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ianlancetaylor / libbacktrace

A C library that may be linked into a C/C++ program to produce symbolic backtraces
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Fails to build with autoconf 2.71 #71

Closed lazka closed 3 years ago

lazka commented 3 years ago 
> autoreconf -vfi
autoreconf: export WARNINGS=
autoreconf: Entering directory '.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: aclocal --force -I config
configure.ac:33: error: Please use exactly Autoconf 2.69 instead of 2.71.
config/override.m4:12: _GCC_AUTOCONF_VERSION_CHECK is expanded from...
configure.ac:33: the top level
autom4te: error: /usr/bin/m4 failed with exit status: 1
aclocal-1.15: error: echo failed with exit status: 1
autoreconf: error: aclocal failed with exit status: 1

If that's not supported feel free to close.

ianlancetaylor commented 3 years ago

This is working as intended. libbacktrace uses the exact configury versions as used by GCC.

lazka commented 3 years ago

ok, thanks, I'll patch this downstream then.

ianlancetaylor commented 3 years ago

I've reconsidered this. While the version of libbacktrace in the GCC sources should require autoconf 2.69, there's no special reason to require 2.69 in the standalone libbacktrace. I've commented out the code (copied from GCC) that requires exactly 2.69.

That said using autoconf 2.71 reports some warnings about obsolete autoconf commands. I don't plan to fix those unless and until GCC starts avoiding them.

lazka commented 3 years ago

ok, thanks!