cmake: dedup components when finding pmem

otherwise we always find libpmem twice if libpmem is explicitly
specified when find_package()

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/cmake/modules/Findpmem.cmake b/cmake/modules/Findpmem.cmake
index def31cb1ff28e1456957f25330e5cbcc072c93d5..1f6e9eab0f559364b5118491adfdf7a6bd23ee90 100644 (file)
--- a/cmake/modules/Findpmem.cmake
+++ b/cmake/modules/Findpmem.cmake
@@ -6,7 +6,11 @@
 
 find_package(PkgConfig QUIET REQUIRED)
 
-foreach(component pmem ${pmem_FIND_COMPONENTS})
+# all pmem libraries depend on pmem, so always find it
+set(pmem_FIND_COMPONENTS ${pmem_FIND_COMPONENTS} pmem)
+list(REMOVE_DUPLICATES pmem_FIND_COMPONENTS)
+
+foreach(component ${pmem_FIND_COMPONENTS})
   set(pmem_COMPONENTS pmem pmemobj)
   list(FIND pmem_COMPONENTS "${component}" found)
   if(found EQUAL -1)