MB-46000: Exclude test-only object libraries from 'all' target

CMake implicitly adds object libraries to the 'all' target. However
forestdb has a couple of object libraries which are only used for
tests; as such we don't want to build them by default.

Change-Id: I3579877bb803fad9838ac81982b1743c0a2d9b2b
Reviewed-on: http://review.couchbase.org/c/forestdb/+/156163
Tested-by: Build Bot <[email protected]>
Reviewed-by: Trond Norbye <[email protected]>

Author: daverigby

tests/CMakeLists.txt

@@ -1,6 +1,7 @@
 SET(STAT_AGGREGATOR
     ${PROJECT_SOURCE_DIR}/tests/stats-agg/stat_aggregator.cc)
 add_library(TEST_STAT_AGG OBJECT ${STAT_AGGREGATOR})
+set_target_properties(TEST_STAT_AGG PROPERTIES EXCLUDE_FROM_ALL TRUE)
 
 set(ROOT_SRC ${PROJECT_SOURCE_DIR}/src)
 set(ROOT_UTILS ${PROJECT_SOURCE_DIR}/utils)

tests/anomaly/CMakeLists.txt

@@ -36,6 +36,7 @@ SET(FORESTDB_COMMON_CORE_SRC
 add_library(FDB_TOOLS_CCORE OBJECT ${FORESTDB_COMMON_CORE_SRC})
 set_target_properties(FDB_TOOLS_CCORE PROPERTIES
                       COMPILE_FLAGS "-D_FDB_TOOLS ${CB_GNU_CXX11_OPTION}")
+set_target_properties(FDB_TOOLS_CCORE PROPERTIES EXCLUDE_FROM_ALL TRUE)
 
 cb_add_test_executable(fdb_anomaly_test
                $<TARGET_OBJECTS:FDB_TOOLS_CCORE>