Same error with R CMD INSTALL ~/Downloads/igraph_nightly_0.6.5-3106-20130304.tar.gz, and with R CMD INSTALL ~/Downloads/igraph_0.6.5-1.tar.gz.
And compiling the latest one there is an error (below). I shall contact the author about this. Many thanks.
R CMD INSTALL ~/Downloads/XML_3.96-1.1.tar.gz
* installing to library ‘/Library/Frameworks/R.framework/Versions/3.0/Resources/library’
* installing *source* package ‘XML’ ...
** package ‘XML’ successfully unpacked and MD5 sums checked
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking how to run the C preprocessor... gcc -E
checking for sed... /usr/bin/sed
checking for pkg-config... no
checking for xml2-config... /Library/Frameworks/EPD64.framework/Versions/Current/bin/xml2-config
USE_XML2 = yes
SED_EXTENDED_ARG: -E
Minor 7, Patch 8 for 2.7.8
Located parser file -I/Library/Frameworks/EPD64.framework/Versions/7.3/include/libxml2/parser.h
Checking for 1.8: -I/Library/Frameworks/EPD64.framework/Versions/7.3/include/libxml2
Using libxml2.*
checking for gzopen in -lz... yes
checking for xmlParseFile in -lxml2... yes
You are trying to use a version 2.* edition of libxml
but an incompatible library. The header files and library seem to be
mismatched. If you have specified LIBXML_INCDIR, make certain to also
specify an appropriate LIBXML_LIBDIR if the libxml2 library is not in the default
directories.
ERROR: configuration failed for package ‘XML’
* removing ‘/Library/Frameworks/R.framework/Versions/3.0/Resources/library/XML’
* restoring previous ‘/Library/Frameworks/R.framework/Versions/3.0/Resources/library/XML’