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-rw-r--r--Modules/CheckCXXSourceCompiles.cmake63
1 files changed, 35 insertions, 28 deletions
diff --git a/Modules/CheckCXXSourceCompiles.cmake b/Modules/CheckCXXSourceCompiles.cmake
index 734c0839b..e54d09e61 100644
--- a/Modules/CheckCXXSourceCompiles.cmake
+++ b/Modules/CheckCXXSourceCompiles.cmake
@@ -1,33 +1,34 @@
-# - Check if given C++ source compiles and links into an executable
+# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+#.rst:
+# CheckCXXSourceCompiles
+# ----------------------
+#
+# Check if given C++ source compiles and links into an executable
+#
# CHECK_CXX_SOURCE_COMPILES(<code> <var> [FAIL_REGEX <fail-regex>])
-# <code> - source code to try to compile, must define 'main'
-# <var> - variable to store whether the source code compiled
-# <fail-regex> - fail if test output matches this regex
-# The following variables may be set before calling this macro to
-# modify the way the check is run:
#
-# CMAKE_REQUIRED_FLAGS = string of compile command line flags
-# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
-# CMAKE_REQUIRED_INCLUDES = list of include directories
-# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
-
-#=============================================================================
-# Copyright 2005-2009 Kitware, Inc.
+# ::
#
-# Distributed under the OSI-approved BSD License (the "License");
-# see accompanying file Copyright.txt for details.
+# <code> - source code to try to compile, must define 'main'
+# <var> - variable to store whether the source code compiled
+# Will be created as an internal cache variable.
+# <fail-regex> - fail if test output matches this regex
#
-# This software is distributed WITHOUT ANY WARRANTY; without even the
-# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-# See the License for more information.
-#=============================================================================
-# (To distribute this file outside of CMake, substitute the full
-# License text for the above reference.)
-
-
+# The following variables may be set before calling this macro to modify
+# the way the check is run:
+#
+# ::
+#
+# CMAKE_REQUIRED_FLAGS = string of compile command line flags
+# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
+# CMAKE_REQUIRED_INCLUDES = list of include directories
+# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
+# CMAKE_REQUIRED_QUIET = execute quietly without messages
macro(CHECK_CXX_SOURCE_COMPILES SOURCE VAR)
- if("${VAR}" MATCHES "^${VAR}$")
+ if(NOT DEFINED "${VAR}")
set(_FAIL_REGEX)
set(_key)
foreach(arg ${ARGN})
@@ -57,7 +58,9 @@ macro(CHECK_CXX_SOURCE_COMPILES SOURCE VAR)
file(WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.cxx"
"${SOURCE}\n")
- message(STATUS "Performing Test ${VAR}")
+ if(NOT CMAKE_REQUIRED_QUIET)
+ message(STATUS "Performing Test ${VAR}")
+ endif()
try_compile(${VAR}
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.cxx
@@ -75,13 +78,17 @@ macro(CHECK_CXX_SOURCE_COMPILES SOURCE VAR)
if(${VAR})
set(${VAR} 1 CACHE INTERNAL "Test ${VAR}")
- message(STATUS "Performing Test ${VAR} - Success")
+ if(NOT CMAKE_REQUIRED_QUIET)
+ message(STATUS "Performing Test ${VAR} - Success")
+ endif()
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
- "Performing C++ SOURCE FILE Test ${VAR} succeded with the following output:\n"
+ "Performing C++ SOURCE FILE Test ${VAR} succeeded with the following output:\n"
"${OUTPUT}\n"
"Source file was:\n${SOURCE}\n")
else()
- message(STATUS "Performing Test ${VAR} - Failed")
+ if(NOT CMAKE_REQUIRED_QUIET)
+ message(STATUS "Performing Test ${VAR} - Failed")
+ endif()
set(${VAR} "" CACHE INTERNAL "Test ${VAR}")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Performing C++ SOURCE FILE Test ${VAR} failed with the following output:\n"