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configure
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configure
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#!/usr/bin/env bash
#
# vim:set ts=4 et:
#
# generate config.mk for gbsplay Makefile
#
# 2003-2024 (C) by Christian Garbs <mitch@cgarbs.de>
# Tobias Diedrich <ranma+gbsplay@tdiedrich.de>
#
# Licensed under GNU GPL v1 or, at your option, any later version.
#
## initialize interpreter parameters
set -u # bail on use of uninitialized variables
trap 'exit_trap' EXIT
## initialize variables
EXTRA_ALL=
EXTRA_INSTALL=
EXTRA_SRCS=
EXTRA_UNINSTALL=
EXTRA_I18NFLAGS=
CC="${CC-gcc}" # use gcc by default
CONFIGURE_FLAGS="${CONFIGURE_FLAGS- }"
CFLAGS="${CFLAGS-}"
LDFLAGS="${LDFLAGS-}"
HOSTCC="$CC"
HOSTOS=$(uname)
HOSTARCH=$(uname -m)
BUILDCC="$HOSTCC"
BUILDOS="$HOSTOS"
BUILDARCH="$HOSTARCH"
TMPDIR=${TMPDIR-/tmp}
package=gbsplay
prefix=/usr/local
exec_prefix=
bindir=
libdir=
mandir=
docdir=
localedir=
mimedir=
appdir=
includedir=
pkgconfigdir=
sysconfdir=
buildalias=
hostalias=
windows_build=
windows_libprefix=
## define sane environment
unset LC_ALL LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY \
LC_MESSAGES LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE \
LC_MEASUREMENT LC_IDENTIFICATION
LANG=C
export LANG
## set default version number to unknown
# will be overwritten on git build or tar.gz export using 'make dist'
VERSION=unknown
##### begin of subroutines
exit_trap()
{
EXIT_CODE=$?
test $EXIT_CODE -ne 0 && tail config.err
exit $EXIT_CODE
}
## die with error
die()
{
test -n "$1" && echo "$1"
rm -rf "$TEMPDIR"
exit 1
}
## check for presense of include files
check_include()
{
local include="$1"
local includedirs="${2-} /usr/local/include /opt/local/include"
local extraline="${3-}"
local includename="$(echo "$include" | sed -e 's@[/\.-]@_@g')"
eval "value=\${have_${includename}-}"
test -z "$value" || return
local flags=""
for dir in "" $includedirs; do
msg="checking for $include"
test -z "$dir" || msg="$msg in $dir"
test -z "$dir" || flags="-I$dir"
if cc_check "$msg" "have_$includename" "$flags" ok <<EOF; then
$extraline
#include <$include>
int main(int argc, char **argv) {
return 0;
}
EOF
eval "include_${includename}_path=\"$dir \""
return 0
fi
done
return 1
}
## find library path needed for lib
find_lib()
{
local INFILE="$TEMPDIR/fl.c"
local lib="$1"
local libname="$(echo "$lib" | sed -e 's@[/\.-]@_@g')"
local libdirs="${2-} /usr/local/lib /opt/local/lib"
cat > "$INFILE"
eval "val=\"\${lib${libname}_path-}\""
if [ ! -z "$val" ]; then
return 0
else
for dir in "" $libdirs; do
msg="looking for -l$lib"
flags="-l$lib"
test -z "$dir" || msg="$msg in $dir"
test -z "$dir" || flags="$flags -L$dir"
if cc_check "$msg" "" "$flags" ok < "$INFILE"; then
eval "lib${libname}_path=\"$dir \""
return 0
fi
done
fi
return 1
}
## remove duplicate flags
remove_dupes()
{
local flags="$1"
local newflags=""
for i in $flags; do
local dupe=0
for j in $newflags; do
test "$i" = "$j" && dupe=1
done
if [ $dupe -eq 0 ]; then
newflags="$(test -z "$newflags" || printf "%s " "$newflags")$i"
fi
done
echo "$newflags"
}
append_nodupe()
{
local varname="$1"
local dupe=0
while [ -n "${2-}" ]; do
eval "flags=\"\$$varname\""
local append="$2"
if [ -n "$flags" ]; then
for i in $flags; do
test "$i" = "$append" && dupe=1
done
fi
if [ $dupe -eq 0 ]; then
if [ -z "$flags" ]; then
eval "${varname}=\"$append\""
else
eval "${varname}=\"$flags $append\""
fi
fi
shift
done
}
## check for needed extra libraries and library paths for a lib
check_libs()
{
local INFILE="$TEMPDIR/cl.c"
local OUTFILE="$TEMPDIR/cl"
local checklib="$1"
local libname="$(echo "$checklib" | sed -e 's@[/\.-]@_@g' -e 's/ //g')"
local extralibs="${checklib} ${2-}"
local extralibdirs="${3-}"
local name="${4-}"
local extraflags="${5-}"
local msg="${6-$checklib}"
local cflags="$CFLAGS $LDFLAGS"
# don't let -pedantic mess with our checks
cflags="$(sed -E 's/-pedantic ?//g'<<<"$cflags")"
eval "lib${libname}_flags="
cat > "$INFILE"
cc_check "checking if we need additional libs for $msg" "" "$extraflags" "no" "yes" < "$INFILE"
test $? -eq 0 && return 0
for extralib in $extralibs; do
local libname="$(echo "$extralib" | sed -e 's@[/\.-]@_@g')"
find_lib "$extralib" "$extralibdirs" < "$INFILE"
test $? -ne 0 && return 1
eval "val=\"\$lib${libname}_path\""
if [ "$val" != " " ]; then
append_nodupe extraflags "-L$val"
fi
done
local minerrs=$($BUILDCC -o "$OUTFILE" "$INFILE" $cflags $extraflags 2>&1 | wc -l)
for extralib in $extralibs; do
local errs=$($BUILDCC -o "$OUTFILE" "$INFILE" $cflags "-l$extralib" $extraflags 2>&1 | wc -l)
if [ "$errs" -lt "$minerrs" ]; then
minerrs=$errs
append_nodupe extraflags "-l$extralib"
fi
done
if [ "$minerrs" -ne 0 ]; then
echo "...but it still won't compile cleanly"
# log the default result to config.err
(
echo "minerrs: $minerrs > 0"
cat "$INFILE"
$BUILDCC -o "$OUTFILE" "$INFILE" $cflags "-l$checklib" $extraflags
) 1>&2
return 1
fi
eval "lib${libname}_flags=\"$extraflags\""
return 0
}
## generalized 'does it compile' check
cc_check()
{
local INFILE="$TEMPDIR/cc.c"
local OUTFILE="$TEMPDIR/cc"
local name="$1"
local varname="$2"
local flags="$CFLAGS $LDFLAGS ${3-}"
local okmsg="${4-ok}"
local errmsg="${5-not found}"
test "$name" && printf "%s: " "$name"
cat > "$INFILE"
if "$BUILDCC" -o "$OUTFILE" "$INFILE" $flags; then
test "$name" && echo "$okmsg"
test "$varname" && eval "$varname=yes"
return 0
else
test "$name" && echo "$errmsg"
test "$varname" && eval "$varname=no"
return 1
fi
}
cc_has_flag()
{
local flag="$1"
cc_check "checking if cc supports ${flag}" "" "${flag} -Werror" yes no <<EOF
int main(int argc, char **argv) { return 0; }
EOF
}
need_include() {
if ! check_include "$1"; then
die "Could not find $1, which is needed for compilation."
fi
}
## config.h helper
have_x() {
local localvar="have_$(echo $1 | tr A-Z a-z)"
eval "result=\$$localvar"
if [ "$result" = "yes" ]; then
echo "#define HAVE_$1 1"
else
echo "/* #undef HAVE_$1 */"
fi
}
plugout_x() {
local localvar="use_$(echo $1 | tr A-Z a-z)"
eval "result=\$$localvar"
if [ "$result" = "yes" ]; then
echo "#define PLUGOUT_$1 1"
else
echo "/* #undef PLUGOUT_$1 */"
fi
}
use_x() {
local localvar="use_$(echo $1 | tr A-Z a-z)"
eval "result=\$$localvar"
if [ "$result" = "yes" ]; then
echo "#define USE_$1 1"
else
echo "/* #undef USE_$1 */"
fi
}
# set variable to default value if empty
# really the same as $var="${var-$default}"
setdefault()
{
eval "value=\$$1"
if [ -z "$value" ]; then
eval "$1=$2"
fi
}
# check if $1 is a known feature
isknown()
{
for i in $OPTS; do
if [ "$i" = "$1" ]; then
return 0
fi
done
if [ "${1#use_}" != "$1" ]; then
echo "unknown feature '${1#use_}'"
elif [ "${1#build_}" != "$1" ]; then
echo "unknown module '${1#build_}'"
else
echo "unknown option '$2'"
fi
echo
return 1
}
# list enabled $1 (modules, features)
# of type $2 (build, use)
printoptional()
{
printf "%s %s:" "${3-optional}" "$1"
for i in $OPTS; do
eval "val=\$$i"
if [ "${i#${2}_}" != "$i" ]; then
if [ "$val" = "yes" ]; then
printf " +%s" "${i#${2}_}"
elif [ "$val" = "no" ]; then
printf " -%s" "${i#${2}_}"
fi
fi
done
echo
}
# remember state of use_$1
remember_use()
{
eval "remembered=\$use_$1"
}
# check state of use_$1 against remembered state
# error out if option was requested but can't be satisfied after checks
recheck_use()
{
eval "val=\$use_$1"
if [ "$remembered" = 'yes' ] && [ "$val" != 'yes' ]; then
die "error: --enable-$1 was requested but is not available"
fi
}
# parse option $1
parseoption()
{
case $1 in
--prefix=*)
prefix="${1#--prefix=}"
;;
--exec-prefix=*)
exec_prefix="${1#--exec-prefix=}"
;;
--bindir=*)
bindir="${1#--bindir=}"
;;
--mandir=*)
mandir="${1#--mandir=}"
;;
--docdir=*)
docdir="${1#--docdir=}"
;;
--localedir=*)
localedir="${1#--localedir=}"
;;
--mimedir=*)
mimedir="${1#--mimedir=}"
;;
--appdir=*)
appdir="${1#--appdir=}"
;;
--includedir=*)
includedir="${1#--includedir=}"
;;
--pkgconfigdir=*)
pkgconfigdir="${1#--pkgconfigdir=}"
;;
--sysconfdir=*)
sysconfdir="${1#--sysconfdir=}"
;;
--infodir=*)
infodir="${1#--infodir=}"
;;
--datadir=*)
datadir="${1#--datadir=}"
;;
--localstatedir=*)
localstatedir="${1#--localstatedir=}"
;;
--host=*)
hostalias="${1#--host=}"
HOSTCC="${hostalias}-${CC}"
;;
--build=*)
buildalias="${1#--build=}"
BUILDCC="${buildalias}-${CC}"
;;
--have-*)
eval "have_${1#--have-}=yes"
isknown "have_${1#--have-}" "$1" || usage 1
;;
--donthave-*)
eval "have_${1#--donthave-}=no"
isknown "have_${1#--donthave-}" "$1" || usage 1
;;
--enable-*)
eval "use_${1#--enable-}=yes"
isknown "use_${1#--enable-}" || usage 1
;;
--disable-*)
eval "use_${1#--disable-}=no"
isknown "use_${1#--disable-}" || usage 1
;;
--with-*)
eval "build_${1#--with-}=yes"
isknown "build_${1#--with-}" || usage 1
;;
--without-*)
eval "build_${1#--without-}=no"
isknown "build_${1#--without-}" || usage 1
;;
CFLAGS=*)
CFLAGS="${1#CFLAGS=}"
;;
LDFLAGS=*)
LDFLAGS="${1#LDFLAGS=}"
;;
--help)
usage 0
;;
*)
echo "unknown option '$1'"
echo
usage 1
;;
esac
}
##### end of subroutines
## enable logging of errors
ERRORLOG=config.err
exec 2> $ERRORLOG
## find a path for tmp directory
TMPPATH="/tmp"
if [ "$TMPDIR" ]; then
TMPPATH="$TMPDIR"
fi
if [ ! -d "$TMPPATH" ]; then
TMPPATH="."
fi
## generate tmp directory
BASENAME="$(basename "$0")"
if command -v mktemp >/dev/null; then
TEMPDIR="$(mktemp -d "$TMPPATH/$BASENAME.XXXXXXXXXX")"
RESULT=$?
else
TEMPDIR="$TMPPATH/$BASENAME.$$"
mkdir "$TEMPDIR"
RESULT=$?
fi
if [ $RESULT -ne 0 ]; then
echo "can't create temporary directory at <$TMPPATH>!"
exit 1;
fi
usage()
{
cat<<EOF
Usage: $0 [OPTION]...
Configuration:
--help display this help and exit
Installation directories:
--prefix=PREFIX install architecture-independent files in PREFIX
[/usr/local]
--exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
[PREFIX]
--bindir=BINDIR install binaries in BINDIR
[EPREFIX/bin]
--libdir=BINDIR install binaries in LIBDIR
[EPREFIX/lib]
--mandir=MANDIR install manpages in MANDIR
[PREFIX/man]
--docdir=DOCDIR install documentation in DOCDIR
[PREFIX/share/doc/$package]
--sysconfdir=SCONFDIR look for system-wide configuration file in SCONFDIR
[/etc]
Optional Features:
--disable-i18n omit libintl support
--disable-hardening disable hardening flags
--disable-zlib disable transparent gzip decompression
--enable-debug build with debug code
--enable-sharedlibgbs build libgbs as a shared library
--enable-verbosebuild give verbose output during build
Optional Modules:
--with-xgbsplay build graphical frontend xgbsplay
--without-contrib don't install contrib scripts
--without-test don't test gbsplay output during build
Output Plugins:
--disable-alsa omit ALSA sound output plugin
--disable-devdsp omit /dev/dsp sound output plugin
--disable-dsound omit Direct Sound output plugin
--disable-iodumper omit iodumper plugin
--disable-midi omit MIDI file writer plugin
--disable-altmidi omit alternative MIDI file writer plugin
--disable-nas omit NAS sound output plugin
--disable-pipewire omit PipeWire sound output plugin
--disable-pulse omit PulseAudio sound output plugin
--disable-sdl omit SDL sound output plugin
--disable-stdout omit stdout file writer plugin
--disable-vgm omit VGM file writer plugin
--disable-wav omit WAV file writer plugin
EOF
exit "$1"
}
OPTS=""
OPTS="${OPTS} build_contrib"
OPTS="${OPTS} build_test"
OPTS="${OPTS} build_xgbsplay"
OPTS="${OPTS} use_alsa"
OPTS="${OPTS} use_debug"
OPTS="${OPTS} use_devdsp"
OPTS="${OPTS} use_dsound"
OPTS="${OPTS} use_hardening"
OPTS="${OPTS} use_i18n"
OPTS="${OPTS} use_iodumper"
OPTS="${OPTS} use_midi"
OPTS="${OPTS} use_altmidi"
OPTS="${OPTS} use_nas"
OPTS="${OPTS} use_pipewire"
OPTS="${OPTS} use_pulse"
OPTS="${OPTS} use_sdl"
OPTS="${OPTS} use_sharedlibgbs"
OPTS="${OPTS} use_stdout"
OPTS="${OPTS} use_vgm"
OPTS="${OPTS} use_wav"
OPTS="${OPTS} use_verbosebuild"
OPTS="${OPTS} use_zlib"
for OPT in $OPTS; do
eval "${OPT}="
done
## load user config
if [ -f config.conf ]; then
printf "loading config.conf... "
while read -r line; do
parseoption "$line"
done < config.conf
echo ok
fi
## flags from CONFIGURE_FLAGS env (for travis-ci)
for flag in ${CONFIGURE_FLAGS}; do
parseoption "$flag"
done
## commandline flags
while [ "${1-}" ]; do
parseoption "$1"
shift
done
case "$BUILDOS" in
Linux)
if { [ "$BUILDARCH" = "i386" ] \
|| [ "$BUILDARCH" = "i486" ] \
|| [ "$BUILDARCH" = "i586" ] \
|| [ "$BUILDARCH" = "i686" ] \
|| [ "$BUILDARCH" = "x86_64" ]; \
}; then
setdefault build_test yes
else
# expected test failures:
# MD5 sum mismatch due to floating point discrepancies in libimpulse
setdefault build_test no
fi
;;
Darwin)
setdefault build_test yes
append_nodupe CFLAGS "-D_DARWIN_C_SOURCE=1"
;;
MSYS_*)
setdefault build_test yes
;;
MINGW32_*|MINGW64_*)
# known test failure:
# - util.c does not test-compile properly
# - srand(0) in test_shuffle() in util.c gives a different order
setdefault build_test no
;;
*)
setdefault build_test no
;;
esac
## more defaults
setdefault build_xgbsplay no
setdefault build_contrib yes
## disable test when cross-compiling
if [ -n "$buildalias" ] && [ "$buildalias" != "$hostalias" ]; then
build_test=no
fi
# determine version that is built
if [ -f .git/HEAD ]; then
# from git if the build happens in a repository
VERSION=$(git describe --tags)
elif [ "$VERSION" = unknown ]; then
# get a rough version number based on HISTORY file
VERSION="$(
grep -E '^[0-9]{4}/[0-9]{2}/[0-9]{2} - [0-9]+.[0-9]+.[0-9]+' HISTORY \
| sed -n '1{s/^.* - //;s/ .*//;p}'
)ish"
fi
echo "configure gbsplay $VERSION"
## check for C compiler
printf "checking for working compiler: "
INFILE="$TEMPDIR/cc.c"
OUTFILE="$TEMPDIR/cc"
cat > "$INFILE" <<EOF
int main(int argc, char **argv) {
return 0;
}
EOF
$BUILDCC -o "$OUTFILE" "$INFILE" $CFLAGS $LDFLAGS
RESULT=$?
if [ $RESULT -eq 0 ]; then
if [ "$buildalias" ] && [ "$buildalias" != "$hostalias" ]; then
echo "cross-compiling, skipping execute check"
else
if [ -s "$OUTFILE" ]; then
if "$OUTFILE"; then
echo "ok"
else
die "can't execute generated code"
fi
else
die "no code generated"
fi
fi
else
die "error executing '$BUILDCC'"
fi
## check for windows environment
# see http://msys2.org/wiki/Porting/
cc_check "checking if target is windows" windows_build "" yes no <<EOF
int main(int argc, char **argv)
{
#if defined(_WIN32) || defined(_WIN64) || defined(__CYGWIN__)
return 0;
#else
not windows, fail compile
#endif
}
EOF
if [ "$windows_build" = yes ]; then
# stack-protector has some bugs on Windows
setdefault use_hardening no
# don't look for audio libs that are unavailable on Windows
setdefault use_alsa no
setdefault use_nas no
setdefault use_pipewire no
setdefault use_pulse no
if cc_check "" "" "" <<EOF; then
int main(int argc, char **argv)
{
#if defined(__MSYS__)
return 0;
#else
not msys, fail compile
#endif
}
EOF
windows_libprefix=msys2
elif cc_check "" "" "" <<EOF; then
int main(int argc, char **argv)
{
#if defined(__CYGWIN__)
return 0;
#else
not cygwin, fail compile
#endif
}
EOF
windows_libprefix=cyg
else
# mingw
windows_libprefix=lib
fi
else
# not windows
setdefault use_hardening yes
fi
## check for various headers
need_include inttypes.h
if [ "$use_zlib" != no ]; then
remember_use zlib
check_include zlib.h
retval1=$?
retval2=1
if [ $retval1 -eq 0 ]; then
check_libs "z" <<EOF
#include <zlib.h>
int main(int argc, char** argv) {
z_stream strm = {0};
inflateInit(&strm);
return 0;
}
EOF
retval2=$?
fi
use_zlib=no
if [ "$retval1" -eq 0 ] && [ "$retval2" -eq 0 ]; then
use_zlib="$have_zlib_h"
append_nodupe LDFLAGS "-lz"
fi
recheck_use zlib
fi
if [ "$use_devdsp" != no ]; then
remember_use devdsp
check_include sys/soundcard.h
use_devdsp="$have_sys_soundcard_h"
# this check is needed for FreeBSD but it only works when the C11 flags are used
C11_FLAGS="-D_XOPEN_SOURCE=500 -D_POSIX_C_SOURCE=200809L"
if [ "$have_sys_soundcard_h" = yes ]; then
if ! cc_check "checking if we need additional flags for sys/soundcard.h" "" "$C11_FLAGS" "no" "yes" <<EOF; then
#include <sys/soundcard.h>
int main(int argc, char **argv)
{
#ifdef OPEN_SOUND_SYSTEM
return 0;
#else
return 1;
#endif
}
EOF
if cc_check "checking if we need __BSD_VISIBLE for sys/soundcard.h" "" "$C11_FLAGS -D__BSD_VISIBLE" "yes" "no" <<EOF; then
#include <sys/soundcard.h>
int main(int argc, char **argv)
{
#ifdef OPEN_SOUND_SYSTEM
return 0;
#else
return 1;
#endif
}
EOF
append_nodupe CFLAGS "-D__BSD_VISIBLE"
else
echo "no way found to make sys/soundcard.h work"
use_devdsp=no
fi
fi
fi
recheck_use devdsp
fi
if [ "$use_alsa" != no ]; then
remember_use alsa
check_include alsa/asoundlib.h
use_alsa="$have_alsa_asoundlib_h"
cc_check "checking for ESTRPIPE support" have_estrpipe <<EOF
#include <errno.h>
#include <alsa/asoundlib.h>
int main(int argc, char **argv)
{
if (ESTRPIPE == 0)
return 1; /* Never reached. */
return 0;
}
EOF
recheck_use alsa
fi
if [ "$use_dsound" != no ]; then
remember_use dsound
check_include dsound.h /usr/include/w32api "#include <windows.h>"
retval1=$?
retval2=1
if [ $retval1 -eq 0 ]; then
check_libs dsound <<EOF
#include <windows.h>
#include <dsound.h>
int main(int argc, char** argv) {
LPDIRECTSOUND8 lp;
HRESULT hr = DirectSoundCreate8(NULL, &lp, NULL);
if (SUCCEEDED(hr)) IDirectSound8_Release(lp);
return 0;
}
EOF
retval2=$?
fi
use_dsound=no
if [ "$retval1" -eq 0 ] && [ "$retval2" -eq 0 ]; then
use_dsound="$have_dsound_h"
fi
recheck_use dsound
fi
if [ "$use_pipewire" != no ]; then
remember_use pipewire
pipewire_version='libpipewire-0.3'
if command -v pkg-config >/dev/null && pkg-config ${pipewire_version}; then
pipewire_have_pkg_config=yes
else
pipewire_have_pkg_config=no
fi
if [ "$pipewire_have_pkg_config" = yes ]; then
pipewire_include_flags="$(pkg-config --cflags-only-I ${pipewire_version})"
pipewire_cflags="$(pkg-config --cflags-only-other ${pipewire_version})"
else
pipewire_include_flags='-I/usr/include/pipewire-0.3 -I/usr/include/spa-0.2'
pipewire_cflags=''
fi
pipewire_include_path="$(sed -e 's/^-I//' -e 's/ -I/ /g' <<<"${pipewire_include_flags}")"
check_include spa/support/plugin.h "$pipewire_include_path"
if [ "$have_spa_support_plugin_h" = yes ]; then
append_nodupe CFLAGS "-I${include_spa_support_plugin_h_path}"
check_include pipewire/pipewire.h "$pipewire_include_path"
if [ "$have_pipewire_pipewire_h" = yes ]; then
append_nodupe CFLAGS "-I${include_pipewire_pipewire_h_path} ${pipewire_cflags}"
if [ "$pipewire_have_pkg_config" = yes ]; then
pipewire_ldpath_flags="$(pkg-config --libs-only-L ${pipewire_version})"
pipewire_libname_flags="$(pkg-config --libs-only-l ${pipewire_version})"
pipewire_ldflags="$(pkg-config --libs-only-other ${pipewire_version})"
else
pipewire_ldpath_flags=''
pipewire_libname_flags='-lpipewire-0.3'
pipewire_ldflags=''
fi
pipewire_ldpath="$(sed -e 's/^-L//' -e 's/ -L/ /g' <<<"${pipewire_ldpath_flags}")"
pipewire_libname="${pipewire_libname_flags#*-l}"
check_libs "${pipewire_libname}" "" "${pipewire_ldpath}" "" "${pipewire_ldflags}" <<EOF
#include <pipewire/pipewire.h>
int main(int argc, char **argv) {
pw_init(0, NULL);
pw_deinit();
return 0;
}
EOF
if [ "$?" -eq 0 ]; then
use_pipewire=yes
fi
fi
fi
recheck_use pipewire
fi
if [ "$use_pulse" != no ]; then
remember_use pulse
check_include pulse/simple.h
use_pulse="$have_pulse_simple_h"
recheck_use pulse
fi
if [ "$use_nas" != no ]; then
remember_use nas
check_include audio/audiolib.h "/usr/X11R6/include"
retval1=$?
retval2=1
if [ $retval1 -eq 0 ]; then
check_libs audio "X11 Xt m" "/usr/X11R6/lib /usr/X11/lib /usr/lib/X11" <<EOF
int main(int argc, char **argv) { return 0; }
EOF
retval2=$?
fi
use_nas=no
if [ "$retval1" -eq 0 ] && [ "$retval2" -eq 0 ]; then
if [ "$include_audio_audiolib_h_path" != " " ]; then
append_nodupe CFLAGS "-I$include_audio_audiolib_h_path"
fi
use_nas=yes
fi
recheck_use nas
fi
if [ "$use_sdl" != no ]; then
remember_use sdl
if command -v sdl2-config >/dev/null; then
sdl2_include_path="$(sdl2-config --cflags)"
sdl2_include_path="${sdl2_include_path#*-I}"
sdl2_include_path="${sdl2_include_path%% -*}"
else
sdl2_include_path='/usr/include/SDL2 /usr/local/include/SDL2 /opt/local/include/SDL2 /opt/homebrew/include/SDL2'
fi
check_include SDL.h "$sdl2_include_path" "#define SDL_MAIN_HANDLED"
if [ "$have_SDL_h" = yes ]; then
if [ "$include_SDL_h_path" != ' ' ]; then
append_nodupe CFLAGS "-I$include_SDL_h_path"
fi
if command -v sdl2-config >/dev/null; then
sdl2_lib_path="$(sdl2-config --libs)"
sdl2_lib_path="${sdl2_lib_path#*-L}"
sdl2_lib_path="${sdl2_lib_path%% -*}"
else
sdl2_lib_path="/usr/lib /usr/local/lib /opt/local/lib /opt/homebrew/lib"
fi
check_libs SDL2 "" "$sdl2_lib_path" <<EOF
#define SDL_MAIN_HANDLED
#include <SDL.h>
int main(int argc, char **argv) {
SDL_Init(0);
return 0;
}
EOF
if [ "$?" -eq 0 ]; then
use_sdl=yes
fi
fi
recheck_use sdl
fi
# plugout_stdout produces garbage if stdout writes in text mode and converts LF to CRLF
if [ "$use_stdout" != no ]; then
remember_use stdout
printf "checking if stdout converts line endings: "
cc_check "" "" <<EOF
#include <stdio.h>
int main(int argc, char **argv) {
fputs("\n", stdout);
return 0;
}
EOF
bytes_written="$("$TEMPDIR/cc" | wc -c)"
if [ "$bytes_written" -eq 1 ]; then
echo "no"
else
echo "yes"
# LF/CRLF conversion should only happen on Windows and setmode() should be available to fix it
if cc_check "checking for setmode() in fcntl.h" have_setmode <<EOF; then
#include <fcntl.h>
#include <unistd.h>
int main(int argc, char **argv) {