From: "Shot (Piotr Szotkowski)" <shot@...>
Date: 2008-12-29T02:50:35+09:00
Subject: Re: how to make installing Ruby easier for amateurs

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Ezra Zygmuntowicz:

> If you use this script you should change
> line 27 to add the --disable-pthreads flag
> ./configure --disable-pthreads

Are you sure? ./configure scripts for all of ruby-1.8.6-p287,
ruby-1.8.7-p72 and ruby-1.9.1-preview2 say that --enable-pthread
is an optional feature. Both 1.8 versions sport this snippet:

# Check whether --enable-pthread was given.
if test "${enable_pthread+set}" =3D set; then
  enableval=3D$enable_pthread; enable_pthread=3D$enableval
else
  enable_pthread=3Dno
fi

=E2=80=A6and both their ChangeLog files mention that the default
for --enable-pthread was changed to =E2=80=98no=E2=80=99 in November 2003.

1.9=E2=80=99s configure does indeed sport

# Check whether --enable-pthread was given.
if test "${enable_pthread+set}" =3D set; then
  enableval=3D$enable_pthread; enable_pthread=3D$enableval
else
  enable_pthread=3D$enable_pthread_default
fi

=E2=80=A6and enable_pthread_default is set to yes for non-MinGW builds, so
I guess the bottom line is: for future compatibility and just to be
sure, do indeed use --disable-pthread, but make sure it=E2=80=99s the singu=
lar
=E2=80=98--disable-pthread=E2=80=99, not the plural =E2=80=98--disable-pthr=
eads=E2=80=99.

-- Shot
--=20
Get me drunk one evening and get me to talk about Oracle
and charsets...          -- John Sinteur, hates-software

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