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0014447

CMake

public

2013-09-28 14:41

2016-06-10 14:31

Reporter

Veniamin Gvozdikov

Assigned To

Kitware Robot

Priority

high

Severity

feature

Reproducibility

always

Status

closed

Resolution

moved

Platform

OS Version

Product Version

Target Version

Fixed in Version

Summary

0014447: Support $<TARGET_OBJECT:obj> as DEPENDS in add_custom_command

Description

Hello,

I had a strange trouble with add DEPENDS in add_custom_command by $<TARGET_OBJECTS:obj> and I hacked that with set(cjson_obj_2 ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/cjson_objs.dir/lua_cjson.c.o) in real path to object. This is bad way for depends, please add support in new version.

set(cjson_obj)

add_library(cjson_objs OBJECT lua_cjson.c strbuf.c ${FPCONV_SOURCES})
set_target_properties(cjson_objs PROPERTIES POSITION_INDEPENDENT_CODE ON)
set(cjson_obj ${cjson_obj} $<TARGET_OBJECTS:cjson_objs>)

if(ENABLE_DTRACE AND DTRACE)
    message(STATUS "DTrace found and enabled")
    add_definitions(-DENABLE_DTRACE)
    set(D_FILE ${PROJECT_SOURCE_DIR}/cjson_dtrace)
    execute_process(
       COMMAND ${DTRACE} -h -s ${D_FILE}.d -o ${D_FILE}.h
    )
    if(${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD")
        set(cjson_obj_2 ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/cjson_objs.dir/lua_cjson.c.o)
        set(dtrace_obj ${CMAKE_CURRENT_BINARY_DIR}/dtrace.o)
        add_custom_command(OUTPUT ${dtrace_obj}
            COMMAND ${DTRACE} -G -s ${D_FILE}.d -o ${dtrace_obj} ${cjson_obj_2}
            DEPENDS ${cjson_obj_2}
        )
        set_source_files_properties(${dtrace_obj}
            PROPERTIES
            EXTERNAL_OBJECT true
            GENERATED true
        )
        set(cjson_obj ${cjson_obj} ${dtrace_obj})
        unset(cjson_obj_2)
        unset(dtrace_obj)
        unset(D_FILE)
    endif()
endif()

add_library(cjson MODULE ${cjson_obj})
set_target_properties(cjson PROPERTIES PREFIX "")
target_link_libraries(cjson ${_MODULE_LINK})

Steps To Reproduce

Try my example of cmake code.

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Notes
(0042379) Kitware Robot (administrator) 2016-06-10 14:29	Resolving issue as `moved`. This issue tracker is no longer used. Further discussion of this issue may take place in the current CMake Issues page linked in the banner at the top of this page.

Issue History
Date Modified	Username	Field	Change
2013-09-28 14:41	Veniamin Gvozdikov	New Issue
2016-06-10 14:29	Kitware Robot	Note Added: 0042379
2016-06-10 14:29	Kitware Robot	Status	new => resolved
2016-06-10 14:29	Kitware Robot	Resolution	open => moved
2016-06-10 14:29	Kitware Robot	Assigned To	=> Kitware Robot
2016-06-10 14:31	Kitware Robot	Status	resolved => closed