commit b76d1ca08902ed31dd7ae7f364f53ef35190464a
author Marat Dukhan <marat@fb.com> Wed Jan 31 17:21:26 2018 -0800
committer Marat Dukhan <marat@fb.com> Wed Jan 31 18:36:19 2018 -0800
tree 3681db88cd4e6558e336815a2f102d82a45f8119
parent 7d77d72beda99d49ea57ff0b438f8f0db1ef756a

CMake: support options to use pre-downloaded deps

CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f7f93db..fe2c694 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,28 +22,34 @@
 SET(CONFU_DEPENDENCIES_BINARY_DIR ${CMAKE_BINARY_DIR}/deps
   CACHE PATH "Confu-style dependencies binary directory")
 
-IF(NOT TARGET fxdiv)
+IF(NOT DEFINED FXDIV_SOURCE_DIR)
+  MESSAGE(STATUS "Downloading FXdiv to ${CONFU_DEPENDENCIES_SOURCE_DIR}/fxdiv (define FXDIV_SOURCE_DIR to avoid it)")
   CONFIGURE_FILE(cmake/DownloadFXdiv.cmake "${CMAKE_BINARY_DIR}/fxdiv-download/CMakeLists.txt")
   EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
     WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/fxdiv-download")
   EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" --build .
     WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/fxdiv-download")
+  SET(FXDIV_SOURCE_DIR "${CONFU_DEPENDENCIES_SOURCE_DIR}/fxdiv" CACHE STRING "FXdiv source directory")
 ENDIF()
 
-IF(NOT TARGET gtest)
+IF(PTHREADPOOL_BUILD_TESTS AND NOT DEFINED GOOGLETEST_SOURCE_DIR)
+  MESSAGE(STATUS "Downloading Google Test to ${CONFU_DEPENDENCIES_SOURCE_DIR}/googletest (define GOOGLETEST_SOURCE_DIR to avoid it)")
   CONFIGURE_FILE(cmake/DownloadGoogleTest.cmake "${CMAKE_BINARY_DIR}/googletest-download/CMakeLists.txt")
   EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
     WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/googletest-download")
   EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" --build .
     WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/googletest-download")
+  SET(GOOGLETEST_SOURCE_DIR "${CONFU_DEPENDENCIES_SOURCE_DIR}/googletest" CACHE STRING "Google Test source directory")
 ENDIF()
 
-IF(NOT TARGET benchmark)
+IF(PTHREADPOOL_BUILD_BENCHMARKS AND NOT DEFINED GOOGLEBENCHMARK_SOURCE_DIR)
+  MESSAGE(STATUS "Downloading Google Benchmark to ${CONFU_DEPENDENCIES_SOURCE_DIR}/googlebenchmark (define GOOGLEBENCHMARK_SOURCE_DIR to avoid it)")
   CONFIGURE_FILE(cmake/DownloadGoogleBenchmark.cmake "${CMAKE_BINARY_DIR}/googlebenchmark-download/CMakeLists.txt")
   EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
     WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/googlebenchmark-download")
   EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" --build .
     WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/googlebenchmark-download")
+  SET(GOOGLEBENCHMARK_SOURCE_DIR "${CONFU_DEPENDENCIES_SOURCE_DIR}/googlebenchmark" CACHE STRING "Google Benchmark source directory")
 ENDIF()
 
 # ---[ Build flags
@@ -97,7 +103,7 @@
   SET(FXDIV_BUILD_TESTS OFF CACHE BOOL "")
   SET(FXDIV_BUILD_BENCHMARKS OFF CACHE BOOL "")
   ADD_SUBDIRECTORY(
-    "${CONFU_DEPENDENCIES_SOURCE_DIR}/fxdiv"
+    "${FXDIV_SOURCE_DIR}"
     "${CONFU_DEPENDENCIES_BINARY_DIR}/fxdiv")
 ENDIF()
 TARGET_LINK_LIBRARIES(pthreadpool PRIVATE fxdiv)
@@ -111,7 +117,7 @@
   IF(NOT TARGET gtest)
     SET(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
     ADD_SUBDIRECTORY(
-      "${CONFU_DEPENDENCIES_SOURCE_DIR}/googletest"
+      "${GOOGLETEST_SOURCE_DIR}"
       "${CONFU_DEPENDENCIES_BINARY_DIR}/googletest")
   ENDIF()
 
@@ -125,7 +131,7 @@
   IF(NOT TARGET benchmark)
     SET(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "")
     ADD_SUBDIRECTORY(
-      "${CONFU_DEPENDENCIES_SOURCE_DIR}/googlebenchmark"
+      "${GOOGLEBENCHMARK_SOURCE_DIR}"
       "${CONFU_DEPENDENCIES_BINARY_DIR}/googlebenchmark")
   ENDIF()