brew issue summary

gistfile1.txt

$ brew --config
HOMEBREW_VERSION: 0.9.5
ORIGIN: https://github.com/Homebrew/homebrew.git
HEAD: eccc96babfa4cf40fb40718edf2693deda263614
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
CPU: quad-core 64-bit ivybridge
OS X: 10.9.2-x86_64
Xcode: 5.1
CLT: 5.1.0.0.1.1393561416
Clang: 5.1 build 503
X11: 2.7.5 => /opt/X11
System Ruby: 1.8.7-358
Perl: /usr/bin/perl
Python: /usr/bin/python
Ruby: /Users/xxx/.rvm/rubies/ruby-2.1.0/bin/ruby

$ brew doctor
Your system is ready to brew.

$ brew install -v inkscape --HEAD 2>&1
/usr/bin/env perl -e use XML::Parser
/usr/bin/env perl -e use XML::Parser
==> Cloning lp:inkscape/0.48.x
Updating /Library/Caches/Homebrew/inkscape--bzr
/usr/local/opt/bazaar/bin/bzr update
Tree is up to date at revision 10025 of branch http://bazaar.launchpad.net/~inkscape.dev/inkscape/RELEASE_0_48_BRANCH
==> ./autogen.sh
Failed to execute: ./autogen.sh
==> Configuration
HOMEBREW_VERSION: 0.9.5
HEAD: 46fd31e5d9173e541a904150588719a84423ac26
CPU: quad-core 64-bit ivybridge
OS X: 10.9.2-x86_64
Xcode: 5.1
CLT: 5.1.0.0.1.1393561416
X11: 2.7.5 => /opt/X11
==> ENV
HOMEBREW_CC: clang
HOMEBREW_CXX: clang++
MAKEFLAGS: -j4
CMAKE_PREFIX_PATH: /usr/local/opt/gettext:/usr/local/opt/libffi:/usr/local/opt/icu4c:/usr/local
CMAKE_INCLUDE_PATH: /usr/include/libxml2:/opt/X11/include:/opt/X11/include/freetype2
CMAKE_LIBRARY_PATH: /opt/X11/lib
PKG_CONFIG_PATH: /usr/local/opt/bdw-gc/lib/pkgconfig:/usr/local/opt/libsigc++/lib/pkgconfig:/usr/local/opt/libffi/lib/pkgconfig:/usr/local/opt/glib/lib/pkgconfig:/usr/local/opt/glibmm/lib/pkgconfig:/usr/local/opt/libtiff/lib/pkgconfig:/usr/local/opt/libpng/lib/pkgconfig:/usr/local/opt/gobject-introspection/lib/pkgconfig:/usr/local/opt/gdk-pixbuf/lib/pkgconfig:/usr/local/opt/freetype/lib/pkgconfig:/usr/local/opt/fontconfig/lib/pkgconfig:/usr/local/opt/pixman/lib/pkgconfig:/usr/local/opt/cairo/lib/pkgconfig:/usr/local/opt/icu4c/lib/pkgconfig:/usr/local/opt/harfbuzz/lib/pkgconfig:/usr/local/opt/pango/lib/pkgconfig:/usr/local/opt/atk/lib/pkgconfig:/usr/local/opt/gtk+/lib/pkgconfig:/usr/local/opt/cairomm/lib/pkgconfig:/usr/local/opt/pangomm/lib/pkgconfig:/usr/local/opt/atkmm/lib/pkgconfig:/usr/local/opt/gtkmm/lib/pkgconfig:/usr/local/opt/gsl/lib/pkgconfig:/usr/local/opt/popt/lib/pkgconfig:/usr/local/opt/little-cms/lib/pkgconfig
PKG_CONFIG_LIBDIR: /usr/lib/pkgconfig:/usr/local/Library/ENV/pkgconfig/10.9:/opt/X11/lib/pkgconfig:/opt/X11/share/pkgconfig
ACLOCAL_PATH: /usr/local/opt/gettext/share/aclocal:/usr/local/share/aclocal:/opt/X11/share/aclocal
PATH: /usr/local/Library/ENV/4.3:/usr/local/opt/bazaar/bin:/usr/local/opt/autoconf/bin:/usr/local/opt/automake/bin:/usr/local/opt/pkg-config/bin:/usr/local/opt/intltool/bin:/usr/local/opt/boost-build/bin:/usr/local/opt/gettext/bin:/usr/local/opt/glib/bin:/usr/local/opt/jpeg/bin:/usr/local/opt/libtiff/bin:/usr/local/opt/libpng/bin:/usr/local/opt/gobject-introspection/bin:/usr/local/opt/gdk-pixbuf/bin:/usr/local/opt/freetype/bin:/usr/local/opt/fontconfig/bin:/usr/local/opt/cairo/bin:/usr/local/opt/icu4c/bin:/usr/local/opt/harfbuzz/bin:/usr/local/opt/pango/bin:/usr/local/opt/gtk+/bin:/usr/local/opt/gsl/bin:/usr/local/opt/little-cms/bin:/opt/X11/bin:/usr/bin:/bin:/usr/sbin:/sbin

Error: inkscape HEAD did not build
Logs:
     /Users/xxx/Library/Logs/Homebrew/inkscape/01.autogen.sh

These open issues may also help:
inkscape failed to build on 10.9 (https://github.com/Homebrew/homebrew/issues/28097)