diff options
Diffstat (limited to 'sysdeps/aarch64/configure.ac')
| -rw-r--r-- | sysdeps/aarch64/configure.ac | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sysdeps/aarch64/configure.ac b/sysdeps/aarch64/configure.ac index 7851dd4dac..eab411cad4 100644 --- a/sysdeps/aarch64/configure.ac +++ b/sysdeps/aarch64/configure.ac @@ -20,3 +20,27 @@ if test $libc_cv_aarch64_be = yes; then else LIBC_CONFIG_VAR([default-abi], [lp64]) fi + +AC_CACHE_CHECK([for pcs attribute support], + libc_cv_gcc_pcs_attribute, [dnl +cat > conftest.c <<EOF +__attribute__((aarch64_vector_pcs)) extern void foo (void); +EOF +libc_cv_gcc_pcs_attribute=no +if ${CC-cc} -c -Wall -Werror conftest.c -o conftest.o 1>&AS_MESSAGE_LOG_FD \ + 2>&AS_MESSAGE_LOG_FD ; then + libc_cv_gcc_pcs_attribute=yes +fi +rm -f conftest*]) + +# Enable libmvec by default. +if test x"$build_mathvec" = xnotset; then + build_mathvec=yes +fi + +# Only test libmvec if the compiler supports aarch64_vector_pcs. +if test x"$build_mathvec" = xyes; then + if test $libc_cv_gcc_pcs_attribute = yes; then + LIBC_CONFIG_VAR([test-mathvec], [yes]) + fi +fi |