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Pi build.

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This commit is contained in:
Scott Duensing 2026-09-04 22:36:58 -05:00
parent 0455657ed5
commit b8b934c271
11 changed files with 449 additions and 76 deletions
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23
CMakeLists.txt
View file

@ -36,8 +36,12 @@ if(NOT DEFINED KANGAROO_ARCH)
set(KANGAROO_ARCH x86_64)
endif()
# Where the superbuild installs the third party libraries for this platform.
set(BUILD_DIR ${CMAKE_SOURCE_DIR}/.builddir/${KANGAROO_OS}/${KANGAROO_ARCH})
# Where the superbuild installs the third party libraries for this platform. SINGE_TREE lets a
# second toolchain for the same platform keep its own tree (the zig Linux build beside the gcc one).
if(NOT DEFINED SINGE_TREE)
set(SINGE_TREE ${KANGAROO_OS})
endif()
set(BUILD_DIR ${CMAKE_SOURCE_DIR}/.builddir/${SINGE_TREE}/${KANGAROO_ARCH})
set(GENERATED_DIR ${CMAKE_BINARY_DIR}/generated)
file(MAKE_DIRECTORY ${GENERATED_DIR})
@ -476,8 +480,16 @@ target_link_directories(${CMAKE_PROJECT_NAME} PRIVATE
if(KANGAROO_OS STREQUAL "linux")
# ffmpeg's vdpau hardware context is always compiled in on X11 hosts.
set(SYSTEM_LIBS -lX11 -lvdpau -ldl -rdynamic) # -rdynamic gives the crash backtrace function names
# Release binaries are stripped; the crash backtrace reads the dynamic symbols -rdynamic exports,
# which stripping keeps.
if(CMAKE_BUILD_TYPE STREQUAL "Release")
list(APPEND SYSTEM_LIBS -s)
endif()
elseif(KANGAROO_OS STREQUAL "pi")
set(SYSTEM_LIBS -ldl)
if(CMAKE_BUILD_TYPE STREQUAL "Release")
list(APPEND SYSTEM_LIBS -s)
endif()
elseif(KANGAROO_OS STREQUAL "macos")
set(SYSTEM_LIBS
-Wl,-framework,CoreVideo
@ -495,10 +507,13 @@ elseif(KANGAROO_OS STREQUAL "macos")
-Wl,-weak_framework,CoreHaptics
-liconv
-lc++
${OSXCROSS_TARGET_DIR}/darwin/libclang_rt.osx.a
)
if(NOT SINGE_ZIG_TARGET)
# osxcross builds need clang's runtime library named; zig carries its own.
if(NOT DEFINED OSXCROSS_TARGET_DIR)
message(FATAL_ERROR "OSXCROSS_TARGET_DIR must be set for macOS builds.")
message(FATAL_ERROR "OSXCROSS_TARGET_DIR must be set for macOS builds without zig.")
endif()
list(APPEND SYSTEM_LIBS ${OSXCROSS_TARGET_DIR}/darwin/libclang_rt.osx.a)
endif()
elseif(KANGAROO_OS STREQUAL "windows")
# A GUI-subsystem executable, so no console window opens; zig's linker wants the flag spelled out.

78
CMakePresets.json
View file

@ -17,38 +17,28 @@
},
{
"name": "linux-x86_64",
"displayName": "Linux x86_64",
"displayName": "Linux x86_64 (zig, glibc 2.28, release)",
"inherits": "base",
"binaryDir": "${sourceDir}/.builddir/linux/x86_64/superbuild",
"toolchainFile": "${sourceDir}/cmake/zig/x86_64-linux-gnu.cmake",
"cacheVariables": {
"SINGE_TRIPLE": "x86_64-linux-gnu",
"SINGE_CROSS_OS": "linux",
"SINGE_SUFFIX": "",
"SINGE_TREE": "linux"
}
},
{
"name": "linux-x86_64-gcc",
"displayName": "Linux x86_64 (host gcc, developer build)",
"inherits": "base",
"binaryDir": "${sourceDir}/.builddir/linux-gcc/x86_64/superbuild",
"toolchainFile": "${sourceDir}/cmake/linux-x86_64.cmake",
"cacheVariables": {
"SINGE_TRIPLE": "x86_64-linux-gnu",
"SINGE_CROSS_OS": "linux",
"SINGE_SUFFIX": ""
}
},
{
"name": "pi-aarch64",
"displayName": "Raspberry Pi 64-bit",
"inherits": "base",
"binaryDir": "${sourceDir}/.builddir/pi/aarch64/superbuild",
"toolchainFile": "${sourceDir}/../toolchains/cmake/aarch64-rpi3-linux-gnu.cmake",
"cacheVariables": {
"SINGE_TRIPLE": "aarch64-rpi3-linux-gnu",
"SINGE_CROSS_OS": "linux",
"SINGE_SUFFIX": ""
}
},
{
"name": "macos-aarch64",
"displayName": "macOS Apple silicon",
"inherits": "base",
"binaryDir": "${sourceDir}/.builddir/macos/aarch64/superbuild",
"toolchainFile": "${sourceDir}/../toolchains/cmake/aarch64-apple-darwin22.4.cmake",
"cacheVariables": {
"SINGE_TRIPLE": "aarch64-apple-darwin22.4",
"SINGE_CROSS_OS": "darwin",
"SINGE_SUFFIX": ""
"SINGE_SUFFIX": "-gcc",
"SINGE_TREE": "linux-gcc"
}
},
{
@ -62,6 +52,30 @@
"SINGE_CROSS_OS": "mingw32",
"SINGE_SUFFIX": ".exe"
}
},
{
"name": "pi-aarch64",
"displayName": "Raspberry Pi 64-bit (zig)",
"inherits": "base",
"binaryDir": "${sourceDir}/.builddir/pi/aarch64/superbuild",
"toolchainFile": "${sourceDir}/cmake/zig/aarch64-linux-gnu.cmake",
"cacheVariables": {
"SINGE_TRIPLE": "aarch64-linux-gnu",
"SINGE_CROSS_OS": "linux",
"SINGE_SUFFIX": ""
}
},
{
"name": "macos-aarch64",
"displayName": "macOS Apple silicon (zig)",
"inherits": "base",
"binaryDir": "${sourceDir}/.builddir/macos/aarch64/superbuild",
"toolchainFile": "${sourceDir}/cmake/zig/aarch64-macos.cmake",
"cacheVariables": {
"SINGE_TRIPLE": "aarch64-apple-darwin22.4",
"SINGE_CROSS_OS": "darwin",
"SINGE_SUFFIX": ""
}
}
],
"buildPresets": [
@ -69,6 +83,14 @@
"name": "linux-x86_64",
"configurePreset": "linux-x86_64"
},
{
"name": "linux-x86_64-gcc",
"configurePreset": "linux-x86_64-gcc"
},
{
"name": "windows-x86_64",
"configurePreset": "windows-x86_64"
},
{
"name": "pi-aarch64",
"configurePreset": "pi-aarch64"
@ -76,10 +98,6 @@
{
"name": "macos-aarch64",
"configurePreset": "macos-aarch64"
},
{
"name": "windows-x86_64",
"configurePreset": "windows-x86_64"
}
]
}

43
INSTALL
View file

@ -63,16 +63,41 @@ pkg-config perl nasm imagemagick lua5.4 ffmpeg asciidoctor
ruby-asciidoctor-pdf autoconf automake libtool libasound-dev libxi-dev
libvdpau-dev libva-dev libdrm-dev libgl-dev libx11-dev.
Cross builds need nothing else installed:
The Linux release build and the Windows build use zig as the compiler:
the build fetches a pinned zig release (version and SHA-256 in
cmake/zig/zig.cmake) into .builddir/toolchains on first use. For Linux it
targets glibc 2.28, so the binary runs on distributions back to Debian 10
and Ubuntu 18.04 while linking the host's platform libraries (X11, ALSA,
VA-API, VDPAU, DRM); for Windows zig carries the headers and import
libraries itself, so nothing else is installed:
./build-all.sh windows x86_64
fetches a pinned zig release (version and SHA-256 in cmake/zig/zig.cmake)
into .builddir/toolchains on first use and uses it as the cross compiler;
zig carries the Windows headers and import libraries itself. The Pi and
macOS presets are not yet self-contained; they still expect the toolchains
repository beside this one (see PLAN.md section 17 for the plan to move
them to zig too).
A developer build with the host's own gcc, glibc and symbols is the
linux-x86_64-gcc preset (binary Singe-v3.00-Linux-x86_64-gcc).
macOS builds with zig too, but needs an Apple SDK for the frameworks,
which Apple's licence does not allow a build script to fetch. Provide it
once as a tarball holding a single MacOSX*.sdk directory:
.builddir/toolchains/MacOSX.sdk.tar.xz
On a Mac with Xcode installed, osxcross's tools/gen_sdk_package.sh makes
exactly that tarball from the installed SDK. The build unpacks it to
.builddir/toolchains/MacOSX.sdk on first use. Alternatively point
SINGE_MACOS_SDK at an unpacked SDK, or set SINGE_MACOS_SDK_URL (and
SINGE_MACOS_SDK_SHA256) to have the build fetch the tarball from a
location of your choosing. Then:
./build-all.sh macos aarch64
The Raspberry Pi build (64-bit Raspberry Pi OS, glibc 2.31 or newer)
also uses zig. The platform headers and libraries it links against are
Debian bookworm arm64 packages listed in cmake/zig/piPackages.cmake,
fetched from snapshot.debian.org and unpacked with dpkg-deb into
.builddir/toolchains/sysroot-aarch64-linux-gnu on first use:
./build-all.sh pi aarch64
Useful forms (anything after the platform goes to cmake --build):
@ -83,5 +108,5 @@ Without the wrapper:
cmake --preset linux-x86_64 && cmake --build --preset linux-x86_64
Presets: linux-x86_64, windows-x86_64, pi-aarch64, macos-aarch64
(CMakePresets.json).
Presets: linux-x86_64, linux-x86_64-gcc, windows-x86_64, pi-aarch64,
macos-aarch64 (CMakePresets.json).

16
build-all.sh
View file

@ -39,20 +39,8 @@ function buildAll() {
local ARCH=$2
shift 2
# Linux builds with the host compiler and Windows with the zig the build fetches itself. The Pi
# and macOS presets still lean on the toolchains repository beside this one until they move to
# zig as well (PLAN.md section 17).
if [[ "${OS}" == "pi" || "${OS}" == "macos" ]]; then
if [[ ! -x ../toolchains/toolchains.sh ]]; then
echo "error: ${OS} still needs ../toolchains/toolchains.sh" >&2
exit 1
fi
source <(../toolchains/toolchains.sh use ${ARCH} ${OS})
if [[ "${OS}" == "pi" ]]; then
sudo chroot ${SYSROOT} apt-get -y install libasound-dev libxi-dev libvdpau-dev libdrm-dev
fi
fi
# Every platform builds with the zig the build fetches itself; the Pi preset also fetches its
# platform packages and macOS needs the Apple SDK tarball (see INSTALL).
cmake --preset ${OS}-${ARCH}
cmake --build --preset ${OS}-${ARCH} "$@"
}

39
cmake/Superbuild.cmake
View file

@ -81,7 +81,7 @@ set(SB_PKG_CONFIG_LIBDIR "${SB_PREFIX}/lib/pkgconfig")
if(KANGAROO_OS STREQUAL "linux")
set(SB_PKG_CONFIG_LIBDIR "${SB_PKG_CONFIG_LIBDIR}:/usr/lib/${SINGE_TRIPLE}/pkgconfig:/usr/lib/pkgconfig:/usr/share/pkgconfig")
elseif(KANGAROO_OS STREQUAL "pi")
set(SB_PKG_CONFIG_LIBDIR "${SB_PKG_CONFIG_LIBDIR}:${CMAKE_SYSROOT}/usr/lib/${SINGE_TRIPLE}/pkgconfig:${CMAKE_SYSROOT}/usr/lib/pkgconfig:${CMAKE_SYSROOT}/usr/share/pkgconfig")
set(SB_PKG_CONFIG_LIBDIR "${SB_PKG_CONFIG_LIBDIR}:${SINGE_SYSROOT}/usr/lib/${SINGE_TRIPLE}/pkgconfig:${SINGE_SYSROOT}/usr/lib/pkgconfig:${SINGE_SYSROOT}/usr/share/pkgconfig")
elseif(DEFINED ENV{PKG_CONFIG_LIBDIR})
set(SB_PKG_CONFIG_LIBDIR "${SB_PKG_CONFIG_LIBDIR}:$ENV{PKG_CONFIG_LIBDIR}")
endif()
@ -104,7 +104,7 @@ function(singeStepEnv outVar cflags)
list(APPEND env "AR=${CMAKE_AR}")
endif()
if(KANGAROO_OS STREQUAL "pi")
list(APPEND env "PKG_CONFIG_SYSROOT_DIR=${CMAKE_SYSROOT}")
list(APPEND env "PKG_CONFIG_SYSROOT_DIR=${SINGE_SYSROOT}")
endif()
set(${outVar} ${env} PARENT_SCOPE)
endfunction()
@ -210,6 +210,8 @@ elseif(KANGAROO_OS STREQUAL "macos")
else()
set(opensslTarget darwin64-x86_64)
endif()
elseif(SINGE_ZIG_TARGET)
set(opensslTarget linux-x86_64)
else()
set(opensslTarget "")
endif()
@ -221,13 +223,14 @@ else()
set(opensslAsm "")
endif()
# OpenSSL's Configure derives the source tree from the build directory's position and only
# copes with a build directory nested inside its own tree, so this one lives there.
set(opensslBinary ${SB_THIRDPARTY}/openssl/.builddir)
# copes with a build directory nested inside its own tree, so this one lives there, one per target
# so that switching presets never links another architecture's objects.
set(opensslBinary ${SB_THIRDPARTY}/openssl/.builddir/${KANGAROO_OS}-${KANGAROO_ARCH})
ExternalProject_Add(openssl
SOURCE_DIR ${SB_THIRDPARTY}/openssl
BINARY_DIR ${opensslBinary}
DEPENDS zlib zstd
CONFIGURE_COMMAND ${SB_ENV} perl ../Configure ${opensslTarget} --prefix=${SB_PREFIX} --libdir=lib --with-zlib-include=${SB_PREFIX}/include --with-zlib-lib=${SB_PREFIX}/lib --with-zstd-include=${SB_PREFIX}/include --with-zstd-lib=${SB_PREFIX}/lib ${opensslAsm} no-apps no-docs no-dso no-dynamic-engine no-module no-shared no-tests zlib enable-zstd
CONFIGURE_COMMAND ${SB_ENV} perl ../../Configure ${opensslTarget} --prefix=${SB_PREFIX} --libdir=lib --with-zlib-include=${SB_PREFIX}/include --with-zlib-lib=${SB_PREFIX}/lib --with-zstd-include=${SB_PREFIX}/include --with-zstd-lib=${SB_PREFIX}/lib ${opensslAsm} no-apps no-docs no-dso no-dynamic-engine no-module no-shared no-tests zlib enable-zstd
BUILD_COMMAND ${SB_ENV} make build_sw
INSTALL_COMMAND ${SB_ENV} make install_sw
LOG_CONFIGURE ON LOG_BUILD ON LOG_INSTALL ON LOG_OUTPUT_ON_FAILURE ON
@ -241,8 +244,6 @@ if(KANGAROO_OS STREQUAL "linux")
set(hwaccel --enable-vaapi --enable-vdpau --enable-libdrm)
elseif(KANGAROO_OS STREQUAL "pi")
set(hwaccel --enable-v4l2-m2m --enable-libdrm)
# FFmpeg still includes a header the Pi's libc dropped.
file(WRITE ${SB_PREFIX}/include/sys/sysctl.h "/* File no longer used */\n")
elseif(KANGAROO_OS STREQUAL "macos")
set(hwaccel --enable-videotoolbox)
elseif(KANGAROO_OS STREQUAL "windows")
@ -250,13 +251,22 @@ elseif(KANGAROO_OS STREQUAL "windows")
else()
set(hwaccel "")
endif()
# With a classic cross toolchain every tool is <triple>-<tool>; with zig each is named outright and
# the host's nm reads the target's objects (binutils understands PE and Mach-O).
# With a classic cross toolchain every tool is <triple>-<tool>; with zig each is named outright.
if(SINGE_ZIG_TARGET)
set(ffmpegTools --enable-cross-compile --cc=${SB_CC} --cxx=${SB_CXX} --ar=${CMAKE_AR} --ranlib=${SB_RANLIB} --nm=nm --windres=${CMAKE_RC_COMPILER})
set(ffmpegTools --enable-cross-compile --cc=${SB_CC} --cxx=${SB_CXX} --ar=${CMAKE_AR} --ranlib=${SB_RANLIB} --windres=${CMAKE_RC_COMPILER})
# The host's binutils nm reads x86 ELF and PE objects but not aarch64 or Mach-O ones; FFmpeg only
# uses nm to learn the symbol prefix, which is empty everywhere but macOS, so the others go without.
if(KANGAROO_ARCH STREQUAL "x86_64")
list(APPEND ffmpegTools --nm=nm)
endif()
else()
set(ffmpegTools --cross-prefix=${SINGE_TRIPLE}- --cc=${SB_CC} --cxx=${SB_CXX} --ranlib=${SB_RANLIB})
endif()
# FFmpeg's configure sees sys/sysctl.h in the Pi sysroot and in zig's glibc header set, then its
# build cannot include it; an empty stand-in satisfies both (Linux uses sysconf, not sysctl).
if((KANGAROO_OS STREQUAL "pi") OR ((KANGAROO_OS STREQUAL "linux") AND SINGE_ZIG_TARGET))
file(WRITE ${SB_PREFIX}/include/sys/sysctl.h "/* File no longer used */\n")
endif()
set(ffmpegBinary ${SB_PREFIX}/build/ffmpeg)
ExternalProject_Add(ffmpeg
SOURCE_DIR ${SB_THIRDPARTY}/ffmpeg
@ -274,15 +284,18 @@ singeRebuildTarget(ffmpeg)
string(SUBSTRING ${KANGAROO_OS} 0 1 osInitial)
string(SUBSTRING ${KANGAROO_OS} 1 -1 osRest)
string(TOUPPER ${osInitial} osInitial)
set(singeBinaryName "Singe-v${PROJECT_VERSION}-${osInitial}${osRest}-${KANGAROO_ARCH}${SINGE_SUFFIX}")
# The built file carries the platform's executable suffix; the copy in .builddir/ carries the
# preset's, which is the same thing for Windows and lets an experimental build live beside another.
set(singeBinaryBase "Singe-v${PROJECT_VERSION}-${osInitial}${osRest}-${KANGAROO_ARCH}")
set(singeBinaryName "${singeBinaryBase}${SINGE_SUFFIX}")
set(singeBinary ${SB_PREFIX}/singe)
ExternalProject_Add(singe
SOURCE_DIR ${CMAKE_SOURCE_DIR}
BINARY_DIR ${singeBinary}
DEPENDS zlib zstd SDL3 SDL3_image SDL3_mixer SDL3_ttf openssl ffmpeg
CONFIGURE_COMMAND ${SB_ENV} ${CMAKE_COMMAND} -S ${CMAKE_SOURCE_DIR} -B ${singeBinary} ${SB_CMAKE_ARGS} -DSINGE_SUPERBUILD=OFF -DKANGAROO_OS=${KANGAROO_OS} -DKANGAROO_ARCH=${KANGAROO_ARCH}
CONFIGURE_COMMAND ${SB_ENV} ${CMAKE_COMMAND} -S ${CMAKE_SOURCE_DIR} -B ${singeBinary} ${SB_CMAKE_ARGS} -DSINGE_SUPERBUILD=OFF -DKANGAROO_OS=${KANGAROO_OS} -DKANGAROO_ARCH=${KANGAROO_ARCH} -DSINGE_TREE=${SINGE_TREE}
BUILD_COMMAND ${SB_ENV} ${CMAKE_COMMAND} --build ${singeBinary} --parallel ${SB_JOBS}
INSTALL_COMMAND ${CMAKE_COMMAND} -E copy ${singeBinary}/${singeBinaryName} ${CMAKE_SOURCE_DIR}/.builddir/${singeBinaryName}
INSTALL_COMMAND ${CMAKE_COMMAND} -E copy ${singeBinary}/${singeBinaryBase}${CMAKE_EXECUTABLE_SUFFIX} ${CMAKE_SOURCE_DIR}/.builddir/${singeBinaryName}
BUILD_ALWAYS ON
)

93
cmake/zig/aarch64-linux-gnu.cmake Normal file
View file

@ -0,0 +1,93 @@
#
# Singe 3
# Copyright (C) 2006-2026 Scott Duensing <scott@kangaroopunch.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public Licens
# as published by the Free Software Foundation; either version 3
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
#
# Raspberry Pi (64-bit Raspberry Pi OS) with zig as the compiler. zig supplies glibc pinned to the
# version below plus the kernel headers; the platform libraries Singe, SDL3 and FFmpeg build against
# (libdrm, ALSA, X11, GBM/EGL/GLES, udev, ...) come from the Debian packages listed in
# piPackages.cmake, downloaded and unpacked into a sysroot under .builddir/toolchains on first use.
# Nothing outside the source tree is touched; dpkg-deb from the host does the unpacking.
include(${CMAKE_CURRENT_LIST_DIR}/zig.cmake)
include(${CMAKE_CURRENT_LIST_DIR}/piPackages.cmake)
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_PROCESSOR aarch64)
# Raspberry Pi OS bullseye shipped glibc 2.31; a binary built against it runs there and on everything since.
set(SINGE_GLIBC_VERSION 2.31)
get_filename_component(piToolchains ${CMAKE_CURRENT_LIST_DIR}/../../.builddir/toolchains ABSOLUTE)
set(SINGE_SYSROOT ${piToolchains}/sysroot-aarch64-linux-gnu CACHE PATH "Pi platform headers and libraries" FORCE)
set(piDebs ${piToolchains}/debs-aarch64-linux-gnu)
set(piStamp ${SINGE_SYSROOT}/.complete)
# The stamp holds the manifest that built the sysroot; a changed manifest rebuilds it.
string(SHA256 piManifest "${piPackages}")
set(piHave "")
if(EXISTS ${piStamp})
file(READ ${piStamp} piHave)
string(STRIP "${piHave}" piHave)
endif()
if(NOT piHave STREQUAL piManifest)
find_program(SINGE_DPKG_DEB dpkg-deb)
if(NOT SINGE_DPKG_DEB)
message(FATAL_ERROR "dpkg-deb is needed to unpack the Pi sysroot packages (apt-get install dpkg).")
endif()
message(STATUS "Building the Pi sysroot in ${SINGE_SYSROOT}")
file(REMOVE_RECURSE ${SINGE_SYSROOT})
file(MAKE_DIRECTORY ${SINGE_SYSROOT} ${piDebs})
foreach(entry IN LISTS piPackages)
string(REGEX MATCH "^([^|]*)\\|(.*)$" unused "${entry}")
set(url ${CMAKE_MATCH_1})
set(sha ${CMAKE_MATCH_2})
get_filename_component(deb ${url} NAME)
set(debPath ${piDebs}/${deb})
if(NOT EXISTS ${debPath})
message(STATUS "Downloading ${deb}")
file(DOWNLOAD ${url} ${debPath} EXPECTED_HASH SHA256=${sha} STATUS status)
list(GET status 0 code)
if(NOT code EQUAL 0)
file(REMOVE ${debPath})
message(FATAL_ERROR "Download of ${url} failed: ${status}")
endif()
endif()
execute_process(COMMAND ${SINGE_DPKG_DEB} -x ${debPath} ${SINGE_SYSROOT} RESULT_VARIABLE code)
if(NOT code EQUAL 0)
message(FATAL_ERROR "Unpacking ${deb} failed.")
endif()
endforeach()
file(WRITE ${piStamp} "${piManifest}\n")
endif()
# The sysroot's headers come after zig's own; its libraries are linked by name and left unresolved
# at link time (they are only stubs for what the Pi provides at run time).
set(piLibs ${SINGE_SYSROOT}/usr/lib/aarch64-linux-gnu)
singeZigToolchain(aarch64-linux-gnu.${SINGE_GLIBC_VERSION} "-idirafter ${SINGE_SYSROOT}/usr/include/aarch64-linux-gnu -idirafter ${SINGE_SYSROOT}/usr/include -L${piLibs} -L${SINGE_SYSROOT}/lib/aarch64-linux-gnu -Wl,--allow-shlib-undefined")
# find_package and pkg-config look only in the sysroot; programs come from the host.
set(CMAKE_FIND_ROOT_PATH ${SINGE_SYSROOT})
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
set(CMAKE_LIBRARY_ARCHITECTURE aarch64-linux-gnu CACHE STRING "" FORCE)
set(CMAKE_C_LIBRARY_ARCHITECTURE aarch64-linux-gnu CACHE STRING "" FORCE)
set(CMAKE_LIBRARY_PATH ${piLibs} CACHE PATH "" FORCE)
set(KANGAROO_OS pi)
set(KANGAROO_ARCH aarch64)

81
cmake/zig/aarch64-macos.cmake Normal file
View file

@ -0,0 +1,81 @@
#
# Singe 3
# Copyright (C) 2006-2026 Scott Duensing <scott@kangaroopunch.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public Licens
# as published by the Free Software Foundation; either version 3
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
#
# macOS on Apple silicon with zig as the compiler. zig carries the macOS libc headers and the
# libSystem stub itself; everything else (Cocoa, CoreAudio, VideoToolbox, Metal and the rest of
# the frameworks, libc++, libiconv) comes from an Apple SDK, which Apple does not let a build
# script fetch. The SDK is expected, in this order:
# 1. an unpacked SDK at SINGE_MACOS_SDK (default .builddir/toolchains/MacOSX.sdk);
# 2. a tarball at .builddir/toolchains/MacOSX.sdk.tar.xz, unpacked on first use;
# 3. SINGE_MACOS_SDK_URL (with SINGE_MACOS_SDK_SHA256), downloaded and unpacked on first use.
# See INSTALL for how to make the tarball from Xcode.
include(${CMAKE_CURRENT_LIST_DIR}/zig.cmake)
set(CMAKE_SYSTEM_NAME Darwin)
set(CMAKE_SYSTEM_PROCESSOR arm64)
get_filename_component(sdkToolchains ${CMAKE_CURRENT_LIST_DIR}/../../.builddir/toolchains ABSOLUTE)
set(SINGE_MACOS_SDK ${sdkToolchains}/MacOSX.sdk CACHE PATH "Unpacked Apple SDK for the macOS build")
set(SINGE_MACOS_SDK_URL "" CACHE STRING "Where to fetch the Apple SDK tarball from, if anywhere")
set(SINGE_MACOS_SDK_SHA256 "" CACHE STRING "SHA-256 of that tarball")
set(sdkTarball ${sdkToolchains}/MacOSX.sdk.tar.xz)
if(NOT EXISTS ${SINGE_MACOS_SDK}/System/Library/Frameworks/Cocoa.framework)
if((NOT EXISTS ${sdkTarball}) AND SINGE_MACOS_SDK_URL)
message(STATUS "Downloading the Apple SDK from ${SINGE_MACOS_SDK_URL}")
file(MAKE_DIRECTORY ${sdkToolchains})
if(SINGE_MACOS_SDK_SHA256)
file(DOWNLOAD ${SINGE_MACOS_SDK_URL} ${sdkTarball} EXPECTED_HASH SHA256=${SINGE_MACOS_SDK_SHA256} STATUS status)
else()
file(DOWNLOAD ${SINGE_MACOS_SDK_URL} ${sdkTarball} STATUS status)
endif()
list(GET status 0 code)
if(NOT code EQUAL 0)
message(FATAL_ERROR "Apple SDK download failed: ${status}")
endif()
endif()
if(EXISTS ${sdkTarball})
message(STATUS "Unpacking ${sdkTarball}")
set(sdkUnpack ${sdkToolchains}/MacOSX.sdk.unpack)
file(REMOVE_RECURSE ${sdkUnpack})
file(ARCHIVE_EXTRACT INPUT ${sdkTarball} DESTINATION ${sdkUnpack})
file(GLOB sdkFound LIST_DIRECTORIES true ${sdkUnpack}/*.sdk ${sdkUnpack}/*/*.sdk)
list(LENGTH sdkFound sdkCount)
if(NOT sdkCount EQUAL 1)
message(FATAL_ERROR "${sdkTarball} should hold exactly one MacOSX*.sdk directory; found ${sdkCount}.")
endif()
file(RENAME ${sdkFound} ${SINGE_MACOS_SDK})
file(REMOVE_RECURSE ${sdkUnpack})
endif()
endif()
if(NOT EXISTS ${SINGE_MACOS_SDK}/System/Library/Frameworks/Cocoa.framework)
message(FATAL_ERROR "No Apple SDK at ${SINGE_MACOS_SDK}. Put an SDK tarball at ${sdkTarball} (see INSTALL), or set SINGE_MACOS_SDK to an unpacked SDK, or SINGE_MACOS_SDK_URL to fetch one.")
endif()
# The SDK's headers come after zig's own libc headers; frameworks and stub libraries from the SDK.
singeZigToolchain(aarch64-macos "--sysroot=${SINGE_MACOS_SDK} -idirafter ${SINGE_MACOS_SDK}/usr/include -F${SINGE_MACOS_SDK}/System/Library/Frameworks -L${SINGE_MACOS_SDK}/usr/lib")
set(CMAKE_OSX_SYSROOT ${SINGE_MACOS_SDK} CACHE PATH "Apple SDK" FORCE)
set(CMAKE_OSX_ARCHITECTURES "" CACHE STRING "Left empty; the zig target names the architecture" FORCE)
set(CMAKE_FIND_ROOT_PATH ${SINGE_MACOS_SDK})
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
set(KANGAROO_OS macos)
set(KANGAROO_ARCH aarch64)

78
cmake/zig/piPackages.cmake Normal file
View file

@ -0,0 +1,78 @@
# Debian bookworm arm64 packages that give the Pi build its platform headers and stub libraries
# (libdrm, ALSA, X11, GBM/EGL/GLES, udev, dbus, Wayland, PulseAudio). zig supplies libc and the
# kernel headers itself, so no libc6 package is here. Every line is a permanent snapshot.debian.org
# URL and the SHA-256 Debian publishes for it; regenerate against a newer snapshot when needed.
# Format: one "url|sha256" pair per list element.
set(piPackagesSnapshot "https://snapshot.debian.org/archive/debian/20250901T000000Z")
set(piPackages
"${piPackagesSnapshot}/pool/main/libd/libdrm/libdrm-dev_2.4.114-1+b1_arm64.deb|26d7d0dcbbda8ed023b57989e0fca7f0ff8372daaf654daf8b3a362557be5e21"
"${piPackagesSnapshot}/pool/main/libd/libdrm/libdrm2_2.4.114-1+b1_arm64.deb|f5f15a46d02cf5d9fa52d4f1c54b8cf80c398711ad771a9938b12399b8d8090c"
"${piPackagesSnapshot}/pool/main/libd/libdrm/libdrm-amdgpu1_2.4.114-1+b1_arm64.deb|24692e933b98b2b8b80d87c45728efa2bc7176120ce9efcb8793407e508b5a32"
"${piPackagesSnapshot}/pool/main/libd/libdrm/libdrm-nouveau2_2.4.114-1+b1_arm64.deb|2acf0db609e8569dd89eea5f3e6f27968de50474d31213665901ad1c6d1133de"
"${piPackagesSnapshot}/pool/main/libd/libdrm/libdrm-radeon1_2.4.114-1+b1_arm64.deb|e53c2b4be53b4a8e6413887525c9172bdc95ed3a140a52ce23d6e1a68789aaa0"
"${piPackagesSnapshot}/pool/main/a/alsa-lib/libasound2-dev_1.2.8-1+b1_arm64.deb|263668e5ce831d3a8426bd342beba7e94925e893a4a5a285252b8f3ed6b3f5ee"
"${piPackagesSnapshot}/pool/main/a/alsa-lib/libasound2_1.2.8-1+b1_arm64.deb|9fa889400fcee4b92c8f4a2fafbb7f2cd33444d9ec1665a71002ab67c06114bb"
"${piPackagesSnapshot}/pool/main/a/alsa-lib/libasound2-data_1.2.8-1_all.deb|fe0780d2d3674b2977e0acb0d48b448ad72ba1642564b7dc537f55e839984c2d"
"${piPackagesSnapshot}/pool/main/libx/libx11/libx11-dev_1.8.4-2+deb12u2_arm64.deb|34bfc833561de983cfb4475523fedc13abb4faee14a876300de659591779add8"
"${piPackagesSnapshot}/pool/main/libx/libx11/libx11-6_1.8.4-2+deb12u2_arm64.deb|d1d533e983582282a9ea82c87ac5ce715a9b67bd6d1acbd2439a11c63c36549b"
"${piPackagesSnapshot}/pool/main/libx/libxcb/libxcb1-dev_1.15-1_arm64.deb|87b5c3f1bb130727df68295ecfaadc305ee10c150afeb1a183e95b9150e18db5"
"${piPackagesSnapshot}/pool/main/libx/libxcb/libxcb1_1.15-1_arm64.deb|041d9a68415c3ccf3ce8f4f8b88e4bbfb5dc1f0d97013c6ef8423e620ea50f84"
"${piPackagesSnapshot}/pool/main/libx/libxau/libxau-dev_1.0.9-1_arm64.deb|21db3761a8f388fc83707c00fac645d4332737a859dd727571e1e6ede003b048"
"${piPackagesSnapshot}/pool/main/libx/libxau/libxau6_1.0.9-1_arm64.deb|36c2bf400641a80521093771dc2562c903df4065f9eb03add50d90564337ea6c"
"${piPackagesSnapshot}/pool/main/libx/libxdmcp/libxdmcp-dev_1.1.2-3_arm64.deb|6fd0bc51f3a4e6b7f944f24f15524a4c4ba68a4b0aa136c18bdb96a2d36988f2"
"${piPackagesSnapshot}/pool/main/libx/libxdmcp/libxdmcp6_1.1.2-3_arm64.deb|e92569ac33247261aa09adfadc34ced3994ac301cf8b58de415a2d5dbf15ccfc"
"${piPackagesSnapshot}/pool/main/x/xorgproto/x11proto-dev_2022.1-1_all.deb|3cab66a6591774188a568f9b54c4e7956f18da76e0e0fc4a779db5f6bcc3f148"
"${piPackagesSnapshot}/pool/main/x/xorg-sgml-doctools/xorg-sgml-doctools_1.11-1.1_all.deb|168345058319094e475a87ace66f5fb6ae802109650ea8434d672117982b5d0a"
"${piPackagesSnapshot}/pool/main/libx/libxext/libxext-dev_1.3.4-1+b1_arm64.deb|07f5e3efeba9564071885b2d0d2ba277692fa309a9f05ef862688af0022b1fcf"
"${piPackagesSnapshot}/pool/main/libx/libxext/libxext6_1.3.4-1+b1_arm64.deb|5e9c0ad606eb4674c645fe8e0e64330c47d2729f7a59ed569848610efd5d5b62"
"${piPackagesSnapshot}/pool/main/libx/libxi/libxi-dev_1.8-1+b1_arm64.deb|4a5e7bc3b4e55c23281b2e500b572a61ae8869b1bc03fe14b4ae5a4c9e3c295c"
"${piPackagesSnapshot}/pool/main/libx/libxi/libxi6_1.8-1+b1_arm64.deb|b26383c9929d8bfba051eee22301e064d17039ed022bbf31990feb0d7a03b36c"
"${piPackagesSnapshot}/pool/main/libx/libxfixes/libxfixes-dev_6.0.0-2_arm64.deb|25266e1bd10c7624210abf3aa3eb85e3886b6c8c08b2ecc396b8a04f24c10082"
"${piPackagesSnapshot}/pool/main/libx/libxfixes/libxfixes3_6.0.0-2_arm64.deb|d47bda8fed01b19b41d503e2df05d9166c58e30e2376f2f8784ceb7a834befe6"
"${piPackagesSnapshot}/pool/main/libx/libxrandr/libxrandr-dev_1.5.2-2+b1_arm64.deb|f951a3813c525bc950e21e801837dfe447bdbef4d2610eddbd833d7d41f92c7c"
"${piPackagesSnapshot}/pool/main/libx/libxrandr/libxrandr2_1.5.2-2+b1_arm64.deb|f0bc7f79fee182caae176652fdb1bf349d13b9591b10ad4dc1c896521da8e49f"
"${piPackagesSnapshot}/pool/main/libx/libxrender/libxrender-dev_0.9.10-1.1_arm64.deb|26a3ef50910cae3422c20af90a4a4deb85e7da3680c9192e50efc01b7e1b2f8f"
"${piPackagesSnapshot}/pool/main/libx/libxrender/libxrender1_0.9.10-1.1_arm64.deb|f260193deb4eaf0b410a1c61e1f84804366ee3372b8bad9f38005f7dbcd89aae"
"${piPackagesSnapshot}/pool/main/libx/libxcursor/libxcursor-dev_1.2.1-1_arm64.deb|5d0a0e62fcb202d9afc08c95d6b44e28211e63a6f0763e05741561ac2580aaa1"
"${piPackagesSnapshot}/pool/main/libx/libxcursor/libxcursor1_1.2.1-1_arm64.deb|a93dd172bdd940de4ac6fd2b7a3f0213604c975f9f2f51eb3013f50886aaa87c"
"${piPackagesSnapshot}/pool/main/libx/libxtst/libxtst-dev_1.2.3-1.1_arm64.deb|4e205710dd04f9e9ee360da0161c155be01086e36462fead392b707b3857b4f2"
"${piPackagesSnapshot}/pool/main/libx/libxtst/libxtst6_1.2.3-1.1_arm64.deb|ef2a1b9ac3f2620d96e17744e41c4eefb7f491eee3bcc5bc1e592180b2d94128"
"${piPackagesSnapshot}/pool/main/libx/libxss/libxss-dev_1.2.3-1_arm64.deb|970b39c57df5c1307f905c6dd89967d548e9e2711a2099241de7b8e8831e40ca"
"${piPackagesSnapshot}/pool/main/libx/libxss/libxss1_1.2.3-1_arm64.deb|e0ff80e309eacda5face68b9a3bd56718fed2750af429324c35d7c9491c335f4"
"${piPackagesSnapshot}/pool/main/libx/libxinerama/libxinerama-dev_1.1.4-3_arm64.deb|64c758aef152615d99bceead07c86b03f3737dca190230b5dde1d79403288341"
"${piPackagesSnapshot}/pool/main/libx/libxinerama/libxinerama1_1.1.4-3_arm64.deb|1dc5f458f6b3245b1b128897f905717d3cf7777a5697577b246042e25311d0df"
"${piPackagesSnapshot}/pool/main/libx/libxkbcommon/libxkbcommon-dev_1.5.0-1_arm64.deb|7d39b34b202fe58e18992b439c79c149ebb1b821b58dfb863ff4898e06420699"
"${piPackagesSnapshot}/pool/main/libx/libxkbcommon/libxkbcommon0_1.5.0-1_arm64.deb|ec518d8a19796a399ab95e7bc4dfbb6bd2ed8e151f77b222df26208db412d852"
"${piPackagesSnapshot}/pool/main/m/mesa/libgbm-dev_22.3.6-1+deb12u1_arm64.deb|ba3f413f6f428b45e21d93fc5eb213bbc31ca1c15a7b265da3700100fd2475c8"
"${piPackagesSnapshot}/pool/main/m/mesa/libgbm1_22.3.6-1+deb12u1_arm64.deb|c76790e11aac46e328b6a13b34cccd3ef01fad79cfe80d2c4aa2384ac9ddb1f8"
"${piPackagesSnapshot}/pool/main/libg/libglvnd/libegl-dev_1.6.0-1_arm64.deb|8a3004f892785a5fa4c9f969c116f567a36d1c8e9b3d5fd0403055151e36c7d3"
"${piPackagesSnapshot}/pool/main/libg/libglvnd/libegl1_1.6.0-1_arm64.deb|707097a275155c600e2e9251c4ee7cdfdb2d8f50a678a850a2526a7bc9664166"
"${piPackagesSnapshot}/pool/main/libg/libglvnd/libgles-dev_1.6.0-1_arm64.deb|941e9963d64479544691f7183fe0eeae32b53b633df71c4c51263517ab2ea8f3"
"${piPackagesSnapshot}/pool/main/libg/libglvnd/libgles2_1.6.0-1_arm64.deb|efeb2717380f8411d66b3f669bb99bbd83ff09db3d4a1661533aa31af659608c"
"${piPackagesSnapshot}/pool/main/libg/libglvnd/libgl-dev_1.6.0-1_arm64.deb|56add9e710c072cf56504beed50a639f9f7c64f4e31e66958fa65a566084888c"
"${piPackagesSnapshot}/pool/main/libg/libglvnd/libgl1_1.6.0-1_arm64.deb|f4043ab47f52325973d2b608514b3469b055b65c744861c7f378755a32e799d6"
"${piPackagesSnapshot}/pool/main/libg/libglvnd/libglvnd-dev_1.6.0-1_arm64.deb|86cba4e243d10ae07cc6e769f23ecd097b2f87b722dc5ac48a48a3794cd29513"
"${piPackagesSnapshot}/pool/main/libg/libglvnd/libglvnd0_1.6.0-1_arm64.deb|d5063205fab5322ee686f33f87c6315b3fcd1335ea4e7bc8202b48ed4f9c9e83"
"${piPackagesSnapshot}/pool/main/libg/libglvnd/libglx-dev_1.6.0-1_arm64.deb|f3d6fca16c259743208df6f845aee3189eb54fed00e159811135089c16d0ad9c"
"${piPackagesSnapshot}/pool/main/libg/libglvnd/libglx0_1.6.0-1_arm64.deb|523f9b71f75e48ae605d8ef298a4b03ade26ade9a808a85329a3bd82a54b9b0d"
"${piPackagesSnapshot}/pool/main/libg/libglvnd/libopengl0_1.6.0-1_arm64.deb|4b3c6b3bc25530290cf231acac4c85b8806dda53ab6376ab22b3ec511b4fb7a0"
"${piPackagesSnapshot}/pool/main/libg/libglvnd/libopengl-dev_1.6.0-1_arm64.deb|b4ddc2d38103e9f0c3637d46334ccbf40c30e851c85f5348abc0aa37e3926822"
"${piPackagesSnapshot}/pool/main/s/systemd/libudev-dev_252.36-1~deb12u1_arm64.deb|62760a9e8fb87c2827333163efadc36c5ae66be59af18e7286d19813b8a72e03"
"${piPackagesSnapshot}/pool/main/s/systemd/libudev1_252.36-1~deb12u1_arm64.deb|5abfa6d6960f1b6a19c3d35373958d47a3a2f1221a5fe4652143fea0e0adc2ab"
"${piPackagesSnapshot}/pool/main/d/dbus/libdbus-1-dev_1.14.10-1~deb12u1_arm64.deb|817caa440feee88d53dd74432ce633af8d351552cd71014bcc8c98380c9ed88c"
"${piPackagesSnapshot}/pool/main/d/dbus/libdbus-1-3_1.14.10-1~deb12u1_arm64.deb|2a423794f44ee756f70fda67c6e47b15afe3dd22cd69e51f5d14d2ec9538f806"
"${piPackagesSnapshot}/pool/main/w/wayland/libwayland-dev_1.21.0-1_arm64.deb|932405c58195d299495230792e374ad304adadf3d3ffdc07eda3466b756adc33"
"${piPackagesSnapshot}/pool/main/w/wayland/libwayland-client0_1.21.0-1_arm64.deb|ae390cc04c2eb1de90b9a6373505b22c730ada5e72daa50c507b7f99c12faf06"
"${piPackagesSnapshot}/pool/main/w/wayland/libwayland-egl1_1.21.0-1_arm64.deb|c08124a4d9af24f058b45c88867a84697882e755ea94965795d152fe26fe57c9"
"${piPackagesSnapshot}/pool/main/w/wayland/libwayland-cursor0_1.21.0-1_arm64.deb|8c8d1a3942bc3fc9dd3ea7c679c1a314e59cdaaa700883d54d1bb3ec89db256b"
"${piPackagesSnapshot}/pool/main/w/wayland/libwayland-server0_1.21.0-1_arm64.deb|4d99e7e0503fdaa999e67d47d8612c0465e775eafa47819573da50bdb09064f2"
"${piPackagesSnapshot}/pool/main/w/wayland/libwayland-bin_1.21.0-1_arm64.deb|02e9361617b43b130ff032873a910258884160c169e89a1ca45d34d1150a2615"
"${piPackagesSnapshot}/pool/main/libd/libdecor-0/libdecor-0-dev_0.1.1-2_arm64.deb|e52fbcbbf6e755be2c642fcecc6154d9d071978d0797e7cf9ccf93d131bf4fc6"
"${piPackagesSnapshot}/pool/main/libd/libdecor-0/libdecor-0-0_0.1.1-2_arm64.deb|e88d3c2dd3336a97b8cf10ef270a264388fce81cedf8032b18f2a36b021bc6a3"
"${piPackagesSnapshot}/pool/main/p/pulseaudio/libpulse-dev_16.1+dfsg1-2+b1_arm64.deb|dac8f94dc214a77654cc62d0f1611cd4dee9cdefdc816e3056dd9fae5aa5d4a8"
"${piPackagesSnapshot}/pool/main/p/pulseaudio/libpulse0_16.1+dfsg1-2+b1_arm64.deb|26f17e3457c5fce0104a6b2f0efb75a3256b24b32ca7cfda6266373758a930cb"
"${piPackagesSnapshot}/pool/main/w/wayland/libwayland-egl-backend-dev_1.21.0-1_arm64.deb|0974da94059371e67e93d61398853c9967d0cc34cd7745b6d47d3aa47b88815d"
"${piPackagesSnapshot}/pool/main/libf/libffi/libffi-dev_3.4.4-1_arm64.deb|8ff6335f76752ef8659762435d0d88129ef0090a587520853238809bd10ef392"
"${piPackagesSnapshot}/pool/main/libf/libffi/libffi8_3.4.4-1_arm64.deb|80b5c36177dc0e29d531c7eddbed3cc7355cb490e49f8cfa5959572d161f27b3"
)

59
cmake/zig/x86_64-linux-gnu.cmake Normal file
View file

@ -0,0 +1,59 @@
#
# Singe 3
# Copyright (C) 2006-2026 Scott Duensing <scott@kangaroopunch.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public Licens
# as published by the Free Software Foundation; either version 3
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
#
# Linux x86_64 with zig as the compiler, targeting glibc 2.28 (Debian 10, Ubuntu 18.04) so one
# release binary runs on more distributions than the build host's own glibc allows. zig supplies
# libc and its headers; the platform libraries (ALSA, X11, DRM, VA-API, VDPAU, GL) and their
# headers come from the host's development packages, searched after zig's own so the host's
# newer glibc headers never shadow the pinned ones.
include(${CMAKE_CURRENT_LIST_DIR}/zig.cmake)
set(SINGE_GLIBC_VERSION 2.28)
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_PROCESSOR x86_64)
# The linker may see the host's platform libraries but never its libc, libm, libpthread or gcc
# runtime, or symbols get bound to the host's newer glibc versions. A directory of links to
# everything else under the host's library directory keeps the two apart.
set(hostLibs ${CMAKE_BINARY_DIR}/hostlibs)
file(MAKE_DIRECTORY ${hostLibs})
file(GLOB hostSharedLibs /usr/lib/x86_64-linux-gnu/lib*.so)
foreach(lib ${hostSharedLibs})
get_filename_component(name ${lib} NAME)
if(NOT name MATCHES "^lib(c|m|dl|pthread|rt|resolv|util|anl|nsl|crypt|gcc_s|stdc\\+\\+|BrokenLocale|mvec|memusage|pcprofile|SegFault|thread_db|c_malloc_debug|asan|ubsan|tsan|lsan|atomic|gomp|itm|quadmath)\\.so$")
if(NOT EXISTS ${hostLibs}/${name})
file(CREATE_LINK ${lib} ${hostLibs}/${name} SYMBOLIC)
endif()
endif()
endforeach()
# --allow-shlib-undefined: the host's platform libraries reference its newer glibc; at link time only
# their symbols matter, and the machine that runs the binary brings its own copies.
singeZigToolchain(x86_64-linux-gnu.${SINGE_GLIBC_VERSION} "-idirafter /usr/include/x86_64-linux-gnu -idirafter /usr/include -L${hostLibs} -Wl,--allow-shlib-undefined")
# No find-root restrictions: the host's development packages are the platform packages here, so
# SDL3 must find X11, Wayland, ALSA and the rest where they are. CMake learns the Debian multiarch
# library directory from gcc, not from a clang-style compiler, and its compiler detection overwrites
# a plain variable, so the settings are forced into the cache or FindX11 never sees libX11.
set(CMAKE_LIBRARY_ARCHITECTURE x86_64-linux-gnu CACHE STRING "Debian multiarch library directory name" FORCE)
set(CMAKE_C_LIBRARY_ARCHITECTURE x86_64-linux-gnu CACHE STRING "Debian multiarch library directory name" FORCE)
set(CMAKE_LIBRARY_PATH /usr/lib/x86_64-linux-gnu CACHE PATH "Where the host platform libraries live" FORCE)
set(KANGAROO_OS linux)
set(KANGAROO_ARCH x86_64)

2
cmake/zig/x86_64-windows-gnu.cmake
View file

@ -25,7 +25,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/zig.cmake)
set(CMAKE_SYSTEM_NAME Windows)
set(CMAKE_SYSTEM_PROCESSOR x86_64)
singeZigToolchain(x86_64-windows-gnu)
singeZigToolchain(x86_64-windows-gnu "")
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

11
cmake/zig/zig.cmake
View file

@ -45,8 +45,9 @@ if(NOT EXISTS ${ZIG_EXECUTABLE})
endif()
endif()
# Writes the wrapper scripts for a target into the build tree and points CMake at them.
function(singeZigToolchain target)
# Writes the wrapper scripts for a target into the build tree and points CMake at them. extra is
# appended to every compiler invocation (a target's include and library directories).
function(singeZigToolchain target extra)
set(dir ${CMAKE_BINARY_DIR}/zig-${target})
file(MAKE_DIRECTORY ${dir})
# The compiler wrappers drop one flag: FFmpeg's configure adds binutils' --pic-executable ASLR
@ -54,10 +55,12 @@ function(singeZigToolchain target)
set(filter "for a in \"$@\"; do [[ $a == -Wl,--pic-executable* ]] || args+=(\"$a\"); done")
# -fno-sanitize=undefined: zig cc instruments for UBSan by default and expects its runtime at
# link time; a release build wants neither.
foreach(tool "cc;-target ${target} -fno-sanitize=undefined" "c++;-target ${target} -fno-sanitize=undefined" "ar;" "ranlib;" "rc;")
# extra goes after the caller's arguments so the caller's -L directories are searched first.
foreach(tool "cc;-target ${target} -fno-sanitize=undefined;${extra}" "c++;-target ${target} -fno-sanitize=undefined;${extra}" "ar;;" "ranlib;;" "rc;;")
list(GET tool 0 name)
list(GET tool 1 args)
file(WRITE ${dir}/zig-${name} "#!/bin/bash\nargs=()\n${filter}\nexec \"${ZIG_EXECUTABLE}\" ${name} ${args} \"$\{args[@]}\"\n")
list(GET tool 2 after)
file(WRITE ${dir}/zig-${name} "#!/bin/bash\nargs=()\n${filter}\nexec \"${ZIG_EXECUTABLE}\" ${name} ${args} \"$\{args[@]}\" ${after}\n")
file(CHMOD ${dir}/zig-${name} PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
endforeach()
set(CMAKE_C_COMPILER ${dir}/zig-cc CACHE FILEPATH "C compiler" FORCE)