[newlib-cygwin/main] Make SIG2STR_MAX usable in #if

[newlib-cygwin/main] Make SIG2STR_MAX usable in #if

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=6b2ae32ecdfdb8ca1337e19fac3b6e0a4079e769

commit 6b2ae32ecdfdb8ca1337e19fac3b6e0a4079e769
Author:     Mingye Wang <arthur200126@gmail.com>
AuthorDate: Wed Jun 21 20:11:57 2023 +0800
Commit:     Corinna Vinschen <corinna@vinschen.de>
CommitDate: Wed Jun 21 15:15:03 2023 +0200

    Make SIG2STR_MAX usable in #if
    
    The text accepted for POSIX issue 8 requires that SIG2STR_MAX be usable
    in #if, which we currently break with sizeof. Use static values instead.

Diff:
---
 newlib/libc/include/sys/signal.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/newlib/libc/include/sys/signal.h b/newlib/libc/include/sys/signal.h
index 8dc5fb9c34fc..96bf9781ae93 100644
--- a/newlib/libc/include/sys/signal.h
+++ b/newlib/libc/include/sys/signal.h
@@ -245,9 +245,9 @@ int sigqueue (pid_t, int, const union sigval);
 /* POSIX Issue 8 adds sig2str() and str2sig() */
 
 #if __SIZEOF_INT__ >= 4
-#define SIG2STR_MAX (sizeof("RTMAX+") + sizeof("4294967295") - 1)
+#define SIG2STR_MAX 17	/* (sizeof("RTMAX+") + sizeof("4294967295") - 1) */
 #else
-#define SIG2STR_MAX (sizeof("RTMAX+") + sizeof("65535") - 1)
+#define SIG2STR_MAX 12	/* (sizeof("RTMAX+") + sizeof("65535") - 1) */
 #endif
 
 int sig2str(int, char *);