# Allow the source files to find headers in src/
include_directories(${PROJECT_SOURCE_DIR}/src)

if (DEFINED BENCHMARK_CXX_LINKER_FLAGS)
  list(APPEND CMAKE_SHARED_LINKER_FLAGS ${BENCHMARK_CXX_LINKER_FLAGS})
  list(APPEND CMAKE_MODULE_LINKER_FLAGS ${BENCHMARK_CXX_LINKER_FLAGS})
endif()

# Define the source files
set(SOURCE_FILES "benchmark.cc" "colorprint.cc" "commandlineflags.cc"
                 "console_reporter.cc" "csv_reporter.cc" "json_reporter.cc"
                 "log.cc" "reporter.cc" "sleep.cc" "string_util.cc"
                 "sysinfo.cc" "walltime.cc" "complexity.cc")
# Add headers to the list of source files. cmake does not require this,
# but IDEs such as Visual Studio need this to add the headers
# to the generated project.
set(_d "${PROJECT_SOURCE_DIR}/include/benchmark")
list(APPEND SOURCE_FILES "${_d}/benchmark.h" "${_d}/benchmark_api.h"
            "${_d}/macros.h" "${_d}/reporter.h" "arraysize.h" "check.h"
            "colorprint.h" "commandlineflags.h" "complexity.h"
            "cycleclock.h" "internal_macros.h" "log.h" "mutex.h"
            "re.h" "sleep.h" "stat.h" "string_util.h" "sysinfo.h"
            "walltime.h")
unset(_d)

# Determine the correct regular expression engine to use
if(HAVE_STD_REGEX)
  set(RE_FILES "re_std.cc")
elseif(HAVE_GNU_POSIX_REGEX)
  set(RE_FILES "re_posix.cc")
elseif(HAVE_POSIX_REGEX)
  set(RE_FILES "re_posix.cc")
else()
  message(FATAL_ERROR "Failed to determine the source files for the regular expression backend")
endif()

add_library(benchmark ${SOURCE_FILES} ${RE_FILES})

set_target_properties(benchmark PROPERTIES
  OUTPUT_NAME "benchmark"
  VERSION ${GENERIC_LIB_VERSION}
  SOVERSION ${GENERIC_LIB_SOVERSION}
)

# Link threads.
target_link_libraries(benchmark  ${BENCHMARK_CXX_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})

# We need extra libraries on Windows
if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
  target_link_libraries(benchmark Shlwapi)
endif()

# Expose public API
target_include_directories(benchmark PUBLIC ${PROJECT_SOURCE_DIR}/include)

# Install target (will install the library to specified CMAKE_INSTALL_PREFIX variable)
install(
  TARGETS benchmark
  ARCHIVE DESTINATION lib
  LIBRARY DESTINATION lib
  RUNTIME DESTINATION bin
  COMPONENT library)

install(
  DIRECTORY "${PROJECT_SOURCE_DIR}/include/benchmark"
  DESTINATION include
  FILES_MATCHING PATTERN "*.*h")