diff options
Diffstat (limited to 'sysdeps/powerpc')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/le/configure | 27 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/le/configure.ac | 15 |
2 files changed, 42 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/le/configure b/sysdeps/powerpc/powerpc64/le/configure index bd7b8e7..98a4889 100644 --- a/sysdeps/powerpc/powerpc64/le/configure +++ b/sysdeps/powerpc/powerpc64/le/configure @@ -90,6 +90,33 @@ if test "$libc_cv_compiler_powerpc64le_ice" != "yes"; then : critic_missing="$critic_missing __builtin_signbit is broken. GCC 7.4 or newer is required to resolve (PR83862)." fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC compiles with -mabi=ieeelongdouble and -mlong-double-128" >&5 +$as_echo_n "checking if $CC compiles with -mabi=ieeelongdouble and -mlong-double-128... " >&6; } +if ${libc_cv_compiler_powerpc64le_ldbl128_mabi+:} false; then : + $as_echo_n "(cached) " >&6 +else + save_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -mabi=ieeelongdouble -mlong-double-128" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +long double x; + +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + libc_cv_compiler_powerpc64le_ldbl128_mabi=yes +else + libc_cv_compiler_powerpc64le_ldbl128_mabi=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +CFLAGS="$save_CFLAGS" +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_compiler_powerpc64le_ldbl128_mabi" >&5 +$as_echo "$libc_cv_compiler_powerpc64le_ldbl128_mabi" >&6; } +if test "$libc_cv_compiler_powerpc64le_ldbl128_mabi" == "no"; then : + critic_missing="$critic_missing The compiler must support -mabi=ieeelongdouble and -mlongdouble simultaneously." +fi + for ac_prog in $OBJCOPY do # Extract the first word of "$ac_prog", so it can be a program name with args. diff --git a/sysdeps/powerpc/powerpc64/le/configure.ac b/sysdeps/powerpc/powerpc64/le/configure.ac index 405933e..769c067 100644 --- a/sysdeps/powerpc/powerpc64/le/configure.ac +++ b/sysdeps/powerpc/powerpc64/le/configure.ac @@ -51,6 +51,21 @@ CFLAGS="$save_CFLAGS"]) AS_IF([test "$libc_cv_compiler_powerpc64le_ice" != "yes"], [critic_missing="$critic_missing __builtin_signbit is broken. GCC 7.4 or newer is required to resolve (PR83862)."]) +dnl Some old compiler versions give out error messages when combining +dnl -mabi=% and -mlong-double-128. i.e GCC 7.5.0 (PR94200) +AC_CACHE_CHECK([if $CC compiles with -mabi=ieeelongdouble and -mlong-double-128], + libc_cv_compiler_powerpc64le_ldbl128_mabi, [dnl +save_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -mabi=ieeelongdouble -mlong-double-128" +AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ +long double x; +]])], + [libc_cv_compiler_powerpc64le_ldbl128_mabi=yes], + [libc_cv_compiler_powerpc64le_ldbl128_mabi=no]) +CFLAGS="$save_CFLAGS"]) +AS_IF([test "$libc_cv_compiler_powerpc64le_ldbl128_mabi" == "no"], + [critic_missing="$critic_missing The compiler must support -mabi=ieeelongdouble and -mlongdouble simultaneously."]) + dnl objcopy (binutils) 2.26 or newer required to support the --update-section dnl feature for fixing up .gnu.attribute section with IEEE ldbl. AC_CHECK_PROG_VER(OBJCOPY, $OBJCOPY, --version, |