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glibc/sysdeps/aarch64/configure.ac
Wilco Dijkstra b990b0aee2 AArch64: Cleanup SVE config and defines
Now we finally support modern GCC and binutils, it's time for a cleanup.
Remove HAVE_AARCH64_SVE_ASM define and conditional compilation.  Remove SVE
configure checks for SVE, ACLE and variant-PCS support.

Reviewed-by: Yury Khrustalev <yury.khrustalev@arm.com>
2025-05-20 10:33:55 +00:00

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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/aarch64.
# Static PIE is supported.
AC_DEFINE(SUPPORT_STATIC_PIE)
# We check to see if the compiler and flags are
# selecting the big endian ABI and if they are then
# we set libc_cv_aarch64_be to yes which causes
# HAVE_AARCH64_BE to be defined in config.h and
# in include/libc-symbols.h and thus available to
# shlib-versions to select the appropriate name for
# the dynamic linker via %ifdef.
AC_CACHE_CHECK([for big endian],
[libc_cv_aarch64_be],
[AC_EGREP_CPP(yes,[#ifdef __AARCH64EB__
yes
#endif
], libc_cv_aarch64_be=yes, libc_cv_aarch64_be=no)])
if test $libc_cv_aarch64_be = yes; then
AC_DEFINE(HAVE_AARCH64_BE)
LIBC_CONFIG_VAR([default-abi], [lp64_be])
else
LIBC_CONFIG_VAR([default-abi], [lp64])
fi
if test x"$build_mathvec" = xnotset; then
build_mathvec=yes
fi
if test $build_mathvec = no; then
AC_MSG_WARN([mathvec is disabled, this results in incomplete ABI.])
fi