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configure: remove overly restrictive check for clang 

The clang support is still experimental and not all testcase build
or run correctly.  Only clang 18 and onwards is supported and only
for x86_64-linux-gnu and aarch64-linux-gnu.

Reviewed-by: Collin Funk <collin.funk1@gmail.com>
This commit is contained in:
Adhemerval Zanella 2025-10-28 14:08:36 -03:00
parent 413d399156
commit 28fc61a743
3 changed files with 7 additions and 2 deletions
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5
NEWS
View File

@ -29,6 +29,11 @@ Major new features:
* The ISO C23 functions free_sized and free_aligned_sized are now
supported in <stdlib.h>.
* Experimental support for building with clang has been added. It requires
at least clang version 18, aarch64-linux-gnu or x86_64-linux-gnu
targets, and libgcc compatible runtime (including libgcc_s.so for
pthread cancellation and backtrace runtime support).
Deprecated and removed features, and other changes affecting compatibility:
* Support for dumped heaps has been removed - malloc_set_state() now always

2
configure vendored
View File

@ -5799,7 +5799,7 @@ int
main (void)
{
#if !defined __GNUC__ || __GNUC__ < 12 || (__GNUC__ == 12 && __GNUC_MINOR__ < 1)
#if (!defined __GNUC__ || __GNUC__ < 12 || (__GNUC__ == 12 && __GNUC_MINOR__ < 1)) && (!defined __clang__ || __clang_major__ < 18)
#error insufficient compiler
#endif
;

2
configure.ac
View File

@ -585,7 +585,7 @@ AC_CHECK_PROG_VER(BISON, bison, --version,
# Require GCC 12.1 to build.
AC_CACHE_CHECK([if $CC is sufficient to build libc], libc_cv_compiler_ok, [
AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[]], [[
#if !defined __GNUC__ || __GNUC__ < 12 || (__GNUC__ == 12 && __GNUC_MINOR__ < 1)
#if (!defined __GNUC__ || __GNUC__ < 12 || (__GNUC__ == 12 && __GNUC_MINOR__ < 1)) && (!defined __clang__ || __clang_major__ < 18)
#error insufficient compiler
#endif]])],
[libc_cv_compiler_ok=yes],