CODEWITHSUNDEEP
cmakeyoctobitbake
SAS
SAS

Reputation: 75

CMake could not find Perl

I am trying to build mbedcrypto using my own recipe for arm board using Yocto Linux. I am able to download and unpack the source code but during compile of the library , i get the errors

| -- Detecting C compiler ABI info
| -- Detecting C compiler ABI info - done
| -- Detecting C compile features
| -- Detecting C compile features - done
| -- Could NOT find PythonInterp (missing:  PYTHON_EXECUTABLE)
| -- Could NOT find Perl (missing:  PERL_EXECUTABLE)

Relevant CMakeLists.txt portion as follows


set(CTR_DRBG_128_BIT_KEY_WARNING "${WARNING_BORDER}"
                         "${CTR_DRBG_128_BIT_KEY_WARN_L1}"
                         "${CTR_DRBG_128_BIT_KEY_WARN_L2}"
                         "${CTR_DRBG_128_BIT_KEY_WARN_L3}"
                         "${WARNING_BORDER}")


find_package(PythonInterp)
find_package(Perl)
if(PERL_FOUND)

    # If 128-bit keys are configured for CTR_DRBG, display an appropriate warning
    execute_process(COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/scripts/config.pl -f ${CMAKE_CURRENT_SOURCE_DIR}/include/mbedtls/config.h get MBEDTLS_CTR_DRBG_USE_128_BIT_KEY

The error msg

 Found Threads: TRUE
| -- Could NOT find Perl (missing:  PERL_EXECUTABLE)
| CMake Error at tests/CMakeLists.txt:15 (message):
|   Cannot build test suites without Perl

comes from the file tests/CMakeLists.txt which has 

if(ENABLE_ZLIB_SUPPORT)
    set(libs ${libs} ${ZLIB_LIBRARIES})
endif(ENABLE_ZLIB_SUPPORT)

find_package(Perl)
if(NOT PERL_FOUND)
    message(FATAL_ERROR "Cannot build test suites without Perl")
endif()

I have perl installed and running at /usr/bin/perl of my host computer. I dont know if it's some cmake config or yocto issue.

mbedcrypto recipe

DESCRIPTION = "Simple helloworld application"
SECTION = "examples"
DEPENDS = ""
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://LICENSE;md5=302d50a6369f5f22efdb674db908167a"
SRC_URI[md5sum] = "06dd48905c236f7939d03b09bcf7f1a2"


SRC_URI = "https://github.com/ARMmbed/mbed-crypto/archive/mbedcrypto-${PV}.tar.gz"

S = "${WORKDIR}/mbed-crypto-mbedcrypto-${PV}"

inherit cmake pkgconfig

Upvotes: 1

Views: 5867

Answers (1)

Tomas Novotny
Tomas Novotny

Reputation: 1939

Your recipe is missing build-time dependency for Perl and Python. These dependencies are specified by DEPENDS variable.

If you need native variant of Perl to build tests, specify (edit: according to the comment, it didn't help):

DEPENDS = "perl-native"

You can also use perlnative class (see doc for the difference):

inherit perlnative

BTW there are also runtime dependencies (see RDEPENDS variable).

Upvotes: 0

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