_CPU}" != 'a64' ]; then
_RUN_BIN=
elif [ "${unamem}" = 'aarch64' ]; then
_RUN_BIN=
fi
else
if [ "${_TOOLCHAIN}" = 'llvm-mingw' ]; then
export PATH="${CW_LLVM_MINGW_PATH}/bin:${_ori_path}"
elif [ "${_CC}" = 'llvm' ] && [ "${_HOST}" = 'mac' ]; then
export PATH="${_MAC_LLVM_PATH}:${_ori_path}"
fi
_TRIPLET="${_machine}-w64-mingw32"
# Prefixes do not work with MSYS2/mingw-w64, because `ar`, `nm` and
# `ranlib` are missing from them. They are accessible either _without_
# one, or as prefix + `gcc-ar`, `gcc-nm`, `gcc-runlib`.
_CCPREFIX="${_TRIPLET}-"
# mingw-w64 sysroots
if [ "${_TOOLCHAIN}" != 'llvm-mingw' ]; then
if [ "${_HOST}" = 'mac' ]; then
_SYSROOT="${brew_root}/opt/mingw-w64/toolchain-${_machine}"
elif [ "${_HOST}" = 'linux' ]; then
_SYSROOT="/usr/${_TRIPLET}"
fi
fi
_RUN_BIN='echo'
if [ "${_HOST}" = 'linux' ] || \
[ "${_HOST}" = 'bsd' ]; then
# Run x64 targets on same CPU:
if [ "${_CPU}" = 'x64' ] && \
[ "${unamem}" = 'x86_64' ]; then
if command -v wine64 >/dev/null 2>&1; then
_RUN_BIN='wine64'
elif command -v wine >/dev/null 2>&1; then
_RUN_BIN='wine'
fi
fi
elif [ "${_HOST}" = 'mac' ]; then
# Run x64 targets on Intel and ARM (requires Wine 6.0.1):
if [ "${_CPU}" = 'x64' ] && \
command -v wine64 >/dev/null 2>&1; then
_RUN_BIN='wine64'
fi
fi
fi
else
if [ "${_CC}" = 'llvm' ] && [ "${_TOOLCHAIN}" != 'llvm-apple' ] && [ "${_HOST}" = 'mac' ]; then
export PATH="${_MAC_LLVM_PATH}:${_ori_path}"
fi
if [ "${_OS}" = 'linux' ]; then
# Include CRT type in Linux triplets, to make it visible in
# the curl version banner.
if [ "${_HOST}" = 'mac' ]; then
_TRIPLET="${_machine}-linux-musl"
_TRIPLETSH="${_TRIPLET}"
_CCPREFIX="${_TRIPLET}-"
elif [ "${_DISTRO}" = 'alpine' ]; then
# E.g. x86_64-alpine-linux-musl
_TRIPLET="${_machine}-${_DISTRO}-linux-${_CRT}"
_TRIPLETSH="${_TRIPLET}"
else
if [ "${_CRT}" = 'musl' ]; then
# E.g. x86_64-unknown-linux-musl
_TRIPLET="${_machine}-unknown-linux-${_CRT}"
else
_TRIPLET="${_machine}-pc-linux-${_CRT}"
fi
# Short triplet used on the filesystem
_TRIPLETSH="${_machine}-linux-gnu"
fi
if [ "${_DISTRO}" = 'debian' ] && \
[ "${_CC}" = 'gcc' ] && \
[ "${unamem}" != "${_machine}" ] && \
[ ! -d "/usr/lib/gcc-cross/${_TRIPLETSH}" ]; then
echo "! WARNING: '${_CONFIG}/${_CPU}' build requires gcc-cross package. Skipping."
return
fi
if [ "${unamem}" != "${_machine}" ] && [ "${_CC}" = 'gcc' ]; then
# https://packages.debian.org/testing/arm64/gcc-x86-64-linux-gnu/filelist
# https://packages.debian.org/testing/arm64/binutils-x86-64-linux-gnu/filelist
# /usr/bin/x86_64-linux-gnu-gcc
# https://packages.debian.org/testing/amd64/gcc-aarch64-linux-gnu/filelist
# https://packages.debian.org/testing/amd64/binutils-aarch64-linux-gnu/filelist
# /usr/bin/aarch64-linux-gnu-gcc
_CCPREFIX="${_TRIPLETSH}-"
fi
_RUN_BIN='echo'
if [ "${_HOST}" = 'linux' ] && [ "${_OS}" = 'linux' ]; then
# Skip running non-native builds
if [ "${unamem}" = "${_machine}" ]; then
_RUN_BIN=''
elif [ "${_DISTRO}" = 'debian' ]; then
_RUN_BIN="qemu-${_machine}-static"
fi
fi
elif [ "${_OS}" = 'mac' ]; then
_TRIPLET="${_machine}-apple-darwin"
_RUN_BIN='echo'
if [ "${_HOST}" = 'mac' ]; then
# Skip running arm64 on x86_64
if [ "${_CPU}" = 'x64' ] || \
[ "${unamem}" = 'aarch64' ]; then
_RUN_BIN=''
fi
fi
fi
fi
if [ "${_CC}" = 'llvm' ]; then
ccver="$("clang${_CCSUFFIX}" -dumpversion)"
else
ccver="$("${_CCPREFIX}gcc${_CCSUFFIX}" -dumpversion)"
if [ "${_CRT}" = 'ucrt' ]; then
# Create specs files that overrides msvcrt with ucrt. We need this
# for gcc when building against UCRT.
# https://stackoverflow.com/questions/57528555/how-do-i-build-against-the-ucrt-with-mingw-w64
_GCCSPECS="$(pwd)/gcc-specs-ucrt"
"${_CCPREFIX}gcc${_CCSUFFIX}" -dumpspecs | sed 's/-lmsvcrt/-lucrt/g' > "${_GCCSPECS}"
fi
fi
export _CCVER
_CCVER="$(printf '%02d' \
"$(printf '%s' "${ccver}" | grep -a -o -E '^[0-9]+')")"
export _OSVER='0000'
# Setup common toolchain configuration options
export _TOP; _TOP="$(pwd)" # Must be an absolute path
export _PKGDIR="_${_CPU}-${_OS}-${_CRT}"
export _PKGDIRS="${_PKGDIR}"
[ -n "${_OPENSSL}" ] && _PKGDIRS+="-${_OPENSSL}"
_PREFIX='/usr'
export _PP="${_PKGDIR}${_PREFIX}"
export _PPS="${_PKGDIRS}${_PREFIX}"
export _CC_GLOBAL=''
export _CFLAGS_GLOBAL=''
export _CFLAGS_GLOBAL_CMAKE=''
export _CFLAGS_GLOBAL_RAW=''
export _CPPFLAGS_GLOBAL=''
export _CXXFLAGS_GLOBAL=''
export _RCFLAGS_GLOBAL=''
export _LDFLAGS_GLOBAL=''
export _LDFLAGS_BIN_GLOBAL=''
export _LDFLAGS_CXX_GLOBAL='' # CMake uses this
export _CMAKE_GLOBAL='-Wno-dev' # Suppress CMake warnings meant for upstream developers
export _CMAKE_CXX_GLOBAL=''
if [[ "${_CONFIG}" =~ (small|zero) ]]; then
_CFLAGS_GLOBAL_RAW+=' -Os'
_CMAKE_GLOBAL+=' -DCMAKE_BUILD_TYPE=MinSizeRel'
else
_CFLAGS_GLOBAL_RAW+=' -O3'
_CMAKE_GLOBAL+=' -DCMAKE_BUILD_TYPE=Release'
fi
# for CMake and openssl
unset CC
if [ "${_OS}" = 'win' ]; then
_CPPFLAGS_GLOBAL+=' -D_WIN32_WINNT=0x0600' # Windows Vista
if [ "${_HOST}" != "${_OS}" ] || \
[ "${unamem}" != "${_machine}" ]; then
_CMAKE_GLOBAL="-DCMAKE_SYSTEM_NAME=Windows ${_CMAKE_GLOBAL}"
fi
[ "${_CPU}" = 'x86' ] && _RCFLAGS_GLOBAL+=' --target=pe-i386'
[ "${_CPU}" = 'x64' ] && _RCFLAGS_GLOBAL+=' --target=pe-x86-64'
[ "${_CPU}" = 'a64' ] && _RCFLAGS_GLOBAL+=" --target=${_TRIPLET}" # llvm-windres supports triplets here. https://github.com/llvm/llvm-project/blob/main/llvm/tools/llvm-rc/llvm-rc.cpp
if [ "${_HOST}" = 'win' ]; then
# '-G MSYS Makefiles' command-line option is problematic due to spaces
# and unwanted escaping/splitting. Pass it via envvar instead.
export CMAKE_GENERATOR='MSYS Makefiles'
# Without this, the value '/usr/local' becomes 'msys64/usr/local'
export MSYS2_ARG_CONV_EXCL='-DCMAKE_INSTALL_PREFIX='
fi
if [ "${_CRT}" = 'ucrt' ]; then
_CPPFLAGS_GLOBAL+=' -D_UCRT'
_LDFLAGS_GLOBAL+=' -Wl,-lucrt'
if [ "${_CC}" = 'gcc' ]; then
_LDFLAGS_GLOBAL+=" -specs=${_GCCSPECS}"
fi
fi
elif [ "${_OS}" = 'mac' ]; then
if [ "${_HOST}" != "${_OS}" ]; then
_CMAKE_GLOBAL="-DCMAKE_SYSTEM_NAME=Darwin ${_CMAKE_GLOBAL}"
fi
# macOS 10.9 Mavericks 2013-10-22. Seems to work for arm64 builds,
# though arm64 was released in macOS 11.0 Big Sur 2020-11-12.
# Bump to macOS 10.13 High Sierra 2017-09-25 if we decide to disable
# LDAP/LDAPS for macOS builds.
# NOTE: 10.8 (and older) trigger C++ issues with Xcode and CMake.
macminver='10.9'
_CMAKE_GLOBAL+=" -DCMAKE_OSX_DEPLOYMENT_TARGET=${macminver}"
_CFLAGS_GLOBAL+=" -mmacosx-version-min=${macminver}"
_CXXFLAGS_GLOBAL+=" -mmacosx-version-min=${macminver}"
_OSVER="$(printf '%02d%02d' \
"$(printf '%s' "${macminver}" | cut -d '.' -f 1)" \
"$(printf '%s' "${macminver}" | cut -d '.' -f 2)")"
_CMAKE_GLOBAL+=" -DCMAKE_OSX_ARCHITECTURES=${_machines}"
elif [ "${_OS}" = 'linux' ]; then
if [ "${_HOST}" != "${_OS}" ] || \
[ "${unamem}" != "${_machine}" ]; then
_CMAKE_GLOBAL="-DCMAKE_SYSTEM_NAME=Linux ${_CMAKE_GLOBAL}"
fi
# Override defaults such as: 'lib/aarch64-linux-gnu'
_CMAKE_GLOBAL+=' -DCMAKE_INSTALL_LIBDIR=lib'
# OpenSSF guide:
# https://best.openssf.org/Compiler-Hardening-Guides/Compiler-Options-Hardening-Guide-for-C-and-C++.html
# https://github.com/ossf/wg-best-practices-os-developers/blob/main/docs/Compiler-Hardening-Guides/Compiler-Options-Hardening-Guide-for-C-and-C%2B%2B.md
if [[ ( "${_CC}" = 'llvm' && "${_CCVER}" -ge '16' ) || \
( "${_CC}" = 'gcc' && "${_CCVER}" -ge '13' ) ]]; then
_CFLAGS_GLOBAL+=' -fstrict-flex-arrays=3'
_CXXFLAGS_GLOBAL+=' -fstrict-flex-arrays=3'
fi
# With musl, this seems to be a no-op as of Alpine v3.18
# https://en.wikipedia.org/wiki/Buffer_overflow_protection
_CFLAGS_GLOBAL+=' -fstack-protector-all'
_CXXFLAGS_GLOBAL+=' -fstack-protector-all'
if false && [ "${_CC}" = 'gcc' ] && [ "${_CCVER}" -ge '14' ]; then
# https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html#index-fhardened
_CFLAGS_GLOBAL+=' -fhardened'
_CXXFLAGS_GLOBAL+=' -fhardened'
else
# https://en.wikipedia.org/wiki/Position-independent_code#PIE
_CFLAGS_GLOBAL+=' -fPIC'
_CXXFLAGS_GLOBAL+=' -fPIC'
# With musl, this relies on package `fortify-headers` (Alpine)
_CPPFLAGS_GLOBAL+=' -D_FORTIFY_SOURCE=2'
# Requires glibc 2.34, gcc 12 (2022)
# https://developers.redhat.com/articles/2023/02/06/how-improve-application-security-using-fortifysource3
# https://developers.redhat.com/articles/2022/09/17/gccs-new-fortification-level
# _CPPFLAGS_GLOBAL+=' -D_FORTIFY_SOURCE=3'
if [ "${_CPU}" = 'x64' ] || \
[ "${_CPU}" = 'x86' ] || \
[ "${_CC}" = 'gcc' ]; then
_CFLAGS_GLOBAL+=' -fstack-clash-protection'
_CXXFLAGS_GLOBAL+=' -fstack-clash-protection'
fi
_LDFLAGS_GLOBAL+=' -Wl,-z,relro,-z,now'
fi
_LDFLAGS_GLOBAL+=' -Wl,-z,noexecstack' # Seems to be the default on our platforms, but make it explicit.
_LDFLAGS_GLOBAL+=' -Wl,-z,nodlopen'
if [ "${_CRT}" = 'musl' ]; then
if [ "${_HOST}" = 'mac' ]; then
_LDFLAGS_BIN_GLOBAL+=' -static'
elif [ "${_DISTRO}" = 'alpine' ]; then
_LDFLAGS_BIN_GLOBAL+=' -static-pie'
else
_LDFLAGS_BIN_GLOBAL+=' -static'
fi
fi
fi
_CFLAGS_GLOBAL+=' -fno-omit-frame-pointer'
_CXXFLAGS_GLOBAL+=' -fno-omit-frame-pointer'
# https://fedoraproject.org/wiki/Security_Features_Matrix
# RISC-V: https://gcc.gnu.org/onlinedocs/gcc/RISC-V-Options.html
if [ "${_CPU}" = 'x64' ] || \
[ "${_CPU}" = 'x86' ]; then
# https://maskray.me/blog/2022-12-18-control-flow-integrity
_CFLAGS_GLOBAL+=' -fcf-protection=full'
_CXXFLAGS_GLOBAL+=' -fcf-protection=full'
if [ "${_OS}" = 'linux' ]; then
# https://github.com/llvm/llvm-project/issues/44828
# https://reviews.llvm.org/D59780
# https://github.com/llvm/llvm-project/commit/7cd429f27d4886bb841ed0e3702e970f5f6cccd1
_LDFLAGS_GLOBAL+=' -Wl,-z,cet-report=warning -Wl,-z,force-ibt,-z,shstk'
elif [ "${_OS}" = 'win' ] && [ "${_CC}" = 'llvm' ]; then
_LDFLAGS_GLOBAL+=' -Wl,-Xlink=-cetcompat'
fi
elif [ "${_CPU}" = 'a64' ]; then
# https://gcc.gnu.org/onlinedocs/gcc/AArch64-Options.html
_CFLAGS_GLOBAL+=' -mbranch-protection=standard'
_CXXFLAGS_GLOBAL+=' -mbranch-protection=standard'
fi
_CMAKE_GLOBAL+=' -DCMAKE_INSTALL_MESSAGE=NEVER'
_CMAKE_GLOBAL+=" -DCMAKE_INSTALL_PREFIX=${_PREFIX}"
# Hide symbols by default. Our goal is to create curl and libcurl, and to
# export the libcurl interface from the libcurl shared lib, without exporting
# the interfaces of its dependencies statically linked to the libcurl shared
# lib. This needs setting the default visibility 'hidden' and make sure that
# no dependency build is overriding this default, nor do they enable any
# per-function attribute to override it. Except when building libcurl itself.
# https://gcc.gnu.org/wiki/Visibility
#
# FIXME: We enable assembly code with most TLS backends (and zstd has some
# too on some targets). I have not found a way to enforce hidden visibility
# for symbols declared in assembly code (via .global or .globl) meaning these
# continue to leak out from the libcurl shared library.
if [ "${_OS}" != 'win' ]; then
_CFLAGS_GLOBAL+=' -fvisibility=hidden'
_CXXFLAGS_GLOBAL+=' -fvisibility=hidden'
fi
if [ "${_OPENSSL}" = 'boringssl' ]; then
_CFLAGS_GLOBAL+=' -fno-addrsig' # to avoid (as of 4fe29ebc, root cause undiscovered): ld.lld: error: libcrypto.a({mem,err,...}.o): invalid symbol index in addrsig section
_LDFLAGS_GLOBAL+=' -Wl,-Bstatic -lstdc++'
if [ "${_TOOLCHAIN}" = 'llvm-mingw' ]; then
_LDFLAGS_GLOBAL+=' -stdlib=libc++'
# to avoid:
# ld.lld: error: undefined symbol: _Unwind_Resume
# >>> referenced by objects.a(args.cc.obj):[...]
_LDFLAGS_GLOBAL+=' -lunwind'
fi
fi
# These options have just minor effect when using -fvisibility=hidden, but
# we're going for it.
if [ "${_OS}" = 'linux' ]; then
# gcc (as of v12/v13) creates slightly larger exes and shared libs with these options.
if [ "${_CC}" = 'llvm' ]; then
# https://maskray.me/blog/2021-05-09-fno-semantic-interposition
# https://maskray.me/blog/2021-05-16-elf-interposition-and-bsymbolic
# https://flameeyes.blog/2012/10/07/symbolism-and-elf-files-or-what-does-bsymbolic-do/
_CFLAGS_GLOBAL+=' -fno-semantic-interposition'
_CXXFLAGS_GLOBAL+=' -fno-semantic-interposition'
_LDFLAGS_GLOBAL+=' -Wl,-Bsymbolic' # -Wl,-Bsymbolic-functions (safer option, but libcurl isn't affected)
fi
fi
# curl recommended options to reduce binary size:
# https://github.com/curl/curl/blob/master/docs/INSTALL.md#reducing-size
_CFLAGS_GLOBAL+=' -fno-unwind-tables'
_CFLAGS_GLOBAL+=' -fno-asynchronous-unwind-tables'
if [ "${_OS}" != 'mac' ]; then
# May cause `osslsigncode` (as of v2.7, 2023-12) to crash while signing
# a trurl.exe built with a CMake non-unity libcurl static library. Same
# worked with unity mode.
# $ export CW_CONFIG=test-x64-zero-osnotls-osnoidn-nohttp-win-nocurltool-nounity
# $ Segmentation fault: 11 osslsigncode sign -h sha512 -in "${file}" -out "${file}-signed" -time "${unixts}" -pkcs12 "${SIGN_CODE_KEY}" -readpass [...]
# These options add extra information to static libs that allows to
# drop unused functions (instead of objects) when linking binaries.
# The end result is smaller binaries and larger static libs. It also
# resolves the downside of unity builds which generate a single object
# per lib (currently libcurl and libssh2). Build times seem to remain
# around the same. Makes '.map' files grow significantly.
_CFLAGS_GLOBAL+=' -ffunction-sections -fdata-sections'
_CXXFLAGS_GLOBAL+=' -ffunction-sections -fdata-sections'
_LDFLAGS_GLOBAL+=' -Wl,--gc-sections'
fi
if [ "${_CC}" = 'llvm' ] && [ "${_TOOLCHAIN}" != 'llvm-apple' ]; then
_LDFLAGS_GLOBAL+=' -Wl,--icf=all'
fi
_CCRT='libgcc' # compiler runtime, 'libgcc' (for libgcc and libstdc++) or 'clang-rt' (for compiler-rt and libc++)
if [ "${_TOOLCHAIN}" = 'llvm-apple' ] || \
[ "${_TOOLCHAIN}" = 'llvm-mingw' ]; then
# Not an option