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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
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.
============================================================================*/
#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,
cmExecutionStatus &status);
/**
* 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"
" [COPY_FILE <filename> )\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. If COPY_FILE is used, the compiled file will be "
"copied to the given file.\n"
"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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