diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 706af68a..016dd917 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -46,6 +46,11 @@ if (POLICY CMP0091) cmake_policy(SET CMP0091 NEW) endif (POLICY CMP0091) +# try_compile() honors the CMAKE_CXX_STANDARD value +if (POLICY CMP0067) + cmake_policy(SET CMP0067 NEW) +endif (POLICY CMP0067) + project(absl LANGUAGES CXX) include(CTest) @@ -229,4 +234,25 @@ if(ABSL_ENABLE_INSTALL) PATTERN "copts" EXCLUDE PATTERN "testdata" EXCLUDE ) + + file(READ "absl/base/options.h" ABSL_INTERNAL_OPTIONS_H_CONTENTS) + if (ABSL_INTERNAL_AT_LEAST_CXX17) + string(REGEX REPLACE + "#define ABSL_OPTION_USE_STD_([^ ]*) 2" + "#define ABSL_OPTION_USE_STD_\\1 1" + ABSL_INTERNAL_OPTIONS_H_PINNED + "${ABSL_INTERNAL_OPTIONS_H_CONTENTS}") + else() + string(REGEX REPLACE + "#define ABSL_OPTION_USE_STD_([^ ]*) 2" + "#define ABSL_OPTION_USE_STD_\\1 0" + ABSL_INTERNAL_OPTIONS_H_PINNED + "${ABSL_INTERNAL_OPTIONS_H_CONTENTS}") + endif() + file(WRITE "${CMAKE_BINARY_DIR}/options-pinned.h" "${ABSL_INTERNAL_OPTIONS_H_PINNED}") + + install(FILES "${CMAKE_BINARY_DIR}/options-pinned.h" + DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/absl/base + RENAME "options.h") + endif() # ABSL_ENABLE_INSTALL |