Error compiling cairomm

While compiling cairomm i got this error:

configure.ac:37: error: possibly undefined macro: AC_DISABLE_STATIC
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure.ac:38: error: possibly undefined macro: AC_LIBTOOL_WIN32_DLL
configure.ac:39: error: possibly undefined macro: AC_PROG_LIBTOOL
autoreconf: /usr/bin/autoconf failed with exit status: 1

Solution:
Install libtool:

[root@dyn854450 ~]# yum install libtool

Badly formed XML, there is no tag

Using glade-3 i got with this error/warning:

[walter@talent Projects]$ gtk-builder-convert uno.glade uno.xml

Traceback (most recent call last):

File "/usr/bin/gtk-builder-convert", line 772, in
sys.exit(main(sys.argv))
File "/usr/bin/gtk-builder-convert", line 760, in main
conv.parse_file(input_filename)
File "/usr/bin/gtk-builder-convert", line 161, in parse_file
self._parse()
File "/usr/bin/gtk-builder-convert", line 233, in _parse
assert glade_iface, ("Badly formed XML, there is "
AssertionError: Badly formed XML, there is no tag.

Try saving the file as a libglade project and then try again. It work'd for me.

TEDxBuenos Aires

The famous TED conference'll take place in Buenos Aires.  I'm already pre-registered.

http://tedxbuenosaires.org/?p=1001

7 of the Best Free Linux Calculators

One of the basic utilities supplied with any operating system is a desktop calculator. These are often simple utilities that are perfectly adequate for basic use. They typically include trigonometric functions, logarithms, factorials, parentheses and a memory function.
However, the calculators featured in this article are significantly more sophisticated with the ability to process difficult mathematical functions, to plot graphs in 2D and 3D, and much more.
The calculators also typically support the Reverse Polish notation (RPN). This is a prefix notation wherein every operator follows all of its operands. In other words, instead of pressing 6 + 8 and the enter key, in RPN you type in 6 8 +.

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