# 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 atomicity_include_dir.
+# if cpu/host_cpu doesn't exist. This is not used
+# directly, but sets the default for others.
#
# os_include_dir OS-specific directory, defaults to os/generic.
#
# abi_baseline_pair directory name for ABI compat testing,
# defaults to host_cpu-host_os (as per config.guess)
#
+# abi_tweaks_dir location of cxxabi_tweaks.h,
+# defaults to cpu_include_dir
+#
# atomicity_dir location of atomicity.h,
# defaults to cpu_include_dir
#
alpha*)
try_cpu=alpha
;;
+ arm* | xscale | ep9312)
+ try_cpu=arm
+ ;;
i[567]86 | x86_64)
try_cpu=i486
;;
sparc* | ultrasparc)
try_cpu=sparc
;;
- arm* | xscale | ep9312)
- try_cpu=arm
- ;;
*)
if test -d ${glibcxx_srcdir}/config/cpu/${host_cpu}; then
try_cpu=${host_cpu}
# Now look for the file(s) usually tied to a CPU model, and make
# default choices for those if they haven't been explicitly set
# already.
-cpu_include_dir="cpu/${try_cpu}"
+cpu_include_dir=cpu/${try_cpu}
abi_baseline_pair=${try_cpu}-${host_os}
+unset try_cpu
if test -f ${glibcxx_srcdir}/config/${cpu_include_dir}/atomicity.h ; then
atomicity_dir=$cpu_include_dir
# explicitly duplicate the directory for 4.[<3].
os_include_dir="os/aix"
atomicity_dir="os/aix"
+ atomic_word_dir="os/aix"
OPT_LDFLAGS="-Wl,-G"
;;
aix4.*)
os_include_dir="os/generic"
atomicity_dir="os/aix"
+ atomic_word_dir="os/aix"
;;
aix*)
os_include_dir="os/generic"
cygwin*)
os_include_dir="os/newlib"
;;
+ darwin | darwin[1-7] | darwin[1-7].*)
+ # On Darwin, performance is improved if libstdc++ is single-module.
+ # Up to at least 10.3.7, -flat_namespace is required for proper
+ # treatment of coalesced symbols.
+ OPT_LDFLAGS="${OPT_LDFLAGS} -Wl,-single_module -Wl,-flat_namespace"
+ os_include_dir="os/bsd/darwin"
+ ;;
+ darwin[89] | darwin[89].* | darwin[1-9][0-9]* )
+ # On Darwin, performance is improved if libstdc++ is single-module,
+ # and on 8+ compatibility is better if not -flat_namespace.
+ OPT_LDFLAGS="${OPT_LDFLAGS} -Wl,-single_module"
+ os_include_dir="os/bsd/darwin"
+ ;;
*djgpp*) # leading * picks up "msdosdjgpp"
os_include_dir="os/djgpp"
;;
# This too-vague configuration does not provide enough information
# to select a ctype include, and thus os_include_dir is a crap shoot.
echo "Please specify the full version of Solaris, ie. solaris2.9 " 1>&2
- exit 1;
+ exit 1
;;
solaris2.5 | solaris2.5.[0-9])
os_include_dir="os/solaris/solaris2.5"
# Set any OS-dependent and CPU-dependent bits.
# THIS TABLE IS SORTED. KEEP IT THAT WAY.
case "${host}" in
- mips*-*-linux*)
- atomicity_dir="cpu/mips"
- ;;
- x86_64-*-linux*)
- abi_baseline_pair="x86_64-linux-gnu"
- ;;
alpha*-*-freebsd5*)
abi_baseline_pair="alpha-freebsd5"
;;
+ arm*-*-linux*)
+ abi_baseline_pair="arm-linux-gnu"
+ ;;
i*86-*-freebsd4*)
abi_baseline_pair="i386-freebsd4"
;;
i*86-*-freebsd5*)
abi_baseline_pair="i386-freebsd5"
;;
+ mips*-*-linux*)
+ atomicity_dir="cpu/mips"
+ abi_baseline_pair="mips-linux-gnu"
+ cpu_include_dir="cpu/mips"
+ ;;
+ powerpc64-*-linux*)
+ abi_baseline_pair="powerpc64-linux-gnu"
+ ;;
+ s390-*-linux*)
+ abi_baseline_pair="s390-linux-gnu"
+ ;;
+ s390x-*-linux*)
+ abi_baseline_pair="s390x-linux-gnu"
+ ;;
sparc*-*-freebsd5*)
abi_baseline_pair="sparc-freebsd5"
;;
+ x86_64-*-linux*)
+ abi_baseline_pair="x86_64-linux-gnu"
+ ;;
esac