man(1) needs to check for .so files not only in the first line

PR: 279182 Some manual pages have a copyright notice or commit id before including other files with the .so macro. We need to skip comments and empty lines at the beginning of the manpage while checking for the first .so macro. MFC after: 1 week
freebsd · May 26, 2024 · 73eb538 · 73eb538
1 parent cadd2ca
commit 73eb538
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/usr.bin/man/man.sh b/usr.bin/man/man.sh
@@ -322,7 +322,7 @@ man_check_for_so() {
 	# We need to loop to accommodate multiple .so directives.
 	while true
 	do
-		line=$($cattool "$manpage" 2>/dev/null | head -n1)
+		line=$($cattool "$manpage" 2>/dev/null | grep -E -m1 -v '^\.\\"[ ]*|^[ ]*$')
 		case "$line" in
 		.so*)	trim "${line#.so}"
 			decho "$manpage includes $tstr"