> gcc -mwindows -I/usr/include/w32api/ -L/usr/lib/w32api/ pop.c
In file included from pop.c:17:
/usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../include/w32api/winsock2.h:95:2: warning: #warning "fd_set and associated macros have been defined in sys/types. This may cause runtime problems with W32 sockets"
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x16e): undefined reference to `_WSAStartup@8'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x1e2): undefined reference to `_WSACleanup@0'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x25b): undefined reference to `_socket@12'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x287): undefined reference to `_htons@4'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x2d7): undefined reference to `_gethostbyname@4'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x321): undefined reference to `_connect@12'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x38c): undefined reference to `_recv@16'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x45e): undefined reference to `_send@16'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x4c3): undefined reference to `_recv@16'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x595): undefined reference to `_send@16'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x5fa): undefined reference to `_recv@16'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x69e): undefined reference to `_send@16'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x703): undefined reference to `_recv@16'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x79d): undefined reference to `_Cleanup'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x7ca): undefined reference to `_Cleanup'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x897): undefined reference to `_send@16'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x8f6): undefined reference to `_WSACleanup@0'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0x916): undefined reference to `_WSAGetLastError@0'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0xc42): undefined reference to `_WSACleanup@0'
/cygdrive/c/DOCUME~1/tom/LOCALS~1/Temp/ccv5Totr.o:pop.c:(.text+0xc65): undefined reference to `_WSACleanup@0'
collect2: ld returned 1 exit status