Re: cross-compiling on OS X, make menuconfig fails

[Roland Kuhn]

Hi Steve!

On 3 May 2008, at 08:55, SL Baur wrote:

> On 4/29/08, Sam Ravnborg <sam@xxxxxxxxxxxx> wrote:
> > > Good grief, folks...
> >
> > Thanks Al.
> > I've queued up the following patch.
> >
> >        Sam
> >
> > commit c99cc32e0d92f5fdbdd39a7f42cfff869062fff5
> > Author: Sam Ravnborg <sam@xxxxxxxxxxxxxxxxxxx>
> > Date:   Tue Apr 29 20:02:44 2008 +0200
> >
> >    kconfig: made check-lxdialog more portable
> >
> >    OS-X shell did not like 'echo -e' so implement
> >    suggestion from Al Viro to use a more portable construct.
> >
> >    Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> >    Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
> >
> > diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/ 
> > kconfig/lxdialog/check-lxdialog.sh
> > index 62e1e02..5552154 100644
> > --- a/scripts/kconfig/lxdialog/check-lxdialog.sh
> > +++ b/scripts/kconfig/lxdialog/check-lxdialog.sh
> > @@ -36,8 +36,10 @@ trap "rm -f $tmp" 0 1 2 3 15
> >
> >  # Check if we can link to ncurses
> >  check() {
> > -       echo -e " #include CURSES_LOC \n main() {}" |
> > -           $cc -xc - -o $tmp 2> /dev/null
> > +        $cc -xc - -o $tmp 2>/dev/null <<'EOF'
> >
> > +#include CURSES_LOC
> > +main() {}
> > +EOF
> >
> >        if [ $? != 0 ]; then
> >            echo " *** Unable to find the ncurses libraries or  
> > the"       1>&2
> >            echo " *** required header  
> > files."                            1>&2
>
> This looks O.K.  As a note, whatever behavior is being described here
> is system dependent, because on my installation of that other OS,  
> `echo -e'
> works fine whether it is invoked as /bin/bash or /bin/sh which  
> appears to be
> a strict copy of /bin/bash.
>
> $ uname -v
> Darwin Kernel Version 8.11.1: Wed Oct 10 18:23:28 PDT 2007;
> root:xnu792.25.20~1/RELEASE_I386
Yes, they changed that between Tiger and Leopard, where I have

---
$ uname -v
Darwin Kernel Version 9.2.2: Tue Mar  4 21:17:34 PST 2008;  
root:xnu-1228.4.31~1/RELEASE_I386
$ /bin/bash -c 'echo -e "buh\n"'
buh

$ /bin/sh -c 'echo -e "buh\n"'
-e buh

$ /bin/echo -e "buh\n"
-e buh\n
---

The second one is POSIX+XSI, the third one plain POSIX. The first one  
is what people are used to ;-)

Ciao,
                    Roland

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