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CheckIncludeFiles: improve warning for missing argument

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This commit is contained in:
David Adam
2017-11-24 15:50:14 +08:00
parent 1f1c2a9fdf
commit b31d5e1dfd
2 changed files with 7 additions and 5 deletions
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8
Modules/CheckIncludeFiles.cmake
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@@ -49,12 +49,14 @@ macro(CHECK_INCLUDE_FILES INCLUDE VARIABLE)
elseif(CMAKE_CXX_COMPILER_LOADED) elseif(CMAKE_CXX_COMPILER_LOADED)
set(_lang CXX) set(_lang CXX)
else() else()
message(FATAL_ERROR "CHECK_INCLUDE_FILES needs either C or CXX language enabled") message(FATAL_ERROR "CHECK_INCLUDE_FILES needs either C or CXX language enabled.\n")
endif() endif()
elseif("x${ARGN}" MATCHES "^xLANGUAGE;([a-zA-Z]+)$") elseif("x${ARGN}" MATCHES "^xLANGUAGE;([a-zA-Z]+)$")
set(_lang "${CMAKE_MATCH_1}") set(_lang "${CMAKE_MATCH_1}")
elseif("x${ARGN}" MATCHES "^xLANGUAGE$")
message(FATAL_ERROR "No languages listed for LANGUAGE option.\nSupported languages: C, CXX.\n")
else() else()
message(FATAL_ERROR "Unknown arguments:\n ${ARGN}\n") message(FATAL_ERROR "Unknown arguments:\n ${ARGN}\n")
endif() endif()
if(_lang STREQUAL "C") if(_lang STREQUAL "C")

4
Tests/RunCMake/CheckModules/CheckIncludeFilesMissingLanguage-stderr.txt
View File

@@ -1,7 +1,7 @@
CMake Error at .*/Modules/CheckIncludeFiles.cmake:[0-9]+. \(message\): CMake Error at .*/Modules/CheckIncludeFiles.cmake:[0-9]+. \(message\):
Unknown arguments: No languages listed for LANGUAGE option.
LANGUAGE Supported languages: C, CXX.
Call Stack \(most recent call first\): Call Stack \(most recent call first\):
CheckIncludeFilesMissingLanguage.cmake:[0-9]+ \(check_include_files\) CheckIncludeFilesMissingLanguage.cmake:[0-9]+ \(check_include_files\)