Fix build: BCC library was split in two

CMakeLists.txt

@@ -25,7 +25,7 @@ ExternalProject_Add(bcc
   STEP_TARGETS build update
   EXCLUDE_FROM_ALL 1
   UPDATE_DISCONNECTED 1
-  BUILD_COMMAND ${CMAKE_COMMAND} --build . --target bcc-loader-static
+  BUILD_COMMAND ${CMAKE_COMMAND} --build . --target bcc-static
 )
 
 add_subdirectory(src)

src/CMakeLists.txt

@@ -34,5 +34,6 @@ target_link_libraries(bpftrace ${llvm_libs})
 add_dependencies(bpftrace bcc-build)
 ExternalProject_Get_Property(bcc source_dir binary_dir)
 include_directories(${source_dir}/src/cc)
+target_link_libraries(bpftrace ${binary_dir}/src/cc/libbpf.a)
 target_link_libraries(bpftrace ${binary_dir}/src/cc/libbcc-loader-static.a)
 target_link_libraries(bpftrace ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../../usr/lib/x86_64-linux-gnu/libelf.a)

tests/CMakeLists.txt

@@ -21,6 +21,7 @@ add_executable(bpftrace_test
 add_dependencies(bpftrace_test bcc-build)
 ExternalProject_Get_Property(bcc source_dir binary_dir)
 include_directories(${source_dir}/src/cc)
+target_link_libraries(bpftrace_test ${binary_dir}/src/cc/libbpf.a)
 target_link_libraries(bpftrace_test ${binary_dir}/src/cc/libbcc-loader-static.a)
 target_link_libraries(bpftrace_test /usr/lib/x86_64-linux-gnu/libelf.a)
 target_link_libraries(bpftrace_test /usr/lib/x86_64-linux-gnu/libz.a)