summaryrefslogtreecommitdiff
path: root/share/cmake-3.10/Modules/CheckCXXSymbolExists.cmake
diff options
context:
space:
mode:
Diffstat (limited to 'share/cmake-3.10/Modules/CheckCXXSymbolExists.cmake')
-rw-r--r--share/cmake-3.10/Modules/CheckCXXSymbolExists.cmake39
1 files changed, 39 insertions, 0 deletions
diff --git a/share/cmake-3.10/Modules/CheckCXXSymbolExists.cmake b/share/cmake-3.10/Modules/CheckCXXSymbolExists.cmake
new file mode 100644
index 0000000..8552154
--- /dev/null
+++ b/share/cmake-3.10/Modules/CheckCXXSymbolExists.cmake
@@ -0,0 +1,39 @@
+# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+#.rst:
+# CheckCXXSymbolExists
+# --------------------
+#
+# Check if a symbol exists as a function, variable, or macro in C++
+#
+# CHECK_CXX_SYMBOL_EXISTS(<symbol> <files> <variable>)
+#
+# Check that the <symbol> is available after including given header
+# <files> and store the result in a <variable>. Specify the list of
+# files in one argument as a semicolon-separated list.
+# CHECK_CXX_SYMBOL_EXISTS() can be used to check in C++ files, as
+# opposed to CHECK_SYMBOL_EXISTS(), which works only for C.
+#
+# If the header files define the symbol as a macro it is considered
+# available and assumed to work. If the header files declare the symbol
+# as a function or variable then the symbol must also be available for
+# linking. If the symbol is a type or enum value it will not be
+# recognized (consider using CheckTypeSize or CheckCSourceCompiles).
+#
+# 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
+
+include(CheckSymbolExists)
+
+macro(CHECK_CXX_SYMBOL_EXISTS SYMBOL FILES VARIABLE)
+ __CHECK_SYMBOL_EXISTS_IMPL("${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.cxx" "${SYMBOL}" "${FILES}" "${VARIABLE}" )
+endmacro()