diff --git a/srcpkgs/perl/template b/srcpkgs/perl/template
index 5c14e1f61aa..129f70ad82d 100644
--- a/srcpkgs/perl/template
+++ b/srcpkgs/perl/template
@@ -175,9 +175,11 @@ do_configure() {
 		export HOSTLDFLAGS
 		CFLAGS+=" -D_FILE_OFFSET_BITS=64 -DLARGE_FILE_SUPPORT64 ";;
 	*-musl)
-		HOSTCFLAGS+=" -D_GNU_SOURCE"
+		HOSTCFLAGS+=" -D_DEFAULT_SOURCE"
 		export HOSTCFLAGS
-		CFLAGS+=" -D_GNU_SOURCE";;
+		HOSTLDFLAGS+=" -pthread"
+		export HOSTLDFLAGS
+		CFLAGS+=" -D_DEFAULT_SOURCE";;
 	esac
 
 	export LD="$CC"