install_prereq: Support package manager DNF and yum option strict=1.

This re-enables the script ./contrib/scripts/install_prereq on Fedora 22 and
newer, and on RHEL/CentOS when the option strict=1 was set for yum install.

ASTERISK-27598
Reported by: Hunter Stevens, Said Masoud

Change-Id: I40f9517122aaa6906e8fc0962b4b8008dfddb368

diff --git a/contrib/scripts/install_prereq b/contrib/scripts/install_prereq
index e3b217c082d72bacd3a46da776361e3cf1c548bb..6b1c413036f7c8d562bc7dbb424ce03b1d04dcf6 100755 (executable)
--- a/contrib/scripts/install_prereq
+++ b/contrib/scripts/install_prereq
@@ -125,7 +125,7 @@ handle_debian() {
 handle_rh() {
        extra_packs=`check_installed_rpms $PACKAGES_RH`
        if [ x"$extra_packs" != "x" ] ; then
-               $testcmd yum install -y $extra_packs
+               $testcmd yum install --skip-broken --assumeyes $extra_packs
        fi
 }