diff options
Diffstat (limited to 'sysdeps/s390/configure')
| -rw-r--r-- | sysdeps/s390/configure | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/sysdeps/s390/configure b/sysdeps/s390/configure index c9fb69c..347ac28 100644 --- a/sysdeps/s390/configure +++ b/sysdeps/s390/configure @@ -177,5 +177,41 @@ then fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 z196 zarch instruction support as default" >&5 +$as_echo_n "checking for S390 z196 zarch instruction support as default... " >&6; } +if ${libc_cv_asm_s390_min_z196_zarch+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat > conftest.c <<\EOF +float testinsn (double e) +{ + float d; + __asm__ ("ledbra %0,5,%1,4" : "=f" (d) : "f" (e) ); + return d; +} +EOF +if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c + -o conftest.o &> /dev/null' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; } ; +then + libc_cv_asm_s390_min_z196_zarch=yes +else + libc_cv_asm_s390_min_z196_zarch=no +fi +rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_z196_zarch" >&5 +$as_echo "$libc_cv_asm_s390_min_z196_zarch" >&6; } + +if test "$libc_cv_asm_s390_min_z196_zarch" = yes ; +then + $as_echo "#define HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT 1" >>confdefs.h + +fi + test -n "$critic_missing" && as_fn_error $? " *** $critic_missing" "$LINENO" 5 |