diff -r 3ca291c0f7e3 configure
--- a/configure	Sun Jul 28 10:17:08 2019 +0100
+++ b/configure	Fri Mar 06 21:27:48 2020 +0100
@@ -9987,7 +9987,7 @@
 	    libc_version="GNU libc $libc_version (Debian)"
 	  	  fi
 	            if test -z "$libc_version"; then
-	    libc_version=`ls /lib/libc-*.so | sed -e 's,/lib/libc-\(.*\)\.so,\1,'`
+	    libc_version=`ls /lib{64,}/libc-*.so 2>/dev/null | head -n1 | sed -e 's,/lib\(64\|\)/libc-\(.*\)\.so,\2,'`
           fi
 	;;
 
diff -r 3ca291c0f7e3 configure.ac
--- a/configure.ac	Sun Jul 28 10:17:08 2019 +0100
+++ b/configure.ac	Fri Mar 06 21:27:48 2020 +0100
@@ -2347,7 +2347,7 @@
 	  fi
 	  dnl #### Tested on Debian, does this actually work elsewhere?  ;-)
           if test -z "$libc_version"; then
-	    libc_version=`ls /lib/libc-*.so | sed -e 's,/lib/libc-\(.*\)\.so,\1,'`
+	    libc_version=`ls /lib{64,}/libc-*.so 2>/dev/null | head -n1 | sed -e 's,/lib\(64\|\)/libc-\(.*\)\.so,\2,'`
           fi
 	;;