More autoconf modernizations; upgrade AC_PREREQ to 2.69
commitcae5d061849ba0c7150f0089433cceeff2e602be
authorH. Peter Anvin <hpa@linux.intel.com>
Wed, 8 Nov 2017 18:22:10 +0000 (8 10:22 -0800)
committerH. Peter Anvin <hpa@linux.intel.com>
Wed, 8 Nov 2017 18:22:10 +0000 (8 10:22 -0800)
tree49f65fcf18f38b2c614a63c3932a1b9c4e0258cd
parentceeaf11e66d7e1b7ad511446f308337981f71a71
More autoconf modernizations; upgrade AC_PREREQ to 2.69

Make further autoconf rule improvements and update the required
version of autoconf to 2.69.  That version is now 5+ years old and
although there might be older versions which have the prerequisite
macros they are known to have lots of bugs, and we can't really test
them.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
.gitignore
Makefile.in
autogen.sh
configure.ac