From 31367c0b2731c7e28b4ae0fdbb6b31742499f49a Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Sun, 13 Dec 2020 10:46:07 -0500
Subject: patches: Use `tail -n`

---
diff --git a/changelog b/changelog
index 636c39a..ebe6ffc 100644
--- a/changelog
+++ b/changelog
@@ -6,6 +6,8 @@ lilo (24.2-2) trunk
   * Organize packages into sections.
   * lilo: Use automatic shared library dependencies (for
     "/usr/libexec/lilo/blkid").
+  * Add a patch to fix build if old-style `tail -[number]` is
+    unsupported.
 
  -- Patrick McDermott <patrick.mcdermott@libiquity.com>  Sun, 13 Dec 2020 10:18:41 -0500
 
diff --git a/patches/01_use-tail-n.patch b/patches/01_use-tail-n.patch
new file mode 100644
index 0000000..db153b8
--- /dev/null
+++ b/patches/01_use-tail-n.patch
@@ -0,0 +1,18 @@
+Author: Patrick McDermott <patrick.mcdermott@libiquity.com>
+Subject: Use `tail -n`
+
+`tail -[number]` is no longer specified by POSIX and may be disabled in
+ProteanOS.
+
+diff -Naur src.orig/src/Makefile src/src/Makefile
+--- src.orig/src/Makefile	2015-11-21 18:50:25.000000000 -0500
++++ src/src/Makefile	2020-12-13 10:42:04.445635494 -0500
+@@ -161,7 +161,7 @@
+ 
+ flags.i:	../test.img Makefile version $(CFILES) $(HFILES)
+ 	echo "#define CFLAGS \"" $(CFLAGS) "\"" >flags.i
+-	tail -$$((`wc -l <Makefile`-`sed /\#\#\#/q <Makefile | wc -l`)) \
++	tail -n $$((`wc -l <Makefile`-`sed /\#\#\#/q <Makefile | wc -l`)) \
+ 	  <Makefile | grep -v "0x" >$(TMP)
+ 	for i in $(CFILES) $(HFILES) ; do cat $$i >>$(TMP) ; done
+ 	echo "#define CSOURCE " `./version $(TMP)` >>flags.i
--
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