Merge branch 'js/ci-gcc-12-fixes'

Fixes real problems noticed by gcc 12 and works around false
positives.

* js/ci-gcc-12-fixes:
  dir.c: avoid "exceeds maximum object size" error with GCC v12.x
  nedmalloc: avoid new compile error
  compat/win32/syslog: fix use-after-realloc

1 files changed, 9 insertions, 0 deletions

diff --git a/dir.c b/dir.c
index 6b030be2ec..3633c0852e 100644
--- a/dir.c
+++ b/dir.c
@@ -3138,6 +3138,15 @@ char *git_url_basename(const char *repo, int is_bundle, int is_bare)
 	}
 
 	/*
+	 * It should not be possible to overflow `ptrdiff_t` by passing in an
+	 * insanely long URL, but GCC does not know that and will complain
+	 * without this check.
+	 */
+	if (end - start < 0)
+		die(_("No directory name could be guessed.\n"
+		      "Please specify a directory on the command line"));
+
+	/*
 	 * Strip trailing port number if we've got only a
 	 * hostname (that is, there is no dir separator but a
 	 * colon). This check is required such that we do not