201 lines
5.3 KiB
SYSTEMD
201 lines
5.3 KiB
SYSTEMD
# configure.target
|
|
#
|
|
# This shell script handles all target based configuration for libstdc++.
|
|
# It sets various shell variables based on the the target and the
|
|
# configuration options. You can modify this shell script without needing
|
|
# to rerun autoconf/aclocal/etc. This file is "sourced" not executed.
|
|
#
|
|
# You should read docs/html/17_intro/porting.* to make sense of this file.
|
|
#
|
|
#
|
|
# It uses the following shell variables as set by config.guess:
|
|
# target The configuration target (full CPU-vendor-OS triplet)
|
|
# target_cpu The configuration target CPU
|
|
# target_os The configuration target OS
|
|
#
|
|
#
|
|
# It sets the following shell variables:
|
|
#
|
|
# cpu_include_dir CPU-specific directory, defaults to cpu/generic
|
|
# if cpu/target_cpu doesn't exist. This is
|
|
# used to set ATOMICITYH.
|
|
#
|
|
# os_include_dir OS-specific directory, defaults to os/generic.
|
|
#
|
|
# c_model the model to use for "C" headers, defaults to c_std.
|
|
#
|
|
# c_compatibility if "C" compatibility headers are necessary,
|
|
# defaults to no.
|
|
#
|
|
# abi_baseline_pair directory name for ABI compat testing,
|
|
# defaults to target (as per config.guess)
|
|
#
|
|
# ATOMICITYH location of atomicity.h,
|
|
# defaults to cpu_include_dir
|
|
#
|
|
# It possibly modifies the following variables:
|
|
#
|
|
# OPT_LDFLAGS extra flags to pass when linking the library, of
|
|
# the form '-Wl,blah'
|
|
# (defaults to empty in acinclude.m4)
|
|
#
|
|
#
|
|
# If the defaults will not work for your platform, you need only change the
|
|
# variables that won't work, i.e., you do not need to explicitly set a
|
|
# working variable to its default. Most targets only need to change the two
|
|
# *_include_dir variables.
|
|
|
|
|
|
# DEFAULTS
|
|
# Try to guess a default cpu_include_dir based on the name of the CPU. We
|
|
# cannot do this for os_include_dir; there are too many portable operating
|
|
# systems out there. :-)
|
|
c_model=c_std
|
|
c_compatibility=no
|
|
|
|
|
|
# TARGET-SPECIFIC OVERRIDES
|
|
# Set any CPU-dependent bits.
|
|
# Here we override defaults and catch more general cases due to naming
|
|
# conventions (e.g., chip_name* to catch all variants).
|
|
# THIS TABLE IS SORTED. KEEP IT THAT WAY.
|
|
|
|
case "${target_cpu}" in
|
|
alpha*)
|
|
try_cpu=alpha
|
|
;;
|
|
athlon* | i586 | i686 | i786 | x86_64)
|
|
try_cpu=i486
|
|
;;
|
|
hppa*)
|
|
try_cpu=hppa
|
|
;;
|
|
m680[246]0)
|
|
try_cpu=m68k
|
|
;;
|
|
powerpc* | rs6000)
|
|
try_cpu=powerpc
|
|
;;
|
|
s390x)
|
|
try_cpu=s390
|
|
;;
|
|
sparc* | ultrasparc)
|
|
try_cpu=sparc
|
|
;;
|
|
*)
|
|
if test -d ${glibcpp_srcdir}/config/cpu/${target_cpu}; then
|
|
try_cpu=${target_cpu}
|
|
else
|
|
try_cpu=generic
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
|
|
# Now look for the file(s) usually tied to a CPU model, and make
|
|
# default choices for those if they haven't been explicitly set
|
|
# already.
|
|
cpu_include_dir="cpu/${try_cpu}"
|
|
ATOMICITYH=$cpu_include_dir
|
|
abi_baseline_pair=${try_cpu}-${host_os}
|
|
|
|
# Set any OS-dependent bits.
|
|
# Set the os_include_dir.
|
|
# Set c_model, c_compatibility here.
|
|
# If atomic ops and/or numeric limits are OS-specific rather than
|
|
# CPU-specifc, set those here too.
|
|
# THIS TABLE IS SORTED. KEEP IT THAT WAY.
|
|
case "${target_os}" in
|
|
aix4.[3456789]* | aix[56789]*)
|
|
# We set os_include_dir to os/aix only on AIX 4.3 and newer, but
|
|
# os/aix/atomicity.h works on earlier versions of AIX 4.*, so we
|
|
# explicitly duplicate the directory for 4.[<3].
|
|
os_include_dir="os/aix"
|
|
ATOMICITYH="os/aix"
|
|
OPT_LDFLAGS="-Wl,-G"
|
|
;;
|
|
aix4.*)
|
|
ATOMICITYH="os/aix"
|
|
;;
|
|
aix*)
|
|
ATOMICITYH="cpu/generic"
|
|
;;
|
|
bsd*)
|
|
# Plain BSD attempts to share FreeBSD files.
|
|
os_include_dir="os/bsd/freebsd"
|
|
;;
|
|
cygwin*)
|
|
os_include_dir="os/newlib"
|
|
;;
|
|
*djgpp*) # leading * picks up "msdosdjgpp"
|
|
os_include_dir="os/djgpp"
|
|
;;
|
|
freebsd*)
|
|
os_include_dir="os/bsd/freebsd"
|
|
;;
|
|
gnu* | linux*)
|
|
os_include_dir="os/gnu-linux"
|
|
;;
|
|
hpux*)
|
|
os_include_dir="os/hpux"
|
|
;;
|
|
irix[1-6] | irix[1-5].* | irix6.[0-4]*)
|
|
# This is known to work on at least IRIX 5.2 and 6.3.
|
|
os_include_dir="os/irix/irix5.2"
|
|
ATOMICITYH=$os_include_dir
|
|
;;
|
|
irix6.5*)
|
|
os_include_dir="os/irix/irix6.5"
|
|
ATOMICITYH=$os_include_dir
|
|
;;
|
|
mingw32*)
|
|
os_include_dir="os/mingw32"
|
|
;;
|
|
netbsd*)
|
|
os_include_dir="os/bsd/netbsd"
|
|
;;
|
|
solaris2.5 | solaris2.5.[0-9])
|
|
os_include_dir="os/solaris/solaris2.5"
|
|
;;
|
|
solaris2.6)
|
|
os_include_dir="os/solaris/solaris2.6"
|
|
;;
|
|
solaris2.[789] | solaris2.1[0-9])
|
|
os_include_dir="os/solaris/solaris2.7"
|
|
;;
|
|
windiss*)
|
|
os_include_dir="os/windiss"
|
|
;;
|
|
qnx6.[12]*)
|
|
os_include_dir="os/qnx/qnx6.1"
|
|
c_model=c
|
|
;;
|
|
*)
|
|
os_include_dir="os/generic"
|
|
;;
|
|
esac
|
|
|
|
|
|
# Set any OS-dependent and CPU-dependent bits.
|
|
# THIS TABLE IS SORTED. KEEP IT THAT WAY.
|
|
case "${target}" in
|
|
mips*-*-linux*)
|
|
ATOMICITYH="cpu/mips"
|
|
;;
|
|
x86_64-*-linux*)
|
|
abi_baseline_pair="x86_64-linux-gnu"
|
|
;;
|
|
alpha*-*-freebsd5*)
|
|
abi_baseline_pair="alpha-freebsd5"
|
|
;;
|
|
i*86-*-freebsd4*)
|
|
abi_baseline_pair="i386-freebsd4"
|
|
;;
|
|
i*86-*-freebsd5*)
|
|
abi_baseline_pair="i386-freebsd5"
|
|
;;
|
|
sparc*-*-freebsd5*)
|
|
abi_baseline_pair="sparc-freebsd5"
|
|
;;
|
|
esac
|