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configure
executable file
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configure
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#!/bin/sh
#
# qemu configure script (c) 2003 Fabrice Bellard
#
# Unset some variables known to interfere with behavior of common tools,
# just as autoconf does. Unlike autoconf, we assume that unset exists.
unset CLICOLOR_FORCE GREP_OPTIONS BASH_ENV ENV MAIL MAILPATH CDPATH
# Don't allow CCACHE, if present, to use cached results of compile tests!
export CCACHE_RECACHE=yes
# make source path absolute
source_path=$(cd "$(dirname -- "$0")"; pwd)
if test "$PWD" = "$source_path"
then
echo "Using './build' as the directory for build output"
MARKER=build/auto-created-by-configure
if test -e build
then
if test -f $MARKER
then
rm -rf build
else
echo "ERROR: ./build dir already exists and was not previously created by configure"
exit 1
fi
fi
if ! mkdir build || ! touch $MARKER
then
echo "ERROR: Could not create ./build directory. Check the permissions on"
echo "your source directory, or try doing an out-of-tree build."
exit 1
fi
cat > GNUmakefile <<'EOF'
# This file is auto-generated by configure to support in-source tree
# 'make' command invocation
build:
@echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
@$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
@if test "$(MAKECMDGOALS)" = "distclean" && \
test -e build/auto-created-by-configure ; \
then \
rm -rf build GNUmakefile ; \
fi
%: build
@
.PHONY: build
GNUmakefile: ;
EOF
cd build
exec "$source_path/configure" "$@"
fi
# Temporary directory used for files created while
# configure runs. Since it is in the build directory
# we can safely blow away any previous version of it
# (and we need not jump through hoops to try to delete
# it when configure exits.)
TMPDIR1="config-temp"
rm -rf "${TMPDIR1}"
if ! mkdir -p "${TMPDIR1}"; then
echo "ERROR: failed to create temporary directory"
exit 1
fi
TMPB="qemu-conf"
TMPC="${TMPDIR1}/${TMPB}.c"
TMPO="${TMPDIR1}/${TMPB}.o"
TMPE="${TMPDIR1}/${TMPB}.exe"
rm -f config.log
# Print a helpful header at the top of config.log
echo "# QEMU configure log $(date)" >> config.log
printf "# Configured with:" >> config.log
# repeat the invocation to log and stdout for CI
invoke=$(printf " '%s'" "$0" "$@")
test -n "$GITLAB_CI" && echo "configuring with: $invoke"
{ echo "$invoke"; echo; echo "#"; } >> config.log
quote_sh() {
printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
}
error_exit() {
(echo
echo "ERROR: $1"
while test -n "$2"; do
echo " $2"
shift
done
echo) >&2
exit 1
}
do_compiler() {
# Run the compiler, capturing its output to the log. First argument
# is compiler binary to execute.
compiler="$1"
shift
if test -n "$BASH_VERSION"; then eval '
echo >>config.log "
funcs: ${FUNCNAME[*]}
lines: ${BASH_LINENO[*]}"
'; fi
echo $compiler "$@" >> config.log
$compiler "$@" >> config.log 2>&1 || return $?
}
do_cc() {
do_compiler "$cc" $CPU_CFLAGS "$@"
}
compile_object() {
local_cflags="$1"
do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
}
compile_prog() {
local_cflags="$1"
local_ldflags="$2"
do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -o $TMPE $TMPC \
$LDFLAGS $EXTRA_LDFLAGS $local_ldflags
}
# symbolically link $1 to $2. Portable version of "ln -sf".
symlink() {
rm -rf "$2"
mkdir -p "$(dirname "$2")"
ln -s "$1" "$2"
}
# check whether a command is available to this shell (may be either an
# executable or a builtin)
has() {
type "$1" >/dev/null 2>&1
}
version_ge () {
local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
local_ver2=$(echo "$2" | tr . ' ')
while true; do
set x $local_ver1
local_first=${2-0}
# 'shift 2' if $2 is set, or 'shift' if $2 is not set
shift ${2:+2}
local_ver1=$*
set x $local_ver2
# the second argument finished, the first must be greater or equal
test $# = 1 && return 0
test $local_first -lt $2 && return 1
test $local_first -gt $2 && return 0
shift ${2:+2}
local_ver2=$*
done
}
if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
then
error_exit "main directory cannot contain spaces nor colons"
fi
# parse CC options first; some compiler tests are used to establish
# some defaults, based on the host environment
# default parameters
container_engine="auto"
cpu=""
cross_compile="no"
cross_prefix=""
host_cc="cc"
EXTRA_CFLAGS=""
EXTRA_CXXFLAGS=""
EXTRA_OBJCFLAGS=""
EXTRA_LDFLAGS=""
# Default value for a variable defining feature "foo".
# * foo="no" feature will only be used if --enable-foo arg is given
# * foo="" feature will be searched for, and if found, will be used
# unless --disable-foo is given
# * foo="yes" this value will only be set by --enable-foo flag.
# feature will searched for,
# if not found, configure exits with error
#
# Always add --enable-foo and --disable-foo command line args.
# Distributions want to ensure that several features are compiled in, and it
# is impossible without a --enable-foo that exits if a feature is not found.
default_feature=""
for opt do
optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
case "$opt" in
--cross-prefix=*) cross_prefix="$optarg"
cross_compile="yes"
;;
--cc=*) CC="$optarg"
;;
--cxx=*) CXX="$optarg"
;;
--objcc=*) objcc="$optarg"
;;
--rustc=*) RUSTC="$optarg"
;;
--cpu=*) cpu="$optarg"
;;
--extra-cflags=*)
EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
;;
--extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
;;
--extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
;;
--extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
;;
--cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
;;
--cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
eval "cross_cc_cflags_${cc_arch}=\$optarg"
;;
--cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
eval "cross_cc_${cc_arch}=\$optarg"
;;
--cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
;;
--cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
eval "cross_prefix_${cc_arch}=\$optarg"
;;
--without-default-features) default_feature="no"
;;
esac
done
default_cflags='-O2 -g'
git_submodules_action="update"
docs="auto"
EXESUF=""
system="yes"
linux_user=""
bsd_user=""
plugins="$default_feature"
subdirs=""
ninja=""
python=
download="enabled"
skip_meson=no
use_containers="yes"
rust="disabled"
rust_target_triple=""
gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
gdb_arches=""
# Don't accept a target_list environment variable.
unset target_list
unset target_list_exclude
# The following Meson options are handled manually (still they
# are included in the automatically generated help message)
# because they automatically enable/disable other options
tcg="auto"
cfi="false"
# Meson has PIE as a boolean rather than enabled/disabled/auto,
# and we also need to check for -static-pie before Meson runs
# which requires knowing whether --static is enabled.
pie=""
static="no"
# Preferred compiler:
# ${CC} (if set)
# ${cross_prefix}gcc (if cross-prefix specified)
# system compiler
if test -z "${CC}${cross_prefix}"; then
cc="cc"
else
cc="${CC-${cross_prefix}gcc}"
fi
if test -z "${CXX}${cross_prefix}"; then
cxx="c++"
else
cxx="${CXX-${cross_prefix}g++}"
fi
# Preferred ObjC compiler:
# $objcc (if set, i.e. via --objcc option)
# ${cross_prefix}clang (if cross-prefix specified)
# clang (if available)
# $cc
if test -z "${objcc}${cross_prefix}"; then
if has clang; then
objcc=clang
else
objcc="$cc"
fi
else
objcc="${objcc-${cross_prefix}clang}"
fi
ar="${AR-${cross_prefix}ar}"
as="${AS-${cross_prefix}as}"
ccas="${CCAS-$cc}"
dlltool="${DLLTOOL-${cross_prefix}dlltool}"
objcopy="${OBJCOPY-${cross_prefix}objcopy}"
ld="${LD-${cross_prefix}ld}"
ranlib="${RANLIB-${cross_prefix}ranlib}"
nm="${NM-${cross_prefix}nm}"
readelf="${READELF-${cross_prefix}readelf}"
strip="${STRIP-${cross_prefix}strip}"
widl="${WIDL-${cross_prefix}widl}"
windres="${WINDRES-${cross_prefix}windres}"
windmc="${WINDMC-${cross_prefix}windmc}"
pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
rustc="${RUSTC-rustc}"
check_define() {
cat > $TMPC <<EOF
#if !defined($1)
#error $1 not defined
#endif
int main(void) { return 0; }
EOF
compile_object
}
write_c_skeleton() {
cat > $TMPC <<EOF
int main(void) { return 0; }
EOF
}
if check_define __linux__ ; then
host_os=linux
elif check_define _WIN32 ; then
host_os=windows
elif check_define __OpenBSD__ ; then
host_os=openbsd
elif check_define __sun__ ; then
host_os=sunos
elif check_define __HAIKU__ ; then
host_os=haiku
elif check_define __FreeBSD__ ; then
host_os=freebsd
elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
host_os=gnu/kfreebsd
elif check_define __DragonFly__ ; then
host_os=dragonfly
elif check_define __NetBSD__; then
host_os=netbsd
elif check_define __APPLE__; then
host_os=darwin
else
# This is a fatal error, but don't report it yet, because we
# might be going to just print the --help text, or it might
# be the result of a missing compiler.
host_os=bogus
fi
if test ! -z "$cpu" ; then
# command line argument
:
elif check_define __i386__ ; then
cpu="i386"
elif check_define __x86_64__ ; then
if check_define __ILP32__ ; then
cpu="x32"
else
cpu="x86_64"
fi
elif check_define __sparc__ ; then
if check_define __arch64__ ; then
cpu="sparc64"
else
cpu="sparc"
fi
elif check_define _ARCH_PPC ; then
if check_define _ARCH_PPC64 ; then
if check_define _LITTLE_ENDIAN ; then
cpu="ppc64le"
else
cpu="ppc64"
fi
else
cpu="ppc"
fi
elif check_define __mips__ ; then
if check_define __mips64 ; then
cpu="mips64"
else
cpu="mips"
fi
elif check_define __s390__ ; then
if check_define __s390x__ ; then
cpu="s390x"
else
cpu="s390"
fi
elif check_define __riscv ; then
if check_define _LP64 ; then
cpu="riscv64"
else
cpu="riscv32"
fi
elif check_define __arm__ ; then
cpu="arm"
elif check_define __aarch64__ ; then
cpu="aarch64"
elif check_define __loongarch64 ; then
cpu="loongarch64"
else
# Using uname is really broken, but it is just a fallback for architectures
# that are going to use TCI anyway
cpu=$(uname -m)
if test "$host_os" != "bogus"; then
echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
fi
fi
# Normalise host CPU name to the values used by Meson cross files and in source
# directories, and set multilib cflags. The canonicalization isn't really
# necessary, because the architectures that we check for should not hit the
# 'uname -m' case, but better safe than sorry in case --cpu= is used.
#
# Note that this case should only have supported host CPUs, not guests.
# Please keep it sorted and synchronized with meson.build's host_arch.
host_arch=
linux_arch=
raw_cpu=$cpu
case "$cpu" in
aarch64)
host_arch=aarch64
linux_arch=arm64
;;
armv*b|armv*l|arm)
cpu=arm
host_arch=arm
linux_arch=arm
;;
i386|i486|i586|i686)
cpu="i386"
host_arch=i386
linux_arch=x86
CPU_CFLAGS="-m32"
;;
loongarch*)
cpu=loongarch64
host_arch=loongarch64
linux_arch=loongarch
;;
mips64*|mipsisa64*)
cpu=mips64
host_arch=mips
linux_arch=mips
;;
mips*)
cpu=mips
host_arch=mips
linux_arch=mips
;;
ppc)
host_arch=ppc
linux_arch=powerpc
CPU_CFLAGS="-m32"
;;
ppc64)
host_arch=ppc64
linux_arch=powerpc
CPU_CFLAGS="-m64 -mbig-endian"
;;
ppc64le)
cpu=ppc64
host_arch=ppc64
linux_arch=powerpc
CPU_CFLAGS="-m64 -mlittle-endian"
;;
riscv32 | riscv64)
host_arch=riscv
linux_arch=riscv
;;
s390)
linux_arch=s390
CPU_CFLAGS="-m31"
;;
s390x)
host_arch=s390x
linux_arch=s390
CPU_CFLAGS="-m64"
;;
sparc|sun4[cdmuv])
cpu=sparc
CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
;;
sparc64)
host_arch=sparc64
CPU_CFLAGS="-m64 -mcpu=ultrasparc"
;;
x32)
cpu="x86_64"
host_arch=x86_64
linux_arch=x86
CPU_CFLAGS="-mx32"
;;
x86_64|amd64)
cpu="x86_64"
host_arch=x86_64
linux_arch=x86
CPU_CFLAGS="-m64"
;;
esac
# Now we have our CPU_CFLAGS we can check if we are targeting a 32 or
# 64 bit host.
check_64bit_host() {
cat > $TMPC <<EOF
#if __SIZEOF_POINTER__ != 8
#error not 64 bit system
#endif
int main(void) { return 0; }
EOF
compile_object "$1"
}
if check_64bit_host "$CPU_CFLAGS"; then
host_bits=64
else
host_bits=32
fi
if test -n "$host_arch" && {
! test -d "$source_path/linux-user/include/host/$host_arch" ||
! test -d "$source_path/common-user/host/$host_arch"; }; then
error_exit "linux-user/include/host/$host_arch does not exist." \
"This is a bug in the configure script, please report it."
fi
if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arch"; then
error_exit "linux-headers/asm-$linux_arch does not exist." \
"This is a bug in the configure script, please report it."
fi
check_py_version() {
# We require python >= 3.8.
# NB: a True python conditional creates a non-zero return code (Failure)
"$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
}
first_python=
if test -z "${PYTHON}"; then
# A bare 'python' is traditionally python 2.x, but some distros
# have it as python 3.x, so check in both places.
for binary in python3 python python3.12 python3.11 \
python3.10 python3.9 python3.8; do
if has "$binary"; then
python=$(command -v "$binary")
if check_py_version "$python"; then
# This one is good.
first_python=
break
else
first_python=$python
fi
fi
done
else
# Same as above, but only check the environment variable.
has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
python=$(command -v "$PYTHON")
if check_py_version "$python"; then
# This one is good.
first_python=
else
first_python=$first_python
fi
fi
# Check for ancillary tools used in testing
genisoimage=
for binary in genisoimage mkisofs
do
if has $binary
then
genisoimage=$(command -v "$binary")
break
fi
done
if test "$host_os" = "windows" ; then
EXESUF=".exe"
fi
meson_option_build_array() {
printf '['
(if test "$host_os" = windows; then
IFS=\;
else
IFS=:
fi
for e in $1; do
printf '"""'
# backslash escape any '\' and '"' characters
printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
printf '""",'
done)
printf ']\n'
}
. "$source_path/scripts/meson-buildoptions.sh"
meson_options=
meson_option_add() {
local arg
for arg; do
meson_options="$meson_options $(quote_sh "$arg")"
done
}
meson_option_parse() {
meson_options="$meson_options $(_meson_option_parse "$@")"
if test $? -eq 1; then
echo "ERROR: unknown option $1"
echo "Try '$0 --help' for more information"
exit 1
fi
}
has_meson_option() {
test "${meson_options#*"$1"}" != "$meson_options"
}
meson_add_machine_file() {
if test "$cross_compile" = "yes"; then
meson_option_add --cross-file "$1"
else
meson_option_add --native-file "$1"
fi
}
for opt do
optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
case "$opt" in
--help|-h) show_help=yes
;;
--version|-V) exec cat "$source_path/VERSION"
;;
--cross-prefix=*)
;;
--cc=*)
;;
--host-cc=*) host_cc="$optarg"
;;
--cxx=*)
;;
--objcc=*)
;;
--rustc=*)
;;
--make=*)
;;
--install=*)
;;
--python=*) python="$optarg"
;;
--skip-meson) skip_meson=yes
;;
--ninja=*) ninja="$optarg"
;;
--extra-cflags=*)
;;
--extra-cxxflags=*)
;;
--extra-objcflags=*)
;;
--extra-ldflags=*)
;;
--cross-cc-*)
;;
--cross-prefix-*)
;;
--enable-docs) docs=enabled
;;
--disable-docs) docs=disabled
;;
--cpu=*)
;;
--target-list=*) target_list="$optarg"
if test "$target_list_exclude"; then
error_exit "Can't mix --target-list with --target-list-exclude"
fi
;;
--target-list-exclude=*) target_list_exclude="$optarg"
if test "$target_list"; then
error_exit "Can't mix --target-list-exclude with --target-list"
fi
;;
--with-default-devices) meson_option_add -Ddefault_devices=true
;;
--without-default-devices) meson_option_add -Ddefault_devices=false
;;
--with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
;;
--with-devices-*) device_arch=${opt#--with-devices-};
device_arch=${device_arch%%=*}
cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
if test -f "$cf"; then
device_archs="$device_archs $device_arch"
eval "devices_${device_arch}=\$optarg"
else
error_exit "File $cf does not exist"
fi
;;
--without-default-features) # processed above
;;
--static) static="yes"
;;
--host=*|--build=*|\
--disable-dependency-tracking|\
--sbindir=*|--sharedstatedir=*|\
--oldincludedir=*|--datarootdir=*|--infodir=*|\
--htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
# These switches are silently ignored, for compatibility with
# autoconf-generated configure scripts. This allows QEMU's
# configure to be used by RPM and similar macros that set
# lots of directory switches by default.
;;
--enable-debug)
# Enable debugging options that aren't excessively noisy
meson_option_parse --enable-debug-tcg ""
meson_option_parse --enable-debug-graph-lock ""
meson_option_parse --enable-debug-mutex ""
meson_option_add -Doptimization=0
default_cflags='-O0 -g'
;;
--disable-tcg) tcg="disabled"
;;
--enable-tcg) tcg="enabled"
;;
--disable-system) system="no"
;;
--enable-system) system="yes"
;;
--disable-user)
linux_user="no" ;
bsd_user="no" ;
;;
--enable-user) ;;
--disable-linux-user) linux_user="no"
;;
--enable-linux-user) linux_user="yes"
;;
--disable-bsd-user) bsd_user="no"
;;
--enable-bsd-user) bsd_user="yes"
;;
--enable-pie) pie="yes"
;;
--disable-pie) pie="no"
;;
--enable-cfi) cfi=true
;;
--disable-cfi) cfi=false
;;
--disable-download) download="disabled"; git_submodules_action=validate;
;;
--enable-download) download="enabled"; git_submodules_action=update;
;;
--enable-plugins) plugins="yes"
;;
--disable-plugins) plugins="no"
;;
--enable-containers) use_containers="yes"
;;
--disable-containers) use_containers="no"
;;
--container-engine=*) container_engine="$optarg"
;;
--rust-target-triple=*) rust_target_triple="$optarg"
;;
--gdb=*) gdb_bin="$optarg"
;;
--enable-rust) rust=enabled
;;
--disable-rust) rust=disabled
;;
# everything else has the same name in configure and meson
--*) meson_option_parse "$opt" "$optarg"
;;
# Pass through -Dxxxx options to meson
-D*) meson_option_add "$opt"
;;
esac
done
if ! test -e "$source_path/.git"
then
git_submodules_action="validate"
fi
if ! test -f "$source_path/subprojects/keycodemapdb/README" \
&& test "$download" = disabled
then
echo
echo "ERROR: missing subprojects"
echo
if test -e "$source_path/.git"; then
echo "--disable-download specified but subprojects were not"
echo 'checked out. Please invoke "meson subprojects download"'
echo "before configuring QEMU, or remove --disable-download"
echo "from the command line."
else
echo "This is not a GIT checkout but subproject content appears to"
echo "be missing. Do not use 'git archive' or GitHub download links"
echo "to acquire QEMU source archives. Non-GIT builds are only"
echo "supported with source archives linked from:"
echo
echo " https://www.qemu.org/download/#source"
echo
echo "Developers working with GIT can use scripts/archive-source.sh"
echo "if they need to create valid source archives."
fi
echo
exit 1
fi
default_target_list=""
mak_wilds=""
if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
if [ "$linux_user" != no ]; then
if [ "$host_os" = linux ]; then
linux_user=yes
elif [ "$linux_user" = yes ]; then
error_exit "linux-user not supported on this architecture"
fi
if [ "$linux_user" = "yes" ]; then
mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
fi
fi
if [ "$bsd_user" != no ]; then
if [ "$bsd_user" = "" ]; then
test $host_os = freebsd && bsd_user=yes
fi
if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$host_os" ]; then
error_exit "bsd-user not supported on this host OS"
fi
if [ "$bsd_user" = "yes" ]; then
mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
fi
fi
else
if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
error_exit "user mode emulation not supported on this architecture"
fi
fi
if [ "$system" = "yes" ]; then
mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
fi
for config in $mak_wilds; do
target="$(basename "$config" .mak)"
if echo "$target_list_exclude" | grep -vq "$target"; then
default_target_list="${default_target_list} $target"
fi
done
if test x"$show_help" = x"yes" ; then
cat << EOF
Usage: configure [options]
Options: [defaults in brackets after descriptions]
Standard options:
--help print this message
--target-list=LIST set target list (default: build all)
$(echo Available targets: $default_target_list | \
fold -s -w 53 | sed -e 's/^/ /')
--target-list-exclude=LIST exclude a set of targets from the default target-list
Advanced options (experts only):
-Dmesonoptname=val passthrough option to meson unmodified
--cross-prefix=PREFIX use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
--cc=CC use C compiler CC [$cc]
--host-cc=CC when cross compiling, use C compiler CC for code run
at build time [$host_cc]
--cxx=CXX use C++ compiler CXX [$cxx]
--objcc=OBJCC use Objective-C compiler OBJCC [$objcc]
--rustc=RUSTC use Rust compiler RUSTC [$rustc]
--extra-cflags=CFLAGS append extra C compiler flags CFLAGS
--extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
--extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
--extra-ldflags=LDFLAGS append extra linker flags LDFLAGS
--cross-cc-ARCH=CC use compiler when building ARCH guest test cases
--cross-cc-cflags-ARCH= use compiler flags when building ARCH guest tests
--cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
--python=PYTHON use specified python [$python]
--ninja=NINJA use specified ninja [$ninja]
--static enable static build [$static]
--rust-target-triple=TRIPLE compilation target for Rust code [autodetect]
--without-default-features default all --enable-* options to "disabled"
--without-default-devices do not include any device that is not needed to
start the emulator (only use if you are including
desired devices in configs/devices/)
--with-devices-ARCH=NAME override default configs/devices
--enable-debug enable common debug build options
--cpu=CPU Build for host CPU [$cpu]
--disable-containers don't use containers for cross-building
--container-engine=TYPE which container engine to use [$container_engine]
--gdb=GDB-path gdb to use for gdbstub tests [$gdb_bin]
EOF
meson_options_help
cat << EOF
system all system emulation targets
user supported user emulation targets
linux-user all linux usermode emulation targets
bsd-user all BSD usermode emulation targets
pie Position Independent Executables
NOTE: The object files are built at the place where configure is launched
EOF
exit 0
fi
# Now that we are sure that the user did not only want to print the --help
# information, we should double-check that the C compiler really works:
write_c_skeleton
if ! compile_object ; then
error_exit "C compiler \"$cc\" either does not exist or does not work."
fi
# Remove old dependency files to make sure that they get properly regenerated
rm -f ./*/config-devices.mak.d
if test -z "$python"
then
# If first_python is set, there was a binary somewhere even though
# it was not suitable. Use it for the error message.
if test -n "$first_python"; then
error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
"Use --python=/path/to/python to specify a supported Python."
else
error_exit "Python not found. Use --python=/path/to/python"
fi
fi
if ! check_py_version "$python"; then
error_exit "Cannot use '$python', Python >= 3.8 is required." \
"Use --python=/path/to/python to specify a supported Python." \
"Maybe try:" \
" openSUSE Leap 15.3+: zypper install python39" \
" CentOS 8: dnf install python38"
fi
# Resolve PATH
python="$(command -v "$python")"
# Create a Python virtual environment using our configured python.
# The stdout of this script will be the location of a symlink that
# points to the configured Python.
# Entry point scripts for pip, meson, and sphinx are generated if those
# packages are present.
# Defaults assumed for now:
# - venv is cleared if it exists already;
# - venv is allowed to use system packages;
# - all setup can be performed offline;
# - missing packages may be fetched from PyPI,
# unless --disable-download is passed.
# - pip is not installed into the venv when possible,
# but ensurepip is called as a fallback when necessary.
echo "python determined to be '$python'"
echo "python version: $($python --version)"
python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
if test "$?" -ne 0 ; then
error_exit "python venv creation failed"
fi
# Suppress writing compiled files
python="$python -B"
mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
# Finish preparing the virtual environment using vendored .whl files