I just noticed this when using autoconf-2.61 ... does AS_ECHO_N require a newer
version of autoconf? Can we work around that requirement?
...
configure:4924: error: possibly undefined macro: AS_ECHO_N
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation.
autoreconf: /usr/bin/autoconf failed with exit status: 1
...
On Jan 22, 2012, at 5:16 AM, Jon TURNEY <[email protected]> wrote:
> xorg-macros.m4.in | 34 +++++++++++++++++++++-------------
> 1 file changed, 21 insertions(+), 13 deletions(-)
>
> New commits:
> commit a1809fde56e45639556a44fd3c3ef9213204c5a9
> Author: Jon TURNEY <[email protected]>
> Date: Mon Jan 2 19:42:10 2012 +0000
>
> Cache the results of checking compiler flag support in XORG_TESTSET_CFLAG
>
> Since checking all those warning flags takes an amount of time I find
> irritating,
> here is an attempt at caching the results of checking compiler warning
> flag support
>
> A couple of aspects which need definitely need review or testing:
>
> * I've tried to get things right when not the first flag in the list of
> alternates is
> supported, but this really needs testing with a compiler other than gcc
>
> * The cache variable naming policy is a bit opaque me, so the names used
> may need corecting
>
> * I've tried to be careful, but who knows what portability sins I have
> committed :-)
>
> This change reduces the time to run the ./configure script produced from a
> configure.ac
> containing just
>
> AC_INIT([test], 1.0)
> XORG_COMPILER_FLAGS
> XORG_CWARNFLAGS
> XORG_STRICT_OPTION
> AC_OUTPUT()
>
> from ~60s to ~20s on my cygwin machine, and from ~15s to ~9s on a linux VM
> running on the
> same hardware
>
> v2: AS_TR_SH transforms characters which are invalid in shell variable
> names, so we don't
> have to use sed to transform spaces ourself
>
> Signed-off-by: Jon TURNEY <[email protected]>
> Reviewed-by: Gaetan Nadon <[email protected]>
>
> _______________________________________________
> xorg-commit mailing list
> [email protected]
> http://lists.x.org/mailman/listinfo/xorg-commit
>
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