Add patch to libsepol to fix semantic level issue.

.travis.yml

@@ -41,6 +41,7 @@ before_install:
   # Download current SELinux userspace tools and libraries
   - curl -sS -L https://github.com/SELinuxProject/selinux/archive/20150202.tar.gz | tar xz
   - mv selinux-20150202 selinux-src
+  - patch -p1 -d selinux-src < patches/sepol-2.4-mls-semantic-level-expand.patch
 
   # Ubuntu 12.04 coreutils is too old to provide "ln --relative" :(
   - sed 's/ln -sf --relative /ln -sf /' -i selinux-src/libsepol/src/Makefile

patches/README

@@ -0,0 +1 @@
+If there is a bug in one of SETools' dependencies, patches can be put here.

patches/libsepol-2.4-mls-semantic-level-expand.patch

@@ -0,0 +1,20 @@
+diff --git a/libsepol/src/expand.c b/libsepol/src/expand.c
+index 467f7a7..3193ef5 100644
+--- a/libsepol/src/expand.c
++++ b/libsepol/src/expand.c
+@@ -914,10 +914,11 @@ int mls_semantic_level_expand(mls_semantic_level_t * sl, mls_level_t * l,
+ 		}
+ 		for (i = cat->low - 1; i < cat->high; i++) {
+ 			if (!ebitmap_get_bit(&levdatum->level->cat, i)) {
+-				ERR(h, "Category %s can not be associate with "
++				ERR(h, "Category %s can not be associated with "
+ 				    "level %s",
+ 				    p->p_cat_val_to_name[i],
+ 				    p->p_sens_val_to_name[l->sens - 1]);
++				return -1;
+ 			}
+ 			if (ebitmap_set_bit(&l->cat, i, 1)) {
+ 				ERR(h, "Out of memory!");
+-- 
+2.3.0
+