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-rw-r--r--git-compat-util.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/git-compat-util.h b/git-compat-util.h
index 79b5122b4f..40498b33c9 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -539,6 +539,19 @@ void git_qsort(void *base, size_t nmemb, size_t size,
#define fstat_is_reliable() 1
#endif
+#ifndef va_copy
+/*
+ * Since an obvious implementation of va_list would be to make it a
+ * pointer into the stack frame, a simple assignment will work on
+ * many systems. But let's try to be more portable.
+ */
+#ifdef __va_copy
+#define va_copy(dst, src) __va_copy(dst, src)
+#else
+#define va_copy(dst, src) ((dst) = (src))
+#endif
+#endif
+
/*
* Preserves errno, prints a message, but gives no warning for ENOENT.
* Always returns the return value of unlink(2).