From 14b042d2061409540c6f645271bf562d15cc14cb Mon Sep 17 00:00:00 2001
From: Alan Coopersmith <alan.coopersmith@oracle.com>
Date: Wed, 7 Dec 2022 15:54:43 -0800
Subject: Make more things static that aren't needed in more than one file

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
---
 def.h   | 21 +++++++++++----------
 main.c  | 24 ++----------------------
 parse.c | 24 +++++++++++++++++++++++-
 3 files changed, 36 insertions(+), 33 deletions(-)

diff --git a/def.h b/def.h
index 9cbbe61..d1d97f2 100644
--- a/def.h
+++ b/def.h
@@ -52,7 +52,7 @@ in this Software without prior written authorization from The Open Group.
 #define	TRUE		1
 #define	FALSE		0
 
-/* the following must match the directives table in main.c */
+/* the following must match the directives table in parse.c */
 #define	IF		0
 #define	IFDEF		1
 #define	IFNDEF		2
@@ -137,23 +137,22 @@ struct filepointer {
 
 #include <stdlib.h>
 
+/* main.c */
 int match(const char *str, const char *const *list);
-char *base_name(const char *file);
 char *getnextline(struct filepointer *fp);
-struct symtab **slookup(const char *symbol, struct inclist *file);
-struct symtab **isdefined(const char *symbol, struct inclist *file,
-                          struct inclist **srcfile);
-struct symtab **fdefined(const char *symbol, struct inclist *file,
-                         struct inclist **srcfile);
 struct filepointer *getfile(const char *file);
+void freefile(struct filepointer *fp);
+
+/* include.c */
 void included_by(struct inclist *ip, struct inclist *newfile);
 struct inclist *newinclude(const char *newfile, const char *incstring,
                            const char *incpath);
 void inc_clean(void);
 struct inclist *inc_path(const char *file, const char *include, int type);
 
-void freefile(struct filepointer *fp);
-
+/* parse.c */
+struct symtab **isdefined(const char *symbol, struct inclist *file,
+                          struct inclist **srcfile);
 void define2(const char *name, const char *val, struct inclist *file);
 void define(char *def, struct inclist *file);
 void undefine(const char *symbol, struct inclist *file);
@@ -161,15 +160,18 @@ int find_includes(struct filepointer *filep,
                   struct inclist *file, struct inclist *file_red,
                   int recursion, boolean failOK);
 
+/* pr.c */
 void recursive_pr_include(struct inclist *head,
                           const char *file, const char *base);
 void add_include(struct filepointer *filep,
                  struct inclist *file, struct inclist *file_red,
                  const char *include, int type, boolean failOK);
 
+/* cppsetup.c */
 int cppsetup(const char *filename, const char *line,
              struct filepointer *filep, struct inclist *inc);
 
+/* main.c */
 extern void fatalerr(const char *, ...) _X_ATTRIBUTE_PRINTF(1, 2) _X_NORETURN;
 extern void warning(const char *, ...)  _X_ATTRIBUTE_PRINTF(1, 2);
 extern void warning1(const char *, ...) _X_ATTRIBUTE_PRINTF(1, 2);
@@ -180,7 +182,6 @@ extern struct inclist   *inclistnext;
 extern struct inclist   maininclist;
 extern const char       *includedirs[];
 extern const char       **includedirsnext;
-extern const char *const directives[];
 extern char             *notdotdot[];
 
 extern const char       *objprefix;
diff --git a/main.c b/main.c
index 2ede1bd..cffa27b 100644
--- a/main.c
+++ b/main.c
@@ -63,28 +63,7 @@ int _debugmask;
 #define DASH_INC_PRE    "#include \""
 #define DASH_INC_POST   "\""
 
-const char *ProgramName;
-
-const char *const directives[] = {
-    "if",
-    "ifdef",
-    "ifndef",
-    "else",
-    "endif",
-    "define",
-    "undef",
-    "include",
-    "line",
-    "pragma",
-    "error",
-    "ident",
-    "sccs",
-    "elif",
-    "eject",
-    "warning",
-    "include_next",
-    NULL
-};
+static const char *ProgramName;
 
 #include "imakemdep.h"
 
@@ -112,6 +91,7 @@ boolean         show_where_not = FALSE;
 boolean         warn_multiple = FALSE;
 
 static void setfile_cmdinc(struct filepointer *filep, long count, char **list);
+static char *base_name(const char *file);
 static void redirect(const char *line, const char *makefile);
 
 static void _X_NORETURN
diff --git a/parse.c b/parse.c
index 92431ea..cb6d133 100644
--- a/parse.c
+++ b/parse.c
@@ -31,8 +31,30 @@ static int deftype(char *line, struct filepointer *filep,
                    int parse_it);
 static int zero_value(char *filename, char *exp, struct filepointer *filep,
                       struct inclist *file_red);
+static struct symtab **slookup(const char *symbol, struct inclist *file);
 static boolean merge2defines(struct inclist *file1, struct inclist *file2);
 
+static const char *const directives[] = {
+    "if",
+    "ifdef",
+    "ifndef",
+    "else",
+    "endif",
+    "define",
+    "undef",
+    "include",
+    "line",
+    "pragma",
+    "error",
+    "ident",
+    "sccs",
+    "elif",
+    "eject",
+    "warning",
+    "include_next",
+    NULL
+};
+
 static int
 gobble(struct filepointer *filep, struct inclist *file,
        struct inclist *file_red)
@@ -245,7 +267,7 @@ deftype(char *line, struct filepointer *filep,
     return (ret);
 }
 
-struct symtab **
+static struct symtab **
 fdefined(const char *symbol, struct inclist *file, struct inclist **srcfile)
 {
     struct symtab **val;
-- 
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