diff options
Diffstat (limited to 'libstdc++-v3/configure.host')
| -rw-r--r-- | libstdc++-v3/configure.host | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/libstdc++-v3/configure.host b/libstdc++-v3/configure.host new file mode 100644 index 0000000..cd431ff --- /dev/null +++ b/libstdc++-v3/configure.host @@ -0,0 +1,196 @@ +# configure.host +# +# This shell script handles all host based configuration for libstdc++. +# It sets various shell variables based on the the host 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: +# host The configuration host (full CPU-vendor-OS triplet) +# host_cpu The configuration host CPU +# host_os The configuration host OS +# +# +# It sets the following shell variables: +# +# cpu_include_dir CPU-specific directory, defaults to cpu/generic +# if cpu/host_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_triplet directory name for ABI compat testing, +# defaults to host (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 hosts 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. :-) +abi_baseline_triplet=${host} +c_model=c_std +c_compatibility=no +if test -d ${glibcpp_srcdir}/config/cpu/${host_cpu}; then + cpu_include_dir="cpu/${host_cpu}" +else + cpu_include_dir="cpu/generic" +fi + + +# HOST-SPECIFIC OVERRIDES +# Set any CPU-dependent bits. +# Here we override defaults and catch more general cases due to naming +# conventions (e.g., chip_name* to catch all variants). +# THIS TABLE IS SORTED. KEEP IT THAT WAY. +case "${host_cpu}" in + alpha*) + cpu_include_dir="cpu/alpha" + ;; + athlon* | i586 | i686 | i786 | x86_64) + cpu_include_dir="cpu/i486" + ;; + hppa*) + cpu_include_dir="cpu/hppa" + ;; + mips*) + # cpu/mips/atomicity.h needs MIPS II or above. Only use it + # where it is known to be safe. + ATOMICITYH="cpu/generic" + ;; + m680[246]0) + cpu_include_dir="cpu/m68k" + ;; + powerpc* | rs6000) + cpu_include_dir="cpu/powerpc" + ;; + s390x) + cpu_include_dir="cpu/s390" + ;; + sparc* | ultrasparc) + cpu_include_dir="cpu/sparc" + ;; +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_incdir_fullpath=${glibcpp_srcdir}/config/${cpu_include_dir} +if test x${ATOMICITYH+set} != xset; then + if test -f ${_cpu_incdir_fullpath}/atomicity.h; then + ATOMICITYH=$cpu_include_dir + else + ATOMICITYH="cpu/generic" + fi +fi +unset _cpu_incdir_fullpath + + +# 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 "${host_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" + # The FreeBSD ABI is expressed in the major version number only. + abi_baseline_triplet=`echo ${host} | sed 's,\(\.[0-9]*\)*$,,'` + ;; + gnu* | linux*) + os_include_dir="os/gnu-linux" + ;; + hpux*) + os_include_dir="os/hpux" + ;; + irix[1-6] | irix[1-5].* | irix6.[0-4]*) + # This is known to work on at least IRIX 5.2 and 6.3. + os_include_dir="os/irix/irix5.2" + ATOMICITYH=$os_include_dir + ;; + irix6.5*) + os_include_dir="os/irix/irix6.5" + ATOMICITYH=$os_include_dir + ;; + mingw32*) + os_include_dir="os/mingw32" + ;; + netbsd*) + os_include_dir="os/bsd/netbsd" + ;; + solaris2.5*) + os_include_dir="os/solaris/solaris2.5" + ;; + solaris2.6*) + os_include_dir="os/solaris/solaris2.6" + ;; + solaris2.[789]*) + os_include_dir="os/solaris/solaris2.7" + ;; + windiss*) + os_include_dir="os/windiss" + ;; + qnx6.[12]*) + os_include_dir="os/qnx/qnx6.1" + c_model=c + ;; + *) + os_include_dir="os/generic" + ;; +esac + + +# Set any OS-dependent and CPU-dependent bits. +# THIS TABLE IS SORTED. KEEP IT THAT WAY. +case "${host}" in + mips*-*-linux*) + ATOMICITYH="cpu/mips" + ;; +esac |