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Toolchain+Meta: Add script to build CMake from source

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Since we upstreamed CMake support for Serenity, we can use the Platform
files from upstream instead of keeping our local copy. While not added
in this commit, we can add patching capabilities for the platform files
similar to what we do for gdb, llvm, gcc, and binutils later.
This commit is contained in:
Andrew Kaster 2022-12-10 13:30:00 -07:00 committed by Andreas Kling
parent 8855334fcc
commit e4a59f664b
Notes: sideshowbarker 2024-07-18 04:46:35 +09:00 
Author: https://github.com/ADKaster
Commit: https://github.com/SerenityOS/serenity/commit/e4a59f664b
Pull-request: https://github.com/SerenityOS/serenity/pull/16421
Reviewed-by: https://github.com/timschumi
2 changed files with 67 additions and 0 deletions
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6
Meta/CMake/cmake-version.cmake Normal file
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# Note: Update this alongside Toolchain/BuildCMake.sh
set(version_ok 0)
if (CMAKE_VERSION VERSION_GREATER_EQUAL 3.25.1)
set(version_ok 1)
endif()
execute_process(COMMAND "${CMAKE_COMMAND}" -E echo "${version_ok}")

61
Toolchain/BuildCMake.sh Executable file
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#!/usr/bin/env bash
# This script builds the CMake build system
set -e
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
PREFIX_DIR="$DIR/Local/cmake"
BUILD_DIR="$DIR/Build/cmake"
TARBALLS_DIR="$DIR/Tarballs"
NPROC="nproc"
SYSTEM_NAME="$(uname -s)"
if [ "$SYSTEM_NAME" = "OpenBSD" ]; then
NPROC="sysctl -n hw.ncpuonline"
elif [ "$SYSTEM_NAME" = "FreeBSD" ]; then
NPROC="sysctl -n hw.ncpu"
elif [ "$SYSTEM_NAME" = "Darwin" ]; then
NPROC="sysctl -n hw.ncpu"
fi
[ -z "$MAKEJOBS" ] && MAKEJOBS=$($NPROC)
# Note: Update this alongside Meta/CMake/cmake-version.cmake
CMAKE_VERSION=3.25.1
CMAKE_ARCHIVE_SHA256=1c511d09516af493694ed9baf13c55947a36389674d657a2d5e0ccedc6b291d8
CMAKE_ARCHIVE=cmake-${CMAKE_VERSION}.tar.gz
CMAKE_ARCHIVE_URL=https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION}/${CMAKE_ARCHIVE}
mkdir -p "$DIR"/Tarballs
pushd "$DIR"/Tarballs
if [ ! -e "${CMAKE_ARCHIVE}" ]; then
echo "Downloading CMake from ${CMAKE_ARCHIVE_URL}..."
curl "${CMAKE_ARCHIVE_URL}" -L -o "${CMAKE_ARCHIVE}"
else
echo "${CMAKE_ARCHIVE} already exists, not downloading archive"
fi
if ! sha256sum --status -c <(echo "${CMAKE_ARCHIVE_SHA256}" "${CMAKE_ARCHIVE}"); then
echo "CMake archive SHA256 sum mismatch, please run script again"
rm -f "${CMAKE_ARCHIVE}"
exit 1
fi
if [ ! -d "cmake-${CMAKE_VERSION}" ]; then
echo "Extracting ${CMAKE_ARCHIVE}..."
tar -xf "${CMAKE_ARCHIVE}"
else
echo "cmake-${CMAKE_VERSION} already exists, not extracting archive"
fi
popd
mkdir -p "${PREFIX_DIR}"
mkdir -p "${BUILD_DIR}"
pushd "${BUILD_DIR}"
"${TARBALLS_DIR}"/cmake-"${CMAKE_VERSION}"/bootstrap --prefix="${PREFIX_DIR}" --parallel="${MAKEJOBS}"
make -j "${MAKEJOBS}"
make install
popd