From e067c45bdeb5ce7fcef8b96d23244f1c6f51c763 Mon Sep 17 00:00:00 2001 From: Nicholas Corgan Date: Thu, 5 Mar 2015 08:28:29 -0800 Subject: cmake: restored compatibility with CMake 2.6 --- host/cmake/Modules/CheckCXXSymbolExistsCopy.cmake | 42 ++++++++++ host/cmake/Modules/CheckSymbolExistsCopy.cmake | 96 +++++++++++++++++++++++ host/cmake/Modules/UHDGlobalDefs.cmake | 2 +- 3 files changed, 139 insertions(+), 1 deletion(-) create mode 100644 host/cmake/Modules/CheckCXXSymbolExistsCopy.cmake create mode 100644 host/cmake/Modules/CheckSymbolExistsCopy.cmake (limited to 'host/cmake') diff --git a/host/cmake/Modules/CheckCXXSymbolExistsCopy.cmake b/host/cmake/Modules/CheckCXXSymbolExistsCopy.cmake new file mode 100644 index 000000000..d2cfac55e --- /dev/null +++ b/host/cmake/Modules/CheckCXXSymbolExistsCopy.cmake @@ -0,0 +1,42 @@ +# - Check if a symbol exists as a function, variable, or macro in C++ +# CHECK_CXX_SYMBOL_EXISTS( ) +# +# Check that the is available after including given header +# and store the result in a . 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 + +#============================================================================= +# Copyright 2003-2011 Kitware, Inc. +# +# 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. +#============================================================================= +# (To distribute this file outside of CMake, substitute the full +# License text for the above reference.) + +include(CheckSymbolExistsCopy) + +macro(CHECK_CXX_SYMBOL_EXISTS SYMBOL FILES VARIABLE) + _CHECK_SYMBOL_EXISTS("${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.cxx" "${SYMBOL}" "${FILES}" "${VARIABLE}" ) +endmacro() diff --git a/host/cmake/Modules/CheckSymbolExistsCopy.cmake b/host/cmake/Modules/CheckSymbolExistsCopy.cmake new file mode 100644 index 000000000..183b2bbe6 --- /dev/null +++ b/host/cmake/Modules/CheckSymbolExistsCopy.cmake @@ -0,0 +1,96 @@ +# - Check if a symbol exists as a function, variable, or macro +# CHECK_SYMBOL_EXISTS( ) +# +# Check that the is available after including given header +# and store the result in a . Specify the list +# of files in one argument as a semicolon-separated list. +# +# 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). +# If the check needs to be done in C++, consider using CHECK_CXX_SYMBOL_EXISTS(), +# which does the same as CHECK_SYMBOL_EXISTS(), but in C++. +# +# 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 2003-2011 Kitware, Inc. +# +# 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. +#============================================================================= +# (To distribute this file outside of CMake, substitute the full +# License text for the above reference.) + +MACRO(CHECK_SYMBOL_EXISTS SYMBOL FILES VARIABLE) + _CHECK_SYMBOL_EXISTS("${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.c" "${SYMBOL}" "${FILES}" "${VARIABLE}" ) +ENDMACRO(CHECK_SYMBOL_EXISTS) + +MACRO(_CHECK_SYMBOL_EXISTS SOURCEFILE SYMBOL FILES VARIABLE) + IF("${VARIABLE}" MATCHES "^${VARIABLE}$") + SET(CMAKE_CONFIGURABLE_FILE_CONTENT "/* */\n") + SET(MACRO_CHECK_SYMBOL_EXISTS_FLAGS ${CMAKE_REQUIRED_FLAGS}) + IF(CMAKE_REQUIRED_LIBRARIES) + SET(CHECK_SYMBOL_EXISTS_LIBS + "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}") + ELSE(CMAKE_REQUIRED_LIBRARIES) + SET(CHECK_SYMBOL_EXISTS_LIBS) + ENDIF(CMAKE_REQUIRED_LIBRARIES) + IF(CMAKE_REQUIRED_INCLUDES) + SET(CMAKE_SYMBOL_EXISTS_INCLUDES + "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}") + ELSE(CMAKE_REQUIRED_INCLUDES) + SET(CMAKE_SYMBOL_EXISTS_INCLUDES) + ENDIF(CMAKE_REQUIRED_INCLUDES) + FOREACH(FILE ${FILES}) + SET(CMAKE_CONFIGURABLE_FILE_CONTENT + "${CMAKE_CONFIGURABLE_FILE_CONTENT}#include <${FILE}>\n") + ENDFOREACH(FILE) + SET(CMAKE_CONFIGURABLE_FILE_CONTENT + "${CMAKE_CONFIGURABLE_FILE_CONTENT}\nvoid cmakeRequireSymbol(int dummy,...){(void)dummy;}\nint main()\n{\n#ifndef ${SYMBOL}\n cmakeRequireSymbol(0,&${SYMBOL});\n#endif\n return 0;\n}\n") + + CONFIGURE_FILE("${CMAKE_ROOT}/Modules/CMakeConfigurableFile.in" + "${SOURCEFILE}" @ONLY IMMEDIATE) + + MESSAGE(STATUS "Looking for ${SYMBOL}") + TRY_COMPILE(${VARIABLE} + ${CMAKE_BINARY_DIR} + "${SOURCEFILE}" + COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} + CMAKE_FLAGS + -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_SYMBOL_EXISTS_FLAGS} + "${CHECK_SYMBOL_EXISTS_LIBS}" + "${CMAKE_SYMBOL_EXISTS_INCLUDES}" + OUTPUT_VARIABLE OUTPUT) + IF(${VARIABLE}) + MESSAGE(STATUS "Looking for ${SYMBOL} - found") + SET(${VARIABLE} 1 CACHE INTERNAL "Have symbol ${SYMBOL}") + FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log + "Determining if the ${SYMBOL} " + "exist passed with the following output:\n" + "${OUTPUT}\nFile ${SOURCEFILE}:\n" + "${CMAKE_CONFIGURABLE_FILE_CONTENT}\n") + ELSE(${VARIABLE}) + MESSAGE(STATUS "Looking for ${SYMBOL} - not found.") + SET(${VARIABLE} "" CACHE INTERNAL "Have symbol ${SYMBOL}") + FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log + "Determining if the ${SYMBOL} " + "exist failed with the following output:\n" + "${OUTPUT}\nFile ${SOURCEFILE}:\n" + "${CMAKE_CONFIGURABLE_FILE_CONTENT}\n") + ENDIF(${VARIABLE}) + ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$") +ENDMACRO(_CHECK_SYMBOL_EXISTS) diff --git a/host/cmake/Modules/UHDGlobalDefs.cmake b/host/cmake/Modules/UHDGlobalDefs.cmake index 4edd03c6b..78a69d46d 100644 --- a/host/cmake/Modules/UHDGlobalDefs.cmake +++ b/host/cmake/Modules/UHDGlobalDefs.cmake @@ -17,7 +17,7 @@ # This file sets up all the stuff for the config.h file -INCLUDE(CheckCXXSymbolExists) +INCLUDE(CheckCXXSymbolExistsCopy) ## Check for std::log2 CHECK_CXX_SYMBOL_EXISTS("log2" "cmath" HAVE_LOG2) -- cgit v1.2.3