added BSD compatibility

INSTALL.rst

@@ -0,0 +1,40 @@
+Installation
+=============
+
+To install ``uirc``, you need to have the following items:
+
+* A C compiler (``uirc`` uses ``gcc`` by default, but you can change what compiler you use in the `config.mk file <config.mk>`_.)
+* The cURL libraries
+* The ``stb`` libraries
+
+If you want to install all three at once, follow the instructions for your system below.
+
+Debian/Debian-based (Ubuntu, Pop!_OS, etc.)
+--------------------------------------
+.. code:: bash
+
+  $ sudo apt install git libcurl3-gnutls libstb-dev
+
+RHEL-based (Fedora, CentOS, etc.)
+----------------------------------
+.. code:: bash
+
+  $ sudo dnf install git 
+
+OpenSUSE
+---------
+.. code:: bash
+
+  $ sudo zypper install
+
+Arch/Arch-based (Manjaro, EndeavourOS, etc.)
+---------------------------------------------
+.. code:: bash
+
+  $ sudo pacman -S
+
+FreeBSD/OpenBSD
+----------------
+.. code:: fish
+
+  $ doas pkg_add

Makefile

@@ -5,10 +5,10 @@ include config.mk
 SRC = uirc.c
 
 uirc: ${SRC}
-	${CC} -l curl -o uirc -O ${SRC} -lm
+	${CC} ${OPTIONS} -l curl -o uirc -O ${SRC} -lm
 
 debug: uirc
-	${CC} -g -l curl -o d_uirc -O ${SRC} -lm
+	${CC} -g ${OPTIONS} -l curl -o d_uirc -O ${SRC} -lm
 	gdb d_uirc
 	rm d_uirc
 

config.mk

@@ -7,4 +7,9 @@ INCLUDE_PREFIX = /usr/include
 MANPREFIX = ${PREFIX}/share/man
 
 # compiler, default is gcc
+# if you are on BSD, you might want to change this to cc unless you have gcc installed.
 CC = gcc
+
+# other options you want to add
+# uncomment the following line if you are building on BSD
+#OPTIONS = -L /usr/local/lib -I /usr/local/include