Hi all: I wanted to remove the usage of Automake macro AM_PROG_CC_C_O in configure.ac, which has been obsolete since Automake 1.14 released in June 2013 (around 11 years ago).
That macro used to check whether the C compiler supports the -c and -o options, but the check is now included in AC_PROG_CC. The check for the minimum Automake version is in line "AUTOMAKE_OPTIONS = gnu 1.6" in Makefile.am. If we remove AM_PROG_CC_C_O, we should increase the minimum Automake version to 1.14. Is that OK? We currently require Autoconf version 2.69, which was released in April 2012 (around 12 years ago). Autoconf does not seem to require any minimum Automake version, but requiring Automake version 1.14 should be fine nowadays (and actually since many years ago). Regards, rdiez
