POSIX

Makefile

@@ -1,7 +1,21 @@
-CFLAGS=-O2 -Wall -Wextra -lX11 -lwayland-client -lpci
+UNAME_S := $(shell uname -s)
+
+CFLAGS=-O2 -Wall -Wextra -lX11 -lpci
 PREFIX=/usr
 CACHE=$(shell if [ "$$XDG_CACHE_HOME" ]; then echo "$$XDG_CACHE_HOME"; else echo "$$HOME"/.cache; fi)
 
+ifeq ($(UNAME_S),Linux)
+    CFLAGS += -lwayland-client -D LINUX
+endif
+ifeq ($(UNAME_S),FreeBSD)
+    PREFIX=/usr/local
+    CFLAGS += -D FREEBSD
+endif
+ifeq ($(UNAME_S),OpenBSD)
+    PREFIX=/usr/local
+    CFLAGS += -D OPENBSD
+endif
+
 all: paleofetch
 
 clean:

paleofetch.c

@@ -7,15 +7,25 @@
 #include <errno.h>
 
 #include <sys/utsname.h>
+#ifdef __linux__
 #include <sys/sysinfo.h>
+#elif __FreeBSD__
+#elif __OpenBSD__
+#endif
 #include <sys/statvfs.h>
 
+#ifdef __linux__
 #include <pci/pci.h>
+#elif __FreeBSD__
+#elif __OpenBSD__
+#endif
 
 #include <X11/Xlib.h>
 #include <X11/Xatom.h>
+#ifdef __linux__
 #include <wayland-client.h>
 #include <wayland-client-protocol.h>
+#endif
 
 #include "paleofetch.h"
 #include "config.h"