glibc/sysdeps/unix/sysv/linux/mips/configure.in

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sinclude(./aclocal.m4)dnl Autoconf lossage
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/unix/sysv/linux/mips.
case $machine in
mips*64*)
rm -f asm-unistd.h
asm_unistd_h=$sysheaders/asm/unistd.h
if test ! -f $asm_unistd_h; then
# Try to find asm/unistd.h in compiler header search path.
try_asm_unistd_h=`echo '#include <asm/unistd.h>' | $CPP - |
sed -n '/^# 1 "\(\/[^"]*\)".*/{s,,\1,p;q;}'`
if test -n "$try_asm_unistd_h" &&
test -f "$try_asm_unistd_h"; then
asm_unistd_h=$try_asm_unistd_h
fi
fi
if test ! -f "$asm_unistd_h"; then
AC_MSG_WARN([*** asm/unistd.h not found, it will not be pre-processed])
echo '#include <asm/unistd.h>' > asm-unistd.h
else
# The point of this preprocessing is to turn __NR_<syscall> into
# __NR_N64_<syscall>, as well as to define __NR_<syscall> to
# __NR_<abi>_<syscall>, if __NR_<abi>_<syscall> is defined
# and <abi> is the compiler-enabled ABI.
cat "$asm_unistd_h" |
sed -e 's,__NR_,__NR_N64_,g' \
-e 's,__NR_N64_##,__NR_##,g' \
-e 's,__NR_N64_O32_,__NR_O32_,g' \
-e 's,__NR_N64_N32_,__NR_N32_,g' \
-e 's,__NR_N64_N64_,__NR_N64_,g' \
| awk > asm-unistd.h '
BEGIN { print "#include <sgidefs.h>"; }
/^#define __NR.*unused/ { print; next; }
/^#define __NR_N64__exit __NR_N64_exit/ {
print "#define __NR__exit __NR_exit";
print "#define __NR_O32__exit __NR_O32_exit";
print "#define __NR_N32__exit __NR_N32_exit";
print; next;
}
/^#define __NR_O32_/ {
name = $2;
sub (/_O32_/, "_", name);
print;
print "#if _MIPS_SIM == _MIPS_SIM_ABI32";
print "# define " name " " $2;
print "#endif";
next;
}
/^#define __NR_N32_/ {
name = $2;
sub (/_N32_/, "_", name);
print;
print "#if _MIPS_SIM == _MIPS_SIM_NABI32";
print "# define " name " " $2;
print "#endif";
next;
}
/^#define __NR_N64_/ {
name = $2;
sub (/_N64_/, "_", name);
print;
print "#if _MIPS_SIM == _MIPS_SIM_ABI64";
print "# define " name " " $2;
print "#endif";
next;
}
{
print;
}'
fi ;;
mips*)
rm -f asm-unistd.h
echo '#include <asm/unistd.h>' > asm-unistd.h
;;
esac