From f6132c416155ccf2ddfb0d99f73f1b74ba073a7b Mon Sep 17 00:00:00 2001
From: Brooks Davis <brooks@FreeBSD.org>
Date: Tue, 19 Nov 2024 17:30:56 +0000
Subject: [PATCH] Mk/Uses/sbrk.mk: centralize sbrk handling

Add a USES=sbrk that sets BROKEN_aarch64 and BROKEN_risc64.  This paves
the way for further deprecation of sbrk and will be extended to support
patching around various uses.

Approved by:	portmgr (mat)
Differential Revision:	https://reviews.freebsd.org/D47258
---
 Mk/Uses/sbrk.mk | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 Mk/Uses/sbrk.mk

diff --git a/Mk/Uses/sbrk.mk b/Mk/Uses/sbrk.mk
new file mode 100644
index 000000000000..8f74e7a0e34c
--- /dev/null
+++ b/Mk/Uses/sbrk.mk
@@ -0,0 +1,21 @@
+# handle ports requring sbrk
+#
+# Feature:	sbrk
+# Usage:	USES=sbrk
+# Valid ARGS:	<none>
+#
+# Software requiring the sbrk pseudo-syscall is broken on aarch64 and
+# riscv64.  Mark it as such.
+#
+# MAINTAINER:	brooks@FreeBSD.org
+
+.if !defined(_INCLUDE_USES_SBRK_MK)
+_INCLUDE_USES_SBRK_MK=	yes
+
+.  if empty(sbrk_ARGS)
+BROKEN_aarch64=	requires sbrk
+BROKEN_riscv64=	requires sbrk
+.  else
+IGNORE=	Incorrect 'USES+=sbrk:${sbrk_ARGS}'.  No arguments permitted
+.  endif
+.endif