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Re: Fw: bug in texi2dvi, and hack patch
- From: "Eli Zaretskii" <eliz at gnu dot org>
- To: Stepan Kasal <kasal at ucw dot cz>
- Cc: karl at freefriends dot org, dave at boost-consulting dot com, bug-texinfo at gnu dot org, akim at epita dot fr, ebb9 at byu dot net, cygwin at cygwin dot com
- Date: Mon, 24 Jan 2005 21:58:16 +0200
- Subject: Re: Fw: bug in texi2dvi, and hack patch
- References: <41EE544A.2000306@byu.net> <200501240115.j0O1FWh15382@f7.net> <20050124083421.GA2986@matsrv.math.cas.cz>
- Reply-to: Eli Zaretskii <eliz at gnu dot org>
> Date: Mon, 24 Jan 2005 09:34:21 +0100
> From: Stepan Kasal <kasal@ucw.cz>
> Cc: dave@boost-consulting.com, bug-texinfo@gnu.org, akim@epita.fr, ebb9@byu.net,
> cygwin@cygwin.com
>
> Fix the problem exactly as reported:
> the configure script tests for the problem:
>
> AC_SUBST(TESTF, "test -f")
> testfile=conf$$.exe
> touch $testfile
> if test -x $testfile; then
> test -f $testfile || TESTF=:
> fi
> rm -f $testfile
>
> and use
> for dir in $PATH; do
> if test -x "$dir/$1" && @TESTF@ "$dir/$1"; then
> or
> testf="@TESTF@"
> ...
> for dir in $PATH; do
> if test -x "$dir/$1" && $testf "$dir/$1"; then
>
> in texi2dvi.in .
Could you please annotate this with explanations of how/why this is
supposed to work correctly? I have trouble following the convoluted
logic, perhaps because I don't know enough about Autoconf. (I also
don't know what results you expect from "test -x foo.exe" when foo.exe
is an empty file produced by "touch foo.exe".)
> Another way to fix the problem is to adopt the solution used by autoconf:
> make sure that the variable $ac_executable_extensions, which is set in
> config.site on some platforms, gets substituted:
>
> AC_SUBST(ac_executable_extensions)
>
> and put the following to texi2dvi.in:
>
> for dir in $PATH; do
> for exec_ext in '' @ac_executable_extensions@; do
> if test -f "$dir/$1" && test -x "$dir/$1"; then
> ...
I'm okay with this method, provided that ac_executable_extensions can
be computed reliably (you didn't say how).
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