homebrew: hang on pipe in ./configure (example: groff)

01.configure

user (~)$ HOMEBREW_MAKE_JOBS=1 VERBOSE=1 brew install groff --with-grohtml 2>&1
==> Downloading http://ftpmirror.gnu.org/groff/groff-1.22.2.tar.gz
Already downloaded: /Library/Caches/Homebrew/groff-1.22.2.tar.gz
tar xf /Library/Caches/Homebrew/groff-1.22.2.tar.gz
==> ./configure --prefix=/usr/local/Cellar/groff/1.22.2 --without-x
./configure --prefix=/usr/local/Cellar/groff/1.22.2 --without-x
checking for gcc... cc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether cc accepts -g... yes
checking for cc option to accept ISO C89... none needed
checking how to run the C preprocessor... cc -E
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/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 minix/config.h usability... no
checking minix/config.h presence... no
checking for minix/config.h... no
checking whether it is safe to define __EXTENSIONS__... yes
checking for gcc... (cached) cc
checking whether we are using the GNU C compiler... (cached) yes
checking whether cc accepts -g... (cached) yes
checking for cc option to accept ISO C89... (cached) none needed
checking whether we are using the GNU C++ compiler... yes
checking whether c++ accepts -g... yes
checking that C++ compiler can compile simple program... yes
checking that C++ static constructors and destructors are called... yes
checking that header files support C++... yes
checking whether character set is EBCDIC... no
checking for X... disabled
configure: gxditview and xtotroff won't be built
checking for lpr... lpr
checking for lp... lp
checking for lpq... lpq
checking for command to use for printing PostScript files... lpr
checking for command to use for printing dvi files... lpr -d
checking for egrep... (cached) /usr/bin/grep -E
checking for perl... /usr/bin/perl
checking for byacc... no
checking for bison... bison -y
checking for makeinfo... makeinfo
checking for makeinfo version... 4.8
checking for ranlib... ranlib
checking for install-info... install-info
checking for a BSD-compatible install... /usr/bin/install -c
checking whether ln -s works... yes
checking for csh hash hack... no
checking stddef.h usability... yes
checking stddef.h presence... yes
checking for stddef.h... yes
checking for stdlib.h... (cached) yes
checking for unistd.h... (cached) yes
checking dirent.h usability... yes
checking dirent.h presence... yes
checking for dirent.h... yes
checking limits.h usability... yes
checking limits.h presence... yes
checking for limits.h... yes
checking sys/dir.h usability... yes
checking sys/dir.h presence... yes
checking for sys/dir.h... yes
checking for string.h... (cached) yes
checking for strings.h... (cached) yes
checking math.h usability... yes
checking math.h presence... yes
checking for math.h... yes
checking sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking direct.h usability... no
checking direct.h presence... no
checking for direct.h... no
checking process.h usability... no
checking process.h presence... no
checking for process.h... no
checking for ISC 3.x or 4.x... no
checking whether -D_POSIX_SOURCE is necessary... no
checking for return type of srand... void
checking whether gettimeofday must be declared... no
checking whether hypot must be declared... no
checking whether popen must be declared... no
checking whether pclose must be declared... no
checking whether putenv must be declared... no
checking whether rand must be declared... no
checking whether snprintf must be declared... no
checking whether srand must be declared... no
checking whether strcasecmp must be declared... no
checking whether strncasecmp must be declared... no
checking whether vfprintf must be declared... no
checking whether vsnprintf must be declared... no
checking for sys_nerr in <errno.h>, <stdio.h>, or <stdlib.h>... yes
checking for sys_errlist in <errno.h>, <stdio.h>, or <stdlib.h>... yes
checking C++ <osfcn.h>... no
checking C++ <limits.h>... yes
checking C++ <inttypes.h>... yes
checking for unsigned long long... yes
checking for declaration of time_t... yes
checking for return type of signal handlers... void
checking struct exception... yes
checking whether byte ordering is bigendian... no
checking for main in -lc... yes
checking for sin in -lm... yes
checking build system type... x86_64-apple-darwin13.0.0
checking host system type... x86_64-apple-darwin13.0.0
checking for ld used by GCC... /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld
checking if the linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) is GNU ld... no
checking for shared library run path origin... done
checking how to run the C++ preprocessor... c++ -E
checking for iconv... yes
checking for working iconv... yes
checking how to link with libiconv... -liconv
checking for iconv declaration... 
         extern size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
checking for stdlib.h... (cached) yes
checking for unistd.h... (cached) yes
checking for sys/param.h... yes
checking for getpagesize... yes
checking for working mmap... yes
checking for fmod... yes
checking for getcwd... yes
checking for putenv... yes
checking for snprintf... yes
checking for strcasecmp... yes
checking for strerror... yes
checking for strncasecmp... yes
checking for strtol... yes
checking for vsnprintf... yes
checking for gettimeofday... yes
checking for isatty... yes
checking for kill... yes
checking for rename... yes
checking for setlocale... yes
checking for strsep... yes
checking for mkstemp... yes
checking whether sys_siglist is declared... no
checking whether getc_unlocked is declared... yes
checking for nl_langinfo and CODESET... yes
checking whether ANSI array delete syntax is supported... yes
checking traditional preprocessor... no
checking w_coredump... no
checking default value for grops -b option... 0
checking default paper size... letter
checking for existing troff installation... no
checking for prefix of system macro packages... 
checking which system macro packages should be made available... 
checking separator character to use in groff search paths... :
checking for gs... gs
checking for pnmcut... found
checking for pnmcrop... found
checking for pnmtopng... found
checking for psselect... found
checking for pnmtops... found
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether pnmtops can handle the -nosetpage option... ^C

config.out

HOMEBREW_VERSION: 0.9.5
ORIGIN: https://github.com/mxcl/homebrew
HEAD: 57efdbcf699fdc34ae3d4ecea6278a42f8d9dbe2
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
CPU: 8-core 64-bit ivybridge
OS X: 10.9-x86_64
Xcode: 5.0.1
CLT: 5.0.1.0.1.1382131676
LLVM-GCC: N/A
Clang: 5.0 build 500
X11: N/A
System Ruby: 1.8.7-358
Perl: /usr/bin/perl
Python: /usr/local/bin/python => /usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/bin/python2.7
Ruby: /usr/local/var/rbenv/shims/ruby

doctor.out

Your system is ready to brew.