<div dir="ltr">No.<div>CMake tracks each source file name exactly once. If you set properties on it, it will be treated that way always. Have to make a copy of the source to cpp...</div><div><br>copies to cmake_binary_dir/<source name> </div><div>plusplus_file_dup is the resulting list <br></div><div>( <a href="https://github.com/d3x0r/SACK/blob/master/CMakeLists.txt#L655">https://github.com/d3x0r/SACK/blob/master/CMakeLists.txt#L655</a> )</div><div><br></div><div>(really this is just for headers... src/csrc.h should be ${binary}/src/csrc.h in target too because #include "crsc.h"</div><div><br></div><div><div>FOREACH(SOURCE ${PLUSPLUS_FILES_TO_COPY})</div><div> if( ${SOURCE} MATCHES "${SOURCES_ROOT}(.*)$" )</div><div> set( BASENAME ${CMAKE_MATCH_1} )</div><div> set( plusplus_file_dup ${plusplus_file_dup} ${CMAKE_BINARY_DIR}/${BASENAME} )</div><div> add_custom_command( OUTPUT ${CMAKE_BINARY_DIR}/${BASENAME}</div><div> DEPENDS ${SOURCE}</div><div> COMMAND ${CMAKE_COMMAND} -E copy_if_different ${SOURCE} ${CMAKE_BINARY_DIR}/${BASENAME}</div><div> #COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_BINARY_DIR}/${BASENAME}</div><div> )</div><div> else()</div><div> endif()</div><div>ENDFOREACH(SOURCE)</div></div><div><br></div><div><br></div><div>---------------------</div><div>( <a href="https://github.com/d3x0r/SACK/blob/master/CMakeLists.txt#L672">https://github.com/d3x0r/SACK/blob/master/CMakeLists.txt#L672</a> )</div><div>THis make s abetter copy routine; it tests to see the type of header(file) and possible substitutions... still kinda some debugging coments (#) in there... this adds it as a rule, so it only generates the target source if the source is referenced. therefore also onlly when those C files change do new copies get made.</div><div><br></div><div><div>macro( COPY_CPLUSPLUS FILE_LIST )</div><div>FOREACH(SOURCE ${ARGN} )</div><div> if( ${SOURCE} MATCHES "${SACK_BASE}/(.*)\\.c$" )</div><div> set( FILEOK 1 )</div><div> set( BASENAME ${CMAKE_MATCH_1} )</div><div> set( FILEEXT .cpp )</div><div> elseif( ${SOURCE} MATCHES "${SACK_BASE}/(.*)\\.h$" )</div><div> set( FILEOK 1 )</div><div> set( BASENAME ${CMAKE_MATCH_1} )</div><div> set( FILEEXT .h )</div><div> elseif( ${SOURCE} MATCHES "(.*)\\.c$" )</div><div> set( FILEOK 1 )</div><div> set( BASENAME ${CMAKE_MATCH_1} )</div><div> set( FILEEXT .cpp )</div><div> elseif( ${SOURCE} MATCHES "(.*)\\.h$" )</div><div> set( FILEOK 1 )</div><div> set( BASENAME ${CMAKE_MATCH_1} )</div><div> set( FILEEXT .h )</div><div> else()</div><div> set( FILEOK 0 )</div><div> set( BASENAME "" )</div><div> endif()</div><div><br></div><div> if( FILEOK )</div><div> get_source_file_property(SOURCE_FOLDER ${SOURCE} FOLDER)</div><div><br></div><div> if( ${SOURCE} MATCHES "^${PROJECT_SOURCE_DIR}.*" )</div><div> if( NOT ${SOURCE_FOLDER} MATCHES "NOTFOUND" )</div><div> #message( "err folder : ${SOURCE_FOLDER} " )</div><div> SOURCE_GROUP( ${SOURCE_FOLDER} FILES ${SOURCE} )</div><div> SOURCE_GROUP( ${SOURCE_FOLDER} FILES ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT} )</div><div> endif()</div><div> add_custom_command( OUTPUT ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT}</div><div> DEPENDS ${SOURCE}</div><div> COMMAND ${CMAKE_COMMAND} -E copy_if_different ${SOURCE} ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT}</div><div> #COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT}</div><div> )</div><div> #EXECUTE_PROCESS(COMMAND cmake -E copy_if_different ${SOURCE} ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT} )</div><div><br></div><div> else( ${SOURCE} MATCHES "^${PROJECT_SOURCE_DIR}.*" )</div><div> if( NOT ${SOURCE_FOLDER} MATCHES "NOTFOUND" )</div><div> #message( "err folder : ${SOURCE_FOLDER} " )</div><div> SOURCE_GROUP( ${SOURCE_FOLDER} FILES ${PROJECT_SOURCE_DIR}/${SOURCE} )</div><div> SOURCE_GROUP( ${SOURCE_FOLDER} FILES ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT} )</div><div> endif()</div><div> add_custom_command( OUTPUT ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT}</div><div> DEPENDS ${PROJECT_SOURCE_DIR}/${SOURCE}</div><div> COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PROJECT_SOURCE_DIR}/${SOURCE} ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT}</div><div> #COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT}</div><div> )</div><div> #EXECUTE_PROCESS(COMMAND cmake -E copy_if_different ${PROJECT_SOURCE_DIR}/${SOURCE} ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT} )</div><div> #message( "LIB2_SOURCE2 : ${BASENAME} ${SOURCE}" )</div><div> endif()</div><div> set( ${FILE_LIST} ${${FILE_LIST}} ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT} )</div><div> #set( cplusplus_sources ${cplusplus_sources} ${CMAKE_BINARY_DIR}/${BASENAME}${FILEEXT} )</div><div> else()</div><div> #message( "NOT THING ${SOURCE}" )</div><div> endif()</div><div>ENDFOREACH(SOURCE)</div><div>endmacro( COPY_CPLUSPLUS )</div></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jan 17, 2018 at 10:05 AM, Jimi Damon <span dir="ltr"><<a href="mailto:jdamon@accesio.com" target="_blank">jdamon@accesio.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi,<div><br></div><div>I want to use Gtest for some unit tests on a number of the C functions that comprise my C executable. However, Gtest ( And gMock ) are C++ testing frameworks. </div><div><br></div><div>What I would like to have is a project for my exe and then a separate project for my C++ library and be able to change the source properties to use the language CXX just before compiling.</div><div><br></div><div>The problem I'm having is that CMake uses the CXX compiler for the C files.</div><div><br></div><div><br></div><div>Here's what I would like to have</div><div><br></div><div>project(cexe)</div><div>set(SOURCES foo.c bar.c )</div><div><div>add_executable( cexe ${SOURCES} )</div></div><div><br></div><div>project(cpplib)</div><div><div>set_source_files_properties(${<wbr>SOURCES} PROPERTIES LANGUAGE CXX )</div></div><div><div>add_library( cpplib SHARED ${SOURCES} )</div></div><div><br></div><div><br></div><div><br></div><div>Is there a way to do this ? </div><div><br></div><div>Can target_compile_options set the compile type for a given target ? </div><div><br></div><div><br></div><div>In the past I've had to copy the .C files to some renamed .CPP equivalent and then compile off of that. </div><div><br></div><div>I'm hoping that enough new functionality has been added to Cmake to allow separation between compiles.</div><div><br></div><div><br></div><div>Thanks,</div><span class="HOEnZb"><font color="#888888"><div><br></div><div><br></div><div><br></div><div><div><br></div>-- <br><div class="m_-1580327637643654833gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><br><span></span><table><tbody><tr><td style="vertical-align:top;width:431px"><div style="font-family:Verdana,"Lucida Sans Unicode","Lucida Sans","DejaVu Sans",sans-serif;color:rgb(0,0,0);width:375px"> <small>
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