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Problem: CMake rebuilds everything twice

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Solution: build all the objects separately before the link step, to
avoid rebuilding when doing both static and shared builds
This commit is contained in:
Luca Boccassi 2017-11-18 13:46:49 +00:00
parent 5264d49eab
commit 0298d037d0
2 changed files with 16 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
CMakeLists.txt
View File

@ -575,8 +575,6 @@ set (cxx-sources
gather.cpp
zap_client.cpp)
set (rc-sources version.rc)
if (MINGW)
# Generate the right type when using -m32 or -m64
macro (set_rc_arch rc_target)
@ -643,10 +641,7 @@ foreach (source ${cxx-sources})
list (APPEND sources ${CMAKE_CURRENT_SOURCE_DIR}/src/${source})
endforeach ()
foreach (source ${rc-sources})
list (APPEND sources ${CMAKE_CURRENT_BINARY_DIR}/${source})
configure_file (${CMAKE_CURRENT_SOURCE_DIR}/src/${source}.in ${CMAKE_CURRENT_BINARY_DIR}/${source})
endforeach ()
configure_file (${CMAKE_CURRENT_SOURCE_DIR}/src/version.rc.in ${CMAKE_CURRENT_BINARY_DIR}/version.rc)
# Delete any src/platform.hpp left by configure
file (REMOVE ${CMAKE_CURRENT_SOURCE_DIR}/src/platform.hpp)
@ -751,12 +746,16 @@ if (BUILD_STATIC)
list(APPEND target_outputs "libzmq-static")
endif()
# avoid building everything twice for shared + static
add_library (objects OBJECT ${sources})
set_property(TARGET objects PROPERTY POSITION_INDEPENDENT_CODE ON)
if (MSVC)
# Suppress linker warnings caused by #ifdef omission
# of file content.
set( CMAKE_STATIC_LINKER_FLAGS /ignore:4221 )
if (BUILD_SHARED)
add_library (libzmq SHARED ${sources} ${public_headers} ${html-docs} ${readme-docs} ${CMAKE_CURRENT_BINARY_DIR}/NSIS.template.in)
add_library (libzmq SHARED $<TARGET_OBJECTS:objects> ${public_headers} ${html-docs} ${readme-docs} ${CMAKE_CURRENT_BINARY_DIR}/NSIS.template.in ${CMAKE_CURRENT_BINARY_DIR}/version.rc)
target_link_libraries (libzmq ${OPTIONAL_LIBRARIES})
set_target_properties (libzmq PROPERTIES
PUBLIC_HEADER "${public_headers}"
@ -769,7 +768,7 @@ if (MSVC)
endif()
if (BUILD_STATIC)
add_library (libzmq-static STATIC ${sources})
add_library (libzmq-static STATIC $<TARGET_OBJECTS:objects> ${CMAKE_CURRENT_BINARY_DIR}/version.rc)
set_target_properties (libzmq-static PROPERTIES
PUBLIC_HEADER "${public_headers}"
RELEASE_POSTFIX "${MSVC_TOOLSET}-mt-s-${ZMQ_VERSION_MAJOR}_${ZMQ_VERSION_MINOR}_${ZMQ_VERSION_PATCH}"
@ -780,7 +779,7 @@ if (MSVC)
endif()
else ()
if (BUILD_SHARED)
add_library (libzmq SHARED ${sources} ${public_headers} ${html-docs} ${readme-docs} ${zmq-pkgconfig})
add_library (libzmq SHARED $<TARGET_OBJECTS:objects> ${public_headers} ${html-docs} ${readme-docs} ${zmq-pkgconfig} ${CMAKE_CURRENT_BINARY_DIR}/version.rc)
target_link_libraries (libzmq ${OPTIONAL_LIBRARIES})
# NOTE: the SOVERSION MUST be the same as the one generated by libtool!
set_target_properties (libzmq PROPERTIES
@ -806,7 +805,7 @@ else ()
endif()
if (BUILD_STATIC)
add_library (libzmq-static STATIC ${sources} ${public_headers} ${html-docs} ${readme-docs} ${zmq-pkgconfig})
add_library (libzmq-static STATIC $<TARGET_OBJECTS:objects> ${public_headers} ${html-docs} ${readme-docs} ${zmq-pkgconfig} ${CMAKE_CURRENT_BINARY_DIR}/version.rc)
set_target_properties (libzmq-static PROPERTIES
PUBLIC_HEADER "${public_headers}"
COMPILE_DEFINITIONS "ZMQ_STATIC"
@ -815,7 +814,7 @@ else ()
endif()
endif ()
foreach (target ${target_outputs})
foreach (target ${target_outputs} objects)
target_include_directories (${target}
PUBLIC
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>

8
tests/CMakeLists.txt
View File

@ -145,8 +145,12 @@ if(WIN32)
endif()
# add library and include dirs for all targets
link_libraries(libzmq ${OPTIONAL_LIBRARIES})
include_directories("${CMAKE_SOURCE_DIR}/../include")
if (BUILD_SHARED)
link_libraries(libzmq ${OPTIONAL_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
else ()
link_libraries(libzmq-static ${OPTIONAL_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
endif ()
include_directories("${CMAKE_SOURCE_DIR}/../include" "${CMAKE_BINARY_DIR}")
foreach(test ${tests})
# target_sources not supported before CMake 3.1