[openwrt/openwrt] libselinux: use musl-fts for host builds

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch openwrt-22.03:
https://git.openwrt.org/ce7ee54c550aca656d932b742de8d2b7d7eb1286

commit ce7ee54c550aca656d932b742de8d2b7d7eb1286
Author: Rosen Penev <rosenp at gmail.com>
AuthorDate: Thu Sep 23 23:47:31 2021 -0700

    libselinux: use musl-fts for host builds
    
    Fixes compilation under musl based distros like Alpine Linux.
    
    Also add pcre/host as a build dependency as it's needed.
    
    Signed-off-by: Rosen Penev <rosenp at gmail.com>
    (cherry picked from commit abb2683de36ffe7b29a1b6ea5a8d7edf73719152)
---
 package/libs/libselinux/Makefile | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/package/libs/libselinux/Makefile b/package/libs/libselinux/Makefile
index 3969ef38d9..9520afc771 100644
--- a/package/libs/libselinux/Makefile
+++ b/package/libs/libselinux/Makefile
@@ -7,7 +7,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libselinux
 PKG_VERSION:=3.3
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://github.com/SELinuxProject/selinux/releases/download/$(PKG_VERSION)
@@ -18,6 +18,8 @@ PKG_LICENSE:=libselinux-1.0
 PKG_LICENSE_FILES:=LICENSE
 PKG_MAINTAINER:=Thomas Petazzoni <thomas.petazzoni at bootlin.com>
 
+HOST_BUILD_DEPENDS:=musl-fts/host pcre/host
+
 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/host-build.mk
 
@@ -107,7 +109,8 @@ HOST_LDFLAGS += -Wl,-rpath="$(STAGING_DIR_HOSTPKG)/lib"
 
 HOST_MAKE_FLAGS += \
 	PREFIX=$(STAGING_DIR_HOSTPKG) \
-	SHLIBDIR=$(STAGING_DIR_HOSTPKG)/lib
+	SHLIBDIR=$(STAGING_DIR_HOSTPKG)/lib \
+	FTS_LDLIBS=-lfts
 
 ifeq ($(CONFIG_USE_MUSL),y)
 MAKE_FLAGS += FTS_LDLIBS=-lfts