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-rw-r--r--cmake/CheckSharedFunctionExists.cmake4
1 files changed, 2 insertions, 2 deletions
diff --git a/cmake/CheckSharedFunctionExists.cmake b/cmake/CheckSharedFunctionExists.cmake
index 7975f233..c691fa9c 100644
--- a/cmake/CheckSharedFunctionExists.cmake
+++ b/cmake/CheckSharedFunctionExists.cmake
@@ -34,7 +34,7 @@
# License text for the above reference.)
MACRO(CHECK_SHARED_FUNCTION_EXISTS SYMBOL FILES LIBRARY LOCATION VARIABLE)
- IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
+ IF(NOT DEFINED "${VARIABLE}" OR "x${${VARIABLE}}" STREQUAL "x${VARIABLE}")
SET(CMAKE_CONFIGURABLE_FILE_CONTENT "/* */\n")
SET(MACRO_CHECK_SYMBOL_EXISTS_FLAGS ${CMAKE_REQUIRED_FLAGS})
IF(CMAKE_REQUIRED_LIBRARIES)
@@ -88,5 +88,5 @@ MACRO(CHECK_SHARED_FUNCTION_EXISTS SYMBOL FILES LIBRARY LOCATION VARIABLE)
"${OUTPUT}\nFile ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.c:\n"
"${CMAKE_CONFIGURABLE_FILE_CONTENT}\n")
ENDIF(${VARIABLE})
- ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$")
+ ENDIF(NOT DEFINED "${VARIABLE}" OR "x${${VARIABLE}}" STREQUAL "x${VARIABLE}")
ENDMACRO(CHECK_SHARED_FUNCTION_EXISTS)