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# $NetBSD: Linux.mk,v 1.89 2022/05/01 08:03:41 nia Exp $
#
# Variable definitions for the Linux operating system.
ECHO_N?= ${ECHO} -n
.if defined(X11_TYPE) && ${X11_TYPE} == "native"
IMAKE_MAKE?= ${GMAKE} # program which gets invoked by imake
IMAKE_TOOLS= gmake # extra tools required when we use imake
.endif
IMAKEOPTS+= -DBuildHtmlManPages=NO
PKGLOCALEDIR?= share
TYPE?= type # Shell builtin
.if exists(/etc/NIXOS)
PS?= /run/current-system/sw/bin/ps
SU?= /run/current-system/sw/bin/su
USERADD?= /run/current-system/sw/bin/useradd
GROUPADD?= /run/current-system/sw/bin/groupadd
NOLOGIN?= /run/current-system/sw/bin/nologin
.endif
PS?= /bin/ps
.if exists(/usr/bin/su)
SU?= /usr/bin/su
.else
SU?= /bin/su
.endif
.if exists(/sbin/nologin)
NOLOGIN?= /sbin/nologin
.else
NOLOGIN?= /bin/false
.endif
USERADD?= /usr/sbin/useradd
GROUPADD?= /usr/sbin/groupadd
CPP_PRECOMP_FLAGS?= # unset
DEF_UMASK?= 022
DEFAULT_SERIAL_DEVICE?= /dev/null
EXPORT_SYMBOLS_LDFLAGS?= # Don't add symbols to the dynamic symbol table
MOTIF_TYPE_DEFAULT?= motif # default 2.0 compatible libs type
PKG_TOOLS_BIN?= ${LOCALBASE}/sbin
ROOT_CMD?= ${SU} - root -c
.if exists(/etc/ssdlinux_version)
ROOT_GROUP?= wheel
.else
ROOT_GROUP?= root
.endif
ROOT_USER?= root
SERIAL_DEVICES?= /dev/null
ULIMIT_CMD_datasize?= ulimit -d `ulimit -H -d`
ULIMIT_CMD_stacksize?= ulimit -s `ulimit -H -s`
ULIMIT_CMD_memorysize?= ulimit -m `ulimit -H -m`
ULIMIT_CMD_cputime?= ulimit -t `ulimit -H -t`
_OPSYS_EMULDIR.linux= # empty
_OPSYS_EMULDIR.linux32= # empty
# Support Debian/Ubuntu's multiarch hierarchy.
.if exists(/etc/debian_version)
. if !empty(MACHINE_ARCH:Mx86_64)
_OPSYS_SYSTEM_RPATH= /lib${LIBABISUFFIX}:/usr/lib${LIBABISUFFIX}:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu
_OPSYS_LIB_DIRS?= /lib${LIBABISUFFIX} /usr/lib${LIBABISUFFIX} /lib/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu
. endif
. if !empty(MACHINE_ARCH:Mi386)
_OPSYS_SYSTEM_RPATH= /lib${LIBABISUFFIX}:/usr/lib${LIBABISUFFIX}:/lib/i386-linux-gnu:/usr/lib/i386-linux-gnu
_OPSYS_LIB_DIRS?= /lib${LIBABISUFFIX} /usr/lib${LIBABISUFFIX} /lib/i386-linux-gnu /usr/lib/i386-linux-gnu
. endif
. if !empty(MACHINE_ARCH:Marm*)
. if exists(/etc/ld.so.conf.d/arm-linux-gnueabihf.conf)
_OPSYS_SYSTEM_RPATH= /lib${LIBABISUFFIX}:/usr/lib${LIBABISUFFIX}:/lib/arm-linux-gnueabihf:/usr/lib/arm-linux-gnueabihf
_OPSYS_LIB_DIRS?= /lib${LIBABISUFFIX} /usr/lib${LIBABISUFFIX} /lib/arm-linux-gnueabihf /usr/lib/arm-linux-gnueabihf
. else
_OPSYS_SYSTEM_RPATH= /lib${LIBABISUFFIX}:/usr/lib${LIBABISUFFIX}:/lib/arm-linux-gnueabi:/usr/lib/arm-linux-gnueabi
_OPSYS_LIB_DIRS?= /lib${LIBABISUFFIX} /usr/lib${LIBABISUFFIX} /lib/arm-linux-gnueabi /usr/lib/arm-linux-gnueabi
. endif
. endif
. if !empty(MACHINE_ARCH:Maarch64)
LIBABISUFFIX?= /aarch64-linux-gnu
_OPSYS_SYSTEM_RPATH= /lib:/usr/lib:/lib${LIBABISUFFIX}:/usr/lib${LIBABISUFFIX}
_OPSYS_LIB_DIRS?= /lib /usr/lib /lib${LIBABISUFFIX} /usr/lib${LIBABISUFFIX}
. endif
. if !empty(MACHINE_ARCH:Mpowerpc64le)
LIBABISUFFIX?= /powerpc64le-linux-gnu
_OPSYS_SYSTEM_RPATH= /lib:/usr/lib:/lib${LIBABISUFFIX}:/usr/lib${LIBABISUFFIX}
_OPSYS_LIB_DIRS?= /lib /usr/lib /lib${LIBABISUFFIX} /usr/lib${LIBABISUFFIX}
. endif
.elif exists(/etc/arch-release)
_OPSYS_SYSTEM_RPATH= /lib:/usr/lib
_OPSYS_LIB_DIRS?= /lib /usr/lib
.elif exists(/etc/NIXOS)
# NixOS has no fixed locations for system libraries.
_OPSYS_INCLUDE_DIRS!= echo "" | cpp -v 2>&1 | grep '^[[:space:]]*/.*include$$' | tr '\n' ' '
_OPSYS_LIB_DIRS!= cc -print-search-dirs | awk '/^libraries:/ { $$1=""; $$2=substr($$2, 2); print $$0; }' | tr ':' '\n'
.else
_OPSYS_SYSTEM_RPATH= /lib${LIBABISUFFIX}:/usr/lib${LIBABISUFFIX}
_OPSYS_LIB_DIRS?= /lib${LIBABISUFFIX} /usr/lib${LIBABISUFFIX}
.endif
_OPSYS_INCLUDE_DIRS?= /usr/include
.if !empty(OS_VARIANT:Mchromeos)
_OPSYS_LIB_DIRS+= /usr/local/lib
_OPSYS_INCLUDE_DIRS+= /usr/local/include
.endif
# These are libc builtins
_OPSYS_PREFER.getopt?= native
_OPSYS_PREFER.gettext?= native
_OPSYS_PREFER.iconv?= native
_OPSYS_PREFER.libexecinfo?= native
_OPSYS_PREFER.libinotify?= native
_OPSYS_PREFER.sysexits?= native
# We probably want the native library for these
_OPSYS_PREFER.dl?= native
_OPSYS_PREFER.pthread?= native
_OPSYS_HAS_INET6= yes # IPv6 is standard
_OPSYS_HAS_JAVA= no # Java is not standard
_OPSYS_HAS_MANZ= no # no MANZ for gzipping of man pages
_OPSYS_HAS_OSSAUDIO= no # libossaudio is unavailable
_OPSYS_PERL_REQD= # no base version of perl required
_OPSYS_PTHREAD_AUTO= no # -lpthread needed for pthreads
_OPSYS_SHLIB_TYPE= ELF # shared lib type
_PATCH_CAN_BACKUP= yes # native patch(1) can make backups
_PATCH_BACKUP_ARG?= -b -V simple -z # switch to patch(1) for backup suffix
_USE_RPATH= yes # add rpath to LDFLAGS
_STRIPFLAG_CC?= ${_INSTALL_UNSTRIPPED:D:U-s} # cc(1) option to strip
_STRIPFLAG_INSTALL?= ${_INSTALL_UNSTRIPPED:D:U-s} # install(1) option to strip
_OPSYS_SUPPORTS_CWRAPPERS= yes
_OPSYS_CAN_CHECK_SHLIBS= yes # use readelf in check/bsd.check-vars.mk
_OPSYS_CAN_CHECK_SSP= no # only supports libssp at this time
# check for maximum command line length and set it in configure's environment,
# to avoid a test required by the libtool script that takes forever.
.if exists(/usr/bin/getconf)
_OPSYS_MAX_CMDLEN_CMD?= /usr/bin/getconf ARG_MAX
.endif
# Register support for FORTIFY (with GCC). Linux only supports FORTIFY
# when optimisation is enabled, otherwise warnings are issued.
.if !empty(CFLAGS:M-O*)
_OPSYS_SUPPORTS_FORTIFY=yes
.endif
# Register support for RELRO on supported architectures
.if (${MACHINE_ARCH} == "i386") || \
(${MACHINE_ARCH} == "x86_64")
_OPSYS_SUPPORTS_RELRO= yes
.endif
# Register support for SSP on x86 architectures
.if (${MACHINE_ARCH} == "i386") || \
(${MACHINE_ARCH} == "x86_64")
_OPSYS_SUPPORTS_SSP= yes
.endif
.if ${MACHINE_ARCH} == "x86_64"
ABI?= 64
LIBABISUFFIX?= 64
.endif
.if ${MACHINE_ARCH} == "powerpc64le"
ABI?= 64
LIBABISUFFIX?= 64
.endif
.if ${MACHINE_ARCH} == "aarch64"
# No toolchain multilib support yet?
# ABI?= 64
LIBABISUFFIX?= 64
.endif
# When building 32-bit packages on x86_64 GNU ld isn't smart enough to
# figure out the target architecture based on the objects so we need to
# explicitly set it.
.if ${HOST_MACHINE_ARCH} == "x86_64" && ${MACHINE_ARCH} == "i386"
_WRAP_EXTRA_ARGS.LD+= -m elf_i386
CWRAPPERS_APPEND.ld+= -m elf_i386
.endif
.for _glibc_path in ${_OPSYS_LIB_DIRS}
. if exists(${_glibc_path}/libc.so.6)
## Use _CMD so the command only gets run when needed!
_GLIBC_VERSION_CMD= if [ -x ${_glibc_path}/libc.so.6 ]; then \
${_glibc_path}/libc.so.6 --version | \
sed -ne's/^GNU C.*version \(.*\)[,.].*$$/\1/p'; \
else \
ldd --version | \
sed -ne's/^ldd.* \(.*\)$$/\1/p'; \
fi
. endif
.endfor
# In case we can't find glibc in any of the normal library paths
# (i.e. we're on NixOS), try ldconfig. Ironically, NixOS does not
# actually use ldconfig...
_GLIBC_VERSION_CMD?= ldconfig --version | \
sed -ne's/ldconfig (GNU libc) \(.*\)$$/\1/p'
GLIBC_VERSION= ${_GLIBC_VERSION_CMD:sh}
# If this is defined pass it to the make process.
.if defined(NOGCCERROR)
MAKE_ENV+= NOGCCERROR=true
.endif
OPSYS_HAS_EVENTFD= # defined
OPSYS_HAS_TIMERFD= # defined
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