cmake: How does one disable the MTD, NCP and RCP builds? #10685

sjlongland · 2024-09-09T00:43:11Z

sjlongland
Sep 9, 2024

Hi all,

I'm trying to port a project over from using the old autotools infrastructure for building OpenThread to cmake and I'm hitting an annoyance in the new build system…

The old system had options we needed to explicitly turn on: --enable-mtd, --enable-ftd, --enable-cli, --enable-ncp, --enable-radio.

For the project here, I only need --enable-ftd and --enable-cli.

I tried setting OT_NCP, OT_RCP and OT_MTD to OFF, but those components still build. Not harmful, but it does slow down the build unnecessarily. I also have OT_APP_NCP and OT_APP_RCP turned off. CMakeCache.txt shows they've been turned off, but it appears these parameters are being ignored.

How does one tell cmake to turn these off completely?

Irving-cl · 2024-09-09T02:06:24Z

Irving-cl
Sep 9, 2024
Collaborator

Hi @sjlongland,

Could you try this after removing the cache?

./script/cmake-build simulation -DOT_MTD=OFF -DOT_APP_NCP=OFF -DOT_APP_RCP=OFF

1 reply

sjlongland Sep 9, 2024
Author

Hi, I get the following output:

stuartl@LPA075:/tmp/openthread$ ./script/cmake-build simulation -DOT_MTD=OFF -DOT_APP_NCP=OFF -DOT_APP_RCP=OFF
+ OT_CMAKE_NINJA_TARGET=
++ pwd
+ readonly OT_SRCDIR=/tmp/openthread
+ OT_SRCDIR=/tmp/openthread
+ OT_PLATFORMS=('cc1352' 'cc2538' 'cc2650' 'cc2652' 'kw41z' 'qpg6095' 'samr21' 'simulation' 'posix')
+ readonly OT_PLATFORMS
+ OT_POSIX_SIM_COMMON_OPTIONS=('-DOT_BORDER_AGENT=ON' '-DOT_BORDER_ROUTER=ON' '-DOT_COAP=ON' '-DOT_COAP_OBSERVE=ON' '-DOT_COAPS=ON' '-DOT_COMMISSIONER=ON' '-DOT_CHANNEL_MANAGER=ON' '-DOT_CHANNEL_MONITOR=ON' '-DOT_CHILD_SUPERVISION=ON' '-DOT_DHCP6_CLIENT=ON' '-DOT_DHCP6_SERVER=ON' '-DOT_DIAGNOSTIC=ON' '-DOT_DNS_CLIENT=ON' '-DOT_ECDSA=ON' '-DOT_IP6_FRAGM=ON' '-DOT_JAM_DETECTION=ON' '-DOT_JOINER=ON' '-DOT_LEGACY=ON' '-DOT_MAC_FILTER=ON' '-DOT_MTD_NETDIAG=ON' '-DOT_REFERENCE_DEVICE=ON' '-DOT_SERVICE=ON' '-DOT_SNTP_CLIENT=ON' '-DOT_COVERAGE=ON' '-DOT_LOG_LEVEL_DYNAMIC=ON' '-DOT_COMPILE_WARNING_AS_ERROR=ON')
+ readonly OT_POSIX_SIM_COMMON_OPTIONS
+ main simulation -DOT_MTD=OFF -DOT_APP_NCP=OFF -DOT_APP_RCP=OFF
+ [[ 4 == 0 ]]
+ local platform=simulation
+ shift
+ local_options=()
+ local local_options
+ options=('-DOT_PLATFORM=simulation' '-DOT_SLAAC=ON')
+ local options
+ echo cc1352 cc2538 cc2650 cc2652 kw41z qpg6095 samr21 simulation posix
+ grep -wq simulation
+ case "${platform}" in
+ local_options=("-DOT_LINK_RAW=ON")
+ options+=("${OT_POSIX_SIM_COMMON_OPTIONS[@]}" "${local_options[@]}")
+ options+=("$@")
+ build simulation -DOT_PLATFORM=simulation -DOT_SLAAC=ON -DOT_BORDER_AGENT=ON -DOT_BORDER_ROUTER=ON -DOT_COAP=ON -DOT_COAP_OBSERVE=ON -DOT_COAPS=ON -DOT_COMMISSIONER=ON -DOT_CHANNEL_MANAGER=ON -DOT_CHANNEL_MONITOR=ON -DOT_CHILD_SUPERVISION=ON -DOT_DHCP6_CLIENT=ON -DOT_DHCP6_SERVER=ON -DOT_DIAGNOSTIC=ON -DOT_DNS_CLIENT=ON -DOT_ECDSA=ON -DOT_IP6_FRAGM=ON -DOT_JAM_DETECTION=ON -DOT_JOINER=ON -DOT_LEGACY=ON -DOT_MAC_FILTER=ON -DOT_MTD_NETDIAG=ON -DOT_REFERENCE_DEVICE=ON -DOT_SERVICE=ON -DOT_SNTP_CLIENT=ON -DOT_COVERAGE=ON -DOT_LOG_LEVEL_DYNAMIC=ON -DOT_COMPILE_WARNING_AS_ERROR=ON -DOT_LINK_RAW=ON -DOT_MTD=OFF -DOT_APP_NCP=OFF -DOT_APP_RCP=OFF
+ local platform=simulation
+ local builddir=build/simulation
+ shift
+ mkdir -p build/simulation
+ cd build/simulation
+ cmake -GNinja -DOT_PLATFORM=simulation -DOT_SLAAC=ON -DOT_BORDER_AGENT=ON -DOT_BORDER_ROUTER=ON -DOT_COAP=ON -DOT_COAP_OBSERVE=ON -DOT_COAPS=ON -DOT_COMMISSIONER=ON -DOT_CHANNEL_MANAGER=ON -DOT_CHANNEL_MONITOR=ON -DOT_CHILD_SUPERVISION=ON -DOT_DHCP6_CLIENT=ON -DOT_DHCP6_SERVER=ON -DOT_DIAGNOSTIC=ON -DOT_DNS_CLIENT=ON -DOT_ECDSA=ON -DOT_IP6_FRAGM=ON -DOT_JAM_DETECTION=ON -DOT_JOINER=ON -DOT_LEGACY=ON -DOT_MAC_FILTER=ON -DOT_MTD_NETDIAG=ON -DOT_REFERENCE_DEVICE=ON -DOT_SERVICE=ON -DOT_SNTP_CLIENT=ON -DOT_COVERAGE=ON -DOT_LOG_LEVEL_DYNAMIC=ON -DOT_COMPILE_WARNING_AS_ERROR=ON -DOT_LINK_RAW=ON -DOT_MTD=OFF -DOT_APP_NCP=OFF -DOT_APP_RCP=OFF /tmp/openthread
-- The C compiler identification is GNU 13.2.0
-- The CXX compiler identification is GNU 13.2.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Version: 0.01.00
-- Log output: APP
-- Project core config: "openthread-core-simulation-config.h"
CMake Deprecation Warning at third_party/mbedtls/repo/CMakeLists.txt:1 (cmake_minimum_required):
  Compatibility with CMake < 3.5 will be removed from a future version of
  CMake.

  Update the VERSION argument <min> value or use a ...<max> suffix to tell
  CMake that the project does not need compatibility with older versions.


CMake Warning (dev) at third_party/mbedtls/repo/CMakeLists.txt:5 (project):
  Policy CMP0048 is not set: project() command manages VERSION variables.
  Run "cmake --help-policy CMP0048" for policy details.  Use the cmake_policy
  command to set the policy and suppress this warning.

  The following variable(s) would be set to empty:

    PROJECT_VERSION
    PROJECT_VERSION_MAJOR
    PROJECT_VERSION_MINOR
    PROJECT_VERSION_PATCH
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at third_party/mbedtls/repo/CMakeLists.txt:49 (find_package):
  Policy CMP0148 is not set: The FindPythonInterp and FindPythonLibs modules
  are removed.  Run "cmake --help-policy CMP0148" for policy details.  Use
  the cmake_policy command to set the policy and suppress this warning.

This warning is for project developers.  Use -Wno-dev to suppress it.

-- Found PythonInterp: /usr/bin/python (found version "3.12.3") 
-- Found Perl: /usr/bin/perl (found version "5.38.2") 
-- Configuring done (0.5s)
-- Generating done (0.0s)
CMake Warning:
  Manually-specified variables were not used by the project:

    OT_MTD


-- Build files have been written to: /tmp/openthread/build/simulation
+ [[ -n '' ]]
+ ninja
[1/564] cd /tmp/openthread/build/simulation && echo -e OPENTHREAD_CONFIG_ASSERT_ENABLE=1"\n"OPENTHREAD_...URCE=1"\n"OPENTHREAD_EXAMPLES_SIMULATION=1"\n"OPENTHREAD_POSIX=1"\n"OPENTHREAD_CONFIG_NCP_UART_ENABLE=1
-e OPENTHREAD_CONFIG_ASSERT_ENABLE=1
OPENTHREAD_CONFIG_BORDER_AGENT_ENABLE=1
OPENTHREAD_CONFIG_BORDER_ROUTER_ENABLE=1
OPENTHREAD_CONFIG_ENABLE_BUILTIN_MBEDTLS=1
OPENTHREAD_CONFIG_ENABLE_BUILTIN_MBEDTLS_MANAGEMENT=1
OPENTHREAD_CONFIG_CHANNEL_MANAGER_ENABLE=1
OPENTHREAD_CONFIG_CHANNEL_MONITOR_ENABLE=1
OPENTHREAD_CONFIG_CHILD_SUPERVISION_ENABLE=1
OPENTHREAD_CONFIG_COAP_API_ENABLE=1
OPENTHREAD_CONFIG_COAP_SECURE_API_ENABLE=1
OPENTHREAD_CONFIG_COMMISSIONER_ENABLE=1
OPENTHREAD_CONFIG_DHCP6_CLIENT_ENABLE=1
OPENTHREAD_CONFIG_DHCP6_SERVER_ENABLE=1
OPENTHREAD_CONFIG_DIAG_ENABLE=1
OPENTHREAD_CONFIG_DNS_CLIENT_ENABLE=1
OPENTHREAD_CONFIG_ECDSA_ENABLE=1
OPENTHREAD_CONFIG_IP6_FRAGMENTATION_ENABLE=1
OPENTHREAD_CONFIG_JAM_DETECTION_ENABLE=1
OPENTHREAD_CONFIG_JOINER_ENABLE=1
OPENTHREAD_CONFIG_LEGACY_ENABLE=1
OPENTHREAD_CONFIG_LINK_RAW_ENABLE=1
OPENTHREAD_CONFIG_LOG_LEVEL_DYNAMIC_ENABLE=1
OPENTHREAD_CONFIG_MAC_FILTER_ENABLE=1
OPENTHREAD_CONFIG_TMF_NETWORK_DIAG_MTD_ENABLE=1
OPENTHREAD_CONFIG_REFERENCE_DEVICE_ENABLE=1
OPENTHREAD_CONFIG_TMF_NETDATA_SERVICE_ENABLE=1
OPENTHREAD_CONFIG_IP6_SLAAC_ENABLE=1
OPENTHREAD_CONFIG_SNTP_CLIENT_ENABLE=1
OPENTHREAD_ENABLE_COVERAGE=1
PACKAGE_NAME=OPENTHREAD
PACKAGE_VERSION=0.01.00
OPENTHREAD_CONFIG_THREAD_VERSION=OT_THREAD_VERSION_1_1
OPENTHREAD_CONFIG_LOG_OUTPUT=OPENTHREAD_CONFIG_LOG_OUTPUT_APP
OPENTHREAD_PROJECT_CORE_CONFIG_FILE=openthread-core-simulation-config.h
_BSD_SOURCE=1
_DEFAULT_SOURCE=1
OPENTHREAD_EXAMPLES_SIMULATION=1
OPENTHREAD_POSIX=1
OPENTHREAD_CONFIG_NCP_UART_ENABLE=1
[373/564] Building CXX object src/ncp/CMakeFiles/openthread-ncp-ftd.dir/ncp_uart.cpp.o
FAILED: src/ncp/CMakeFiles/openthread-ncp-ftd.dir/ncp_uart.cpp.o 
/usr/bin/c++ -DMBEDTLS_CONFIG_FILE=\"/tmp/openthread/build/simulation/third_party/mbedtls/openthread-mbedtls-config.h\" -DOPENTHREAD_CONFIG_ASSERT_ENABLE=1 -DOPENTHREAD_CONFIG_BORDER_AGENT_ENABLE=1 -DOPENTHREAD_CONFIG_BORDER_ROUTER_ENABLE=1 -DOPENTHREAD_CONFIG_CHANNEL_MANAGER_ENABLE=1 -DOPENTHREAD_CONFIG_CHANNEL_MONITOR_ENABLE=1 -DOPENTHREAD_CONFIG_CHILD_SUPERVISION_ENABLE=1 -DOPENTHREAD_CONFIG_COAP_API_ENABLE=1 -DOPENTHREAD_CONFIG_COAP_SECURE_API_ENABLE=1 -DOPENTHREAD_CONFIG_COMMISSIONER_ENABLE=1 -DOPENTHREAD_CONFIG_DHCP6_CLIENT_ENABLE=1 -DOPENTHREAD_CONFIG_DHCP6_SERVER_ENABLE=1 -DOPENTHREAD_CONFIG_DIAG_ENABLE=1 -DOPENTHREAD_CONFIG_DNS_CLIENT_ENABLE=1 -DOPENTHREAD_CONFIG_ECDSA_ENABLE=1 -DOPENTHREAD_CONFIG_ENABLE_BUILTIN_MBEDTLS=1 -DOPENTHREAD_CONFIG_ENABLE_BUILTIN_MBEDTLS_MANAGEMENT=1 -DOPENTHREAD_CONFIG_IP6_FRAGMENTATION_ENABLE=1 -DOPENTHREAD_CONFIG_IP6_SLAAC_ENABLE=1 -DOPENTHREAD_CONFIG_JAM_DETECTION_ENABLE=1 -DOPENTHREAD_CONFIG_JOINER_ENABLE=1 -DOPENTHREAD_CONFIG_LEGACY_ENABLE=1 -DOPENTHREAD_CONFIG_LINK_RAW_ENABLE=1 -DOPENTHREAD_CONFIG_LOG_LEVEL_DYNAMIC_ENABLE=1 -DOPENTHREAD_CONFIG_LOG_OUTPUT=OPENTHREAD_CONFIG_LOG_OUTPUT_APP -DOPENTHREAD_CONFIG_MAC_FILTER_ENABLE=1 -DOPENTHREAD_CONFIG_NCP_UART_ENABLE=1 -DOPENTHREAD_CONFIG_REFERENCE_DEVICE_ENABLE=1 -DOPENTHREAD_CONFIG_SNTP_CLIENT_ENABLE=1 -DOPENTHREAD_CONFIG_THREAD_VERSION=OT_THREAD_VERSION_1_1 -DOPENTHREAD_CONFIG_TMF_NETDATA_SERVICE_ENABLE=1 -DOPENTHREAD_CONFIG_TMF_NETWORK_DIAG_MTD_ENABLE=1 -DOPENTHREAD_ENABLE_COVERAGE=1 -DOPENTHREAD_EXAMPLES_SIMULATION=1 -DOPENTHREAD_FTD=1 -DOPENTHREAD_POSIX=1 -DOPENTHREAD_PROJECT_CORE_CONFIG_FILE=\"openthread-core-simulation-config.h\" -DOPENTHREAD_SPINEL_CONFIG_OPENTHREAD_MESSAGE_ENABLE=1 -DPACKAGE_NAME=\"OPENTHREAD\" -DPACKAGE_VERSION=\"0.01.00\" -D_BSD_SOURCE=1 -D_DEFAULT_SOURCE=1 -I/tmp/openthread/build/simulation/etc/cmake -I/tmp/openthread/etc/cmake -I/tmp/openthread/include -I/tmp/openthread/src -I/tmp/openthread/src/core -I/tmp/openthread/src/ncp -I/tmp/openthread/third_party/mbedtls/repo/include -I/tmp/openthread/examples/platforms/simulation -std=gnu++11 -Werror -pedantic-errors -Wall -Wextra -Wshadow -Wno-c++14-compat -fno-exceptions -g -O0 --coverage -MD -MT src/ncp/CMakeFiles/openthread-ncp-ftd.dir/ncp_uart.cpp.o -MF src/ncp/CMakeFiles/openthread-ncp-ftd.dir/ncp_uart.cpp.o.d -o src/ncp/CMakeFiles/openthread-ncp-ftd.dir/ncp_uart.cpp.o -c /tmp/openthread/src/ncp/ncp_uart.cpp
/tmp/openthread/src/ncp/ncp_uart.cpp: In constructor ‘ot::Ncp::NcpUart::NcpUart(ot::Instance*)’:
/tmp/openthread/src/ncp/ncp_uart.cpp:85:21: error: member ‘ot::Ncp::NcpUart::mUartBuffer’ is used uninitialized [-Werror=uninitialized]
   85 |     , mFrameEncoder(mUartBuffer)
      |                     ^~~~~~~~~~~
/tmp/openthread/src/ncp/ncp_uart.cpp: In member function ‘void ot::Ncp::NcpUart::EncodeAndSendToUart()’:
/tmp/openthread/src/ncp/ncp_uart.cpp:161:23: error: this statement may fall through [-Werror=implicit-fallthrough=]
  161 |                 mByte = txFrameBuffer.OutFrameReadByte();
      |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/tmp/openthread/src/ncp/ncp_uart.cpp:163:13: note: here
  163 |             case kEncodingFrame:
      |             ^~~~
cc1plus: all warnings being treated as errors
[378/564] Building CXX object src/ncp/CMakeFiles/openthread-ncp-mtd.dir/ncp_uart.cpp.o
FAILED: src/ncp/CMakeFiles/openthread-ncp-mtd.dir/ncp_uart.cpp.o 
/usr/bin/c++ -DMBEDTLS_CONFIG_FILE=\"/tmp/openthread/build/simulation/third_party/mbedtls/openthread-mbedtls-config.h\" -DOPENTHREAD_CONFIG_ASSERT_ENABLE=1 -DOPENTHREAD_CONFIG_BORDER_AGENT_ENABLE=1 -DOPENTHREAD_CONFIG_BORDER_ROUTER_ENABLE=1 -DOPENTHREAD_CONFIG_CHANNEL_MANAGER_ENABLE=1 -DOPENTHREAD_CONFIG_CHANNEL_MONITOR_ENABLE=1 -DOPENTHREAD_CONFIG_CHILD_SUPERVISION_ENABLE=1 -DOPENTHREAD_CONFIG_COAP_API_ENABLE=1 -DOPENTHREAD_CONFIG_COAP_SECURE_API_ENABLE=1 -DOPENTHREAD_CONFIG_COMMISSIONER_ENABLE=1 -DOPENTHREAD_CONFIG_DHCP6_CLIENT_ENABLE=1 -DOPENTHREAD_CONFIG_DHCP6_SERVER_ENABLE=1 -DOPENTHREAD_CONFIG_DIAG_ENABLE=1 -DOPENTHREAD_CONFIG_DNS_CLIENT_ENABLE=1 -DOPENTHREAD_CONFIG_ECDSA_ENABLE=1 -DOPENTHREAD_CONFIG_ENABLE_BUILTIN_MBEDTLS=1 -DOPENTHREAD_CONFIG_ENABLE_BUILTIN_MBEDTLS_MANAGEMENT=1 -DOPENTHREAD_CONFIG_IP6_FRAGMENTATION_ENABLE=1 -DOPENTHREAD_CONFIG_IP6_SLAAC_ENABLE=1 -DOPENTHREAD_CONFIG_JAM_DETECTION_ENABLE=1 -DOPENTHREAD_CONFIG_JOINER_ENABLE=1 -DOPENTHREAD_CONFIG_LEGACY_ENABLE=1 -DOPENTHREAD_CONFIG_LINK_RAW_ENABLE=1 -DOPENTHREAD_CONFIG_LOG_LEVEL_DYNAMIC_ENABLE=1 -DOPENTHREAD_CONFIG_LOG_OUTPUT=OPENTHREAD_CONFIG_LOG_OUTPUT_APP -DOPENTHREAD_CONFIG_MAC_FILTER_ENABLE=1 -DOPENTHREAD_CONFIG_NCP_UART_ENABLE=1 -DOPENTHREAD_CONFIG_REFERENCE_DEVICE_ENABLE=1 -DOPENTHREAD_CONFIG_SNTP_CLIENT_ENABLE=1 -DOPENTHREAD_CONFIG_THREAD_VERSION=OT_THREAD_VERSION_1_1 -DOPENTHREAD_CONFIG_TMF_NETDATA_SERVICE_ENABLE=1 -DOPENTHREAD_CONFIG_TMF_NETWORK_DIAG_MTD_ENABLE=1 -DOPENTHREAD_ENABLE_COVERAGE=1 -DOPENTHREAD_EXAMPLES_SIMULATION=1 -DOPENTHREAD_MTD=1 -DOPENTHREAD_POSIX=1 -DOPENTHREAD_PROJECT_CORE_CONFIG_FILE=\"openthread-core-simulation-config.h\" -DOPENTHREAD_SPINEL_CONFIG_OPENTHREAD_MESSAGE_ENABLE=1 -DPACKAGE_NAME=\"OPENTHREAD\" -DPACKAGE_VERSION=\"0.01.00\" -D_BSD_SOURCE=1 -D_DEFAULT_SOURCE=1 -I/tmp/openthread/build/simulation/etc/cmake -I/tmp/openthread/etc/cmake -I/tmp/openthread/include -I/tmp/openthread/src -I/tmp/openthread/src/core -I/tmp/openthread/src/ncp -I/tmp/openthread/third_party/mbedtls/repo/include -I/tmp/openthread/examples/platforms/simulation -std=gnu++11 -Werror -pedantic-errors -Wall -Wextra -Wshadow -Wno-c++14-compat -fno-exceptions -g -O0 --coverage -MD -MT src/ncp/CMakeFiles/openthread-ncp-mtd.dir/ncp_uart.cpp.o -MF src/ncp/CMakeFiles/openthread-ncp-mtd.dir/ncp_uart.cpp.o.d -o src/ncp/CMakeFiles/openthread-ncp-mtd.dir/ncp_uart.cpp.o -c /tmp/openthread/src/ncp/ncp_uart.cpp
/tmp/openthread/src/ncp/ncp_uart.cpp: In constructor ‘ot::Ncp::NcpUart::NcpUart(ot::Instance*)’:
/tmp/openthread/src/ncp/ncp_uart.cpp:85:21: error: member ‘ot::Ncp::NcpUart::mUartBuffer’ is used uninitialized [-Werror=uninitialized]
   85 |     , mFrameEncoder(mUartBuffer)
      |                     ^~~~~~~~~~~
/tmp/openthread/src/ncp/ncp_uart.cpp: In member function ‘void ot::Ncp::NcpUart::EncodeAndSendToUart()’:
/tmp/openthread/src/ncp/ncp_uart.cpp:161:23: error: this statement may fall through [-Werror=implicit-fallthrough=]
  161 |                 mByte = txFrameBuffer.OutFrameReadByte();
      |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/tmp/openthread/src/ncp/ncp_uart.cpp:163:13: note: here
  163 |             case kEncodingFrame:
      |             ^~~~
cc1plus: all warnings being treated as errors
[386/564] Building CXX object src/ncp/CMakeFiles/openthread-ncp-mtd.dir/ncp_base_mtd.cpp.o
ninja: build stopped: subcommand failed.

Irving-cl · 2024-09-09T02:20:39Z

Irving-cl
Sep 9, 2024
Collaborator

@sjlongland

What's the version(commit) of your openthread? I just tried locally and it can work.

1 reply

sjlongland Sep 9, 2024
Author

It's quite old, commit 54b31928cf65803a9cd83c9f97061b64e465aaf7 (tag thread-reference-20200818).

We've normally restricted ourselves to the same versions used by the GRL Thread Test Harness. I'm not sure if that's been updated yet, if I update OpenThread, and that harness is not in-sync, it'll fail the tests.

I tried using the latest version, but found that it wouldn't build because there was no autotools support (it got removed last year). In the interests of changing only one thing at a time, I'm porting the project over to CMake first, ensuring it still builds… then I can look at bringing the OpenThread release up-to-date.

I guess the question here is, what build options should I be putting here to ensure that NCP/MTD/RCP code is disabled when I do make that second step?

abtink · 2024-09-09T03:16:01Z

abtink
Sep 9, 2024
Collaborator

@sjlongland, I think you can check the /etc/cmake/option.cmake source file (it defines most of OT CMake options). In particular:

option(OT_APP_CLI "enable CLI app" ON)
option(OT_APP_NCP "enable NCP app" ON)
option(OT_APP_RCP "enable RCP app" ON)

option(OT_FTD "enable FTD" ON)
option(OT_MTD "enable MTD" ON)
option(OT_RCP "enable RCP" ON)

As an example of how these are used to build different configs, I can suggest taking a look at tests/toranj/build.sh

1 reply

sjlongland Sep 9, 2024
Author

Okay, so setting these to OFF should have the desired effect, once I complete the CMake port and bump to a newer version of OpenThread, that should turn off the unwanted APIs.

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cmake: How does one disable the MTD, NCP and RCP builds? #10685

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