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aarch64: fix SVE ACLE check for bootstrap glibc builds

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arm_sve.h depends on stdint.h but that relies on libc headers unless
compiled in freestanding mode.  Without this change a bootstrap glibc
build (that uses a compiler without installed libc headers) failed with

checking for availability of SVE ACLE... In file included from [...]/arm_sve.h:28,
                 from conftest.c:1:
[...]/stdint.h:9:16: fatal error: stdint.h: No such file or directory
    9 | # include_next <stdint.h>
      |                ^~~~~~~~~~
compilation terminated.
configure: error: mathvec is enabled but compiler does not have SVE ACLE. [...]
This commit is contained in:
Szabolcs Nagy 2023-05-04 09:48:03 +01:00
parent cd94326a13
commit 1a62d7e5c3
2 changed files with 2 additions and 2 deletions
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2
sysdeps/aarch64/configure vendored
View File

@ -342,7 +342,7 @@ else
cat > conftest.c <<EOF
#include <arm_sve.h>
EOF
if ! ${CC-cc} conftest.c -fsyntax-only; then
if ! ${CC-cc} conftest.c -fsyntax-only -ffreestanding; then
as_fn_error 1 "mathvec is enabled but compiler does not have SVE ACLE. Either use a compatible compiler or configure with --disable-mathvec (this results in incomplete ABI)."
fi
rm conftest.c

2
sysdeps/aarch64/configure.ac
View File

@ -112,7 +112,7 @@ AC_CACHE_CHECK(for availability of SVE ACLE, libc_cv_has_sve_acle, [dnl
cat > conftest.c <<EOF
#include <arm_sve.h>
EOF
if ! ${CC-cc} conftest.c -fsyntax-only; then
if ! ${CC-cc} conftest.c -fsyntax-only -ffreestanding; then
as_fn_error 1 "mathvec is enabled but compiler does not have SVE ACLE. Either use a compatible compiler or configure with --disable-mathvec (this results in incomplete ABI)."
fi
rm conftest.c