gentoo-overlay/mail-filter/opendkim/files/opendkim-2.10.3-define-P-macro-in-libvbr.patch

From 50a91575cee8d08682f090d2d6bdb4806eccfbcd Mon Sep 17 00:00:00 2001
From: Wynn Wolf Arbor <wolf@oriole.systems>
Date: Wed, 10 Jun 2020 09:37:03 +0200
Subject: [PATCH] Define __P() macro in libvbr

Definitions for this macro have been added throughout the codebase in
commits 91e7407d, 705948fd, 227fa252, 842c1733, and b730bdc0, but one
was still missing from libvbr. glibc contains a definition for legacy
reasons, but other libcs might not. Particularly, the musl libc does not
contain it, leading to build errors when enabling support for VBR.

Add a definition for __P() to vbr.h to fix this.
---
 libvbr/vbr.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/libvbr/vbr.h b/libvbr/vbr.h
index 4bef1f36..3bcb9212 100644
--- a/libvbr/vbr.h
+++ b/libvbr/vbr.h
@@ -12,6 +12,16 @@
 /* system includes */
 #include <sys/types.h>

+#ifdef __STDC__
+# ifndef __P
+#  define __P(x)  x
+# endif /* ! __P */
+#else /* __STDC__ */
+# ifndef __P
+#  define __P(x)  ()
+# endif /* ! __P */
+#endif /* __STDC__ */
+
 /* strings */
 #define	VBR_ALL			"all"
 #define	VBR_INFOHEADER		"VBR-Info"
--
2.27.0