ssf

_POSIX_C_SOURCE now skips OpenBSD so <sys/sysctl.h> exposes u_long and friends

diff --git a/Makefile b/Makefile
index 263fd99..002e9da 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ BIN = ssf
 all: options ${BIN}
 
 options:
-	@echo "sysinfo build options:"
+	@echo "ssf build options:"
 	@echo "CC       = ${CC}"
 	@echo "CPPFLAGS = ${CPPFLAGS}"
 	@echo "CFLAGS   = ${CFLAGS}"
diff --git a/ssf.c b/ssf.c
index 6b86d4a..d77f7b0 100644
--- a/ssf.c
+++ b/ssf.c
@@ -1,4 +1,6 @@
+#ifndef __OpenBSD__
 #define _POSIX_C_SOURCE 200809L
+#endif
 
 #include <pwd.h>
 #include <stdio.h>
@@ -36,7 +38,7 @@
 #define CLR_YELLOW "\033[1;33m"
 
 #define LEN(x) (sizeof(x) / sizeof(*(x)))
-#define MAX(a,b) ((a) > (b) ? (a) : (b))
+#define MAXIMUM(a,b) ((a) > (b) ? (a) : (b))
 #define UNKNOWN(buf) strcpy((buf), "unknown")
 #define APPEND(buf, fmt, ...) \
 	do { \
@@ -247,7 +249,7 @@ memory(struct Info *i)
 	}
 #elif defined(__OpenBSD__)
 	long pagesize = 0;
-	u_int pagecount = 0, freecount = 0;
+	unsigned int pagecount = 0, freecount = 0;
 	unsigned long long total, freep, used;
 	size_t len;
 
@@ -408,7 +410,7 @@ display(struct Info *i, int m, int s, char *k)
 	}
 
 	n = s ? short_total : total;
-	max_lines = MAX(ascii_lines, n);
+	max_lines = MAXIMUM(ascii_lines, n);
 	for (j = 0; j < max_lines; j++) {
 		len = 0;
 		pad = ascii_width;