trying to install irssi

brew doctor

$ brew doctor
/usr/bin is in your PATH before Homebrew's bin. This means that system-
provided programs will be used before Homebrew-provided ones. This is an
issue if you install, for instance, Python.

Consider editing your .bashrc to put:
  /usr/local/bin
ahead of /usr/bin in your $PATH.

Some brews install binaries to sbin instead of bin, but Homebrew's
sbin was not found in your path.

Consider editing your .bashrc to add:
  /usr/local/sbin
to $PATH.

You have a non-brew 'pkg-config' in your PATH:
  /usr/bin/pkg-config

`./configure` may have problems finding brew-installed packages using
this other pkg-config.

Your pkg-config is not checking "/usr/X11/lib/pkgconfig" for packages.
Earlier versions of the pkg-config formula did not add this path
to the search path, which means that other formula may not be able
to find certain dependencies.

To resolve this issue, re-brew pkg-config with:
  brew rm pkg-config && brew install pkg-config   <--- i did this already and still get this error?

Some "config" scripts were found in your path, but not in system or Homebrew folders.

`./configure` scripts often look for *-config scripts to determine if software packages
are installed, and what additional flags to use when compiling and linking.

Having additional scripts in your path can confuse software installed via Homebrew if
the config script overrides a system or Homebrew provided script of the same name.

/Library/Frameworks/Python.framework/Versions/2.7/bin
    python-config python2.7-config

brew install irssi

$ brew install -v irssi
==> Downloading http://irssi.org/files/irssi-0.8.15.tar.bz2
File already downloaded and cached to /Users/q/Library/Caches/Homebrew
/usr/bin/tar xf /Users/q/Library/Caches/Homebrew/irssi-0.8.15.tar.bz2
==> Downloading patches
==> Patching
/usr/bin/patch -f -p1 -i 001-homebrew.diff
patching file configure
Hunk #1 succeeded at 14050 (offset -13369 lines).
Hunk #2 succeeded at 14068 with fuzz 2 (offset -13369 lines).
==> ./configure --prefix=/usr/local/Cellar/irssi/0.8.15 --with-perl=yes --with-perl-lib=site --with-bot --with-proxy --enable-ssl --enable-ipv6
./configure --prefix=/usr/local/Cellar/irssi/0.8.15 --with-perl=yes --with-perl-lib=site --with-bot --with-proxy --enable-ssl --enable-ipv6
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... build-aux/install-sh -c -d
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking for style of include used by make... GNU
checking for gcc... /usr/bin/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 /usr/bin/cc accepts -g... yes
checking for /usr/bin/cc option to accept ISO C89... none needed
checking dependency style of /usr/bin/cc... gcc3
checking for library containing strerror... none required
checking for gcc... (cached) /usr/bin/cc
checking whether we are using the GNU C compiler... (cached) yes
checking whether /usr/bin/cc accepts -g... (cached) yes
checking for /usr/bin/cc option to accept ISO C89... (cached) none needed
checking dependency style of /usr/bin/cc... (cached) gcc3
checking how to run the C preprocessor... /usr/bin/cc -E
checking build system type... x86_64-apple-darwin10.7.3
checking host system type... x86_64-apple-darwin10.7.3
checking for a sed that does not truncate output... /usr/bin/sed
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for fgrep... /usr/bin/grep -F
checking for ld used by /usr/bin/cc... /usr/bin/cc
checking if the linker (/usr/bin/cc) is GNU ld... no
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm
checking the name lister (/usr/bin/nm) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 196608
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking for /usr/bin/cc option to reload object files... -r
checking for objdump... no
checking how to recognize dependent libraries... pass_all
checking for ar... ar
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /usr/bin/nm output from /usr/bin/cc object... ok
checking for dsymutil... dsymutil
checking for nmedit... nmedit
checking for lipo... lipo
checking for otool... otool
checking for otool64... no
checking for -single_module linker flag... yes
checking for -exported_symbols_list linker flag... yes
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 dlfcn.h... yes
checking for objdir... .libs
checking if /usr/bin/cc supports -fno-rtti -fno-exceptions... yes
checking for /usr/bin/cc option to produce PIC... -fno-common -DPIC
checking if /usr/bin/cc PIC flag -fno-common -DPIC works... yes
checking if /usr/bin/cc static flag -static works... no
checking if /usr/bin/cc supports -c -o file.o... yes
checking if /usr/bin/cc supports -c -o file.o... (cached) yes
checking whether the /usr/bin/cc linker (/usr/bin/cc) supports shared libraries... yes
checking dynamic linker characteristics... darwin10.7.3 dyld
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking for sed... /usr/bin/sed
checking for perl... /usr/bin/perl
checking for unistd.h... (cached) yes
checking dirent.h usability... yes
checking dirent.h presence... yes
checking for dirent.h... yes
checking sys/ioctl.h usability... yes
checking sys/ioctl.h presence... yes
checking for sys/ioctl.h... yes
checking sys/resource.h usability... yes
checking sys/resource.h presence... yes
checking for sys/resource.h... yes
checking sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking sys/utsname.h usability... yes
checking sys/utsname.h presence... yes
checking for sys/utsname.h... yes
checking regex.h usability... yes
checking regex.h presence... yes
checking for regex.h... yes
checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... no
checking for socket... yes
checking for inet_addr... yes
checking for socklen_t... yes
checking size of int... 4
checking size of long... 8
checking size of long long... 8
checking size of off_t... 8
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.7... yes
checking for GLIB - version >= 2.6.0... no
*** Could not run GLIB test program, checking why...
*** The test program failed to compile or link. See the file config.log for the
*** exact error that occured. This usually means GLIB is incorrectly installed.
*** trying without -lgmodule
checking for pkg-config... (cached) /usr/bin/pkg-config
checking pkg-config is at least version 0.7... yes
checking for GLIB - version >= 2.6.0... no
*** Could not run GLIB test program, checking why...
*** The test program failed to compile or link. See the file config.log for the
*** exact error that occured. This usually means GLIB is incorrectly installed.

*** If you don't have GLIB, you can get it from ftp://ftp.gtk.org/pub/glib/
*** We recommend you get the latest stable GLIB 2 version.
*** Compile and install it, and make sure pkg-config finds it,
*** by adding the path where the .pc file is located to PKG_CONFIG_PATH

configure: error: GLIB is required to build irssi.
==> Exit Status: 1
http://github.com/mxcl/homebrew/blob/master/Library/Formula/irssi.rb#L22
==> Environment
HOMEBREW_VERSION: 0.8
HEAD: 97375337c1eed784ee12422774490885e4a5d737
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
HOMEBREW_REPOSITORY: /usr/local
HOMEBREW_LIBRARY_PATH: /usr/local/Library/Homebrew
Hardware: 8-core 64-bit dunno
OS X: 10.6.7
Kernel Architecture: x86_64
Ruby: 1.8.7-174
/usr/bin/ruby => /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
Xcode: 3.2.6
GCC-4.0: build 5494 
GCC-4.2: build 5666 
LLVM: build 2335 
MacPorts or Fink? false
X11 installed? true
==> Build Flags
CC: /usr/bin/cc => /usr/bin/gcc-4.2
CXX: /usr/bin/c++ => /usr/bin/c++-4.2
LD: /usr/bin/cc => /usr/bin/gcc-4.2
CFLAGS: -O3 -w -pipe
CXXFLAGS: -O3 -w -pipe
MAKEFLAGS: -j8

Error: Failed executing: ./configure --prefix=/usr/local/Cellar/irssi/0.8.15 --with-perl=yes --with-perl-lib=site --with-bot --with-proxy --enable-ssl --enable-ipv6
Please report this bug: https://github.com/mxcl/homebrew/wiki/new-issue
It looks like an autotools configure failed.
Consider re-running the install with '-vd' to keep 'config.log' around:
    brew install -vd irssi
Gist 'config.log' and any error output when reporting an issue.
Remember to include your config information: brew --config

Also try:
  `brew doctor` to check your setup for common problems.
  `brew missing` to check installed packages for missing deps.