Re: [PATCH v2 1/1] configure.ac: configurable tooldir install path

[CC Mike]

Maybe we should switch newlib/cygwin to 2.71 as well, eventually?

We're in the process of preparing the next Cygwin release which should
be due end of this month.  After that I don't see any reason that we
can't bumb the configury to the latest autotools.


Corinna



On Jan  9 14:18, Frager, Neal wrote:
> Hi Jeff, Thomas,
> 
> Thank you both for your assistance with the patch below.
> 
> I am now dealing with a version conflict between newlib and buildroot.
> I hope you can help me find the best solution for it.
> 
> On my machine, I have tested the patch below using autoconf 2.69.
> 
> However, the goal is for this patch is to ultimately integrate with
> buildroot.
> 
> Currently, buildroot hardcodes the autoconf version that it builds
> and uses to version 2.71.
> 
> But with autoconf version 2.71, I get the following error from the
> newlib configure.ac because it requires specifically version 2.69:
> 
> >>> newlib-bare-metal 4.3.0 Autoreconfiguring
> configure.ac:34: error: Please use exactly Autoconf 2.69 instead of 2.71.
> config/override.m4:12: _GCC_AUTOCONF_VERSION_CHECK is expanded from...
> configure.ac:34: the top level
> 
> As you are newlib and buildroot maintainers, could you
> please help me with guidance about how to resolve this
> issue?  
> 
> I can easily make a patch to make the autoconf version used
> by buildroot configurable, but I would like your opinions
> before I proceed.
> 
> Thank you again for your support!
> 
> Best regards,
> Neal Frager
> AMD
> 
> > This patch is required to fix how the newlib headers are installed
> > when using a sysroot install directory.
> 
> > The cross compiler expects headers to be in
> > .../host/usr/arm-none-eabi/sysroot/usr/include/newlib.h
> > by default newlib installed the headers into
> > .../host/usr/arm-none-eabi/sysroot/usr/arm-none-eabi/include/newlib.h
> 
> > ${exec_prefix} provides the .../host/usr/arm-none-eabi/sysroot path
> > ${target_noncanonical} provides an extra arm-none-eabi/ that must be removed.
> 
> > With this patch, users can specify the tooldir path that is needed.
> 
> > Signed-off-by: Neal Frager <[email protected]>
> > Co-developed-by: Chris Wardman <[email protected]>
> > ---
> > V1->V2:
> > - migrated patch to configure.ac
> > - changed option name to --with-tooldir=PATH
> > ---
> > configure.ac | 13 ++++++++++++-
> > 1 file changed, 12 insertions(+), 1 deletion(-)
> 
> > diff --git a/configure.ac b/configure.ac
> > index f1bb72100..9a01c1562 100644
> > --- a/configure.ac
> > +++ b/configure.ac
> > @@ -2599,7 +2599,18 @@ esac
>  
> > # Some systems (e.g., one of the i386-aix systems the gas testers are
> > # using) don't handle "\$" correctly, so don't use it here.
> > -tooldir='${exec_prefix}'/${target_noncanonical}
> > +AC_ARG_WITH([tooldir], 
> > +  [AS_HELP_STRING([--with-tooldir=PATH],
> > +		  [use given path to install target tools after build])],
> > +  [case x"$withval" in
> > +     x/*) ;;
> > +     *)
> > +       with_tooldir=
> > +       AC_MSG_WARN([argument to --with-tooldir must be an absolute path])
> > +       ;;
> > +   esac],
> > +  [with_tooldir='${exec_prefix}'/${target_noncanonical}])
> > +tooldir='${with_tooldir}'
> > build_tooldir=${tooldir}
>  
> > # Create a .gdbinit file which runs the one in srcdir
> > -- 
> > 2.25.1