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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef cmTryCompileCommand_h
#define cmTryCompileCommand_h
#include "cmCoreTryCompile.h"
/** \class cmTryCompileCommand
* \brief Specifies where to install some files
*
* cmTryCompileCommand is used to test if soucre code can be compiled
*/
class cmTryCompileCommand : public cmCoreTryCompile
{
public:
/**
* This is a virtual constructor for the command.
*/
virtual cmCommand* Clone()
{
return new cmTryCompileCommand;
}
/**
* This is called when the command is first encountered in
* the CMakeLists.txt file.
*/
virtual bool InitialPass(std::vector<std::string> const& args);
/**
* The name of the command as specified in CMakeList.txt.
*/
virtual const char* GetName() { return "TRY_COMPILE";}
/**
* Succinct documentation.
*/
virtual const char* GetTerseDocumentation()
{
return "Try compiling some code.";
}
/**
* More documentation. */
virtual const char* GetFullDocumentation()
{
return
" TRY_COMPILE(RESULT_VAR bindir srcdir\n"
" projectName <targetname> <CMAKE_FLAGS <Flags>>\n"
" <OUTPUT_VARIABLE var>)\n"
"Try compiling a program. In this form, srcdir should contain a complete "
"CMake project with a CMakeLists.txt file and all sources. The bindir and "
"srcdir will not be deleted after this command is run. "
"If <target name> is specified then build just that target "
"otherwise the all or ALL_BUILD target is built.\n"
" TRY_COMPILE(RESULT_VAR bindir srcfile\n"
" <CMAKE_FLAGS <Flags>>\n"
" <COMPILE_DEFINITIONS <flags> ...>\n"
" <OUTPUT_VARIABLE var>)\n"
"Try compiling a srcfile. In this case, the user need only supply a "
"source file. CMake will create the appropriate CMakeLists.txt file "
"to build the source. "
"In this version all files in bindir/CMakeFiles/CMakeTmp, "
"will be cleaned automatically, for debugging a --debug-trycompile can "
"be passed to cmake to avoid the clean. Some extra flags that "
" can be included are, "
"INCLUDE_DIRECTORIES, LINK_DIRECTORIES, and LINK_LIBRARIES. "
"COMPILE_DEFINITIONS are -Ddefinition that will be passed to the "
"compile line. "
"TRY_COMPILE creates a CMakeList.txt "
"file on the fly that looks like this:\n"
" ADD_DEFINITIONS( <expanded COMPILE_DEFINITIONS from calling "
"cmake>)\n"
" INCLUDE_DIRECTORIES(${INCLUDE_DIRECTORIES})\n"
" LINK_DIRECTORIES(${LINK_DIRECTORIES})\n"
" ADD_EXECUTABLE(cmTryCompileExec sources)\n"
" TARGET_LINK_LIBRARIES(cmTryCompileExec ${LINK_LIBRARIES})\n"
"In both versions of the command, "
"if OUTPUT_VARIABLE is specified, then the "
"output from the build process is stored in the given variable. "
"Return the success or failure in "
"RESULT_VAR. CMAKE_FLAGS can be used to pass -DVAR:TYPE=VALUE flags "
"to the cmake that is run during the build. "
"";
}
cmTypeMacro(cmTryCompileCommand, cmCoreTryCompile);
};
#endif
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