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authorSzabolcs Nagy <szabolcs.nagy@arm.com>2023-05-04 09:48:03 +0100
committerSzabolcs Nagy <szabolcs.nagy@arm.com>2023-05-04 10:19:11 +0100
commit1a62d7e5c396aa755f10d283dc3a6bc0eb496be4 (patch)
tree48a65dee613e452c09e9114030c36157c342f9f0 /sysdeps
parentcd94326a1326c4e3f1ee7a8d0a161cc0bdcaf07e (diff)
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aarch64: fix SVE ACLE check for bootstrap glibc builds
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. [...]
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/aarch64/configure2
-rw-r--r--sysdeps/aarch64/configure.ac2
2 files changed, 2 insertions, 2 deletions
diff --git a/sysdeps/aarch64/configure b/sysdeps/aarch64/configure
index 22ed9d3..d0d78d6 100644
--- a/sysdeps/aarch64/configure
+++ b/sysdeps/aarch64/configure
@@ -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
diff --git a/sysdeps/aarch64/configure.ac b/sysdeps/aarch64/configure.ac
index ba519c9..259edc3 100644
--- a/sysdeps/aarch64/configure.ac
+++ b/sysdeps/aarch64/configure.ac
@@ -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