Configure math.h lib with cmake on SDK Mesh

RE: Configure math.h lib with cmake on SDK Mesh

Corentin — Thu, 14 Mar 2019 11:04:21 GMT

set(MATH_LINK_LIBRARIE ${MATH_LINK_LIBRARIE} ${CMAKE_SOURCE_DIR}/firmware/lib/nRF5_SDK_15.2.0_9412b96/components/toolchain/cmsis/dsp/GCC/libarm_cortexM4lf_math.a)

target_link_libraries(${target_debug}
    rtt_${PLATFORM}
    uECC_${PLATFORM}
    ${MATH_LINK_LIBRARIE})

Yes sorry i link the library like this (already do with RTT and uECC).

RE: Configure math.h lib with cmake on SDK Mesh

awneil — Thu, 14 Mar 2019 11:02:44 GMT

[quote userid="23317" url="~/f/nordic-q-a/44735/configure-math-h-lib-with-cmake-on-sdk-mesh/176143"]add libarm_cortexM4l_math.a in include path[/quote]

Now that one is a Library, so you need to add it to the Linker's libraries path - not the compiler's include path.

RE: Configure math.h lib with cmake on SDK Mesh

Corentin — Thu, 14 Mar 2019 10:58:50 GMT

I already do this: add libarm_cortexM4l_math.a in include path and add define ARM_MATH_CM4. I can use functions in arm_math.h execpt function pointed to "math.h"

RE: Configure math.h lib with cmake on SDK Mesh

awneil — Tue, 12 Mar 2019 17:02:57 GMT

[quote userid="23317" url="~/f/nordic-q-a/44735/configure-math-h-lib-with-cmake-on-sdk-mesh"]I understand that compiler doesn't find math.h library.[/quote]

math.h isn't a library - it's just a header file.

It'll be the Linker that needs the library ...

RE: Configure math.h lib with cmake on SDK Mesh

Joakim Jakobsen — Tue, 12 Mar 2019 16:44:48 GMT

Hi.

Maybe you could take a look at the suggestion in this thread:

https://devzone.nordicsemi.com/f/nordic-q-a/27715/nrf52832-how-to-include-the-arm_math-h-library

Best regards,
Joakim