Problem with building nginx with rtmp module over the cygwin

objs/addon/nginx-rtmp-module-master/ngx_rtmp_stat_module.o \
objs/addon/nginx-rtmp-module-master/ngx_rtmp_control_module.o \
objs/ngx_modules.o \
-lcrypt ../pcre-8.38/.libs/libpcre.a -lssl -lcrypto ../zlib-1.2.8/libz.a \
-Wl,-E
/usr/lib/gcc/x86_64-pc-cygwin/5.3.0/../../../../x86_64-pc-cygwin/bin/ld: warning: --export-dynamic is not supported for PE+ targets, did you mean --export-all-symbols?
sed -e "s|%%PREFIX%%|/usr/local/nginx|" \
-e "s|%%PID_PATH%%|/usr/local/nginx/logs/nginx.pid|" \
-e "s|%%CONF_PATH%%|/usr/local/nginx/conf/nginx.conf|" \
-e "s|%%ERROR_LOG_PATH%%|/usr/local/nginx/logs/error.log|" \
< man/nginx.8 > objs/nginx.8
make[1]: Leaving directory '/tmp/nginx-1.9.15'