From 1a62d7e5c396aa755f10d283dc3a6bc0eb496be4 Mon Sep 17 00:00:00 2001 From: Szabolcs Nagy Date: Thu, 4 May 2023 09:48:03 +0100 Subject: [PATCH] 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 | ^~~~~~~~~~ compilation terminated. configure: error: mathvec is enabled but compiler does not have SVE ACLE. [...] --- sysdeps/aarch64/configure | 2 +- sysdeps/aarch64/configure.ac | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/sysdeps/aarch64/configure b/sysdeps/aarch64/configure index 22ed9d38d2..d0d78d69f1 100644 --- a/sysdeps/aarch64/configure +++ b/sysdeps/aarch64/configure @@ -342,7 +342,7 @@ else cat > conftest.c < 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 ba519c9053..259edc3de8 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 - 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