On 15/11/2019 18:15, Segher Boessenkool wrote:
> On Fri, Nov 15, 2019 at 06:03:25PM +0000, Szabolcs Nagy wrote:
>> i'm fine with that, it means the --with-long-double-128
>> switch does not work on *-musl,
>
> I thought that is what you wanted to do. If you just want to change the
> default, do that *before* this block, not *in* it?
ok, i'll just hard code the abi:
On powerpc and s390x the musl ABI requires 64 bit and 128 bit long
double respectively, so set the long double abi accordingly instead
of requiring correct use of --with-long-double-128.
gcc/ChangeLog:
2019-11-15 Szabolcs Nagy <szabolcs.n...@arm.com>
* configure.ac (gcc_cv_target_ldbl128): Set for *-musl* targets.
* configure: Regenerate.
diff --git a/gcc/configure b/gcc/configure
index 6808c23d26b..70ac7cf53f8 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -29711,6 +29711,12 @@ $as_echo "$have_sys_sdt_h" >&6; }
# Some glibc targets used DFmode long double, but with glibc 2.4
# and later they can use TFmode.
case "$target" in
+ powerpc*-*-linux-musl*)
+ gcc_cv_target_ldbl128=no
+ ;;
+ s390*-*-linux-musl*)
+ gcc_cv_target_ldbl128=yes
+ ;;
powerpc*-*-linux* | \
sparc*-*-linux* | \
s390*-*-linux* | \
diff --git a/gcc/configure.ac b/gcc/configure.ac
index 1a0d68208e4..d8561bf4cd9 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -6154,6 +6154,12 @@ AC_MSG_RESULT($have_sys_sdt_h)
# Some glibc targets used DFmode long double, but with glibc 2.4
# and later they can use TFmode.
case "$target" in
+ powerpc*-*-linux-musl*)
+ gcc_cv_target_ldbl128=no
+ ;;
+ s390*-*-linux-musl*)
+ gcc_cv_target_ldbl128=yes
+ ;;
powerpc*-*-linux* | \
sparc*-*-linux* | \
s390*-*-linux* | \
