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libwebsockets/lwsws/CMakeLists.txt

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cmakelist: Augean Stables refactor Establish a new distributed CMake architecture with CMake code related to a source directory moving to be in the subdir in its own CMakeLists.txt. In particular, there's now one in ./lib which calls through to ones further down the directory tree like ./lib/plat/xxx, ./lib/roles/xxx etc. This cuts the main CMakelists.txt from 98KB -> 33KB, about a 66% reduction, and it's much easier to maintain sub-CMakeLists.txt that are in the same directory as the sources they manage, and conceal all the details that that level. Child CMakelists.txt become responsible for: - include_directories() definition (this is not supported by CMake directly, it passes it back up via PARENT_SCOPE vars in helper macros) - Addition child CMakeLists.txt inclusion, for example toplevel -> role -> role subdir - Source file addition to the build - Dependent library path resolution... this is now a private thing in the child CMakeLists.txt, it just passes back any adaptations to include_directories() and the LIB_LIST without filling the parent namespace with the details
2020-05-22 16:47:40 +01:00
#
# libwebsockets - small server side websockets and web server implementation
#
# Copyright (C) 2010 - 2020 Andy Green <andy@warmcat.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
#
if (LWS_WITH_LWSWS)
list(APPEND LWSWS_SRCS
"main.c"
)
if (WIN32)
list(APPEND LWSWS_SRCS
${WIN32_HELPERS_PATH}/getopt.c
${WIN32_HELPERS_PATH}/getopt_long.c
${WIN32_HELPERS_PATH}/gettimeofday.c
)
list(APPEND LWSWS_HDR
${WIN32_HELPERS_PATH}/getopt.h
${WIN32_HELPERS_PATH}/gettimeofday.h
)
endif(WIN32)
source_group("Headers Private" FILES ${LWSWS_HDR})
source_group("Sources" FILES ${LWSWS_SRCS})
cmake: disable export visibility when building lws static This is complicated by the fact extern on a function declaration implies visibility... we have to make LWS_EXTERN empty when building static. And, setting target_compile_definitions() doesn't work inside macros, so it has to be set explicitly for the plugins. Checking the symbol status needs nm -C -D as per https://stackoverflow.com/questions/37934388/symbol-visibility-not-working-as-expected after this patch, libwebsockets.a shows no symbols when checked like that and the static-linked minimal examples only show -U for their other dynamic imports. In a handful of cases we use LWS_EXTERN on extern data declarations, those then need to change to explicit extern.
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add_executable(lwsws ${LWSWS_SRCS} ${LWSWS_HDR})
cmakelist: Augean Stables refactor Establish a new distributed CMake architecture with CMake code related to a source directory moving to be in the subdir in its own CMakeLists.txt. In particular, there's now one in ./lib which calls through to ones further down the directory tree like ./lib/plat/xxx, ./lib/roles/xxx etc. This cuts the main CMakelists.txt from 98KB -> 33KB, about a 66% reduction, and it's much easier to maintain sub-CMakeLists.txt that are in the same directory as the sources they manage, and conceal all the details that that level. Child CMakelists.txt become responsible for: - include_directories() definition (this is not supported by CMake directly, it passes it back up via PARENT_SCOPE vars in helper macros) - Addition child CMakeLists.txt inclusion, for example toplevel -> role -> role subdir - Source file addition to the build - Dependent library path resolution... this is now a private thing in the child CMakeLists.txt, it just passes back any adaptations to include_directories() and the LIB_LIST without filling the parent namespace with the details
2020-05-22 16:47:40 +01:00
static build: lwsws
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if (LWS_WITH_SHARED)
cmake: disable export visibility when building lws static This is complicated by the fact extern on a function declaration implies visibility... we have to make LWS_EXTERN empty when building static. And, setting target_compile_definitions() doesn't work inside macros, so it has to be set explicitly for the plugins. Checking the symbol status needs nm -C -D as per https://stackoverflow.com/questions/37934388/symbol-visibility-not-working-as-expected after this patch, libwebsockets.a shows no symbols when checked like that and the static-linked minimal examples only show -U for their other dynamic imports. In a handful of cases we use LWS_EXTERN on extern data declarations, those then need to change to explicit extern.
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target_link_libraries(lwsws websockets_shared ${LIB_LIST_AT_END})
add_dependencies(lwsws websockets_shared)
static build: lwsws
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else()
cmake: disable export visibility when building lws static This is complicated by the fact extern on a function declaration implies visibility... we have to make LWS_EXTERN empty when building static. And, setting target_compile_definitions() doesn't work inside macros, so it has to be set explicitly for the plugins. Checking the symbol status needs nm -C -D as per https://stackoverflow.com/questions/37934388/symbol-visibility-not-working-as-expected after this patch, libwebsockets.a shows no symbols when checked like that and the static-linked minimal examples only show -U for their other dynamic imports. In a handful of cases we use LWS_EXTERN on extern data declarations, those then need to change to explicit extern.
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target_link_libraries(lwsws websockets ${LIB_LIST_AT_END})
add_dependencies(lwsws websockets)
static build: lwsws
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endif()
cmake: disable export visibility when building lws static This is complicated by the fact extern on a function declaration implies visibility... we have to make LWS_EXTERN empty when building static. And, setting target_compile_definitions() doesn't work inside macros, so it has to be set explicitly for the plugins. Checking the symbol status needs nm -C -D as per https://stackoverflow.com/questions/37934388/symbol-visibility-not-working-as-expected after this patch, libwebsockets.a shows no symbols when checked like that and the static-linked minimal examples only show -U for their other dynamic imports. In a handful of cases we use LWS_EXTERN on extern data declarations, those then need to change to explicit extern.
2020-09-06 11:46:25 +01:00
target_include_directories(lwsws PRIVATE "${LWS_LIB_INCLUDES}" ${LWS_LIB_BUILD_INC_PATHS})
cmakelist: Augean Stables refactor Establish a new distributed CMake architecture with CMake code related to a source directory moving to be in the subdir in its own CMakeLists.txt. In particular, there's now one in ./lib which calls through to ones further down the directory tree like ./lib/plat/xxx, ./lib/roles/xxx etc. This cuts the main CMakelists.txt from 98KB -> 33KB, about a 66% reduction, and it's much easier to maintain sub-CMakeLists.txt that are in the same directory as the sources they manage, and conceal all the details that that level. Child CMakelists.txt become responsible for: - include_directories() definition (this is not supported by CMake directly, it passes it back up via PARENT_SCOPE vars in helper macros) - Addition child CMakeLists.txt inclusion, for example toplevel -> role -> role subdir - Source file addition to the build - Dependent library path resolution... this is now a private thing in the child CMakeLists.txt, it just passes back any adaptations to include_directories() and the LIB_LIST without filling the parent namespace with the details
2020-05-22 16:47:40 +01:00
# Set test app specific defines.
cmake: disable export visibility when building lws static This is complicated by the fact extern on a function declaration implies visibility... we have to make LWS_EXTERN empty when building static. And, setting target_compile_definitions() doesn't work inside macros, so it has to be set explicitly for the plugins. Checking the symbol status needs nm -C -D as per https://stackoverflow.com/questions/37934388/symbol-visibility-not-working-as-expected after this patch, libwebsockets.a shows no symbols when checked like that and the static-linked minimal examples only show -U for their other dynamic imports. In a handful of cases we use LWS_EXTERN on extern data declarations, those then need to change to explicit extern.
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set_property(TARGET lwsws
cmakelist: Augean Stables refactor Establish a new distributed CMake architecture with CMake code related to a source directory moving to be in the subdir in its own CMakeLists.txt. In particular, there's now one in ./lib which calls through to ones further down the directory tree like ./lib/plat/xxx, ./lib/roles/xxx etc. This cuts the main CMakelists.txt from 98KB -> 33KB, about a 66% reduction, and it's much easier to maintain sub-CMakeLists.txt that are in the same directory as the sources they manage, and conceal all the details that that level. Child CMakelists.txt become responsible for: - include_directories() definition (this is not supported by CMake directly, it passes it back up via PARENT_SCOPE vars in helper macros) - Addition child CMakeLists.txt inclusion, for example toplevel -> role -> role subdir - Source file addition to the build - Dependent library path resolution... this is now a private thing in the child CMakeLists.txt, it just passes back any adaptations to include_directories() and the LIB_LIST without filling the parent namespace with the details
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PROPERTY COMPILE_DEFINITIONS
INSTALL_DATADIR="${CMAKE_INSTALL_PREFIX}/share"
)
install(TARGETS lwsws
RUNTIME DESTINATION "${LWS_INSTALL_BIN_DIR}" COMPONENT lwsws )
cmake: disable export visibility when building lws static This is complicated by the fact extern on a function declaration implies visibility... we have to make LWS_EXTERN empty when building static. And, setting target_compile_definitions() doesn't work inside macros, so it has to be set explicitly for the plugins. Checking the symbol status needs nm -C -D as per https://stackoverflow.com/questions/37934388/symbol-visibility-not-working-as-expected after this patch, libwebsockets.a shows no symbols when checked like that and the static-linked minimal examples only show -U for their other dynamic imports. In a handful of cases we use LWS_EXTERN on extern data declarations, those then need to change to explicit extern.
2020-09-06 11:46:25 +01:00
target_compile_definitions(lwsws PRIVATE LWS_BUILDING_SHARED)
cmakelist: Augean Stables refactor Establish a new distributed CMake architecture with CMake code related to a source directory moving to be in the subdir in its own CMakeLists.txt. In particular, there's now one in ./lib which calls through to ones further down the directory tree like ./lib/plat/xxx, ./lib/roles/xxx etc. This cuts the main CMakelists.txt from 98KB -> 33KB, about a 66% reduction, and it's much easier to maintain sub-CMakeLists.txt that are in the same directory as the sources they manage, and conceal all the details that that level. Child CMakelists.txt become responsible for: - include_directories() definition (this is not supported by CMake directly, it passes it back up via PARENT_SCOPE vars in helper macros) - Addition child CMakeLists.txt inclusion, for example toplevel -> role -> role subdir - Source file addition to the build - Dependent library path resolution... this is now a private thing in the child CMakeLists.txt, it just passes back any adaptations to include_directories() and the LIB_LIST without filling the parent namespace with the details
2020-05-22 16:47:40 +01:00
endif (LWS_WITH_LWSWS)
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