diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/configure b/configure index e131070718..194c4ed984 100755 --- a/configure +++ b/configure @@ -618,6 +618,7 @@ ldd_rewrite_script use_ldconfig libc_cv_sparc_as_vis3 libc_cv_as_i686 +libc_cv_cc_nofma libc_cv_cc_fma4 libc_cv_cc_novzeroupper libc_cv_cc_sse2avx @@ -7035,6 +7036,26 @@ if test "$libc_cv_gcc_tls_model_attr" = no; then as_fn_error $? "support for the tls_model attribute is required" "$LINENO" 5 fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for compiler option to disable generation of FMA instructions" >&5 +$as_echo_n "checking for compiler option to disable generation of FMA instructions... " >&6; } +if ${libc_cv_cc_nofma+:} false; then : + $as_echo_n "(cached) " >&6 +else + libc_cv_cc_nofma= +for opt in -ffp-contract=off -mno-fused-madd; do + if { ac_try='${CC-cc} $opt -xc /dev/null -S -o /dev/null' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then : + libc_cv_cc_nofma=$opt; break +fi +done +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_nofma" >&5 +$as_echo "$libc_cv_cc_nofma" >&6; } + if test -n "$submachine"; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking for compiler option for CPU variant" >&5 $as_echo_n "checking for compiler option for CPU variant... " >&6; } @@ -7657,6 +7678,7 @@ fi + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -fPIC is default" >&5 $as_echo_n "checking whether -fPIC is default... " >&6; } if ${libc_cv_pic_default+:} false; then : |