src/patches/samurai-realloc-zero-length.patch

1--- a/util.c 2026-08-24 12:58:01.409014074 +0300

2+++ b/util.c 2026-08-24 12:58:01.414746803 +0300

3@@ -64,7 +64,14 @@

4 errno = ENOMEM;

5 return NULL;

6 }

7- return realloc(p, n * m);

8+ /* realloc(p, 0) is NOT required to return a non-null pointer, and

9+ xreallocarray() below treats null as failure. This toolchain's

10+ libc returns null for realloc(NULL, 0) while malloc(0) returns

11+ non-null, so deps.c's zero-length save on a fresh build

12+ directory aborts with a bogus "reallocarray" error. Ask for one

13+ byte instead; every caller of a zero-length result copies zero

14+ bytes into it. */

15+ return realloc(p, n * m ? n * m : 1);

16 }

18 void *