diff --git a/dev-libs/libevent/libevent-2.0.21.recipe b/dev-libs/libevent/libevent-2.0.21.recipe
index e677584a8..113567b34 100644
--- a/dev-libs/libevent/libevent-2.0.21.recipe
+++ b/dev-libs/libevent/libevent-2.0.21.recipe
@@ -14,7 +14,7 @@ CHECKSUM_SHA256="22a530a8a5ba1cb9c080cba033206b17dacd21437762155c6d30ee6469f574f
 LICENSE="BSD (3-clause)"
 COPYRIGHT="2000-2007 Niels Provos, 2005 Nick Mathewson, and other contributors."
 
-REVISION="5"
+REVISION="6"
 
 ARCHITECTURES="x86_gcc2 x86 x86_64"
 SECONDARY_ARCHITECTURES="x86_gcc2 x86"
@@ -72,6 +72,10 @@ BUILD()
 	aclocal
 	autoconf
 	automake --add-missing
+
+	export CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS"
+	export CXXFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS"
+	export LDFLAGS="-lposix_error_mapper"
 	runConfigure ./configure
 	make $jobArgs
 }