From 2d3c39207f76ff036d70e8c8aff914ad5a0b17c8 Mon Sep 17 00:00:00 2001
From: Cody Boone Ferguson <53008573+xexyl@users.noreply.github.com>
Date: Thu, 6 Jul 2023 10:59:58 -0700
Subject: [PATCH] Add -lm to 2013/morgan1/Makefile

Not all systems implicitly link in libm so this is necessary for those
systems.
---
 2013/morgan1/Makefile | 2 +-
 thanks-for-fixes.md   | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/2013/morgan1/Makefile b/2013/morgan1/Makefile
index 3cd386f13..07364fe30 100644
--- a/2013/morgan1/Makefile
+++ b/2013/morgan1/Makefile
@@ -73,7 +73,7 @@ CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
 
 # Libraries needed to build
 #
-LIBS= -L ${X11_LIBDIR} -lX11
+LIBS= -L ${X11_LIBDIR} -lX11 -lm
 
 # C compiler to use
 #
diff --git a/thanks-for-fixes.md b/thanks-for-fixes.md
index 0329c88d8..7ce556a73 100644
--- a/thanks-for-fixes.md
+++ b/thanks-for-fixes.md
@@ -1294,6 +1294,11 @@ removed from SDL2 so the Makefile has to use `sdl-config` and not `sdl2-config`.
 This means that to be strictly technical, the removal of `localtime()` is not
 necessary but this change was left in place anyway.
 
+## [2013/morgan1](2013/morgan1/morgan1.c) ([README.md](2013/morgan1/README.md))
+
+Cody added explicit linking of libm (`-lm`) as not all systems do this
+implicitly (linux doesn't seem to but macOS does).
+
 
 ## [2014/maffiodo1](2014/maffiodo1/maffiodo1.c) ([README.md](2014/maffiodo1/README.md]))