-- Checking for module 'libwebsockets' error

[endertable]

Hi was wondering if anyone could shed some light on the following error that occurs while creating libkvsCommonLws's module 'libkvspicUtils' :

-- Looking for pthread_create in pthread - found
-- Found OpenSSL: /usr/lib/openssl/libcrypto.so (found version "1.1.1u")
-- Checking for module 'libwebsockets'
--   Package 'libcap', required by 'libwebsockets', not found
CMake Error at /opt/share/cmake-3.26/Modules/FindPkgConfig.cmake:607 (message):
  A required package was not found
Call Stack (most recent call first):
  /opt/share/cmake-3.26/Modules/FindPkgConfig.cmake:829 (_pkg_check_modules_internal)
  CMakeLists.txt:164 (pkg_check_modules)


-- Configuring incomplete, errors occurred!
make[2]: *** [CMakeFiles/libkvsCommonLws-download.dir/build.make:92: build/src/libkvsCommonLws-download-stamp/libkvsCommonLws-download-configure] Error 1
make[1]: *** [CMakeFiles/Makefile2:83: CMakeFiles/libkvsCommonLws-download.dir/all] Error 2
make: *** [Makefile:91: all] Error 2
CMake Error at CMake/Utilities.cmake:75 (message):
  CMake step for libkvsCommonLws failed: 2
Call Stack (most recent call first):
  CMakeLists.txt:218 (build_dependency)


-- Configuring incomplete, errors occurred!

So far other libraries got created in AWS_rtc/amazon-kinesis-video-streams-webrtc-sdk-c/open-source/lib including the file libwebsockets.so, libwebsockets.so.18, libwebsockets.a

Not sure if they are related to the "module" that is referenced in the error or different issue altogether. I have the pcap libraries as well.

Thanks for any info