diff options
| -rw-r--r-- | Modules/CheckFunctionExists.cmake | 2 | ||||
| -rw-r--r-- | Modules/CheckIncludeFileCXX.cmake | 2 | ||||
| -rw-r--r-- | Modules/CheckSymbolExists.cmake | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/Modules/CheckFunctionExists.cmake b/Modules/CheckFunctionExists.cmake index 01a652b..4c4334f 100644 --- a/Modules/CheckFunctionExists.cmake +++ b/Modules/CheckFunctionExists.cmake @@ -38,7 +38,7 @@ macro(CHECK_FUNCTION_EXISTS FUNCTION VARIABLE) - if(NOT DEFINED "${VARIABLE}") + if(NOT DEFINED "${VARIABLE}" OR "x${${VARIABLE}}" STREQUAL "x${VARIABLE}") set(MACRO_CHECK_FUNCTION_DEFINITIONS "-DCHECK_FUNCTION_EXISTS=${FUNCTION} ${CMAKE_REQUIRED_FLAGS}") if(NOT CMAKE_REQUIRED_QUIET) diff --git a/Modules/CheckIncludeFileCXX.cmake b/Modules/CheckIncludeFileCXX.cmake index 718e667..eff982c 100644 --- a/Modules/CheckIncludeFileCXX.cmake +++ b/Modules/CheckIncludeFileCXX.cmake @@ -44,7 +44,7 @@ # License text for the above reference.) macro(CHECK_INCLUDE_FILE_CXX INCLUDE VARIABLE) - if(NOT DEFINED "${VARIABLE}") + if(NOT DEFINED "${VARIABLE}" OR "x${${VARIABLE}}" STREQUAL "x${VARIABLE}") if(CMAKE_REQUIRED_INCLUDES) set(CHECK_INCLUDE_FILE_CXX_INCLUDE_DIRS "-DINCLUDE_DIRECTORIES=${CMAKE_REQUIRED_INCLUDES}") else() diff --git a/Modules/CheckSymbolExists.cmake b/Modules/CheckSymbolExists.cmake index 6f50c88..c31f6b6 100644 --- a/Modules/CheckSymbolExists.cmake +++ b/Modules/CheckSymbolExists.cmake @@ -50,7 +50,7 @@ macro(CHECK_SYMBOL_EXISTS SYMBOL FILES VARIABLE) endmacro() macro(_CHECK_SYMBOL_EXISTS SOURCEFILE SYMBOL FILES VARIABLE) - if(NOT DEFINED "${VARIABLE}") + if(NOT DEFINED "${VARIABLE}" OR "x${${VARIABLE}}" STREQUAL "x${VARIABLE}") set(CMAKE_CONFIGURABLE_FILE_CONTENT "/* */\n") set(MACRO_CHECK_SYMBOL_EXISTS_FLAGS ${CMAKE_REQUIRED_FLAGS}) if(CMAKE_REQUIRED_LIBRARIES) |