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annotate README.Cygwin @ 11542:695141f1c05c ss-3-3-55

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snapshot 3.3.55
author John W. Eaton <jwe@octave.org>
date Sat, 15 Jan 2011 04:53:04 -0500
parents bfbe441f3706
children 21dec063e89f
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1 Starting with version 3.0.1, Octave is once again part of the normal
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2 net distribution of Cygwin, available from http://www.cygwin.com.
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3
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4 It is possible to build Octave from source on Windows systems with Cygwin,
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5 but with the old gcc-3.4.4-3 compiler there are some performance
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6 problems related to the way C++ exception handling is implemented.
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7 This is a known problem with a long history and it is STRONGLY
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8 encouraged to use gcc-4.3.2-1 or later.
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9
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10 Current binary versions are built with gcc-4.3.4-3 while
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11 binary version 3.0.2-2 was built with gcc-4.3.2-1.
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12
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13 The latest development Octave development sources (octave-3.3.54+)
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14 are built with:
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15
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16 configure --enable-shared \
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17 --enable-float-truncate \
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18 CC=gcc-4 F77=gfortran-4 CXX=g++-4 CPP=cpp-4
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19 lt_cv_deplibs_check_method=pass_all \
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20 LDFLAGS=-no-undefined
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21
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22 "--enable-float-truncate" is needed for the following bug:
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23 http://thread.gmane.org/gmane.comp.gnu.octave.bugs/12361/focus=12404
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24 Without it, one of the quadgk test will fail as
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25 "a=a" could be false due to truncation problems with
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26 complex numbers.
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29 "lt_cv_deplibs_check_method=pass_all" is needed to bypass
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30 incorrect libtool detection of system capabilities and
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31 to allow shared libs building.
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32
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33 Octave-3.2.4 was built using:
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34
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35 configure --enable-shared \
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36 --without-fltk \
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37 --without-framework-opengl \
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38 CC=gcc-4 F77=gfortran-4 CXX=g++-4 CPP=cpp-4
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39 CFLAGS="-Dtimezone=_timezone"
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43
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44 Current Cygwin package maintainer for Octave:
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45
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46 Marco Atzeri
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47 http://matzeri.altervista.org
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49 Marco Atzeri
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50 marco_atzeri@yahoo.it
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51 Italy
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53 Mon Jan 3 18:53:41 WEST 2011