cmake: Allow cephfs and ceph-mds to be build when building on FreeBSD

on FreeBSD keyutil absence prevents building KRBD and mount.
But on FreeBSD icephfs, ceph-fuse and ceph-mds do work, so we need
ceph-mds to be build.

Signed-off-by: Willem Jan Withagen <wjw@digiware.nl>

CMakeLists.txt

@@ -132,10 +132,13 @@ if(LINUX)
   set(HAVE_UDEV ${UDEV_FOUND})
   find_package(blkid REQUIRED)
   set(HAVE_BLKID ${BLKID_FOUND})
+  find_package(keyutils REQUIRED)
+  set(HAVE_KEYUTILS ${KEYUTILS_FOUND})
 elseif(FREEBSD)
   set(HAVE_UDEV OFF)
   set(HAVE_LIBAIO OFF)
   set(HAVE_BLKID OFF)
+  set(HAVE_KEYUTILS OFF)
 else()
   set(HAVE_UDEV OFF)
   set(HAVE_BLKID OFF)
@@ -231,6 +234,13 @@ option(WITH_KRBD "Enable Linux krbd support of 'rbd' utility" ON)
 if(WITH_KRBD AND NOT WITH_RBD)
   message(FATAL_ERROR "Cannot have WITH_KRBD without WITH_RBD.")
 endif()
+if(LINUX)
+  if(WITH_LIBCEPHFS OR WITH_KRBD)
+    # keyutils is only used when talking to the Linux Kernel key store 
+    find_package(keyutils REQUIRED)
+    set(HAVE_KEYUTILS ${KEYUTILS_FOUND})
+  endif()
+endif()
 
 option(WITH_LEVELDB "LevelDB is here" ON)
 if(WITH_LEVELDB)
@@ -301,10 +311,6 @@ if (HAVE_LIBTCMALLOC AND TCMALLOC_VERSION_STRING VERSION_LESS 2.6.2)
   set(LIBTCMALLOC_MISSING_ALIGNED_ALLOC ON)
 endif()
 
-if(WITH_LIBCEPHFS OR WITH_KRBD)
-  find_package(keyutils REQUIRED)
-endif()
-
 find_package(CURL REQUIRED)
 set(CMAKE_REQUIRED_INCLUDES ${CURL_INCLUDE_DIRS})
 set(CMAKE_REQUIRED_LIBRARIES ${CURL_LIBRARIES})

src/CMakeLists.txt

@@ -640,8 +640,6 @@ add_subdirectory(bash_completion)
 add_subdirectory(client)
 
 if(WITH_LIBCEPHFS)
-  find_package(PkgConfig QUIET REQUIRED)
-  pkg_check_modules(CAPNG REQUIRED libcap-ng)
   set(libcephfs_srcs libcephfs.cc)
   add_library(cephfs ${CEPH_SHARED} ${libcephfs_srcs})
   target_link_libraries(cephfs PRIVATE client ceph-common
@@ -668,7 +666,9 @@ if(WITH_LIBCEPHFS)
   add_executable(ceph-syn ${ceph_syn_srcs})
   target_link_libraries(ceph-syn client global-static ceph-common)
   install(TARGETS ceph-syn DESTINATION bin)
-  add_subdirectory(mount)
+  if(LINUX)
+    add_subdirectory(mount)
+  endif()
 endif(WITH_LIBCEPHFS)
 
 if(WITH_FUSE)

src/common/CMakeLists.txt

@@ -177,7 +177,7 @@ target_link_libraries(crc32
 
 add_library(common_utf8 STATIC utf8.c)
 
-if(WITH_LIBCEPHFS OR WITH_KRBD)
+if(HAVE_KEYUTILS)
   set(parse_secret_srcs
     secret.c)
   add_library(parse_secret_objs OBJECT ${parse_secret_srcs})

src/mount/CMakeLists.txt

@@ -1,3 +1,6 @@
+find_package(PkgConfig QUIET REQUIRED)
+pkg_check_modules(CAPNG REQUIRED libcap-ng)
+
 set(mount_ceph_srcs
   mount.ceph.c conf.cc)
 add_executable(mount.ceph ${mount_ceph_srcs}