Output from brew install -v gdk-pixbuf

gdk-pixbuf-2.26.2.og

==> Downloading http://ftp.gnome.org/pub/GNOME/sources/gdk-pixbuf/2.26/gdk-pixbuf-2.26.2.tar.xz
Already downloaded: /Users/robbie/Library/Caches/Homebrew/gdk-pixbuf-2.26.2.tar.xz
xz -dc "/Users/robbie/Library/Caches/Homebrew/gdk-pixbuf-2.26.2.tar.xz" | /usr/bin/tar xf - 
==> ./configure --disable-dependency-tracking --disable-maintainer-mode --enable-debug=no --prefix=/usr/local/Cellar/gdk-pixbuf/2.26.2 --with-libjasper --enable-introspection=no --disable-Bsymbolic --without-gdiplus
./configure --disable-dependency-tracking --disable-maintainer-mode --enable-debug=no --prefix=/usr/local/Cellar/gdk-pixbuf/2.26.2 --with-libjasper --enable-introspection=no --disable-Bsymbolic --without-gdiplus
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... ./install-sh -c -d
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking how to create a ustar tar archive... gnutar
checking whether to enable maintainer-specific portions of Makefiles... no
checking whether make supports nested variables... yes
checking for gcc... /usr/bin/clang
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/clang accepts -g... yes
checking for /usr/bin/clang option to accept ISO C89... none needed
checking for style of include used by make... GNU
checking dependency style of /usr/bin/clang... none
checking whether /usr/bin/clang and cc understand -c and -o together... yes
checking for /usr/bin/clang option to accept ISO C99... none needed
checking for /usr/bin/clang option to accept ISO Standard C... (cached) none needed
checking whether make sets $(MAKE)... (cached) yes
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking build system type... x86_64-apple-darwin11.4.0
checking host system type... x86_64-apple-darwin11.4.0
checking for native Win32... no
checking how to print strings... printf
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/clang... /usr/bin/clang
checking if the linker (/usr/bin/clang) 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 how to convert x86_64-apple-darwin11.4.0 file names to x86_64-apple-darwin11.4.0 format... func_convert_file_noop
checking how to convert x86_64-apple-darwin11.4.0 file names to toolchain format... func_convert_file_noop
checking for /usr/bin/clang option to reload object files... -r
checking for objdump... no
checking how to recognize dependent libraries... pass_all
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for ar... ar
checking for archiver @FILE support... no
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /usr/bin/nm output from /usr/bin/clang object... ok
checking for sysroot... no
checking for mt... no
checking if : is a manifest tool... no
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 -force_load linker flag... yes
checking how to run the C preprocessor... /usr/bin/clang -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 dlfcn.h... yes
checking for objdir... .libs
checking if /usr/bin/clang supports -fno-rtti -fno-exceptions... yes
checking for /usr/bin/clang option to produce PIC... -fno-common -DPIC
checking if /usr/bin/clang PIC flag -fno-common -DPIC works... yes
checking if /usr/bin/clang static flag -static works... no
checking if /usr/bin/clang supports -c -o file.o... yes
checking if /usr/bin/clang supports -c -o file.o... (cached) yes
checking whether the /usr/bin/clang linker (/usr/bin/clang) supports shared libraries... yes
checking dynamic linker characteristics... darwin11.4.0 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... no
configure: creating ./config.lt
config.lt: creating libtool
checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... no
checking dependency style of /usr/bin/clang... none
checking for nm... /usr/bin/nm
checking for some Win32 platform... no
checking whether build environment is sane... yes
checking for BASE_DEPENDENCIES... no
configure: error: Package requirements (glib-2.0 >= 2.31.0) were not met:

No package 'glib-2.0' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables BASE_DEPENDENCIES_CFLAGS
and BASE_DEPENDENCIES_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.
config.log was copied to /Users/robbie/Library/Logs/Homebrew
==> Exit Status: 1
https://github.com/mxcl/master/blob/master/Library/Formula/gdk-pixbuf.rb#L22
==> Build Environment
HOMEBREW_VERSION: 0.9.2
HEAD: ed127082d8e11debdba4c17fb63ea72e9a14c4ad
CPU: 8-core 64-bit sandybridge
OS X: 10.7.4-x86_64
Xcode: 4.4.1
CLT: 4.3.0.0.1.1249367152
GCC-4.0: N/A
GCC-4.2: N/A
LLVM: build 2336
Clang: 3.1 build 318
X11: 2.6.4 in /usr/X11
CC: /usr/bin/clang
CXX: /usr/bin/clang++ => /usr/bin/clang
LD: /usr/bin/clang
CFLAGS: -Os -w -pipe -march=native -Qunused-arguments -mmacosx-version-min=10.7
CXXFLAGS: -Os -w -pipe -march=native -Qunused-arguments -mmacosx-version-min=10.7
CPPFLAGS: -I/usr/local/Cellar/libffi/3.0.11/include -I/usr/local/Cellar/gettext/0.18.1.1/include -isystem /usr/local/include -I/usr/X11/include
LDFLAGS: -L/usr/local/Cellar/libffi/3.0.11/lib -L/usr/local/Cellar/gettext/0.18.1.1/lib -L/usr/local/lib -L/usr/X11/lib
CMAKE_PREFIX_PATH: /usr/X11
MAKEFLAGS: -j8
MACOSX_DEPLOYMENT_TARGET: 10.7
PKG_CONFIG_PATH: /usr/local/Cellar/libffi/3.0.11/lib/pkgconfig:/usr/X11/share/pkgconfig:/usr/X11/lib/pkgconfig
ACLOCAL_PATH: /usr/local/Cellar/gettext/0.18.1.1/share/aclocal
OBJC: /usr/bin/clang
PATH: /usr/local/Cellar/libffi/3.0.11/bin:/usr/local/Cellar/gettext/0.18.1.1/bin:/usr/X11/bin:/Users/robbie/.rvm/gems/ruby-1.9.3-p0/bin:/Users/robbie/.rvm/gems/ruby-1.9.3-p0@global/bin:/Users/robbie/.rvm/rubies/ruby-1.9.3-p0/bin:/Users/robbie/.rvm/bin:.:/var/lib/gems/1.8/bin:/Users/robbie/sbin:/Users/robbie/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/usr/local/git/bin:/usr/local/MacGPG2/bin:/opt/local/bin:/Users/robbie/.rvm/bin:/usr/local/Library/Contributions/cmds

Error: Failed executing: ./configure --disable-dependency-tracking --disable-maintainer-mode --enable-debug=no --prefix=/usr/local/Cellar/gdk-pixbuf/2.26.2 --with-libjasper --enable-introspection=no --disable-Bsymbolic --without-gdiplus (gdk-pixbuf.rb:22)

These existing issues may help you:
    https://github.com/mxcl/homebrew/issues/13786
Otherwise, this may help you fix or report the issue:
    https://github.com/mxcl/homebrew/wiki/bug-fixing-checklist
We saved the configure log:
    ~/Library/Logs/Homebrew/config.log
When you report the issue please paste the config.log here:
    http://gist.github.com/