diff --git a/devel/boehm-gc/Makefile b/devel/boehm-gc/Makefile
index 079ef2c565b5..5a05fe3a7065 100644
--- a/devel/boehm-gc/Makefile
+++ b/devel/boehm-gc/Makefile
@@ -1,6 +1,6 @@
-# $NetBSD: Makefile,v 1.105 2022/09/11 12:25:23 wiz Exp $
+# $NetBSD: Makefile,v 1.106 2023/10/19 15:36:26 wiz Exp $
 
-DISTNAME=	gc-8.2.2
+DISTNAME=	gc-8.2.4
 PKGNAME=	${DISTNAME:S/gc/boehm-gc/}
 CATEGORIES=	devel
 MASTER_SITES=	http://www.hboehm.info/gc/gc_source/
@@ -22,7 +22,7 @@ TEST_TARGET=		check
 
 .include "../../mk/bsd.prefs.mk"
 
-.if !empty(MACHINE_PLATFORM:MDarwin-10.6.*)
+.if ${MACHINE_PLATFORM:MDarwin-10.6.*}
 CFLAGS+=		-D_XOPEN_SOURCE
 .endif
 
diff --git a/devel/boehm-gc/distinfo b/devel/boehm-gc/distinfo
index 51e92b3c12c0..e81d8e1a8359 100644
--- a/devel/boehm-gc/distinfo
+++ b/devel/boehm-gc/distinfo
@@ -1,6 +1,6 @@
-$NetBSD: distinfo,v 1.72 2023/05/28 06:12:20 dholland Exp $
+$NetBSD: distinfo,v 1.73 2023/10/19 15:36:26 wiz Exp $
 
-BLAKE2s (gc-8.2.2.tar.gz) = 57342fe55dd708b77796317d106759a34769721b35eb502de90af370e8b8001c
-SHA512 (gc-8.2.2.tar.gz) = 4a7b26789ce22ab72bfaadf3029362c5fe26737df1e856e43db7d9b24ee8acf625e35d596bb3f698f91d6a5ddfb6c45a952a1dbd18d47359569696a544c9c248
-Size (gc-8.2.2.tar.gz) = 1200115 bytes
+BLAKE2s (gc-8.2.4.tar.gz) = 204148bc44bdce40ac21085bda3cbaec416badf77e5705ed14eeae292483ec30
+SHA512 (gc-8.2.4.tar.gz) = 27d014378000f25fb2f5598904be85604822d5ed4553f8b3d1c279122300d3958b4432ec08f951cfd842d92121ea8a030dda34bf2475ec53d4fded551fdd3a98
+Size (gc-8.2.4.tar.gz) = 1210929 bytes
 SHA1 (patch-include_private_gcconfig.h) = 76b2e33017d4792c79f4540b47350649d514fe0e