Hi all:
I find it hard to write POSIX-compliant shell scripts. The lack of the
'pipefail' flag is specially problematic. I have described this issue here:
http://rdiez.shoutwiki.com/wiki/Error_Handling_in_General_and_C%2B%2B_Exceptions_in_Particular#Set_the_pipefail_flag
Therefore, I write mo
d over many
years. But trying to change the shell requirement now is probably a big
nightmare.
Requiring a POSIX shell in the next version is an improvement, but POSIX
is too limiting to really help. It is 2018. No wonder so many people
want to ditch Autoconf!
Hi all:
I have this cross-compiling Autoconf project:
https://github.com/rdiez/JtagDue/tree/master/Project
I am not using Autoconf for portability, but mainly for handling C/C++
dependencies, so that not everything is rebuilt when I change one source file.
This is just an example project, I h
Hi all:
Macro AC_PROG_CC_C99 is obsolete as of Autoconf version 2.70 . Projects like
OpenOCD are resorting to this kind of workaround:
m4_version_prereq([2.70],[],[AC_PROG_CC_C99])
You can see it here:
https://sourceforge.net/p/openocd/code/ci/master/tree/configure.ac
Other projects are doi
Actually, the trouble is that OpenOCD is not consistently using the
m4_version_prereq solution.
You're getting the message from the unprotected call to AC_PROG_CC_C99 in
openocd-code/src/jtag/drivers/libjaylink/configure.ac.
I hadn't realised, many thanks for your help.
That file actually
Hi all:
I normally enable the following options in my shell scripts:
set -o errexit # Alias set -e
set -o nounset # Alias set -u
set -o pipefail # Now part of the POSIX/IEEE Std 1003.1-2024 specification too
I tried enabling them in my configure.ac, and I got weird errors. I gather that
most
27;s actually
the way to go in Autoconf:
From 4f0ee11990ad794b61c8499f0a4e3777c9edc282 Mon Sep 17 00:00:00 2001
From: R. Diez
Date: Sat, 30 Nov 2024 21:55:05 +0100
Subject: [PATCH] Enable "set -u" in bootstrap.
Signed-off-by: R. Diez
---
bootstrap | 5 -
1 file changed, 4 inserti
First of all, thanks for your help.
M4 macros are fine but as documented, AS_HELP_STRING does not expand its
second argument, so you need to be careful about quoting when you use it.
[...]
If the defaults can be determined by m4 then you can use m4 to generate
the help string.
[...]
All the he
Hi all:
I am trying to change the default of an AC_ARG_ENABLE option depending on the
host architecture.
I am using the Autoconf 2.71 which comes with Ubuntu 22.04. I want to
understand how Autoconf works, so let's not question for a moment whether
changing an option's default this way actual
