I get a build failure using Ubuntu 10.04 LTS:
checking for library containing CRYPTO_free... no
checking for SSL_library_init in -lssl... no
configure: The OpenSSL library is required to build the Sage Notebook.
configure: You might need to execute one of the following (or the
equivalent for your
configure: operating system):
configure: sudo apt-get install libssl-dev
configure: sudo yum install openssl-devel
configure: error: Exiting, since the OpenSSL library was not found.
You do not have all of the prerequisites needed to build Sage
from source. See the errors above.
If you would like to try the build anyway (to help porting)
export the variable 'SAGE_PORT' to something non-empty.
make[1]: *** [installed/prereq-1.1] Error 1
make[1]: Leaving directory `/home/wdj/sagefiles/sage-5.3.beta1/spkg'
real 0m4.097s
user 0m0.900s
sys 0m0.380s
Error building Sage.
make: *** [build] Error 1
Is it time for me to upgrade ubuntu?
> == Tickets ==
> * We closed 61 tickets in this release. For details, see
> http://boxen.math.washington.edu/home/release/sage-5.3.beta1/tickets....
> Closed tickets:
> #418: Martin Albrecht: Add SAT Solvers [Reviewed by Alexander Dreyer]
> #3358: [with patch, needs review] Improve the building of eclib
> (shared/static objects) [Reviewed by François Bissey]
> #10234: Notebook does not remove files for deleted plots [Reviewed by
> Andrey Novoseltsev]
> #12623: PIL package doesn't know about debian multiarch [Reviewed by
> Julien Puydt]
> #12624: gdmodule package doesn't know about debian multiarch [Reviewed
> by Julien Puydt]
> #13003: numerical evaluation of `erf` crashes PARI at large numbers
> [Reviewed by Benjamin Jones]
> Merged in sage-5.3.beta1:
> #5512: Mike Hansen: CombinatorialSpeciesStructures with different labels
> are equal [Reviewed by Laurent Pierron, Guy Achard]
> #11310: Jeroen Demeyer, Volker Braun: Monkey-patch catchall `except:`
> statements so they at least don't catch `KeyboardInterrupt` errors
> [Reviewed by Keshav Kini]
> #12251: Mark Shimozono, Anne Schilling: Implementation of Littelmann
> path model for crystals [Reviewed by Anne Schilling, Mark Shimozono]
> #12454: Timo Jolivet: A draw_rauzy_fractal method for WordMorphism
> [Reviewed by Vincent Delecroix, Sébastien Labbé]
> #12549: Julian Rueth: p-adic is_zero doesn't normalize at the beginning
> [Reviewed by David Roe]
> #12811: Daniel Smertnig: (reduced) norm of quaternion ideals is broken
> [Reviewed by Aly Deines]
> #12861: Daniel Smertnig: maximal_order of quaternion algebras should be
> more general [Reviewed by Aly Deines]
> #12924: Viviane Pons: SchubertPolynomialRing causes symmetrica and Sage
> to crash on bad input [Reviewed by Mike Hansen]
> #13067: Nathann Cohen: is_strongly_regular [Reviewed by Frédéric Chapoton]
> #13160: François Bissey: upgrade cvxopt to 1.1.5 [Reviewed by Volker Braun]
> #13192: Birk Eisermann: some code clean up for sage/graphs/graph.py
> [Reviewed by Nathann Cohen, Karl-Dieter Crisman]
> #13202: Alexander Dreyer, Charles Bouillaguet: conversion problems in
> BooleanPolynomialRing with degrevlex order [Reviewed by Martin Albrecht,
> Charles Bouillaguet]
> #13242: Jeremy Martin, Lauren Keough: Determine if an edge in a graph is
> a cut-edge (bridge) [Reviewed by David Coudert]
> #13293: Julian Rueth: Change add_big_oh to add_bigoh in padic
> factorization code [Reviewed by David Roe]
> #13310: John Palmieri: `:trac:` links are broken [Reviewed by Punarbasu
> Purkayastha]
> #13315: Jeroen Demeyer: Clean up MANIFEST.in, spkg-delauto and spkg-dist
> [Reviewed by John Palmieri]
> #13328: Volker Braun: Remove wrong and outdated SELinux advice from
> installation guide. [Reviewed by Mike Hansen]
> #13329: Jeroen Demeyer, Volker Braun: Add OpenSSL prereq check [Reviewed
> by Volker Braun, Jeroen Demeyer]
> #13330: Jean-Pierre Flori: flint-1.5.2.p0.spkg installation fails on
> Cygwin [Reviewed by Dmitrii Pasechnik]
> #13334: Jean-Pierre Flori: ecl.pyx won't build on Cygwin [Reviewed by
> Dmitrii Pasechnik]
> #13335: Jean-Pierre Flori: matrix_*.pyx do not compile on Cygwin
> [Reviewed by Dmitrii Pasechnik]
> #13336: Jean-Pierre Flori: farey_symbol.pyx fails to build on Cygwin
> [Reviewed by Dmitrii Pasechnik]
> #13337: Jean-Pierre Flori: expression.pyx fails to build on Cygwin
> [Reviewed by Dmitrii Pasechnik]
> #13338: Jean-Pierre Flori: stl_vector.pyx fails on Cygwin [Reviewed by
> Volker Braun]
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