--- loncom/build/distprobe	2019/07/02 19:40:31	1.23
+++ loncom/build/distprobe	2021/12/21 13:57:47	1.26
@@ -2,7 +2,7 @@
 #
 # The LearningOnline Network with CAPA
 #
-# $Id: distprobe,v 1.23 2019/07/02 19:40:31 raeburn Exp $
+# $Id: distprobe,v 1.26 2021/12/21 13:57:47 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -64,12 +64,23 @@ if (-e '/etc/oracle-release') {
         $dist = 'rhes'.$1;
     } elsif ($versionstring =~ /Red Hat Enterprise Linux release (\d+)/) {
         $dist = 'rhes'.$1;
-    } elsif ($versionstring =~ /CentOS(?:| Linux) release (\d+)/) {
-        $dist = 'centos'.$1;
+    } elsif ($versionstring =~ /CentOS(| Linux| Stream) release (\d+)/) {
+        $dist = 'centos'.$2;
+        if ($1 eq ' Stream') {
+            $dist .= '-stream';
+        }
     } elsif ($versionstring =~ /Scientific Linux (?:SL )?release ([\d.]+) /) {
         my $ver = $1;
         $ver =~ s/\.\d+$//;
         $dist = 'scientific'.$ver;
+    } elsif ($versionstring =~ /Rocky Linux release ([\d.]+)/) {
+        my $ver = $1;
+        $ver =~ s/\.\d+$//;
+        $dist = 'rocky'.$ver;
+    } elsif ($versionstring =~ /AlmaLinux release ([\d.]+)/) {
+        my $ver = $1;
+        $ver =~ s/\.\d+$//;
+        $dist = 'alma'.$ver;
     } else {
         warn('Unable to interpret /etc/redhat-release '.
              'to determine system type');