diff --git a/examples/startrek.c b/examples/startrek.c
index f4f35a8bd..572c53597 100644
--- a/examples/startrek.c
+++ b/examples/startrek.c
@@ -107,7 +107,7 @@ void phaser_control(void);
 void photon_torpedoes(void);
 void torpedo_hit(void);
 void damage_control(void);
-void sheild_control(void);
+void shield_control(void);
 void library_computer(void);
 void galactic_record(void);
 void status_report(void);
@@ -137,7 +137,7 @@ void sub2(void);
 void showfile(char *filename);
 int openfile(char * sFilename, char * sMode);
 void closefile(void);
-int getline(char *s);
+int get_line(char *s);
 void randomize(void);
 int get_rand(int iSpread);
 double rnd(void);
@@ -203,7 +203,7 @@ void
 reads(char* buffer)
 {
   fflush(stdout);
-  gets(buffer);
+  fgets(buffer, sizeof(string), stdin);
 }
 
 /* Main Program */
@@ -292,7 +292,7 @@ new_game(void)
       else if (! strncmp(sTemp, "tor", 3))
         photon_torpedoes();
       else if (! strncmp(sTemp, "she", 3))
-        sheild_control();
+        shield_control();
       else if (! strncmp(sTemp, "dam", 3))
         damage_control();
       else if (! strncmp(sTemp, "com", 3))
@@ -307,7 +307,7 @@ new_game(void)
       printf("  lrs - Long Range Sensors\n");
       printf("  pha - Phasers\n");
       printf("  tor - Photon Torpedoes\n");
-      printf("  she - Sheild Control\n");
+      printf("  she - Shield Control\n");
       printf("  dam - Damage Control\n");
       printf("  com - Library Computer\n");
       printf("  xxx - Resign Command\n");
@@ -1206,14 +1206,14 @@ damage_control(void)
 } 
 
 void
-sheild_control(void)
+shield_control(void)
 {
   int i;
   string sTemp;
 
   if (d[7] < 0.0)
     {
-      printf("Sheild Control inoperable\n");
+      printf("Shield Control inoperable\n");
       return;
     }
 
@@ -1229,15 +1229,15 @@ sheild_control(void)
 
   if (i < 0 || s == i)
     {
-      printf("<Sheilds Unchanged>\n\n");
+      printf("<Shields Unchanged>\n\n");
       return;
     }
 
   if (i >= e + s)
     {
-      printf("Sheild Control Reports:\n");
+      printf("Shield Control Reports:\n");
       printf("  'This is not the Federation Treasury.'\n");
-      printf("<Sheilds Unchanged>\n\n");
+      printf("<Shields Unchanged>\n\n");
       return;
     }
 
@@ -1776,7 +1776,7 @@ get_device_name(void)
 {
   static char * device_name[] = {
     "", "Warp Engines","Short Range Sensors","Long Range Sensors",
-    "Phaser Control","Photon Tubes","Damage Control","Sheild Control",
+    "Phaser Control","Photon Tubes","Damage Control","Shield Control",
     "Library-Computer"};
 
   if (r1 < 0 || r1 > 8)
@@ -1888,7 +1888,7 @@ showfile(char *filename)
   if (openfile(filename, "r") != 0)
     return;
 
-  while (getline(lBuffer) != 0)
+  while (get_line(lBuffer) != 0)
     {
       printf(lBuffer);
       
@@ -1926,7 +1926,7 @@ closefile(void)
 }
 
 int
-getline(char *s)
+get_line(char *s)
 {
   fflush(stdout);
   if (fgets(s, MAXCOL, stream) == NULL)
diff --git a/lang/cem/libcc.ansi/build.lua b/lang/cem/libcc.ansi/build.lua
index 3ca95b629..601a50de4 100644
--- a/lang/cem/libcc.ansi/build.lua
+++ b/lang/cem/libcc.ansi/build.lua
@@ -28,9 +28,9 @@ normalrule {
 }
 
 for _, plat in ipairs(vars.plats) do
-    acklibrary {
-        name = "lib_"..plat,
-        srcs = {
+	acklibrary {
+		name = "lib_"..plat,
+		srcs = {
 			"+ctype_files",
 			"+ctype_tab",
 			"./ctype/*.c",
@@ -43,20 +43,24 @@ for _, plat in ipairs(vars.plats) do
 			"./setjmp/*.c",
 			"./setjmp/*.e",
 			"./signal/*.c",
-            "./assert/*.c",
+			"./assert/*.c",
 			"./stdio/*.c",
 			"./stdlib/*.c",
 			"./string/*.c",
 			"./time/*.c",
-			
-        },
+		},
 		hdrs = {}, -- must be empty
 		deps = {
 			"lang/cem/libcc.ansi/headers+headers",
 			"plat/"..plat.."/include+headers",
+			"./malloc/malloc.h",
+			"./math/localmath.h",
+			"./stdio/loc_incl.h",
+			"./stdlib/ext_fmt.h",
+			"./time/loc_time.h",
 		},
-        vars = { plat = plat }
-    }
+		vars = { plat = plat }
+	}
 
 	ackfile {
 		name = "crt_"..plat,
diff --git a/lang/cem/libcc.ansi/headers/float.h b/lang/cem/libcc.ansi/headers/float.h
index 43656651b..8cdb34c4f 100644
--- a/lang/cem/libcc.ansi/headers/float.h
+++ b/lang/cem/libcc.ansi/headers/float.h
@@ -1,43 +1,79 @@
 /*
-    <float.h> -- simple version used by "gimplify"
+ * float.h - implementation limits
+ */
+/* $Id$ */
 
-    last edit:  2007-02-12  D A Gwyn
-*/
+#if	!defined(_FLOAT_H)
+#define	_FLOAT_H
 
-/* Does not exactly fit any model, and is minimal for "universality". */
+#if	defined(__vax) || defined(__pdp)
+#define	FLT_DIG			6
+#define	FLT_EPSILON		5.96046448e-08F
+#define	FLT_MANT_DIG		8
+#define	FLT_MAX			1.70141173e+38F
+#define	FLT_MAX_10_EXP		38
+#define	FLT_MAX_EXP		127
+#define	FLT_MIN			2.93873588e-39F
+#define	FLT_MIN_10_EXP		(-38)
+#define	FLT_MIN_EXP		(-127)
 
-#define FLT_ROUNDS  (-1)
-#define FLT_EVAL_METHOD (-1)
-#define FLT_RADIX   2
-#define DECIMAL_DIG 10
+#define	DBL_DIG			16
+#define	DBL_EPSILON		1.38777878078144568e-17
+#define	DBL_MANT_DIG		8
+#define	DBL_MAX			1.70141183460469229e+38
+#define	DBL_MAX_10_EXP		38
+#define	DBL_MAX_EXP		127
+#define	DBL_MIN			2.93873587705571877e-39
+#define	DBL_MIN_10_EXP		(-38)
+#define	DBL_MIN_EXP		(-127)
 
-/* assumes that "gimplify" specifies "-Dfloat=double" */
-#define FLT_MANT_DIG    10
-#define FLT_EPSILON (1E-9F)
-#define FLT_DIG     10
-#define FLT_MIN_EXP (-31)
-#define FLT_MIN     (1E-37F)
-#define FLT_MIN_10_EXP  (-37)
-#define FLT_MAX_EXP 37
-#define FLT_MAX     (1E+37F)
-#define FLT_MAX_10_EXP  37
+#define	LDBL_DIG		16
+#define	LDBL_EPSILON		1.38777878078144568e-17L
+#define	LDBL_MANT_DIG		8
+#define	LDBL_MAX		1.70141183460469229e+38L
+#define	LDBL_MAX_10_EXP		38
+#define	LDBL_MAX_EXP		127
+#define	LDBL_MIN		2.93873587705571877e-39L
+#define	LDBL_MIN_10_EXP		(-38)
+#define	LDBL_MIN_EXP		(-127)
 
-#define DBL_MANT_DIG    10
-#define DBL_EPSILON (1E-9)
-#define DBL_DIG     10
-#define DBL_MIN_EXP (-31)
-#define DBL_MIN     (1E-37)
-#define DBL_MIN_10_EXP  (-37)
-#define DBL_MAX_EXP 37
-#define DBL_MAX     (1E+37)
-#define DBL_MAX_10_EXP  37
+#define	FLT_ROUNDS		1
+#define	FLT_RADIX		2
 
-#define LDBL_MANT_DIG   10
-#define LDBL_EPSILON    (1E-9L)
-#define LDBL_DIG    10
-#define LDBL_MIN_EXP    (-31)
-#define LDBL_MIN    (1E-37L)
-#define LDBL_MIN_10_EXP (-37)
-#define LDBL_MAX_EXP    37
-#define LDBL_MAX    (1E+37L)
-#define LDBL_MAX_10_EXP 37
+#else		/* IEEE format */
+#define	FLT_DIG			6
+#define	FLT_EPSILON		1.19209290e-07F
+#define	FLT_MANT_DIG		24
+#define	FLT_MAX			3.40282347e+38F
+#define	FLT_MAX_10_EXP		38
+#define	FLT_MAX_EXP		128
+#define	FLT_MIN			1.17549435e-38F
+#define	FLT_MIN_10_EXP		(-37)
+#define	FLT_MIN_EXP		(-125)
+
+#define	DBL_DIG			15
+#define	DBL_EPSILON		2.2204460492503131e-16
+#define	DBL_MANT_DIG		53
+#define	DBL_MAX			1.7976931348623157e+308
+#define	DBL_MAX_10_EXP		308
+#define	DBL_MAX_EXP		1024
+#define	DBL_MIN			2.2250738585072014e-308
+#define	DBL_MIN_10_EXP		(-307)
+#define	DBL_MIN_EXP		(-1021)
+
+#define	LDBL_DIG		15
+#define	LDBL_EPSILON		2.2204460492503131e-16L
+#define	LDBL_MANT_DIG		53
+#define	LDBL_MAX		1.7976931348623157e+308L
+#define	LDBL_MAX_10_EXP		308
+#define	LDBL_MAX_EXP		1024
+#define	LDBL_MIN		2.2250738585072014e-308L
+#define	LDBL_MIN_10_EXP		(-307)
+#define	LDBL_MIN_EXP		(-1021)
+
+#define	FLT_ROUNDS		1
+#define	FLT_RADIX		2
+
+#endif	/* vax, pdp or ieee */
+
+#endif	/* _FLOAT_H */
diff --git a/lang/cem/libcc.ansi/math/localmath.h b/lang/cem/libcc.ansi/math/localmath.h
index 7c9a67465..e85c81c0a 100644
--- a/lang/cem/libcc.ansi/math/localmath.h
+++ b/lang/cem/libcc.ansi/math/localmath.h
@@ -18,18 +18,5 @@
 #define	POLYNOM12(x, a)	(POLYNOM11((x),(a)+1)*(x)+(a)[0])
 #define	POLYNOM13(x, a)	(POLYNOM12((x),(a)+1)*(x)+(a)[0])
 
-/* These are set up for 64-bit doubles. */
-
-#ifndef M_MAX_D
-#define M_MAX_D          1.7976931348623157e+308
-#define M_MIN_D		 2.2250738585072014e-308
-#define M_DEXPLEN	 11
-#endif
-#define M_DMAXEXP	 ((1 << (M_DEXPLEN - 1)) - 1)
-#define M_DMINEXP	 (-M_DMAXEXP)
-#define M_LN_MAX_D	 (M_LN2 * M_DMAXEXP)
-#define M_LN_MIN_D	 (M_LN2 * (M_DMINEXP - 1))
-
-#define HUGE		M_MAX_D
-#define MAXDOUBLE	M_MAX_D
-
+#define	M_LN_MAX_D	(M_LN2 * DBL_MAX_EXP)
+#define	M_LN_MIN_D	(M_LN2 * (DBL_MIN_EXP - 1))
diff --git a/modules/src/flt_arith/b64_add.c b/modules/src/flt_arith/b64_add.c
index ca03e84a0..71bd66607 100644
--- a/modules/src/flt_arith/b64_add.c
+++ b/modules/src/flt_arith/b64_add.c
@@ -5,6 +5,7 @@
 
 /* $Id$ */
 
+#include <stdint.h>
 #include "flt_misc.h"
 
 int
@@ -15,16 +16,15 @@ flt_b64_add(e1,e2)
 	int	carry;
 
 	/* add higher pair of 32 bits */
-	overflow = ucmp((long)0xFFFFFFFF - e1->flt_h_32, e2->flt_h_32) < 0;
+	overflow = (0xFFFFFFFFUL - e1->flt_h_32 < e2->flt_h_32);
 	e1->flt_h_32 += e2->flt_h_32;
 
 	/* add lower pair of 32 bits */
-	carry = ucmp((long)0xFFFFFFFF - e1->flt_l_32, e2->flt_l_32) < 0;
+	carry = (0xFFFFFFFFUL - e1->flt_l_32 < e2->flt_l_32);
 	e1->flt_l_32 += e2->flt_l_32;
 
-	if ((carry) && ((++e1->flt_h_32 &~0xFFFFFFFF) || e1->flt_h_32 == 0)) {
-		e1->flt_h_32 = 0;
+	if ((carry) && (++e1->flt_h_32 == 0))
 		return(1);		/* had a 64 bit overflow */
-	}
+
 	return(overflow);	/* return status from higher add */
 }
diff --git a/modules/src/flt_arith/b64_sft.c b/modules/src/flt_arith/b64_sft.c
index f891c6936..ef6d74a9e 100644
--- a/modules/src/flt_arith/b64_sft.c
+++ b/modules/src/flt_arith/b64_sft.c
@@ -23,12 +23,10 @@ flt_b64_sft(e,n)
 		n -= 32;
 	}
 	if (n > 0) {
-		e->flt_l_32 = (e->flt_l_32 >> 1) & 0x7FFFFFFF;
-		e->flt_l_32 >>= (n - 1);
+		e->flt_l_32 >>= n;
 		if (e->flt_h_32 != 0) {
-			e->flt_l_32 |= (e->flt_h_32 << (32 - n)) & 0xFFFFFFFF;
-			e->flt_h_32 = (e->flt_h_32 >> 1) & 0x7FFFFFFF;
-			e->flt_h_32 >>= (n - 1);
+			e->flt_l_32 |= (e->flt_h_32 << (32 - n));
+			e->flt_h_32 >>= n;
 		}
 	}
 	n = -n;
@@ -38,11 +36,10 @@ flt_b64_sft(e,n)
 		n -= 32;
 	}
 	if (n > 0) {
-		e->flt_h_32 = (e->flt_h_32 << n) & 0xFFFFFFFF;
+		e->flt_h_32 <<= n;
 		if (e->flt_l_32 != 0) {
-			long l = (e->flt_l_32 >> 1) & 0x7FFFFFFF;
-			e->flt_h_32 |= (l >> (31 - n));
-			e->flt_l_32 = (e->flt_l_32 << n) & 0xFFFFFFFF;
+			e->flt_h_32 |= (e->flt_l_32 >> (32 - n));
+			e->flt_l_32 <<= n;
 		}
 	}
 }
diff --git a/modules/src/flt_arith/build.lua b/modules/src/flt_arith/build.lua
index e6ac2dd40..54aa3b097 100644
--- a/modules/src/flt_arith/build.lua
+++ b/modules/src/flt_arith/build.lua
@@ -15,7 +15,6 @@ clibrary {
 		"./flt_umin.c",
 		"./flt_chk.c",
 		"./split.c",
-		"./ucmp.c",
 	},
 	hdrs = { "./flt_arith.h" },
 	deps = {
@@ -24,4 +23,18 @@ clibrary {
 	}
 }
 
+-- The test program isn't built by default.  Here is a target
+-- modules/src/flt_arith+pkg to install it as flt_test
 
+cprogram {
+	name = "test",
+	srcs = { "./test.c" },
+	deps = { "+lib" },
+}
+
+installable {
+	name = "pkg",
+	map = {
+		["$(INSDIR)/bin/flt_test"] = "+test",
+	},
+}
diff --git a/modules/src/flt_arith/flt_add.c b/modules/src/flt_arith/flt_add.c
index d9d4d57c5..ca9830ec3 100644
--- a/modules/src/flt_arith/flt_add.c
+++ b/modules/src/flt_arith/flt_add.c
@@ -44,11 +44,10 @@ flt_add(e1,e2,e3)
 	}
 	if (e1->flt_sign != e2->flt_sign) {
 		/* e2 + e1 = e2 - (-e1) */
-		int tmp = ucmp(e1->m1, e2->m1);
-		int tmp2 = ucmp(e1->m2, e2->m2);
-		if (tmp > 0 || (tmp == 0 && tmp2 > 0)) {
+		if (e1->m1 > e2->m1 ||
+		    (e1->m1 == e2->m1 && e1->m2 > e2->m2)) {
                 	/*      abs(e1) > abs(e2) */
-                	if (tmp2 < 0) {
+			if (e1->m2 < e2->m2) {
                         	e1->m1 -= 1;    /* carry in */
                 	}
                 	e1->m1 -= e2->m1;
@@ -56,7 +55,7 @@ flt_add(e1,e2,e3)
                 	*e3 = *e1;
         	}
         	else {
-                	if (tmp2 > 0)
+			if (e1->m2 > e2->m2)
                         	e2->m1 -= 1;    /* carry in */
                 	e2->m1 -= e1->m1;
                 	e2->m2 -= e1->m2;
diff --git a/modules/src/flt_arith/flt_ar2flt.c b/modules/src/flt_arith/flt_ar2flt.c
index f1d159a67..6dac35883 100644
--- a/modules/src/flt_arith/flt_ar2flt.c
+++ b/modules/src/flt_arith/flt_ar2flt.c
@@ -25,10 +25,9 @@ flt_arith2flt(n, e, uns)
 		e->m1 = 0; e->m2 = n;
 	}
 	else {
-		e->m2 = n & 0xffffffffL;
-		n >>= 1;
-		n &= ~((arith) 1 << (8*sizeof(arith)-1));
-		e->m1 = (n >> 31);
+		/* assuming sizeof(arith) >= 8 */
+		e->m1 = n >> 32;
+		e->m2 = n;
 	}
 	if (n == 0) {
 		e->flt_exp = 0;
diff --git a/modules/src/flt_arith/flt_arith.3 b/modules/src/flt_arith/flt_arith.3
index 2e6a5feb1..91bce44ea 100644
--- a/modules/src/flt_arith/flt_arith.3
+++ b/modules/src/flt_arith/flt_arith.3
@@ -9,8 +9,8 @@ flt_arith \- high precision floating point arithmetic
 .if t .ta 3m 13m 22m
 .if n .ta 5m 25m 40m
 struct flt_mantissa {
-	long	flt_h_32;	/* high order 32 bits of mantissa */
-	long	flt_l_32;	/* low order 32 bits of mantissa */
+	uint32_t flt_h_32;	/* high order 32 bits of mantissa */
+	uint32_t flt_l_32;	/* low order 32 bits of mantissa */
 };
 
 typedef struct {
diff --git a/modules/src/flt_arith/flt_arith.h b/modules/src/flt_arith/flt_arith.h
index bd6ecb157..9a21e5135 100644
--- a/modules/src/flt_arith/flt_arith.h
+++ b/modules/src/flt_arith/flt_arith.h
@@ -7,15 +7,15 @@
 #ifndef __FLT_INCLUDED__
 #define __FLT_INCLUDED__
 
-#include "ansi.h"
+#include <stdint.h>
 
 #ifndef arith
 #define arith long
 #endif
 
 struct flt_mantissa {
-	long	flt_h_32;	/* high order 32 bits of mantissa */
-	long	flt_l_32;	/* low order 32 bits of mantissa */
+	uint32_t flt_h_32;	/* high order 32 bits of mantissa */
+	uint32_t flt_l_32;	/* low order 32 bits of mantissa */
 };
 
 typedef struct flt_arith {
@@ -33,17 +33,17 @@ extern int	flt_status;
 
 #define FLT_STRLEN	32	/* max length of result of flt_flt2str() */
 
-_PROTOTYPE(void flt_add, (flt_arith *, flt_arith *, flt_arith *));
-_PROTOTYPE(void flt_sub, (flt_arith *, flt_arith *, flt_arith *));
-_PROTOTYPE(void flt_mul, (flt_arith *, flt_arith *, flt_arith *));
-_PROTOTYPE(void flt_div, (flt_arith *, flt_arith *, flt_arith *));
-_PROTOTYPE(void flt_modf, (flt_arith *, flt_arith *, flt_arith *));
-_PROTOTYPE(int flt_cmp, (flt_arith *, flt_arith *));
-_PROTOTYPE(void flt_str2flt, (char *, flt_arith *));
-_PROTOTYPE(void flt_flt2str, (flt_arith *, char *, int));
-_PROTOTYPE(void flt_arith2flt, (arith, flt_arith *, int));
-_PROTOTYPE(arith flt_flt2arith, (flt_arith *, int));
-_PROTOTYPE(void flt_b64_sft, (struct flt_mantissa *, int));
-_PROTOTYPE(void flt_umin, (flt_arith *));
+void flt_add(flt_arith *, flt_arith *, flt_arith *);
+void flt_sub(flt_arith *, flt_arith *, flt_arith *);
+void flt_mul(flt_arith *, flt_arith *, flt_arith *);
+void flt_div(flt_arith *, flt_arith *, flt_arith *);
+void flt_modf(flt_arith *, flt_arith *, flt_arith *);
+int flt_cmp(flt_arith *, flt_arith *);
+void flt_str2flt(char *, flt_arith *);
+void flt_flt2str(flt_arith *, char *, int);
+void flt_arith2flt(arith, flt_arith *, int);
+arith flt_flt2arith(flt_arith *, int);
+void flt_b64_sft(struct flt_mantissa *, int);
+void flt_umin(flt_arith *);
 
 #endif /* __FLT_INCLUDED__ */
diff --git a/modules/src/flt_arith/flt_div.c b/modules/src/flt_arith/flt_div.c
index 11b74c0e1..3295fe63b 100644
--- a/modules/src/flt_arith/flt_div.c
+++ b/modules/src/flt_arith/flt_div.c
@@ -5,14 +5,15 @@
 
 /* $Id$ */
 
+#include <stdint.h>
 #include "flt_misc.h"
 
 void
 flt_div(e1,e2,e3)
 	register flt_arith *e1,*e2,*e3;
 {
-	long	result[2];
-	register long	*lp;
+	uint32_t result[2];
+	register uint32_t *rp;
 	unsigned short u[9], v[5];
 	register int j;
 	register unsigned short *u_p = u;
@@ -44,7 +45,7 @@ flt_div(e1,e2,e3)
 	while (! v[maxv]) maxv--;
 	result[0] = 0;
 	result[1] = 0;
-	lp = result;
+	rp = result;
 
 	/*
 	 * Use an algorithm of Knuth (The art of programming, Seminumerical
@@ -52,35 +53,25 @@ flt_div(e1,e2,e3)
 	 * with base 65536. 
 	 */
 	for (j = 0; j <= 3; j++, u_p++) {
-		long q_est, temp;
-		long v1 = v[1];
+		uint32_t q_est, temp;
 
-		if (j == 2) lp++;
+		if (j == 2) rp++;
 		if (u_p[0] == 0 && u_p[1] < v[1]) continue;
-		temp = ((long)u_p[0] << 16) + u_p[1];
+		temp = ((uint32_t)u_p[0] << 16) + u_p[1];
 		if (u_p[0] >= v[1]) {
-			q_est = 0x0000FFFFL;
+			q_est = 0x0000FFFFUL;
 		}
 		else if (v[1] == 1) {
 			q_est = temp;
 		}
-		else if (temp >= 0) {
-			q_est = temp / v1;
-		}
 		else {
-			long rem;
-			q_est = (0x7FFFFFFF/v1)+((temp&0x7FFFFFFF)/v1);
-			rem = (0x7FFFFFFF%v1)+((temp&0x7FFFFFFF)%v1)+1;
-			while (rem >= v1) {
-				q_est++;
-				rem -= v1;
-			}
+			q_est = temp / v[1];
 		}
-		temp -= q_est * v1;
+		temp -= q_est * v[1];
 		while (!(temp&0xFFFF0000) &&
-		       ucmp((long)v[2]*q_est,(temp<<16)+(long)u_p[2]) > 0) {
+		       v[2]*q_est > (temp<<16)+u_p[2]) {
 			q_est--;
-			temp += v1;
+			temp += v[1];
 		}
 		/*	Now, according to Knuth, we have an estimate of the
 			quotient, that is either correct or one too big, but
@@ -88,11 +79,11 @@ flt_div(e1,e2,e3)
 		*/
 		if (q_est != 0)  {
 			int i;
-			long k = 0;
+			uint32_t k = 0;
 			int borrow = 0;
 
 			for (i = maxv; i > 0; i--) {
-				long tmp = q_est * (long)v[i] + k + borrow;
+				uint32_t tmp = q_est * v[i] + k + borrow;
 				unsigned short md = tmp & 0xFFFF;
 
 				borrow = (md > u_p[i]);
@@ -100,7 +91,7 @@ flt_div(e1,e2,e3)
 				k = (tmp >> 16) & 0xFFFF;
 			}
 			k += borrow;
-			borrow = (long)u_p[0] < k;
+			borrow = u_p[0] < k;
 			u_p[0] -= k;
 
 			if (borrow) {
@@ -110,15 +101,15 @@ flt_div(e1,e2,e3)
 				q_est--;
 				borrow = 0;
 				for (i = maxv; i > 0; i--) {
-					long tmp 
-					    = v[i]+(long)u_p[i]+borrow;
-					
+					uint32_t tmp
+					    = v[i]+(uint32_t)u_p[i]+borrow;
+
 					u_p[i] = tmp & 0xFFFF;
 					borrow = (tmp >> 16) & 0xFFFF;
 				}
 				u_p[0] += borrow;
 			}
-			*lp |= (j & 1) ? q_est : (q_est<<16);
+			*rp |= (j & 1) ? q_est : (q_est<<16);
 		}
 	}
 	e3->m1 = result[0];
diff --git a/modules/src/flt_arith/flt_misc.h b/modules/src/flt_arith/flt_misc.h
index ec850697f..64b6865aa 100644
--- a/modules/src/flt_arith/flt_misc.h
+++ b/modules/src/flt_arith/flt_misc.h
@@ -15,14 +15,12 @@
 #define EXT_MIN		(-16384)	/* min exponent */
 
 /* hiding of names: */
-#define ucmp		_flt_ucmp
 #define flt_nrm		_flt_nrm
 #define flt_chk		_flt_chk
 #define flt_b64_add	_flt_64add
 #define flt_split	_flt_split
 
-_PROTOTYPE(int ucmp, (long, long));
-_PROTOTYPE(void flt_nrm, (flt_arith *));
-_PROTOTYPE(void flt_chk, (flt_arith *));
-_PROTOTYPE(int flt_b64_add, (struct flt_mantissa *, struct flt_mantissa *));
-_PROTOTYPE(void flt_split, (flt_arith *, unsigned short *));
+void flt_nrm(flt_arith *);
+void flt_chk(flt_arith *);
+int flt_b64_add(struct flt_mantissa *, struct flt_mantissa *);
+void flt_split(flt_arith *, unsigned short *);
diff --git a/modules/src/flt_arith/flt_mul.c b/modules/src/flt_arith/flt_mul.c
index e6972ab54..4d989382b 100644
--- a/modules/src/flt_arith/flt_mul.c
+++ b/modules/src/flt_arith/flt_mul.c
@@ -5,6 +5,7 @@
 
 /* $Id$ */
 
+#include <stdint.h>
 #include "flt_misc.h"
 
 void
@@ -43,9 +44,9 @@ flt_mul(e1,e2,e3)
 	 */
 	for(i=4, pres = &result[4];i--;pres--) if (mp[i]) {
 		unsigned short k = 0;
-		long mpi = mp[i];
+		uint32_t mpi = mp[i];
 		for(j=4;j--;) {
-			long tmp = (long)pres[j] + k;
+			long tmp = (uint32_t)pres[j] + k;
 			if (mc[j]) tmp += mpi * mc[j];
 			pres[j] = tmp & 0xFFFF;
 			k = (tmp >> 16) & 0xFFFF;
@@ -64,12 +65,12 @@ flt_mul(e1,e2,e3)
 	/*
 	 *	combine the registers to a total
 	 */
-	e3->m1 = ((long)result[0] << 16) + result[1];
-	e3->m2 = ((long)result[2] << 16) + result[3];
+	e3->m1 = ((uint32_t)result[0] << 16) + result[1];
+	e3->m2 = ((uint32_t)result[2] << 16) + result[3];
 	if (result[4] & 0x8000) {
-		if (++e3->m2 == 0 || (e3->m2 & ~ 0xFFFFFFFF)) {
+		if (++e3->m2 == 0) {
 			e3->m2 = 0;
-			if (++e3->m1 == 0 || (e3->m1 & ~ 0xFFFFFFFF)) {
+			if (++e3->m1 == 0) {
 				e3->m1 = 0x80000000;
 				e3->flt_exp++;
 			}
diff --git a/modules/src/flt_arith/flt_nrm.c b/modules/src/flt_arith/flt_nrm.c
index 14762b616..3520ee5b4 100644
--- a/modules/src/flt_arith/flt_nrm.c
+++ b/modules/src/flt_arith/flt_nrm.c
@@ -5,6 +5,7 @@
 
 /* $Id$ */
 
+#include <stdint.h>
 #include "flt_misc.h"
 
 void
@@ -24,8 +25,8 @@ flt_nrm(e)
 		e->m2 = 0L;
 		e->flt_exp -= 32;
 	}
-	if ((e->m1 & 0x80000000) == 0) {
-		long l = 0x40000000;
+	if ((e->m1 & 0x80000000UL) == 0) {
+		uint32_t l = 0x40000000UL;
 		int cnt = -1;
 
 		while (! (l & e->m1)) {
diff --git a/modules/src/flt_arith/test.c b/modules/src/flt_arith/test.c
index bf9c43c69..dfc4a694a 100644
--- a/modules/src/flt_arith/test.c
+++ b/modules/src/flt_arith/test.c
@@ -1,3 +1,5 @@
+#include <stdio.h>
+#include <string.h>
 #include "flt_arith.h"
 
 struct tests {
@@ -22,6 +24,7 @@ struct tests {
 	{ 0, 0, 0, 0}
 };
 
+int
 main()
 {
 	register struct tests *p = tests;
@@ -31,7 +34,7 @@ main()
 		if (! dotest(p)) exit_status = 1;
 		p++;
 	}
-	exit(exit_status);
+	return exit_status;
 }
 
 int
diff --git a/modules/src/flt_arith/ucmp.c b/modules/src/flt_arith/ucmp.c
deleted file mode 100644
index c4b7bc0a4..000000000
--- a/modules/src/flt_arith/ucmp.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
-  (c) copyright 1989 by the Vrije Universiteit, Amsterdam, The Netherlands.
-  See the copyright notice in the ACK home directory, in the file "Copyright".
-*/
-
-/* $Id$ */
-
-#include "flt_misc.h"
-
-int
-ucmp(l1,l2)
-	long l1,l2;
-{
-	if (l1 == l2) return 0;
-	if (l2 >= 0) {
-		if (l1 > l2 || l1 < 0) return 1;
-		return -1;
-	}
-	if (l1 >= 0 || l1 < l2) return -1;
-	return 1;
-}