libcap: Add optional support for libattr capabilities

libcap can optionally link to libattr to support extra
file capabilities. Link to this library and pull it as
dependency if BR2_PACKAGE_ATTR is selected.

[Peter: use LIBCAP_ prefix on variable]
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

diff --git a/package/libcap/libcap.mk b/package/libcap/libcap.mk
index dcd3a184abfeebadef8e166889f8328ce48b4e7e..6adac73096a43285d60e033c61f228539b3155db 100644 (file)
--- a/package/libcap/libcap.mk
+++ b/package/libcap/libcap.mk
@@ -15,19 +15,27 @@ LIBCAP_LICENSE_FILES = License
 LIBCAP_DEPENDENCIES = host-libcap
 LIBCAP_INSTALL_STAGING = YES
 
+ifeq ($(BR2_PACKAGE_ATTR),y)
+       LIBCAP_DEPENDENCIES += attr
+       LIBCAP_HAVE_LIBATTR = yes
+else
+       LIBCAP_HAVE_LIBATTR = no
+endif
+
 define LIBCAP_BUILD_CMDS
        $(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) -C $(@D) \
-               LIBATTR=no BUILD_CC="$(HOSTCC)" BUILD_CFLAGS="$(HOST_CFLAGS)"
+               LIBATTR=$(LIBCAP_HAVE_LIBATTR) BUILD_CC="$(HOSTCC)" \
+               BUILD_CFLAGS="$(HOST_CFLAGS)"
 endef
 
 define LIBCAP_INSTALL_STAGING_CMDS
-       $(TARGET_MAKE_ENV) $(MAKE) -C $(@D) LIBATTR=no DESTDIR=$(STAGING_DIR) \
-               prefix=/usr lib=lib install
+       $(TARGET_MAKE_ENV) $(MAKE) -C $(@D) LIBATTR=$(LIBCAP_HAVE_LIBATTR) \
+               DESTDIR=$(STAGING_DIR) prefix=/usr lib=lib install
 endef
 
 define LIBCAP_INSTALL_TARGET_CMDS
-       $(TARGET_MAKE_ENV) $(MAKE) -C $(@D) LIBATTR=no DESTDIR=$(TARGET_DIR) \
-               prefix=/usr lib=lib install
+       $(TARGET_MAKE_ENV) $(MAKE) -C $(@D) LIBATTR=$(LIBCAP_HAVE_LIBATTR) \
+               DESTDIR=$(TARGET_DIR) prefix=/usr lib=lib install
 endef
 
 # progs use fork()