References: bsc#1225953

Compiling against gcc14.
 ../../../../../newlib-1.16.0/newlib/libc/stdlib/wcstoull.c: In function ‘wcstoull’:
 ../../../../../newlib-1.16.0/newlib/libc/stdlib/wcstoull.c:136:16: error: implicit declaration of function ‘_wcstoull_r’; did you mean ‘wcstoull’? [-Wimplicit-function-declaration]
   136 |         return _wcstoull_r (_REENT, s, ptr, base);
       |                ^~~~~~~~~~~
       |                wcstoull

 In file included from ../../../../../newlib-1.16.0/newlib/libc/reent/signalr.c:7:
 ../../../../../newlib-1.16.0/newlib/libc/reent/signalr.c: In function ‘_kill_r’:
 ../../../../../newlib-1.16.0/newlib/libc/reent/signalr.c:61:14: error: implicit declaration of function ‘kill’; did you mean ‘_kill’? [-Wimplicit-function-declaration]
    61 |   if ((ret = _kill (pid, sig)) == -1 && errno != 0)
       |              ^~~~~


Index: xen-4.18.2-testing/stubdom/Makefile
===================================================================
--- xen-4.18.2-testing.orig/stubdom/Makefile
+++ xen-4.18.2-testing/stubdom/Makefile
@@ -97,6 +97,7 @@ newlib-$(NEWLIB_VERSION): newlib-$(NEWLI
 	patch -d $@ -p1 < newlib-disable-texinfo.patch
 	patch -d $@ -p1 < newlib-cygmon-gmon.patch
 	patch -d $@ -p1 < newlib-makedoc.patch
+	patch -d $@ -p1 < newlib-gcc14-pragmas.patch
 	find $@ -type f | xargs perl -i.bak \
 		-pe 's/\b_(tzname|daylight|timezone)\b/$$1/g'
 	touch $@
Index: xen-4.18.2-testing/stubdom/newlib-gcc14-pragmas.patch
===================================================================
--- /dev/null
+++ xen-4.18.2-testing/stubdom/newlib-gcc14-pragmas.patch
@@ -0,0 +1,36 @@
+--- newlib-1.16.0/newlib/libc/stdlib/wcstoull.c.orig	2024-06-04 15:32:01.495146632 -0600
++++ newlib-1.16.0/newlib/libc/stdlib/wcstoull.c	2024-06-04 15:38:56.627156524 -0600
+@@ -127,6 +127,10 @@ PORTABILITY
+
+ #ifndef _REENT_ONLY
+
++#if __GNUC__ >= 14
++#pragma GCC diagnostic ignored "-Wimplicit-function-declaration"
++#endif
++
+ unsigned long long
+ _DEFUN (wcstoull, (s, ptr, base),
+ 	_CONST wchar_t *s _AND
+--- newlib-1.16.0/newlib/libc/reent/signalr.c.orig	2024-06-04 15:39:15.139156966 -0600
++++ newlib-1.16.0/newlib/libc/reent/signalr.c	2024-06-04 15:40:24.899158628 -0600
+@@ -49,6 +49,10 @@ DESCRIPTION
+ 	<<errno>>.
+ */
+
++#if __GNUC__ >= 14
++#pragma GCC diagnostic ignored "-Wimplicit-function-declaration"
++#endif
++
+ int
+ _DEFUN (_kill_r, (ptr, pid, sig),
+      struct _reent *ptr _AND
+--- newlib-1.16.0/newlib/doc/makedoc.c.orig	2024-06-04 16:07:54.423197934 -0600
++++ newlib-1.16.0/newlib/doc/makedoc.c	2024-06-04 16:15:15.395208441 -0600
+@@ -798,6 +798,7 @@ DEFUN( iscommand,(ptr, idx),
+ }
+
+
++static unsigned int
+ DEFUN(copy_past_newline,(ptr, idx, dst),
+       string_type *ptr AND
+       unsigned int idx AND
--- xen-4.18.2-testing/extras/mini-os-remote/include/posix/sys/mman.h.orig	2024-06-04 16:27:35.155226069 -0600
+++ xen-4.18.2-testing/extras/mini-os-remote/include/posix/sys/mman.h	2024-06-04 16:31:46.591232060 -0600
@@ -16,7 +16,7 @@
 
 void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) asm("mmap64");
 int munmap(void *start, size_t length);
-static inline mlock(const void *addr, size_t len) { return 0; }
-static inline munlock(const void *addr, size_t len) { return 0; }
+static inline int mlock(const void *addr, size_t len) { return 0; }
+static inline int munlock(const void *addr, size_t len) { return 0; }
 
 #endif /* _POSIX_SYS_MMAN_H */