Running the test suite on Minix shows test failures. There, like on NetBSD,
the source code investigation was incomplete. This patch fixes the failures.
2023-07-17 Bruno Haible <br...@clisp.org>
mbszero: Fix for Minix.
* lib/wchar.in.h: (_GL_MBSTATE_INIT_SIZE): Don't define on Minix.
(_GL_MBSTATE_ZERO_SIZE): Define to 4 on Minix.
diff --git a/lib/wchar.in.h b/lib/wchar.in.h
index 430fa6fcec..510f202537 100644
--- a/lib/wchar.in.h
+++ b/lib/wchar.in.h
@@ -451,8 +451,9 @@ _GL_WARN_ON_USE (mbsinit, "mbsinit is unportable - "
lib/libc/citrus/citrus_*.c. */
/* File INIT_SIZE ZERO_SIZE
citrus_none.c 0 0 */
-# define _GL_MBSTATE_INIT_SIZE 1
-# define _GL_MBSTATE_ZERO_SIZE 1
+/* But 1 is not the correct value for _GL_MBSTATE_ZERO_SIZE: we get test
+ failures for values < 4. */
+# define _GL_MBSTATE_ZERO_SIZE 4
# elif defined __sun /* Solaris */
/* On Solaris, mbstate_t is defined in <wchar_impl.h>.
It is an opaque aligned 24-byte or 32-byte struct, of which at most the
first
