Hi, I was trying to install an extension (network-2.0) to Haskell on cygwin and I got an error or warning which requested to be reported to you :) You can see the output below and if you need more info I'll be glad to provide it to you.
Best regards, Mark Configuring network-2.0... configure: Dependency base-any: using base-2.1.1 configure: Dependency parsec-any: using parsec-2.0 configure: Using install prefix: C:\Program Files configure: Binaries installed in: C:\Program Files\Haskell\bin configure: Libraries installed in: C:\Program Files\Haskell\network- 2.0\ghc-6.6. 1 configure: Private binaries installed in: C:\Program Files\network-2.0 configure: Data files installed in: C:\Program Files\Common Files\network- 2.0 configure: Using compiler: c:\ghc\ghc-6.6.1\bin\ghc.exe configure: Compiler flavor: GHC configure: Compiler version: 6.6.1 configure: Using package tool: c:\ghc\ghc-6.6.1\bin\ghc-pkg.exe configure: Using ar found on system at: c:\ghc\ghc-6.6.1\bin\ar.exe configure: No haddock found configure: No pfesetup found configure: Using ranlib found on system at: C:\cygwin\bin\ranlib.exe configure: Using runghc found on system at: c:\ghc\ghc-6.6.1\bin\runghc.exe configure: No runhugs found configure: No happy found configure: No alex found configure: Using hsc2hs: c:\ghc\ghc-6.6.1\bin\hsc2hs.exe configure: No c2hs found configure: No cpphs found configure: No greencard found checking build system type... i686-pc-cygwin checking host system type... i686-pc-cygwin checking for gcc... gcc checking for C compiler default output... a.exe checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... .exe checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ANSI C... none needed checking for an ANSI C-conforming const... yes checking how to run the C preprocessor... gcc -E checking for egrep... grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking fcntl.h usability... yes checking fcntl.h presence... yes checking for fcntl.h... yes checking limits.h usability... yes checking limits.h presence... yes checking for limits.h... yes checking for stdlib.h... (cached) yes checking for sys/types.h... (cached) yes checking for unistd.h... (cached) yes checking winsock.h usability... no checking winsock.h presence... yes configure: WARNING: winsock.h: present but cannot be compiled configure: WARNING: winsock.h: check for missing prerequisite headers? configure: WARNING: winsock.h: proceeding with the preprocessor's result configure: WARNING: ## ------------------------------------ ## configure: WARNING: ## Report this to [EMAIL PROTECTED] ## configure: WARNING: ## ------------------------------------ ## checking for winsock.h... yes checking arpa/inet.h usability... yes checking arpa/inet.h presence... yes checking for arpa/inet.h... yes checking netdb.h usability... yes checking netdb.h presence... yes checking for netdb.h... yes checking netinet/in.h usability... yes checking netinet/in.h presence... yes checking for netinet/in.h... yes checking netinet/tcp.h usability... yes checking netinet/tcp.h presence... yes checking for netinet/tcp.h... yes checking sys/socket.h usability... yes checking sys/socket.h presence... yes checking for sys/socket.h... yes checking sys/uio.h usability... yes checking sys/uio.h presence... yes checking for sys/uio.h... yes checking sys/un.h usability... yes checking sys/un.h presence... yes checking for sys/un.h... yes checking for readlink... yes checking for symlink... yes checking for struct msghdr.msg_control... yes checking for struct msghdr.msg_accrights... no checking for in_addr_t in netinet/in.h... yes checking for sendfile in sys/sendfile.h... no checking for sendfile in sys/socket.h... no checking for gethostent... no configure: creating ./config.status config.status: creating network.buildinfo config.status: creating include/HsNetworkConfig.h config.status: include/HsNetworkConfig.h is unchanged [EMAIL PROTECTED] $ runghc Setup.hs build Preprocessing library network-2.0... Building network-2.0... cbits\ancilData.c: In function `sendFd': cbits\ancilData.c:47:0: error: variable `msg' has initializer but incomplete type cbits\ancilData.c:47:0: warning: excess elements in struct initializer cbits\ancilData.c:47:0: warning: (near initialization for `msg') cbits\ancilData.c:47:0: error: storage size of 'msg' isn't known cbits\ancilData.c:48:0: error: storage size of 'iov' isn't known cbits\ancilData.c:55:0: warning: implicit declaration of function `CMSG_SPACE' cbits\ancilData.c:61:0: warning: implicit declaration of function `CMSG_FIRSTHDR' cbits\ancilData.c:61:0: warning: assignment makes pointer from integer without a cast cbits\ancilData.c:62:0: error: dereferencing pointer to incomplete type cbits\ancilData.c:63:0: error: dereferencing pointer to incomplete type cbits\ancilData.c:63:0: error: `SCM_RIGHTS' undeclared (first use in this function) cbits\ancilData.c:63:0: error: (Each undeclared identifier is reported only once cbits\ancilData.c:63:0: error: for each function it appears in.) cbits\ancilData.c:64:0: error: dereferencing pointer to incomplete type cbits\ancilData.c:64:0: warning: implicit declaration of function `CMSG_LEN' cbits\ancilData.c:65:0: warning: implicit declaration of function `CMSG_DATA' cbits\ancilData.c:68:0: error: dereferencing pointer to incomplete type cbits\ancilData.c:78:0: warning: implicit declaration of function `sendmsg' cbits\ancilData.c: In function `sendAncillary': cbits\ancilData.c:89:0: error: variable `msg' has initializer but incomplete type cbits\ancilData.c:89:0: warning: excess elements in struct initializer cbits\ancilData.c:89:0: warning: (near initialization for `msg') cbits\ancilData.c:89:0: error: storage size of 'msg' isn't known cbits\ancilData.c:90:0: error: storage size of 'iov' isn't known cbits\ancilData.c:106:0: warning: assignment makes pointer from integer without a cast cbits\ancilData.c:107:0: error: dereferencing pointer to incomplete type cbits\ancilData.c:108:0: error: dereferencing pointer to incomplete type cbits\ancilData.c:109:0: error: dereferencing pointer to incomplete type cbits\ancilData.c:113:0: error: dereferencing pointer to incomplete type cbits\ancilData.c: In function `recvFd': cbits\ancilData.c:128:0: error: variable `msg' has initializer but incomplete type cbits\ancilData.c:128:0: warning: excess elements in struct initializer cbits\ancilData.c:128:0: warning: (near initialization for `msg') cbits\ancilData.c:128:0: error: storage size of 'msg' isn't known cbits\ancilData.c:132:0: error: storage size of 'iov' isn't known cbits\ancilData.c:163:0: warning: implicit declaration of function `recvmsg' cbits\ancilData.c: In function `recvAncillary': cbits\ancilData.c:184:0: error: variable `msg' has initializer but incomplete type cbits\ancilData.c:184:0: warning: excess elements in struct initializer cbits\ancilData.c:184:0: warning: (near initialization for `msg') cbits\ancilData.c:184:0: error: storage size of 'msg' isn't known cbits\ancilData.c:187:0: error: storage size of 'iov' isn't known cbits\ancilData.c:223:0: error: dereferencing pointer to incomplete type cbits\ancilData.c:224:0: error: dereferencing pointer to incomplete type cbits\ancilData.c:226:0: error: dereferencing pointer to incomplete type cbits\ancilData.c:226:0: error: invalid application of `sizeof' to incomplete type `cmsghdr' cbits\ancilData.c:227:0: warning: assignment makes pointer from integer without a cast