mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
324 lines
10 KiB
324 lines
10 KiB
# taken from http://www.vtk.org/Bug/view.php?id=1260 and slightly adjusted |
|
|
|
# - Try to find precompiled headers support for GCC 3.4 and 4.x |
|
# Once done this will define: |
|
# |
|
# Variable: |
|
# PCHSupport_FOUND |
|
# |
|
# Macro: |
|
# ADD_PRECOMPILED_HEADER _targetName _input _dowarn |
|
# ADD_PRECOMPILED_HEADER_TO_TARGET _targetName _input _pch_output_to_use _dowarn |
|
# ADD_NATIVE_PRECOMPILED_HEADER _targetName _input _dowarn |
|
# GET_NATIVE_PRECOMPILED_HEADER _targetName _input |
|
|
|
IF(CMAKE_COMPILER_IS_GNUCXX) |
|
|
|
EXEC_PROGRAM( |
|
${CMAKE_CXX_COMPILER} |
|
ARGS ${CMAKE_CXX_COMPILER_ARG1} -dumpversion |
|
OUTPUT_VARIABLE gcc_compiler_version) |
|
#MESSAGE("GCC Version: ${gcc_compiler_version}") |
|
IF(gcc_compiler_version MATCHES "4\\.[0,2-9]\\.[0-9]") |
|
SET(PCHSupport_FOUND TRUE) |
|
ENDIF() |
|
|
|
SET(_PCH_include_prefix "-I") |
|
|
|
ELSE() |
|
IF(WIN32) |
|
SET(PCHSupport_FOUND TRUE) # for experimental msvc support |
|
SET(_PCH_include_prefix "/I") |
|
ELSE() |
|
SET(PCHSupport_FOUND FALSE) |
|
ENDIF() |
|
ENDIF(CMAKE_COMPILER_IS_GNUCXX) |
|
|
|
MACRO(_PCH_GET_COMPILE_FLAGS _out_compile_flags) |
|
|
|
|
|
STRING(TOUPPER "CMAKE_CXX_FLAGS_${CMAKE_BUILD_TYPE}" _flags_var_name) |
|
SET(${_out_compile_flags} ${${_flags_var_name}} ) |
|
|
|
IF(CMAKE_COMPILER_IS_GNUCXX) |
|
|
|
GET_TARGET_PROPERTY(_targetType ${_PCH_current_target} TYPE) |
|
IF(${_targetType} STREQUAL SHARED_LIBRARY AND NOT WIN32) |
|
LIST(APPEND ${_out_compile_flags} "${${_out_compile_flags}} -fPIC") |
|
ENDIF() |
|
|
|
ELSE() |
|
## TODO ... ? or does it work out of the box |
|
ENDIF() |
|
|
|
GET_DIRECTORY_PROPERTY(DIRINC INCLUDE_DIRECTORIES ) |
|
FOREACH(item ${DIRINC}) |
|
LIST(APPEND ${_out_compile_flags} "${_PCH_include_prefix}${item}") |
|
ENDFOREACH(item) |
|
|
|
GET_DIRECTORY_PROPERTY(_directory_flags DEFINITIONS) |
|
GET_DIRECTORY_PROPERTY(_global_definitions DIRECTORY ${OPENCV_SOURCE_DIR} DEFINITIONS) |
|
#MESSAGE("_directory_flags ${_directory_flags} ${_global_definitions}" ) |
|
LIST(APPEND ${_out_compile_flags} ${_directory_flags}) |
|
LIST(APPEND ${_out_compile_flags} ${_global_definitions}) |
|
LIST(APPEND ${_out_compile_flags} ${CMAKE_CXX_FLAGS} ) |
|
|
|
SEPARATE_ARGUMENTS(${_out_compile_flags}) |
|
|
|
ENDMACRO(_PCH_GET_COMPILE_FLAGS) |
|
|
|
|
|
MACRO(_PCH_WRITE_PCHDEP_CXX _targetName _include_file _dephelp) |
|
|
|
SET(${_dephelp} ${CMAKE_CURRENT_BINARY_DIR}/${_targetName}_pch_dephelp.cxx) |
|
FILE(WRITE ${${_dephelp}} |
|
"#include \"${_include_file}\" |
|
int testfunction() |
|
{ |
|
return 0; |
|
} |
|
" |
|
) |
|
|
|
ENDMACRO(_PCH_WRITE_PCHDEP_CXX ) |
|
|
|
MACRO(_PCH_GET_COMPILE_COMMAND out_command _input _output) |
|
|
|
FILE(TO_NATIVE_PATH ${_input} _native_input) |
|
FILE(TO_NATIVE_PATH ${_output} _native_output) |
|
|
|
|
|
IF(CMAKE_COMPILER_IS_GNUCXX) |
|
IF(CMAKE_CXX_COMPILER_ARG1) |
|
# remove leading space in compiler argument |
|
STRING(REGEX REPLACE "^ +" "" pchsupport_compiler_cxx_arg1 ${CMAKE_CXX_COMPILER_ARG1}) |
|
|
|
SET(${out_command} |
|
${CMAKE_CXX_COMPILER} ${pchsupport_compiler_cxx_arg1} ${_compile_FLAGS} -x c++-header -o ${_output} ${_input} |
|
) |
|
ELSE(CMAKE_CXX_COMPILER_ARG1) |
|
SET(${out_command} |
|
${CMAKE_CXX_COMPILER} ${_compile_FLAGS} -x c++-header -o ${_output} ${_input} |
|
) |
|
ENDIF(CMAKE_CXX_COMPILER_ARG1) |
|
ELSE(CMAKE_COMPILER_IS_GNUCXX) |
|
|
|
SET(_dummy_str "#include <${_input}>") |
|
FILE(WRITE ${CMAKE_CURRENT_BINARY_DIR}/pch_dummy.cpp ${_dummy_str}) |
|
|
|
SET(${out_command} |
|
${CMAKE_CXX_COMPILER} ${_compile_FLAGS} /c /Fp${_native_output} /Yc${_native_input} pch_dummy.cpp |
|
) |
|
#/out:${_output} |
|
|
|
ENDIF(CMAKE_COMPILER_IS_GNUCXX) |
|
|
|
ENDMACRO(_PCH_GET_COMPILE_COMMAND ) |
|
|
|
|
|
|
|
MACRO(_PCH_GET_TARGET_COMPILE_FLAGS _cflags _header_name _pch_path _dowarn ) |
|
|
|
FILE(TO_NATIVE_PATH ${_pch_path} _native_pch_path) |
|
|
|
IF(CMAKE_COMPILER_IS_GNUCXX) |
|
# for use with distcc and gcc >4.0.1 if preprocessed files are accessible |
|
# on all remote machines set |
|
# PCH_ADDITIONAL_COMPILER_FLAGS to -fpch-preprocess |
|
# if you want warnings for invalid header files (which is very inconvenient |
|
# if you have different versions of the headers for different build types |
|
# you may set _pch_dowarn |
|
IF (_dowarn) |
|
SET(${_cflags} "${PCH_ADDITIONAL_COMPILER_FLAGS} -include ${CMAKE_CURRENT_BINARY_DIR}/${_header_name} -Winvalid-pch " ) |
|
ELSE (_dowarn) |
|
SET(${_cflags} "${PCH_ADDITIONAL_COMPILER_FLAGS} -include ${CMAKE_CURRENT_BINARY_DIR}/${_header_name} " ) |
|
ENDIF (_dowarn) |
|
ELSE(CMAKE_COMPILER_IS_GNUCXX) |
|
|
|
set(${_cflags} "/Fp${_native_pch_path} /Yu${_header_name}" ) |
|
|
|
ENDIF(CMAKE_COMPILER_IS_GNUCXX) |
|
|
|
ENDMACRO(_PCH_GET_TARGET_COMPILE_FLAGS ) |
|
|
|
MACRO(GET_PRECOMPILED_HEADER_OUTPUT _targetName _input _output) |
|
GET_FILENAME_COMPONENT(_name ${_input} NAME) |
|
GET_FILENAME_COMPONENT(_path ${_input} PATH) |
|
SET(_output "${CMAKE_CURRENT_BINARY_DIR}/${_name}.gch/${_targetName}_${CMAKE_BUILD_TYPE}.gch") |
|
ENDMACRO(GET_PRECOMPILED_HEADER_OUTPUT _targetName _input) |
|
|
|
|
|
MACRO(ADD_PRECOMPILED_HEADER_TO_TARGET _targetName _input _pch_output_to_use ) |
|
|
|
# to do: test whether compiler flags match between target _targetName |
|
# and _pch_output_to_use |
|
GET_FILENAME_COMPONENT(_name ${_input} NAME) |
|
|
|
IF( "${ARGN}" STREQUAL "0") |
|
SET(_dowarn 0) |
|
ELSE( "${ARGN}" STREQUAL "0") |
|
SET(_dowarn 1) |
|
ENDIF("${ARGN}" STREQUAL "0") |
|
|
|
|
|
_PCH_GET_TARGET_COMPILE_FLAGS(_target_cflags ${_name} ${_pch_output_to_use} ${_dowarn}) |
|
# MESSAGE("Add flags ${_target_cflags} to ${_targetName} " ) |
|
SET_TARGET_PROPERTIES(${_targetName} |
|
PROPERTIES |
|
COMPILE_FLAGS ${_target_cflags} |
|
) |
|
|
|
ADD_CUSTOM_TARGET(pch_Generate_${_targetName} |
|
DEPENDS ${_pch_output_to_use} |
|
) |
|
|
|
ADD_DEPENDENCIES(${_targetName} pch_Generate_${_targetName} ) |
|
|
|
ENDMACRO(ADD_PRECOMPILED_HEADER_TO_TARGET) |
|
|
|
MACRO(ADD_PRECOMPILED_HEADER _targetName _input) |
|
|
|
SET(_PCH_current_target ${_targetName}) |
|
|
|
IF(NOT CMAKE_BUILD_TYPE) |
|
MESSAGE(FATAL_ERROR |
|
"This is the ADD_PRECOMPILED_HEADER macro. " |
|
"You must set CMAKE_BUILD_TYPE!" |
|
) |
|
ENDIF(NOT CMAKE_BUILD_TYPE) |
|
|
|
IF( "${ARGN}" STREQUAL "0") |
|
SET(_dowarn 0) |
|
ELSE( "${ARGN}" STREQUAL "0") |
|
SET(_dowarn 1) |
|
ENDIF("${ARGN}" STREQUAL "0") |
|
|
|
|
|
GET_FILENAME_COMPONENT(_name ${_input} NAME) |
|
GET_FILENAME_COMPONENT(_path ${_input} PATH) |
|
GET_PRECOMPILED_HEADER_OUTPUT( ${_targetName} ${_input} _output) |
|
|
|
GET_FILENAME_COMPONENT(_outdir ${_output} PATH ) |
|
|
|
GET_TARGET_PROPERTY(_targetType ${_PCH_current_target} TYPE) |
|
_PCH_WRITE_PCHDEP_CXX(${_targetName} ${_input} _pch_dephelp_cxx) |
|
|
|
IF(${_targetType} STREQUAL SHARED_LIBRARY) |
|
ADD_LIBRARY(${_targetName}_pch_dephelp STATIC ${_pch_dephelp_cxx} ) |
|
ELSE(${_targetType} STREQUAL SHARED_LIBRARY) |
|
ADD_LIBRARY(${_targetName}_pch_dephelp STATIC ${_pch_dephelp_cxx}) |
|
ENDIF(${_targetType} STREQUAL SHARED_LIBRARY) |
|
|
|
set_target_properties(${_targetName}_pch_dephelp PROPERTIES |
|
DEBUG_POSTFIX "${OPENCV_DEBUG_POSTFIX}" |
|
ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib/" |
|
) |
|
|
|
|
|
FILE(MAKE_DIRECTORY ${_outdir}) |
|
|
|
|
|
_PCH_GET_COMPILE_FLAGS(_compile_FLAGS) |
|
|
|
#MESSAGE("_compile_FLAGS: ${_compile_FLAGS}") |
|
#message("COMMAND ${CMAKE_CXX_COMPILER} ${_compile_FLAGS} -x c++-header -o ${_output} ${_input}") |
|
SET_SOURCE_FILES_PROPERTIES(${CMAKE_CURRENT_BINARY_DIR}/${_name} PROPERTIES GENERATED 1) |
|
ADD_CUSTOM_COMMAND( |
|
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${_name} |
|
COMMAND ${CMAKE_COMMAND} -E copy ${_input} ${CMAKE_CURRENT_BINARY_DIR}/${_name} # ensure same directory! Required by gcc |
|
DEPENDS ${_input} |
|
) |
|
|
|
#message("_command ${_input} ${_output}") |
|
_PCH_GET_COMPILE_COMMAND(_command ${CMAKE_CURRENT_BINARY_DIR}/${_name} ${_output} ) |
|
|
|
#message(${_input} ) |
|
#message("_output ${_output}") |
|
|
|
ADD_CUSTOM_COMMAND( |
|
OUTPUT ${_output} |
|
COMMAND ${_command} |
|
DEPENDS ${_input} ${CMAKE_CURRENT_BINARY_DIR}/${_name} ${_targetName}_pch_dephelp |
|
) |
|
|
|
|
|
ADD_PRECOMPILED_HEADER_TO_TARGET(${_targetName} ${_input} ${_output} ${_dowarn}) |
|
ENDMACRO(ADD_PRECOMPILED_HEADER) |
|
|
|
|
|
# Generates the use of precompiled in a target, |
|
# without using depency targets (2 extra for each target) |
|
# Using Visual, must also add ${_targetName}_pch to sources |
|
# Not needed by Xcode |
|
|
|
MACRO(GET_NATIVE_PRECOMPILED_HEADER _targetName _input) |
|
|
|
if(CMAKE_GENERATOR MATCHES Visual*) |
|
|
|
SET(_dummy_str "#include \"${_input}\"\n" |
|
"// This is required to suppress LNK4221. Very annoying.\n" |
|
"void *g_${_targetName}Dummy = 0\;\n") |
|
|
|
# Use of cxx extension for generated files (as Qt does) |
|
SET(${_targetName}_pch ${CMAKE_CURRENT_BINARY_DIR}/${_targetName}_pch.cxx) |
|
if(EXISTS ${${_targetName}_pch}) |
|
# Check if contents is the same, if not rewrite |
|
# todo |
|
else(EXISTS ${${_targetName}_pch}) |
|
FILE(WRITE ${${_targetName}_pch} ${_dummy_str}) |
|
endif(EXISTS ${${_targetName}_pch}) |
|
endif(CMAKE_GENERATOR MATCHES Visual*) |
|
|
|
ENDMACRO(GET_NATIVE_PRECOMPILED_HEADER) |
|
|
|
|
|
MACRO(ADD_NATIVE_PRECOMPILED_HEADER _targetName _input) |
|
|
|
IF( "${ARGN}" STREQUAL "0") |
|
SET(_dowarn 0) |
|
ELSE( "${ARGN}" STREQUAL "0") |
|
SET(_dowarn 1) |
|
ENDIF("${ARGN}" STREQUAL "0") |
|
|
|
if(CMAKE_GENERATOR MATCHES Visual*) |
|
# Auto include the precompile (useful for moc processing, since the use of |
|
# precompiled is specified at the target level |
|
# and I don't want to specifiy /F- for each moc/res/ui generated files (using Qt) |
|
|
|
GET_TARGET_PROPERTY(oldProps ${_targetName} COMPILE_FLAGS) |
|
if (${oldProps} MATCHES NOTFOUND) |
|
SET(oldProps "") |
|
endif(${oldProps} MATCHES NOTFOUND) |
|
|
|
SET(newProperties "${oldProps} /Yu\"${_input}\" /FI\"${_input}\"") |
|
SET_TARGET_PROPERTIES(${_targetName} PROPERTIES COMPILE_FLAGS "${newProperties}") |
|
|
|
#also inlude ${oldProps} to have the same compile options |
|
SET_SOURCE_FILES_PROPERTIES(${${_targetName}_pch} PROPERTIES COMPILE_FLAGS "${oldProps} /Yc\"${_input}\"") |
|
|
|
else(CMAKE_GENERATOR MATCHES Visual*) |
|
|
|
if (CMAKE_GENERATOR MATCHES Xcode) |
|
# For Xcode, cmake needs my patch to process |
|
# GCC_PREFIX_HEADER and GCC_PRECOMPILE_PREFIX_HEADER as target properties |
|
|
|
GET_TARGET_PROPERTY(oldProps ${_targetName} COMPILE_FLAGS) |
|
if (${oldProps} MATCHES NOTFOUND) |
|
SET(oldProps "") |
|
endif(${oldProps} MATCHES NOTFOUND) |
|
|
|
# When buiding out of the tree, precompiled may not be located |
|
# Use full path instead. |
|
GET_FILENAME_COMPONENT(fullPath ${_input} ABSOLUTE) |
|
|
|
SET_TARGET_PROPERTIES(${_targetName} PROPERTIES XCODE_ATTRIBUTE_GCC_PREFIX_HEADER "${fullPath}") |
|
SET_TARGET_PROPERTIES(${_targetName} PROPERTIES XCODE_ATTRIBUTE_GCC_PRECOMPILE_PREFIX_HEADER "YES") |
|
|
|
else (CMAKE_GENERATOR MATCHES Xcode) |
|
|
|
#Fallback to the "old" precompiled suppport |
|
#ADD_PRECOMPILED_HEADER(${_targetName} ${_input} ${_dowarn}) |
|
endif(CMAKE_GENERATOR MATCHES Xcode) |
|
endif(CMAKE_GENERATOR MATCHES Visual*) |
|
|
|
ENDMACRO(ADD_NATIVE_PRECOMPILED_HEADER)
|
|
|