libcap-ng: add package libcap-ng

Signed-off-by: Lucian Cristian <lucian.cristian@gmail.com>

libs/libcap-ng/Makefile

@@ -0,0 +1,90 @@
+#
+# Copyright (C) 2020 Lucian Cristian
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=libcap-ng
+PKG_VERSION:=0.7.10
+PKG_RELEASE:=1
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://people.redhat.com/sgrubb/libcap-ng
+PKG_HASH:=a84ca7b4e0444283ed269b7a29f5b6187f647c82e2b876636b49b9a744f0ffbf
+
+PKG_MAINTAINER:=Lucian CRISTIAN <lucian.cristian@gmail.com>
+PKG_LICENSE:=GPL-2.0-or-later LGPL-2.1-or-later
+PKG_LICENSE_FILES:=License
+
+PKG_INSTALL:=1
+PKG_BUILD_PARALLEL:=1
+PKG_FIXUP:=autoreconf
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/libcap-ng/Default
+  TITLE:=POSIX capabilities library
+  SECTION:=libs
+  CATEGORY:=Libraries
+  URL:=https://people.redhat.com/sgrubb/libcap-ng/index.html
+endef
+
+define Package/libcap-ng/description/Default
+  POSIX capabilities library
+endef
+
+define Package/libcap-ng
+  $(call Package/libcap-ng/Default)
+  TITLE += library
+endef
+
+define Package/libcap-ng-bin
+  $(call Package/libcap-ng/Default)
+  TITLE += binaries
+  DEPENDS += libcap-ng
+endef
+
+define Package/libcap-ng-bin/description
+  $(call Package/libcap-ng/description/Default)
+  .
+  This package contains the libcap-ng utilities.
+endef
+
+TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed $(FPIC)
+TARGET_CFLAGS += -flto
+
+CONFIGURE_VARS += \
+    ac_cv_prog_swig_found=no
+
+CONFIGURE_ARGS += \
+    --prefix=/usr \
+    --without-python \
+    --without-python3
+
+define Build/InstallDev
+	$(INSTALL_DIR) $(1)/usr/include
+	$(CP) $(PKG_INSTALL_DIR)/usr/include/*.h $(1)/usr/include/
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libcap-ng.{so*,a} $(1)/usr/lib/
+	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/libcap-ng.pc $(1)/usr/lib/pkgconfig/
+	$(INSTALL_DIR) $(1)/usr/share/aclocal
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/share/aclocal/cap-ng.m4\
+	 $(1)/usr/share/aclocal
+endef
+
+define Package/libcap-ng/install
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libcap-ng.so* $(1)/usr/lib/
+endef
+
+define Package/libcap-ng-bin/install
+	$(INSTALL_DIR) $(1)/usr/sbin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/* $(1)/usr/sbin/
+endef
+
+$(eval $(call BuildPackage,libcap-ng))
+$(eval $(call BuildPackage,libcap-ng-bin))

libs/libcap-ng/patches/add_library_if_header_found.patch

@@ -0,0 +1,30 @@
+From 2c855b76362d1027abea967ac253cae8a7c160c3 Mon Sep 17 00:00:00 2001
+From: Trevor Woerner <twoerner@gmail.com>
+Date: Wed, 6 May 2020 17:38:05 -0400
+Subject: [PATCH] configure.ac: add library if header found (#10)
+
+If the pthread.h header is found, make sure library containing
+"pthread_atfork" is added to the list of libraries against which to link.
+On some hosts (e.g. openSUSE 15.1) "-lpthread" needs to be explicitly added
+in order for the code to compile correctly.
+
+Signed-off-by: Trevor Woerner <twoerner@gmail.com>
+---
+ configure.ac | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/configure.ac b/configure.ac
+index 9d6aca3..4fbe4d3 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -56,7 +56,9 @@ AC_CHECK_HEADERS(sys/xattr.h, [], [
+ 	AC_CHECK_HEADERS(attr/xattr.h, [], [AC_MSG_WARN(attr/xattr.h not found, disabling file system capabilities.)])
+ 	])
+ AC_CHECK_HEADERS(linux/securebits.h, [], [])
+-AC_CHECK_HEADERS(pthread.h, [], [AC_MSG_WARN(pthread.h not found, disabling pthread_atfork.)])
++AC_CHECK_HEADERS(pthread.h,
++	[AC_SEARCH_LIBS(pthread_atfork, pthread)],
++	[AC_MSG_WARN(pthread.h not found, disabling pthread_atfork.)])
+ 
+ AC_C_CONST
+ AC_C_INLINE

libs/libcap-ng/patches/fix-includes.patch

@@ -0,0 +1,11 @@
+diff -ru libcap-ng-0.7.4.orig/src/cap-ng.c libcap-ng-0.7.4/src/cap-ng.c
+--- libcap-ng-0.7.4.orig/src/cap-ng.c	2014-04-24 15:41:43.000000000 -0300
++++ libcap-ng-0.7.4/src/cap-ng.c	2015-04-15 08:45:10.783335463 -0300
+@@ -34,6 +34,7 @@
+ #include <stdarg.h>
+ #include <errno.h>
+ #include <fcntl.h>
++#include <endian.h>
+ #include <byteswap.h>
+ #ifdef HAVE_SYSCALL_H
+ #include <sys/syscall.h>

libs/libcap-ng/patches/fix_build_without_threads.patch

@@ -0,0 +1,26 @@
+From 9b5597dc780a9da292f9142899a992cfc6ca081d Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Thu, 7 May 2020 00:19:18 +0200
+Subject: [PATCH] src/cap-ng.c: fix build without threads (#13)
+
+Put pthread_atfork under #ifdef HAVE_PTHREAD_H block
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+---
+ src/cap-ng.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/cap-ng.c b/src/cap-ng.c
+index 35fcd7a..97a3dbd 100644
+--- a/src/cap-ng.c
++++ b/src/cap-ng.c
+@@ -166,7 +166,9 @@ static void deinit(void)
+ static void init_lib(void) __attribute__ ((constructor));
+ static void init_lib(void)
+ {
++#ifdef HAVE_PTHREAD_H
+ 	pthread_atfork(NULL, NULL, deinit);
++#endif
+ }
+ 
+ static void init(void)