ifeq "$(shell pkg-config --exists libcrypto && echo yes)" "yes"

HAVE_LIBCRYPTO = no

HAVE_LIBCRYPTO = yes

SYS_LIBCRYPTO_CFLAGS =

SYS_LIBCRYPTO_CFLAGS = -DHAVE_LIBCRYPTO $(shell pkg-config --cflags libcrypto)

SYS_LIBCRYPTO_LIBS =

SYS_LIBCRYPTO_LIBS = $(shell pkg-config --libs libcrypto)

endif