qd-2.3.23-bp156.2.4

- update to 2.3.23:
  * Fixed underlinking of libqdmod and libqd_f_main (bug).
  * Don't set CC=$CXX (fixes a new build issue with autoconf-2.71, bug).
  * Fixed typo in the rule to build docs/qd.pdf (bug).
  * Fixed "make dist" rule (built headers cannot be dist'd, bug).
  * Fixed the build with --disable-inline (bug).
  * Don't add "-O2" to CXXFLAGS or FCFLAGS when they're empty (portability).
  * Don't manually search for compilers & flags in configure.ac (portability).
  * Removed the --enable-warnings and --enable-debug flags (portability).
  * Modernized all of configure.ac for use with autoconf-2.71 (housekeeping).

- Update to version 2.3.22
  Changes for 2.3.22
    Made changes suggested by Vasiliy Sotnikov
  Changes for 2.3.21
    Changed renorm in include/qd/qd_inline.h
  Changes for 2.3.20
    added #include <string.h> to quadt_test.cpp
    changed references to 2.3.20 from 2.3.18
  Changes for 2.3.19
  - Updated qd_real.cpp and dd_real.cpp to fix a
    buffer overflow problem.
  Changes for 2.3.18
  - Updated qd_real.cpp and dd_real.cpp to fix a problem in output.
  Changes for 2.3.17
  - updated qd_real.cpp, to fix a problem with improper treatment of
    negative arguments in nroot.
  Changes for 2.3.16
  - Updated dd_real.cpp, to fix a problem with inaccurate values
    of tanh for small arguments.
- License changed to BSD-3-Clause-LBNL

- Update to version 2.3.15
  * bugfix release, see included ChangeLog for details

- spec file enhancement

- fix devel package dependency

- fix Source0 file extension

- first package