Index: hacks.mk
===================================================================
RCS file: hacks.mk
diff -N hacks.mk
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ hacks.mk	3 Oct 2015 16:58:50 -0000
@@ -0,0 +1,16 @@
+# $NetBSD$
+
+.if !defined(WEBKIT_GTK_HACKS_MK)
+WEBKIT_GTK_HACKS_MK=	defined
+
+# [Sat Oct  3 16:44:53 CEST 2015 : leot]
+# On i386 archs -latomic is added during the build phase when linking
+# libwebkit2gtk-4.0.so for atomic operations.
+# Forcing -march=i586 (or better) avoids that (i[56]86 provide required
+# 64-bit compare-and-swap instruction).
+.if ${MACHINE_ARCH} == "i386"
+PKG_HACKS+=	i386-atomicops
+CXXFLAGS+=	-march=i586
+.endif
+
+.endif	# WEBKIT_GTK_HACKS_MK