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CheckSymbolExists: Add examples for check_symbol_exists

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Add examples in `CheckCXXSymbolExists` too.

Co-Author: Brad King <brad.king@kitware.com>
This commit is contained in:
Hong Xu 2019-07-07 15:59:47 -07:00 committed by Brad King
parent cafaa5883a
commit bf2244681b
2 changed files with 22 additions and 0 deletions
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11
Modules/CheckCXXSymbolExists.cmake
View File

@ -44,6 +44,17 @@ the way the check is run:
command. See policy :policy:`CMP0075`.
``CMAKE_REQUIRED_QUIET``
execute quietly without messages.
For example:
.. code-block:: cmake
include(CheckCXXSymbolExists)
# Check for macro SEEK_SET
check_cxx_symbol_exists(SEEK_SET "cstdio" HAVE_SEEK_SET)
# Check for function std::fopen
check_cxx_symbol_exists(std::fopen "cstdio" HAVE_STD_FOPEN)
#]=======================================================================]
include_guard(GLOBAL)

11
Modules/CheckSymbolExists.cmake
View File

@ -45,6 +45,17 @@ the way the check is run:
command. See policy :policy:`CMP0075`.
``CMAKE_REQUIRED_QUIET``
execute quietly without messages.
For example:
.. code-block:: cmake
include(CheckSymbolExists)
# Check for macro SEEK_SET
check_symbol_exists(SEEK_SET "stdio.h" HAVE_SEEK_SET)
# Check for function fopen
check_symbol_exists(fopen "stdio.h" HAVE_FOPEN)
#]=======================================================================]
include_guard(GLOBAL)