diff --git a/src/calendar.c b/src/calendar.c
index 5e9483d2..c28341bb 100644
--- a/src/calendar.c
+++ b/src/calendar.c
@@ -279,6 +279,7 @@ static int DidAMonth;
 static int DidAWeek;
 static int DidADay;
 
+static char const *CalendarTime(int tim, int duration);
 static void ColorizeEntry(CalEntry const *e, int clamp);
 static void SortCol (CalEntry **col);
 static void DoCalendarOneWeek (int nleft);
@@ -380,7 +381,7 @@ despace(char const *s)
     return buf;
 }
 
-void PrintJSONChar(char c) {
+static void PrintJSONChar(char c) {
     switch(c) {
     case '\b': printf("\\b"); break;
     case '\f': printf("\\f"); break;
@@ -422,7 +423,7 @@ void PrintJSONString(char const *s)
     }
 }
 
-void PrintJSONStringLC(char const *s)
+static void PrintJSONStringLC(char const *s)
 {
     while (*s) {
         switch(*s) {
@@ -466,7 +467,7 @@ void PrintJSONKeyPairString(char const *name, char const *val)
     printf("\",");
 }
 
-void PrintJSONKeyPairDate(char const *name, int dse)
+static void PrintJSONKeyPairDate(char const *name, int dse)
 {
     int y, m, d;
     if (dse == NO_DATE) {
@@ -480,7 +481,7 @@ void PrintJSONKeyPairDate(char const *name, int dse)
 
 }
 
-void PrintJSONKeyPairDateTime(char const *name, int dt)
+static void PrintJSONKeyPairDateTime(char const *name, int dt)
 {
     int y, m, d, h, i, k;
     if (dt == NO_TIME) {
@@ -498,7 +499,7 @@ void PrintJSONKeyPairDateTime(char const *name, int dt)
 
 }
 
-void PrintJSONKeyPairTime(char const *name, int t)
+static void PrintJSONKeyPairTime(char const *name, int t)
 {
     int h, i;
     if (t == NO_TIME) {
@@ -2782,7 +2783,7 @@ static void WriteCalDays(void)
 /*  This takes into account duration                           */
 /*                                                             */
 /***************************************************************/
-char const *
+static char const *
 CalendarTime(int tim, int duration)
 {
     static char buf[128];
diff --git a/src/expr.c b/src/expr.c
index 23157b90..74fe2a63 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -191,6 +191,7 @@ static int ExprNodesUsed = 0;
 /* Forward references */
 static expr_node * parse_expression_aux(char const **e, int *r, Var *locals, int level);
 static char const *get_operator_name(expr_node *node);
+static void print_expr_tree(expr_node *node, FILE *fp);
 
 /* This is super-skanky... we keep track of the currently-executing
    user-defined function in a global var */
@@ -2712,7 +2713,7 @@ static void print_kids(expr_node *node, FILE *fp)
 /* file.  Used for debugging (the "-ds" flag.)                 */
 /*                                                             */
 /***************************************************************/
-void print_expr_tree(expr_node *node, FILE *fp)
+static void print_expr_tree(expr_node *node, FILE *fp)
 {
     if (!node) {
         return;
@@ -2961,7 +2962,7 @@ int CopyValue(Value *dest, const Value *src)
 /*  4:00PM                                                     */
 /*                                                             */
 /***************************************************************/
-int ParseLiteralTime(char const **s, int *tim)
+static int ParseLiteralTime(char const **s, int *tim)
 {
     int h=0;
     int m=0;
diff --git a/src/files.c b/src/files.c
index 91a7b6d4..f0e504af 100644
--- a/src/files.c
+++ b/src/files.c
@@ -179,7 +179,7 @@ got_a_fresh_line(void)
     WarnedAboutImplicit = 0;
 }
 
-void set_cloexec(FILE *fp)
+static void set_cloexec(FILE *fp)
 {
     int flags;
     int fd;
@@ -381,7 +381,7 @@ static int ReadLineFromFile(int use_pclose)
 /*  ShouldCache is 1, cache the file                           */
 /*                                                             */
 /***************************************************************/
-int OpenFile(char const *fname)
+static int OpenFile(char const *fname)
 {
     CachedFile *h = CachedFiles;
     int r;
diff --git a/src/hashtab.c b/src/hashtab.c
index 3a96b3fb..e2dc9796 100644
--- a/src/hashtab.c
+++ b/src/hashtab.c
@@ -321,7 +321,7 @@ hash_table_find(hash_table *t, void *candidate)
  *
  * \return 0 on success, -1 on failure
  */
-int
+static int
 hash_table_delete_helper(hash_table *t, void *item, int resize_ok)
 {
     if (!item) {
diff --git a/src/hashtab.h b/src/hashtab.h
index 61a661e2..927eafc4 100644
--- a/src/hashtab.h
+++ b/src/hashtab.h
@@ -68,7 +68,6 @@ int hash_table_delete(hash_table *t, void *item);
 int hash_table_delete_no_resize(hash_table *t, void *item);
 void *hash_table_next(hash_table *t, void *cur);
 void hash_table_dump_stats(hash_table *t, FILE *fp);
-void hash_table_get_stats(hash_table *t, struct hash_table_stats *stat);
 
 /**
  * \brief Iterate over all items in a hash table
diff --git a/src/hashtab_stats.c b/src/hashtab_stats.c
index 54e1dc91..aef143ab 100644
--- a/src/hashtab_stats.c
+++ b/src/hashtab_stats.c
@@ -22,6 +22,8 @@
 #include <stdio.h>
 #include <math.h>
 
+static void hash_table_get_stats(hash_table *t, struct hash_table_stats *stat);
+
 /**
  * \brief Dump hash table statistics to a stdio FILE
  *
@@ -53,7 +55,7 @@ hash_table_dump_stats(hash_table *t, FILE *fp)
  * \param t A pointer to a hash_table object
  * \param stat A pointer to a hash_table_stats object that will be filled in
  */
-void
+static void
 hash_table_get_stats(hash_table *t, struct hash_table_stats *stat)
 {
     size_t n = hash_table_num_buckets(t);
diff --git a/src/hbcal.c b/src/hbcal.c
index 8c2f7b76..6d1c0ebb 100644
--- a/src/hbcal.c
+++ b/src/hbcal.c
@@ -70,6 +70,8 @@ static char MaxMonLen[] = {
 
 static char HebIsLeap[] = {0,0,1,0,0,1,0,1,0,0,1,0,0,1,0,0,1,0,1};
 
+static long DaysToHebYear(int y);
+
 /***************************************************************/
 /*                                                             */
 /*  RoshHashana                                                */
@@ -78,7 +80,7 @@ static char HebIsLeap[] = {0,0,1,0,0,1,0,1,0,0,1,0,0,1,0,0,1,0,1};
 /*  Hebrew year.  (ie, 5751, not 1990)                         */
 /*                                                             */
 /***************************************************************/
-int RoshHashana(int i)
+static int RoshHashana(int i)
 {
     long j;
     j = DaysToHebYear(i-3744) - CORRECTION;
@@ -93,7 +95,7 @@ int RoshHashana(int i)
 /*  from new moon before Tishrey 1 5701.                       */
 /*                                                             */
 /***************************************************************/
-long DaysToHebYear(int y)
+static long DaysToHebYear(int y)
 {
     long m, nm, dw, s, l;
 
@@ -126,7 +128,7 @@ long DaysToHebYear(int y)
 /*                                                             */
 /*                                                             */
 /***************************************************************/
-int DaysInHebYear(int y)
+static int DaysInHebYear(int y)
 {
     long thisyear, nextyear;
 
@@ -143,7 +145,7 @@ int DaysInHebYear(int y)
 /*  given the LENGTH of the Hebrew year.                       */
 /*                                                             */
 /***************************************************************/
-char const *DaysInHebMonths(int ylen)
+static char const *DaysInHebMonths(int ylen)
 {
     static char monlen[14] =
         {30, 29, 30, 29, 30, 0, 29, 30, 29, 30, 29, 30, 29, 29};
diff --git a/src/json.c b/src/json.c
index 7953fbeb..8fed35b1 100644
--- a/src/json.c
+++ b/src/json.c
@@ -58,6 +58,8 @@ typedef unsigned int json_uchar;
 
 const struct _json_value json_value_none;
 
+static void json_value_free_ex (json_settings * settings, json_value * value);
+
 static unsigned char hex_value (json_char c)
 {
    if (isdigit((unsigned char)c))
@@ -241,10 +243,10 @@ static const long
    flag_block_comment    = 1 << 14,
    flag_num_got_decimal  = 1 << 15;
 
-json_value * json_parse_ex (json_settings const * settings,
-                            const json_char * json,
-                            size_t length,
-                            char * error_buf)
+static json_value * json_parse_ex (json_settings const * settings,
+                                   const json_char * json,
+                                   size_t length,
+                                   char * error_buf)
 {
    char error [json_error_max];
    const json_char * end;
@@ -988,7 +990,7 @@ json_value * json_parse (const json_char * json, size_t length)
    return json_parse_ex (&settings, json, length, 0);
 }
 
-void json_value_free_ex (json_settings * settings, json_value * value)
+static void json_value_free_ex (json_settings * settings, json_value * value)
 {
    json_value * cur_value;
 
diff --git a/src/json.h b/src/json.h
index f4a2c37a..f1581635 100644
--- a/src/json.h
+++ b/src/json.h
@@ -266,21 +266,9 @@ json_value * json_parse (const json_char * json,
                          size_t length);
 
 #define json_error_max 128
-json_value * json_parse_ex (json_settings const * settings,
-                            const json_char * json,
-                            size_t length,
-                            char * error);
-
 void json_value_free (json_value *);
 
 
-/* Not usually necessary, unless you used a custom mem_alloc and now want to
- * use a custom mem_free.
- */
-void json_value_free_ex (json_settings * settings,
-                         json_value *);
-
-
 #ifdef __cplusplus
    } /* extern "C" */
 #endif
diff --git a/src/main.c b/src/main.c
index 0ef7c34b..4e88b2a3 100644
--- a/src/main.c
+++ b/src/main.c
@@ -50,11 +50,15 @@
 #include "err.h"
 
 static void DoReminders(void);
+static int DoDebug(ParsePtr p);
+static void ClearLastTriggers(void);
+static int DoBanner(ParsePtr p);
+static void SaveLastTimeTrig(TimeTrig const *t);
 
 /* Macro for simplifying common block so as not to litter code */
 #define OUTPUT(c) do { if (output) { DBufPutc(output, c); } else { putchar(c); } } while(0)
 
-void
+static void
 exitfunc(void)
 {
     /* Kill any execution-time-limiter process */
@@ -1281,7 +1285,7 @@ int VerifyEoln(ParsePtr p)
 /*  Set the debug options under program control.               */
 /*                                                             */
 /***************************************************************/
-int DoDebug(ParsePtr p)
+static int DoDebug(ParsePtr p)
 {
     int err;
     int ch;
@@ -1387,7 +1391,7 @@ int DoDebug(ParsePtr p)
 /*  reminder is issued.                                        */
 /*                                                             */
 /***************************************************************/
-int DoBanner(ParsePtr p)
+static int DoBanner(ParsePtr p)
 {
     int err;
     int c;
@@ -1966,7 +1970,7 @@ FreeTrig(Trigger *t)
     t->infos = NULL;
 }
 
-void
+static void
 ClearLastTriggers(void)
 {
     LastTrigger.expired = 0;
@@ -2026,7 +2030,7 @@ SaveLastTrigger(Trigger const *t)
     }
 }
 
-void
+static void
 SaveLastTimeTrig(TimeTrig const *t)
 {
     memcpy(&LastTimeTrig, t, sizeof(LastTimeTrig));
diff --git a/src/md5.c b/src/md5.c
index 0f11a57e..a2627ccf 100644
--- a/src/md5.c
+++ b/src/md5.c
@@ -20,6 +20,7 @@
 #include "md5.h"
 
 static void byteReverse(unsigned char *buf, unsigned longs);
+static void MD5Transform(uint32 buf[4], uint32 const in[16]);
 
 /*
  * Note: this code is harmless on little-endian machines.
@@ -163,7 +164,7 @@ void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
  * reflect the addition of 16 longwords of new data.  MD5Update blocks
  * the data and converts bytes into longwords for this routine.
  */
-void MD5Transform(uint32 buf[4], uint32 const in[16])
+static void MD5Transform(uint32 buf[4], uint32 const in[16])
 {
     register uint32 a, b, c, d;
 
diff --git a/src/md5.h b/src/md5.h
index 993a58d4..fa5150f0 100644
--- a/src/md5.h
+++ b/src/md5.h
@@ -29,6 +29,5 @@ void MD5Init(struct MD5Context *context);
 void MD5Update(struct MD5Context *context, unsigned char const *buf,
                unsigned len);
 void MD5Final(unsigned char digest[16], struct MD5Context *context);
-void MD5Transform(uint32 buf[4], uint32 const in[16]);
 
 #endif /* !MD5_H */
diff --git a/src/moon.c b/src/moon.c
index 95e2981c..1b5ec8fa 100644
--- a/src/moon.c
+++ b/src/moon.c
@@ -665,7 +665,7 @@ static double interpolate(double f0, double f1, double f2, double p)
 
 /* Moon position using fundamental arguments
    Van Flandern & Pulkkinen, 1979) */
-void moon_position(double dayOffset, double *ra, double *declination, double *distance)
+static void moon_position(double dayOffset, double *ra, double *declination, double *distance)
 {
     double l = 0.606434 + 0.03660110129 * dayOffset;
     double m = 0.374897 + 0.03629164709 * dayOffset;
diff --git a/src/protos.h b/src/protos.h
index d2aba9a9..7967c2d9 100644
--- a/src/protos.h
+++ b/src/protos.h
@@ -47,7 +47,6 @@ int DoFrename (ParsePtr p);
 void UnsetAllUserFuncs(void);
 void ProduceCalendar (void);
 char const *SimpleTime (int tim);
-char const *CalendarTime (int tim, int duration);
 int DoRem (ParsePtr p);
 int DoFlush (ParsePtr p);
 void DoExit (ParsePtr p);
@@ -57,14 +56,12 @@ int ShouldTriggerReminder (Trigger const *t, TimeTrig const *tim, int dse, int *
 int DoSubst (ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig const *tt, int dse, int mode);
 int DoSubstFromString (char const *source, DynamicBuffer *dbuf, int dse, int tim);
 int ParseLiteralDateOrTime (char const **s, int *dse, int *tim);
-int ParseLiteralTime (char const **s, int *tim);
 expr_node *parse_expression(char const **e, int *r, Var *locals);
 
 int evaluate_expression(expr_node *node, Value *locals, Value *ans, int *nonconst);
 int evaluate_expr_node(expr_node *node, Value *locals, Value *ans, int *nonconst);
 int truthy(Value const *v);
 
-void print_expr_tree(expr_node *node, FILE *fp);
 void unlimit_execution_time(void);
 expr_node *free_expr_tree(expr_node *node);
 int EvalExpr (char const **e, Value *v, ParsePtr p);
@@ -72,7 +69,6 @@ int DoCoerce (char type, Value *v);
 char const *PrintValue  (Value *v, FILE *fp);
 int CopyValue (Value *dest, const Value *src);
 int ReadLine (void);
-int OpenFile (char const *fname);
 int DoInclude (ParsePtr p, enum TokTypes tok);
 int DoIncludeCmd (ParsePtr p);
 int IncludeFile (char const *fname);
@@ -109,8 +105,6 @@ int DoEndif (ParsePtr p);
 int DoIfTrig (ParsePtr p);
 int ShouldIgnoreLine (void);
 int VerifyEoln (ParsePtr p);
-int DoDebug (ParsePtr p);
-int DoBanner (ParsePtr p);
 int DoRun (ParsePtr p);
 int DoExpr (ParsePtr p);
 int DoTranslate (ParsePtr p);
@@ -128,7 +122,6 @@ int QueueReminder (ParsePtr p, Trigger *trig, TimeTrig const *tim, char const *s
 void HandleQueuedReminders (void);
 char const *FindInitialToken (Token *tok, char const *s);
 void FindToken (char const *s, Token *tok);
-void FindNumericToken (char const *s, Token *t);
 int ComputeTrigger (int today, Trigger *trig, TimeTrig *tim, int *err, int save_in_globals);
 int ComputeTriggerNoAdjustDuration (int today, Trigger *trig, TimeTrig const *tim, int *err, int save_in_globals, int duration_days);
 int AdjustTriggerForDuration(int today, int r, Trigger *trig, TimeTrig *tim, int save_in_globals);
@@ -150,9 +143,7 @@ void strtolower(char *s);
 
 Var *FindVar (char const *str, int create);
 SysVar *FindSysVar (char const *name);
-int DeleteVar (char const *str);
 int SetVar (char const *str, Value const *val, int nonconst_expr);
-int GetVarValue (char const *str, Value *val);
 int DoSet  (Parser *p);
 int DoUnset  (Parser *p);
 int DoDump (ParsePtr p);
@@ -164,7 +155,6 @@ int DoPreserve  (Parser *p);
 int DoSatRemind (Trigger *trig, TimeTrig *tt, ParsePtr p);
 int DoMsgCommand (char const *cmd, char const *msg, int is_queued);
 int ParseNonSpaceChar (ParsePtr p, int *err, int peek);
-unsigned int HashVal_ignorecase(char const *str);
 unsigned int HashVal_preservecase(char const *str);
 int DateOK (int y, int m, int d);
 BuiltinFunc *FindBuiltinFunc (char const *name);
@@ -175,10 +165,6 @@ int UserFuncExists (char const *fn);
 void DSEToHeb (int dse, int *hy, int *hm, int *hd);
 int HebNameToNum (char const *mname);
 char const *HebMonthName (int m, int y);
-int RoshHashana (int i);
-long DaysToHebYear (int y);
-int DaysInHebYear (int y);
-char const *DaysInHebMonths (int ylen);
 int HebToDSE (int hy, int hm, int hd);
 int GetValidHebDate (int yin, int min, int din, int adarbehave, int *mout, int *dout, int yahr);
 int GetNextHebrewDate (int dsestart, int hm, int hd, int yahr, int adarbehave, int *ans);
@@ -199,9 +185,7 @@ void PurgeEchoLine(char const *fmt, ...);
 void FreeTrig(Trigger *t);
 void AppendTag(DynamicBuffer *buf, char const *s);
 char const *SynthesizeTag(void);
-void ClearLastTriggers(void);
 void SaveLastTrigger(Trigger const *t);
-void SaveLastTimeTrig(TimeTrig const *t);
 void SaveAllTriggerInfo(Trigger const *t, TimeTrig const *tt, int trigdate, int trigtime, int valid);
 
 void PerIterationInit(void);
@@ -210,13 +194,9 @@ char const *Colorize(int r, int g, int b, int bg, int clamp);
 void PrintJSONString(char const *s);
 void PrintJSONKeyPairInt(char const *name, int val);
 void PrintJSONKeyPairString(char const *name, char const *val);
-void PrintJSONKeyPairDate(char const *name, int dse);
-void PrintJSONKeyPairDateTime(char const *name, int dt);
-void PrintJSONKeyPairTime(char const *name, int t);
 void System(char const *cmd, int queued);
 int ShellEscape(char const *in, DynamicBuffer *out);
 int AddGlobalOmit(int dse);
-void set_lat_and_long_from_components(void);
 void set_components_from_lat_and_long(void);
 
 void DebugExitFunc(void);
@@ -226,7 +206,6 @@ int GetTerminalBackground(void);
 char const *get_day_name(int wkday);
 char const *get_month_name(int mon);
 
-void set_cloexec(FILE *fp);
 int push_call(char const *filename, char const *func, int lineno, int lineno_start);
 void clear_callstack(void);
 int print_callstack(FILE *fp);
@@ -279,12 +258,8 @@ void print_escaped_string(FILE *fp, char const *s);
 void print_escaped_string_helper(FILE *fp, char const *s, int esc_for_remind, int json);
 void GenerateSysvarTranslationTemplates(void);
 void TranslationTemplate(char const *msg);
-TrigInfo *NewTrigInfo(char const *i);
-void FreeTrigInfo(TrigInfo *ti);
 void FreeTrigInfoChain(TrigInfo *ti);
 int AppendTrigInfo(Trigger *t, char const *info);
-int TrigInfoHeadersAreTheSame(char const *i1, char const *i2);
-int TrigInfoIsValid(char const *info);
 char const *FindTrigInfo(Trigger *t, char const *header);
 void WriteJSONInfoChain(TrigInfo *ti);
 char const *line_range(int lineno_start, int lineno);
diff --git a/src/queue.c b/src/queue.c
index efc9e434..78bf83ec 100644
--- a/src/queue.c
+++ b/src/queue.c
@@ -85,7 +85,7 @@ static void chomp(DynamicBuffer *buf)
     }
 }
 
-char const *SimpleTimeNoSpace(int tim)
+static char const *SimpleTimeNoSpace(int tim)
 {
     char *s = (char *) SimpleTime(tim);
     if (s && *s) {
@@ -209,7 +209,7 @@ maybe_close(int fd)
     (void) close(new_fd);
 }
 
-void
+static void
 SigContHandler(int d)
 {
     UNUSED(d);
diff --git a/src/rem2ps.c b/src/rem2ps.c
index 40f0061c..41d81f82 100644
--- a/src/rem2ps.c
+++ b/src/rem2ps.c
@@ -131,16 +131,16 @@ int LeftMarg, RightMarg, TopMarg, BotMarg;
 int FillPage;
 int Verbose = 0;
 
-void Init (int argc, char const *argv[]);
-void Usage (char const *s);
-void DoPsCal (void);
-int DoQueuedPs (void);
-void DoSmallCal (char const *m, int days, int first, int col, int which);
-void WriteProlog (void);
-void WriteCalEntry (void);
-void WriteOneEntry (CalEntry const *c);
-void GetSmallLocations (void);
-char const *EatToken(char const *in, char *out, int maxlen);
+static void Init (int argc, char const *argv[]);
+static void Usage (char const *s);
+static void DoPsCal (void);
+static int DoQueuedPs (void);
+static void DoSmallCal (char const *m, int days, int first, int col, int which);
+static void WriteProlog (void);
+static void WriteCalEntry (void);
+static void WriteOneEntry (CalEntry const *c);
+static void GetSmallLocations (void);
+static char const *EatToken(char const *in, char *out, int maxlen);
 
 static void
 put_escaped_string(char const *s)
@@ -161,7 +161,7 @@ put_escaped_string(char const *s)
 /*  Compare strings, case insensitive.                         */
 /*                                                             */
 /***************************************************************/
-int StrCmpi(char const *s1, char const *s2)
+static int StrCmpi(char const *s1, char const *s2)
 {
     int r;
     while (*s1 && *s2) {
@@ -375,7 +375,7 @@ int main(int argc, char const *argv[])
 /*  DoPsCal - emit PostScript for the calendar.                */
 /*                                                             */
 /***************************************************************/
-void DoPsCal(void)
+static void DoPsCal(void)
 {
     char month[40], year[40];
     char prevm[40], nextm[40];
@@ -595,7 +595,7 @@ void DoPsCal(void)
 /*  WriteProlog - write the PostScript prologue                */
 /*                                                             */
 /***************************************************************/
-void WriteProlog(void)
+static void WriteProlog(void)
 {
     int i;
     int x = CurPage->xsize;
@@ -702,7 +702,7 @@ void WriteProlog(void)
 /*  WriteCalEntry - write all entries for one day              */
 /*                                                             */
 /***************************************************************/
-void WriteCalEntry(void)
+static void WriteCalEntry(void)
 {
     CalEntry *c = CurEntries;
     CalEntry *d;
@@ -789,7 +789,7 @@ void WriteCalEntry(void)
 /*  WriteOneEntry - write an entry for one day                 */
 /*                                                             */
 /***************************************************************/
-void WriteOneEntry(CalEntry const *c)
+static void WriteOneEntry(CalEntry const *c)
 {
     int ch, i;
     char const *s = c->entry;
@@ -851,7 +851,7 @@ void WriteOneEntry(CalEntry const *c)
 /*  Init - set up parameters                                   */
 /*                                                             */
 /***************************************************************/
-void Init(int argc, char const *argv[])
+static void Init(int argc, char const *argv[])
 {
     char const *s;
     char const *t;
@@ -1043,7 +1043,7 @@ void Usage(char const *s)
 /*  month.                                                     */
 /*                                                             */
 /***************************************************************/
-void DoSmallCal(char const *m, int days, int first, int col, int which)
+static void DoSmallCal(char const *m, int days, int first, int col, int which)
 {
     /* Do the small calendar */
     int i, j;
@@ -1097,7 +1097,7 @@ void DoSmallCal(char const *m, int days, int first, int col, int which)
 /*  DoQueuedPs - do the queued PS and PSFILE reminders.        */
 /*                                                             */
 /***************************************************************/
-int DoQueuedPs(void)
+static int DoQueuedPs(void)
 {
     int i;
     int HadPS = 0;
@@ -1305,7 +1305,7 @@ int DoQueuedPs(void)
 /* Set up the locations for the small calendars.               */
 /*                                                             */
 /***************************************************************/
-void GetSmallLocations(void)
+static void GetSmallLocations(void)
 {
     char c;
     char const *s = SmallLocation;
@@ -1370,7 +1370,7 @@ void GetSmallLocations(void)
 /* Read a space-delimited token into an output buffer.         */
 /*                                                             */
 /***************************************************************/
-char const *EatToken(char const *in, char *out, int maxlen)
+static char const *EatToken(char const *in, char *out, int maxlen)
 {
     int i = 0;
 
diff --git a/src/token.c b/src/token.c
index 4676be75..ea2a5d4f 100644
--- a/src/token.c
+++ b/src/token.c
@@ -122,6 +122,7 @@ Token TokArray[] = {
 };
 
 static int TokStrCmp (Token const *t, char const *s);
+static void FindNumericToken(char const *s, Token *t);
 
 static void
 init_token(Token *t)
@@ -247,7 +248,7 @@ void FindToken(char const *s, Token *tok)
 /*  Rep - *n                                                   */
 /*                                                             */
 /***************************************************************/
-void FindNumericToken(char const *s, Token *t)
+static void FindNumericToken(char const *s, Token *t)
 {
     int mult = 1, hour, min;
     char const *s_orig = s;
diff --git a/src/trigger.c b/src/trigger.c
index 6e6f7d13..e61d098a 100644
--- a/src/trigger.c
+++ b/src/trigger.c
@@ -31,6 +31,8 @@ static int DSEYear(int dse);
 static int DSEMonth(int dse);
 static int NextSimpleTrig(int startdate, Trigger const *trig, int *err);
 static int GetNextTriggerDate(Trigger *trig, int start, int *err, int *nextstart);
+static int TrigInfoIsValid(char const *info);
+static int TrigInfoHeadersAreTheSame(char const *i1, char const *i2);
 
 /***************************************************************/
 /*                                                             */
@@ -683,7 +685,7 @@ int ComputeTriggerNoAdjustDuration(int today, Trigger *trig, TimeTrig const *tim
 /*  Returns NULL if memory allocation fails.                   */
 /*                                                             */
 /***************************************************************/
-TrigInfo *
+static TrigInfo *
 NewTrigInfo(char const *i)
 {
     TrigInfo *ti = malloc(sizeof(TrigInfo));
@@ -707,7 +709,7 @@ NewTrigInfo(char const *i)
 /*  Free a TrigInfo objects.                                   */
 /*                                                             */
 /***************************************************************/
-void
+static void
 FreeTrigInfo(TrigInfo *ti)
 {
     if (ti->info) {
@@ -774,7 +776,7 @@ AppendTrigInfo(Trigger *t, char const *info)
     return OK;
 }
 
-int
+static int
 TrigInfoHeadersAreTheSame(char const *i1, char const *i2)
 {
     char const *c1 = strchr(i1, ':');
@@ -785,7 +787,7 @@ TrigInfoHeadersAreTheSame(char const *i1, char const *i2)
     return 0;
 }
 
-int
+static int
 TrigInfoIsValid(char const *info)
 {
     char const *t;
diff --git a/src/var.c b/src/var.c
index 363157ab..0cce10bc 100644
--- a/src/var.c
+++ b/src/var.c
@@ -37,6 +37,8 @@ static int IntMax = INT_MAX;
 
 static hash_table VHashTbl;
 static int SetSysVarHelper(SysVar *v, Value *value);
+static unsigned int HashVal_ignorecase(char const *str);
+static void set_lat_and_long_from_components(void);
 
 static unsigned int VarHashFunc(void const *x)
 {
@@ -523,7 +525,7 @@ static int time_sep_func(int do_set, Value *val)
 /*  Given a string, compute the hash value case-insensitively  */
 /*                                                             */
 /***************************************************************/
-unsigned int HashVal_ignorecase(char const *str)
+static unsigned int HashVal_ignorecase(char const *str)
 {
     unsigned int h = 0, high;
     while(*str) {
@@ -576,7 +578,7 @@ Var *FindVar(char const *str, int create)
 /*  string and delete it.                                      */
 /*                                                             */
 /***************************************************************/
-int DeleteVar(char const *str)
+static int DeleteVar(char const *str)
 {
     Var *v;
 
@@ -622,27 +624,6 @@ int SetVar(char const *str, Value const *val, int nonconst_expr)
     return OK;
 }
 
-/***************************************************************/
-/*                                                             */
-/*  GetVarValue                                                */
-/*                                                             */
-/*  Get a copy of the value of the variable.                   */
-/*                                                             */
-/***************************************************************/
-int GetVarValue(char const *str, Value *val)
-{
-    Var *v;
-
-    v=FindVar(str, 0);
-
-    if (!v) {
-        Eprint("%s: `%s'", GetErr(E_NOSUCH_VAR), str);
-        return E_NOSUCH_VAR;
-    }
-    v->used_since_set = 1;
-    return CopyValue(val, &v->v);
-}
-
 /***************************************************************/
 /*                                                             */
 /*  DoSet - set a variable.                                    */
@@ -1333,7 +1314,7 @@ static void DumpSysVar(char const *name, const SysVar *v)
     return;
 }
 
-void
+static void
 set_lat_and_long_from_components(void)
 {
     Latitude = (double) LatDeg + ((double) LatMin) / 60.0 + ((double) LatSec) / 3600.0;