From 00753313ac818cb1dd3cd976368b45c10b176ae9 Mon Sep 17 00:00:00 2001
From: Scott Alfter <scott@alfter.us>
Date: Fri, 26 Jan 2024 07:34:34 -0800
Subject: [PATCH] add notes for building on Alpine

---
 README.md                |  4 ++++
 lp_server-no-glibc.patch | 16 ++++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 lp_server-no-glibc.patch

diff --git a/README.md b/README.md
index c5f871e..58bf1e1 100644
--- a/README.md
+++ b/README.md
@@ -52,3 +52,7 @@ ENV{ID_SERIAL}=="?*", SYMLINK+="lp/printers/$env{ID_BUS}-$env{ID_SERIAL}"
 
 LABEL="persistent_printer_end"
 ```
+
+extra steps for building on Alpine Linux:
+
+```doas apk add gcc musl-dev autoconf make patch && patch -p0 <lp_server-no-glibc.patch```
diff --git a/lp_server-no-glibc.patch b/lp_server-no-glibc.patch
new file mode 100644
index 0000000..7bead68
--- /dev/null
+++ b/lp_server-no-glibc.patch
@@ -0,0 +1,16 @@
+patch to enable compilation on systems that don't use glibc, such as Alpine
+--- src/stty.c
++++ src/stty.c
+@@ -34,6 +34,12 @@
+ 
+ extern int errorcode;
+ 
++#if !defined(EXTA)
++#define EXTA B19200
++#endif
++#if !defined(EXTB)
++#define EXTB B38400
++#endif
+ 
+ #if USE_STTY == SGTTYB
+