Resolving dependencies...
Configuring xattr-0.5.1...
configure: WARNING: unrecognized options: --with-compiler, --with-gcc
checking for gawk... no
checking for mawk... mawk
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
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 ISO C89... none needed
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/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 for sys/types.h... (cached) yes
checking attr/xattr.h usability... yes
checking attr/xattr.h presence... yes
checking for attr/xattr.h... yes
checking for getxattr... yes
checking for lgetxattr... yes
checking for fgetxattr... yes
checking for setxattr... yes
checking for lsetxattr... yes
checking for fsetxattr... yes
checking for listxattr... yes
checking for llistxattr... yes
checking for flistxattr... yes
Building xattr-0.5.1...
Preprocessing library xattr-0.5.1...
[1 of 1] Compiling System.Xattr     ( dist/build/System/Xattr.hs, dist/build/System/Xattr.o )

src/System/Xattr.hsc:140:52:
    The last statement in a 'do' block must be an expression
      s <- peekCStringLen (mem, fromIntegral buflen)

src/System/Xattr.hsc:141:22: Not in scope: ‘s’
Failed to install xattr-0.5.1
cabal: Error: some packages failed to install:
xattr-0.5.1 failed during the building phase. The exception was:
ExitFailure 1