sys-fs/mhddfs: fix parallel builds

Signed-off-by: Sergey Popov <pinkbyte@gentoo.org>
Reported-by: Toralf Förster <toralf@gentoo.org>
Bug: https://bugs.gentoo.org/880051
Closes: https://bugs.gentoo.org/911984

sys-fs/mhddfs/files/mhddfs-0.1.39-parallel-build.patch

@@ -0,0 +1,17 @@
+Sometimes obj directory was not created during
+parallel builds
+
+Related bugreports:
+https://bugs.gentoo.org/880051
+https://bugs.gentoo.org/911984
+
+--- a/Makefile	2023-08-10 11:43:39.826589819 +0300
++++ b/Makefile	2023-08-10 11:43:50.121722774 +0300
+@@ -90,6 +90,7 @@
+ 	touch $@
+ 
+ obj/%.o: src/%.c
++	mkdir -p obj
+ 	$(CC) $(CFLAGS) -c $< -o $@
+ 
+ clean:

sys-fs/mhddfs/mhddfs-0.1.39-r2.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -29,6 +29,7 @@ PATCHES=(
 	"${FILESDIR}/${PN}-respect-compiler-vars.patch"
 	"${FILESDIR}/${P}-segfault-fix.patch"
 	"${FILESDIR}/${P}-xattr.patch"
+	"${FILESDIR}/${P}-parallel-build.patch"
 )
 
 src_compile() {