On Mar 24, 2007, at 19:19, Takeshi Enomoto wrote:
What is the difference between fftw-3 and fftw-3-single?
I am not the original author.
Fink has only one package for fftw3.
I will try to merge the two.
We could name the merge package fftw3 and
deprecate fftw-3 and fftw-3-single while keep them for a while.
The difference between fftw and fftw-single may be revealing:
$ diff -u math/{fftw,fftw-single}/Portfile
--- math/fftw/Portfile 2006-11-04 03:41:31.000000000 -0600
+++ math/fftw-single/Portfile 2007-03-02 18:12:40.000000000 -0600
@@ -1,12 +1,12 @@
-# $Id: Portfile 20399 2006-11-03 02:12:19Z [EMAIL PROTECTED] $
+# $Id: Portfile 22478 2007-03-02 05:16:40Z [EMAIL PROTECTED] $
-PortSystem 1.0
-name fftw
+PortSystem 1.0
+name fftw-single
version 2.1.5
-revision 2
+revision 1
categories math devel
maintainers [EMAIL PROTECTED]
-description Fast C routines to compute the Discrete Fourier
Transform
+description Single precision version of fftw
long_description \
FFTW is a C subroutine library for computing the Discrete
Fourier \
Transform (DFT) in one or more dimensions, of both real and
complex \
@@ -20,14 +20,21 @@
platforms darwin
+distname fftw-${version}
homepage http://www.fftw.org/
master_sites ${homepage} \
ftp://ftp.fftw.org/pub/fftw/ \
ftp://ftp.kusastro.kyoto-u.ac.jp/pub/src/GNU/fftw/
checksums md5 8d16a84f3ca02a785ef9eb36249ba433
-configure.args --enable-type-prefix --enable-threads \
- --disable-fortran --infodir=${prefix}/share/info
+
+depends_run port:fftw
+
+configure.args --enable-type-prefix \
+ --enable-threads \
+ --enable-float \
+ --disable-fortran \
+ --infodir=${prefix}/share/info
variant fortran {
depends_lib-append port:gcc34
@@ -38,3 +45,9 @@
}
}
+# Documentation conflicts with the double precision version,
+# so delete it. The documentation is installed by the dependency
+# port:fftw, above.
+
+post-destroot { file delete -force ${destroot}${prefix}/share }
+
It seems that the difference is that the -single version uses --
enable-float. Perhaps when using --enable-float, fftw installs itself
under a different name? And the comment before the post-destroot
phase explains why things are being deleted -- because both versions
install the same documentation, which would cause a conflict
otherwise. Maybe that's why fftw-single depends on fftw -- so that
fftw-single will still include the documentation.
Apparently there must be some reason why one would want fftw and fftw-
single to be able to be installed simultaneously.
If you want to try to combine these into a single port, you may want
to model your new port after the recently-updated zlib port, which
does in fact configure, make and install itself twice as well, with
different configure arguments:
http://trac.macosforge.org/projects/macports/browser/trunk/dports/
archivers/zlib/Portfile
Whatever you do should probably be the same for the fftw / fftw-
single and fftw-3 / fftw-3-single ports.
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