checking winsock2.h usability... no
checking winsock2.h presence... yes
configure: WARNING: winsock2.h: present but cannot be compiled
configure: WARNING: winsock2.h: check for missing prerequisite headers?
configure: WARNING: winsock2.h: see the Autoconf documentation
configure: WARNING: winsock2.h: section "Present But Cannot Be Compiled"
configure: WARNING: winsock2.h: proceeding with the compiler's result
configure: WARNING: ## -----------------------------------------------------
------ ##
configure: WARNING: ## Report this to https://github.com/stephane/libmodbus/
issues ##
configure: WARNING: ## -----------------------------------------------------
------ ##
checking for winsock2.h... no
checking whether TIOCSRS485 is declared... no
configure: creating ./config.status
checking winsock2.h usability... no checking winsock2.h presence... yes configure: WARNING: winsock2.h: present but cannot be compiled configure: WARNING: winsock2.h: check for missing prerequisite headers? configure: WARNING: winsock2.h: see the Autoconf documentation configure: WARNING: winsock2.h: section "Present But Cannot Be Compiled" configure: WARNING: winsock2.h: proceeding with the compiler's result configure: WARNING: ## ----------------------------------------------------- ------ ## configure: WARNING: ## Report this to https://github.com/stephane/libmodbus/ issues ## configure: WARNING: ## ----------------------------------------------------- ------ ## checking for winsock2.h... no checking whether TIOCSRS485 is declared... no configure: creating ./config.status