bash-3.2$ sudo port install inkscape
--->  Fetching inkscape
--->  Attempting to fetch inkscape-0.45.1.tar.gz from http://downloads.sourceforge.net/inkscape
--->  Verifying checksum(s) for inkscape
--->  Extracting inkscape
--->  Applying patches to inkscape
--->  Configuring inkscape
Error: Target org.macports.configure returned: configure failure: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_gnome_inkscape/work/inkscape-0.45.1" && ./configure --prefix=/opt/local --mandir=/opt/local/share/man --with-xft --with-gnome-print --with-gnome-vfs --with-perl --with-python --enable-lcms --enable-inkboard " returned error 1
Command output: checking locale.h presence... yes
checking for locale.h... yes
checking for LC_MESSAGES... yes
checking libintl.h usability... yes
checking libintl.h presence... yes
checking for libintl.h... yes
checking for ngettext in libc... no
checking for bindtextdomain in -lintl... yes
checking for ngettext in -lintl... yes
checking for dgettext in -lintl... yes
checking for bind_textdomain_codeset... yes
checking for msgfmt... /opt/local/bin/msgfmt
checking for dcgettext... yes
checking for gmsgfmt... /opt/local/bin/msgfmt
checking for xgettext... /opt/local/bin/xgettext
checking for catalogs to be installed...  am az be bg ca cs da de dz el en_GB en_CA en_US@piglatin eo es es_MX et fi fr ga gl hr hu it ja km ko lt mk mn nb ne nl nn pa pl pt pt_BR ru rw sk sl sq sr sr@Latn sv th tr uk vi zh_CN zh_TW
checking for pkg-config... /opt/local/bin/pkg-config
checking for png_read_info in -lpng... yes
checking png.h usability... yes
checking png.h presence... yes
checking for png.h... yes
checking for shl_load in -ldld... no
checking for dlopen... yes
checking gc.h usability... no
checking gc.h presence... no
checking for gc.h... no
checking gc/gc.h usability... no
checking gc/gc.h presence... no
checking for gc/gc.h... no
configure: error: libgc (the Boehm Conservative Collector) 6.4+, is needed to compile inkscape -- http://www.hpl.hp.com/personal/Hans_Boehm/gc

Error: Status 1 encountered during processing.
bash-3.2$ 
bash-3.2$ 
bash-3.2$ 
bash-3.2$ port search libgc
libgcrypt                      devel/libgcrypt 1.4.0        Crypto library
bash-3.2$