ash: convert #ifdef CONFIG_ to #if ENABLE_

diff --git a/shell/ash.c b/shell/ash.c
index a4ce3ffcd3c4ab12b8835bd823fbcde71cadf8ce..981532120930cb398748b1473b86277c1f21f43d 100644 (file)
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -82,13 +82,13 @@
 #include <time.h>
 #include <fnmatch.h>
 
-#ifdef CONFIG_ASH_JOB_CONTROL
+#if ENABLE_ASH_JOB_CONTROL
 #define JOBS 1
 #else
 #define JOBS 0
 #endif
 
-#if JOBS || defined(CONFIG_ASH_READ_NCHARS)
+#if JOBS || ENABLE_ASH_READ_NCHARS
 #include <termios.h>
 #endif
 
@@ -111,7 +111,7 @@ static int *dash_errno;
 #endif
 
 
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
 /*      alias.h       */
 
 #define ALIASINUSE      1
@@ -225,7 +225,7 @@ static void exerror(int, const char *, ...) ATTRIBUTE_NORETURN;
 
 static void sh_warnx(const char *, ...);
 
-#ifdef CONFIG_ASH_OPTIMIZE_FOR_SIZE
+#if ENABLE_ASH_OPTIMIZE_FOR_SIZE
 static void
 inton(void) {
        if (--suppressint == 0 && intpending) {
@@ -254,7 +254,7 @@ static void forceinton(void)
                if (intpending) onint(); \
                0; \
        })
-#endif /* CONFIG_ASH_OPTIMIZE_FOR_SIZE */
+#endif /* ASH_OPTIMIZE_FOR_SIZE */
 
 /*      expand.h     */
 
@@ -289,7 +289,7 @@ static void expandarg(union node *, struct arglist *, int);
 static char *_rmescapes(char *, int);
 static int casematch(union node *, char *);
 
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
 static void expari(int);
 #endif
 
@@ -340,7 +340,6 @@ struct backcmd {                /* result of evalbackcmd */
 #define NNOT 25
 
 
-
 struct ncmd {
        int type;
        union node *assign;
@@ -348,28 +347,24 @@ struct ncmd {
        union node *redirect;
 };
 
-
 struct npipe {
        int type;
        int backgnd;
        struct nodelist *cmdlist;
 };
 
-
 struct nredir {
        int type;
        union node *n;
        union node *redirect;
 };
 
-
 struct nbinary {
        int type;
        union node *ch1;
        union node *ch2;
 };
 
-
 struct nif {
        int type;
        union node *test;
@@ -377,7 +372,6 @@ struct nif {
        union node *elsepart;
 };
 
-
 struct nfor {
        int type;
        union node *args;
@@ -385,14 +379,12 @@ struct nfor {
        char *var;
 };
 
-
 struct ncase {
        int type;
        union node *expr;
        union node *cases;
 };
 
-
 struct nclist {
        int type;
        union node *next;
@@ -400,7 +392,6 @@ struct nclist {
        union node *body;
 };
 
-
 struct narg {
        int type;
        union node *next;
@@ -408,7 +399,6 @@ struct narg {
        struct nodelist *backquote;
 };
 
-
 struct nfile {
        int type;
        union node *next;
@@ -417,7 +407,6 @@ struct nfile {
        char *expfname;
 };
 
-
 struct ndup {
        int type;
        union node *next;
@@ -426,7 +415,6 @@ struct ndup {
        union node *vname;
 };
 
-
 struct nhere {
        int type;
        union node *next;
@@ -434,13 +422,11 @@ struct nhere {
        union node *doc;
 };
 
-
 struct nnot {
        int type;
        union node *com;
 };
 
-
 union node {
        int type;
        struct ncmd ncmd;
@@ -458,13 +444,11 @@ union node {
        struct nnot nnot;
 };
 
-
 struct nodelist {
        struct nodelist *next;
        union node *n;
 };
 
-
 struct funcnode {
        int count;
        union node n;
@@ -529,7 +513,7 @@ struct strpush {
        struct strpush *prev;   /* preceding string on stack */
        char *prevstring;
        int prevnleft;
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
        struct alias *ap;       /* if push was associated with an alias */
 #endif
        char *string;           /* remember the string since it may change */
@@ -709,7 +693,7 @@ static const char *tokname(int tok)
 #define CSPCL 13                /* these terminate a word */
 #define CIGN 14                 /* character should be ignored */
 
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
 #define SYNBASE 130
 #define PEOF -130
 #define PEOA -129
@@ -741,7 +725,7 @@ static const char *tokname(int tok)
  * This file was generated by the mksyntax program.
  */
 
-#ifdef CONFIG_ASH_OPTIMIZE_FOR_SIZE
+#if ENABLE_ASH_OPTIMIZE_FOR_SIZE
 #define USE_SIT_FUNCTION
 #endif
 
@@ -751,9 +735,9 @@ static const char *tokname(int tok)
 #define  SQSYNTAX    2  /* in single quotes */
 #define  ARISYNTAX   3  /* in arithmetic */
 
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
 static const char S_I_T[][4] = {
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
        {CSPCL, CIGN, CIGN, CIGN},              /* 0, PEOA */
 #endif
        {CSPCL, CWORD, CWORD, CWORD},           /* 1, ' ' */
@@ -775,7 +759,7 @@ static const char S_I_T[][4] = {
 };
 #else
 static const char S_I_T[][3] = {
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
        {CSPCL, CIGN, CIGN},                    /* 0, PEOA */
 #endif
        {CSPCL, CWORD, CWORD},                  /* 1, ' ' */
@@ -795,7 +779,7 @@ static const char S_I_T[][3] = {
        {CCTL, CCTL, CCTL}                      /* 14, CTLESC ... */
 #endif
 };
-#endif /* CONFIG_ASH_MATH_SUPPORT */
+#endif /* ASH_MATH_SUPPORT */
 
 #ifdef USE_SIT_FUNCTION
 
@@ -804,7 +788,7 @@ static const char S_I_T[][3] = {
 static int SIT(int c, int syntax)
 {
        static const char spec_symbls[] = "\t\n !\"$&'()*-/:;<=>?[\\]`|}~";
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
        static const char syntax_index_table[] = {
                1, 2, 1, 3, 4, 5, 1, 6,         /* "\t\n !\"$&'" */
                7, 8, 3, 3, 3, 3, 1, 1,         /* "()*-/:;<" */
@@ -824,7 +808,7 @@ static int SIT(int c, int syntax)
 
        if (c == PEOF)          /* 2^8+2 */
                return CENDFILE;
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
        if (c == PEOA)          /* 2^8+1 */
                indx = 0;
        else
@@ -844,7 +828,7 @@ static int SIT(int c, int syntax)
 
 #define SIT(c, syntax) S_I_T[(int)syntax_index_table[((int)c)+SYNBASE]][syntax]
 
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
 #define CSPCL_CIGN_CIGN_CIGN                           0
 #define CSPCL_CWORD_CWORD_CWORD                        1
 #define CNL_CNL_CNL_CNL                                2
@@ -880,7 +864,7 @@ static int SIT(int c, int syntax)
 static const char syntax_index_table[258] = {
        /* BASESYNTAX_DQSYNTAX_SQSYNTAX_ARISYNTAX */
        /*   0  PEOF */      CENDFILE_CENDFILE_CENDFILE_CENDFILE,
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
        /*   1  PEOA */      CSPCL_CIGN_CIGN_CIGN,
 #endif
        /*   2  -128 0x80 */ CWORD_CWORD_CWORD_CWORD,
@@ -1215,15 +1199,15 @@ static int bgcmd(int, char **);
 #endif
 static int breakcmd(int, char **);
 static int cdcmd(int, char **);
-#ifdef CONFIG_ASH_CMDCMD
+#if ENABLE_ASH_CMDCMD
 static int commandcmd(int, char **);
 #endif
 static int dotcmd(int, char **);
 static int evalcmd(int, char **);
-#ifdef CONFIG_ASH_BUILTIN_ECHO
+#if ENABLE_ASH_BUILTIN_ECHO
 static int echocmd(int, char **);
 #endif
-#ifdef CONFIG_ASH_BUILTIN_TEST
+#if ENABLE_ASH_BUILTIN_TEST
 static int testcmd(int, char **);
 #endif
 static int execcmd(int, char **);
@@ -1233,7 +1217,7 @@ static int falsecmd(int, char **);
 #if JOBS
 static int fgcmd(int, char **);
 #endif
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
 static int getoptscmd(int, char **);
 #endif
 static int hashcmd(int, char **);
@@ -1243,7 +1227,7 @@ static int helpcmd(int argc, char **argv);
 #if JOBS
 static int jobscmd(int, char **);
 #endif
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
 static int letcmd(int, char **);
 #endif
 static int localcmd(int, char **);
@@ -1266,7 +1250,7 @@ static int killcmd(int, char **);
 
 /*      mail.h        */
 
-#ifdef CONFIG_ASH_MAIL
+#if ENABLE_ASH_MAIL
 static void chkmail(void);
 static void changemail(const char *);
 #endif
@@ -1314,11 +1298,11 @@ struct builtincmd {
 static const struct builtincmd builtincmd[] = {
        { BUILTIN_SPEC_REG      ".", dotcmd },
        { BUILTIN_SPEC_REG      ":", truecmd },
-#ifdef CONFIG_ASH_BUILTIN_TEST
+#if ENABLE_ASH_BUILTIN_TEST
        { BUILTIN_REGULAR       "[", testcmd },
        { BUILTIN_REGULAR       "[[", testcmd },
 #endif
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
        { BUILTIN_REG_ASSG      "alias", aliascmd },
 #endif
 #if JOBS
@@ -1327,11 +1311,11 @@ static const struct builtincmd builtincmd[] = {
        { BUILTIN_SPEC_REG      "break", breakcmd },
        { BUILTIN_REGULAR       "cd", cdcmd },
        { BUILTIN_NOSPEC        "chdir", cdcmd },
-#ifdef CONFIG_ASH_CMDCMD
+#if ENABLE_ASH_CMDCMD
        { BUILTIN_REGULAR       "command", commandcmd },
 #endif
        { BUILTIN_SPEC_REG      "continue", breakcmd },
-#ifdef CONFIG_ASH_BUILTIN_ECHO
+#if ENABLE_ASH_BUILTIN_ECHO
        { BUILTIN_REGULAR       "echo", echocmd },
 #endif
        { BUILTIN_SPEC_REG      "eval", evalcmd },
@@ -1342,7 +1326,7 @@ static const struct builtincmd builtincmd[] = {
 #if JOBS
        { BUILTIN_REGULAR       "fg", fgcmd },
 #endif
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
        { BUILTIN_REGULAR       "getopts", getoptscmd },
 #endif
        { BUILTIN_NOSPEC        "hash", hashcmd },
@@ -1353,7 +1337,7 @@ static const struct builtincmd builtincmd[] = {
        { BUILTIN_REGULAR       "jobs", jobscmd },
        { BUILTIN_REGULAR       "kill", killcmd },
 #endif
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
        { BUILTIN_NOSPEC        "let", letcmd },
 #endif
        { BUILTIN_ASSIGN        "local", localcmd },
@@ -1364,7 +1348,7 @@ static const struct builtincmd builtincmd[] = {
        { BUILTIN_SPEC_REG      "set", setcmd },
        { BUILTIN_SPEC_REG      "shift", shiftcmd },
        { BUILTIN_SPEC_REG      "source", dotcmd },
-#ifdef CONFIG_ASH_BUILTIN_TEST
+#if ENABLE_ASH_BUILTIN_TEST
        { BUILTIN_REGULAR       "test", testcmd },
 #endif
        { BUILTIN_SPEC_REG      "times", timescmd },
@@ -1373,7 +1357,7 @@ static const struct builtincmd builtincmd[] = {
        { BUILTIN_NOSPEC        "type", typecmd },
        { BUILTIN_NOSPEC        "ulimit", ulimitcmd },
        { BUILTIN_REGULAR       "umask", umaskcmd },
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
        { BUILTIN_REGULAR       "unalias", unaliascmd },
 #endif
        { BUILTIN_SPEC_REG      "unset", unsetcmd },
@@ -1411,7 +1395,7 @@ static void changepath(const char *);
 static void defun(char *, union node *);
 static void unsetfunc(const char *);
 
-#ifdef CONFIG_ASH_MATH_SUPPORT_64
+#if ENABLE_ASH_MATH_SUPPORT_64
 typedef int64_t arith_t;
 #define arith_t_type (long long)
 #else
@@ -1419,12 +1403,12 @@ typedef long arith_t;
 #define arith_t_type (long)
 #endif
 
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
 static arith_t dash_arith(const char *);
 static arith_t arith(const char *expr, int *perrcode);
 #endif
 
-#ifdef CONFIG_ASH_RANDOM_SUPPORT
+#if ENABLE_ASH_RANDOM_SUPPORT
 static unsigned long rseed;
 static void change_random(const char *);
 # ifndef DYNAMIC_VAR
@@ -1480,11 +1464,11 @@ static struct localvar *localvars;
  * Shell variables.
  */
 
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
 static void getoptsreset(const char *);
 #endif
 
-#ifdef CONFIG_LOCALE_SUPPORT
+#if ENABLE_LOCALE_SUPPORT
 static void change_lc_all(const char *value);
 static void change_lc_ctype(const char *value);
 #endif
@@ -1508,7 +1492,7 @@ static struct var varinit[] = {
        { 0,    VSTRFIXED|VTEXTFIXED|VUNSET,    "IFS\0",        0 },
 #endif
 
-#ifdef CONFIG_ASH_MAIL
+#if ENABLE_ASH_MAIL
        { 0,    VSTRFIXED|VTEXTFIXED|VUNSET,    "MAIL\0",       changemail },
        { 0,    VSTRFIXED|VTEXTFIXED|VUNSET,    "MAILPATH\0",   changemail },
 #endif
@@ -1517,13 +1501,13 @@ static struct var varinit[] = {
        { 0,    VSTRFIXED|VTEXTFIXED,           "PS1=$ ",       0          },
        { 0,    VSTRFIXED|VTEXTFIXED,           "PS2=> ",       0          },
        { 0,    VSTRFIXED|VTEXTFIXED,           "PS4=+ ",       0          },
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
        { 0,    VSTRFIXED|VTEXTFIXED,           "OPTIND=1",     getoptsreset },
 #endif
-#ifdef CONFIG_ASH_RANDOM_SUPPORT
+#if ENABLE_ASH_RANDOM_SUPPORT
        {0, VSTRFIXED|VTEXTFIXED|VUNSET|VDYNAMIC, "RANDOM\0", change_random },
 #endif
-#ifdef CONFIG_LOCALE_SUPPORT
+#if ENABLE_LOCALE_SUPPORT
        {0, VSTRFIXED | VTEXTFIXED | VUNSET, "LC_ALL\0", change_lc_all },
        {0, VSTRFIXED | VTEXTFIXED | VUNSET, "LC_CTYPE\0", change_lc_ctype },
 #endif
@@ -1533,7 +1517,7 @@ static struct var varinit[] = {
 };
 
 #define vifs varinit[0]
-#ifdef CONFIG_ASH_MAIL
+#if ENABLE_ASH_MAIL
 #define vmail (&vifs)[1]
 #define vmpath (&vmail)[1]
 #else
@@ -1544,7 +1528,7 @@ static struct var varinit[] = {
 #define vps2 (&vps1)[1]
 #define vps4 (&vps2)[1]
 #define voptind (&vps4)[1]
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
 #define vrandom (&voptind)[1]
 #else
 #define vrandom (&vps4)[1]
@@ -1579,7 +1563,7 @@ static char **listvars(int, int, char ***);
 static int showvars(const char *, int, int);
 static void poplocalvars(void);
 static int unsetvar(const char *);
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
 static int setvarsafe(const char *, const char *, int);
 #endif
 static int varcmp(const char *, const char *);
@@ -1905,7 +1889,7 @@ struct shparam {
        int nparam;             /* # of positional parameters (without $0) */
        unsigned char malloc;   /* if parameter list dynamically allocated */
        char **p;               /* parameter list */
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
        int optind;             /* next parameter to be processed by getopts */
        int optoff;             /* used by getopts */
 #endif
@@ -2093,7 +2077,7 @@ reset(void)
        }
 }
 
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
 static struct alias *atab[ATABSIZE];
 
 static void setalias(const char *, const char *);
@@ -2274,7 +2258,7 @@ __lookupalias(const char *name) {
 
        return app;
 }
-#endif /* CONFIG_ASH_ALIAS */
+#endif /* ASH_ALIAS */
 
 
 /*      cd.c      */
@@ -2531,7 +2515,6 @@ setpwd(const char *val, int setold)
  */
 
 
-
 static void exverror(int, const char *, va_list) ATTRIBUTE_NORETURN;
 
 /*
@@ -2668,7 +2651,6 @@ static const char *
 errmsg(int e, const char *em)
 {
        if (e == ENOENT || e == ENOTDIR) {
-
                return em;
        }
        return strerror(e);
@@ -2771,7 +2753,6 @@ evalstring(char *s, int mask)
 }
 
 
-
 /*
  * Evaluate a parse tree.  The value is left in the global variable
  * exitstatus.
@@ -2933,7 +2914,6 @@ skipping:         if (evalskip == SKIPCONT && --skipcount <= 0) {
 }
 
 
-
 static void
 evalfor(union node *n, int flags)
 {
@@ -3002,7 +2982,6 @@ out:
 }
 
 
-
 /*
  * Kick off a subshell to evaluate a tree.
  */
@@ -3037,7 +3016,6 @@ nofork:
 }
 
 
-
 /*
  * Compute the names of the files in a redirection list.
  */
@@ -3075,7 +3053,6 @@ expredir(union node *n)
 }
 
 
-
 /*
  * Evaluate a pipeline.  All the processes in the pipeline are children
  * of the process creating the pipeline.  (This differs from some versions
@@ -3138,7 +3115,6 @@ evalpipe(union node *n, int flags)
 }
 
 
-
 /*
  * Execute a command inside back quotes.  If it's a builtin command, we
  * want to save its output in a block obtained from malloc.  Otherwise
@@ -3191,7 +3167,7 @@ out:
                result->fd, result->buf, result->nleft, result->jp));
 }
 
-#ifdef CONFIG_ASH_CMDCMD
+#if ENABLE_ASH_CMDCMD
 static char ** parse_command_args(char **argv, const char **path)
 {
        char *cp, c;
@@ -3231,7 +3207,7 @@ static int isassignment(const char *p)
        return *q == '=';
 }
 
-#ifdef CONFIG_ASH_EXPAND_PRMT
+#if ENABLE_ASH_EXPAND_PRMT
 static const char *expandstr(const char *ps);
 #else
 #define expandstr(s) s
@@ -3373,7 +3349,7 @@ evalcommand(union node *cmd, int flags)
                                spclbltin = IS_BUILTIN_SPECIAL(cmdentry.u.cmd);
                        if (cmdentry.u.cmd == EXECCMD)
                                cmd_is_exec++;
-#ifdef CONFIG_ASH_CMDCMD
+#if ENABLE_ASH_CMDCMD
                        if (cmdentry.u.cmd == COMMANDCMD) {
 
                                path = oldpath;
@@ -3523,7 +3499,7 @@ evalfun(struct funcnode *func, int argc, char **argv, int flags)
        INTON;
        shellparam.nparam = argc - 1;
        shellparam.p = argv + 1;
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
        shellparam.optind = 1;
        shellparam.optoff = -1;
 #endif
@@ -3768,7 +3744,7 @@ tryexec(char *cmd, char **argv, char **envp)
 #if ENABLE_FEATURE_SH_STANDALONE_SHELL
        if (find_applet_by_name(cmd) != NULL) {
                /* re-exec ourselves with the new arguments */
-               execve(CONFIG_BUSYBOX_EXEC_PATH,argv,envp);
+               execve(CONFIG_BUSYBOX_EXEC_PATH, argv, envp);
                /* If they called chroot or otherwise made the binary no longer
                 * executable, fall through */
        }
@@ -4115,7 +4091,6 @@ find_builtin(const char *name)
 }
 
 
-
 /*
  * Called when a cd is done.  Marks all commands so the next time they
  * are executed they will be rehashed.
@@ -4140,7 +4115,6 @@ hashcd(void)
 }
 
 
-
 /*
  * Fix command hash table when PATH changed.
  * Called before PATH is changed.  The argument is the new value of PATH;
@@ -4357,7 +4331,7 @@ unsetfunc(const char *name)
  */
 
 
-#ifdef CONFIG_ASH_CMDCMD
+#if ENABLE_ASH_CMDCMD
 static int
 describe_command(char *command, int describe_command_verbose)
 #else
@@ -4368,7 +4342,7 @@ describe_command(char *command)
 {
        struct cmdentry entry;
        struct tblentry *cmdp;
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
        const struct alias *ap;
 #endif
        const char *path = pathval();
@@ -4383,7 +4357,7 @@ describe_command(char *command)
                goto out;
        }
 
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
        /* Then look at the aliases */
        if ((ap = lookupalias(command, 0)) != NULL) {
                if (describe_command_verbose) {
@@ -4465,7 +4439,7 @@ typecmd(int argc, char **argv)
        int err = 0;
 
        for (i = 1; i < argc; i++) {
-#ifdef CONFIG_ASH_CMDCMD
+#if ENABLE_ASH_CMDCMD
                err |= describe_command(argv[i], 1);
 #else
                err |= describe_command(argv[i]);
@@ -4474,7 +4448,7 @@ typecmd(int argc, char **argv)
        return err;
 }
 
-#ifdef CONFIG_ASH_CMDCMD
+#if ENABLE_ASH_CMDCMD
 static int
 commandcmd(int argc, char **argv)
 {
@@ -4670,7 +4644,7 @@ argstr(char *p, int flag)
                CTLVAR,
                CTLBACKQ,
                CTLBACKQ | CTLQUOTE,
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
                CTLENDARI,
 #endif
                0
@@ -4707,7 +4681,7 @@ start:
                length += strcspn(p + length, reject);
                c = p[length];
                if (c && (!(c & 0x80)
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
                                        || c == CTLENDARI
 #endif
                   )) {
@@ -4785,7 +4759,7 @@ addquote:
                        expbackq(argbackq->n, c, quotes);
                        argbackq = argbackq->next;
                        goto start;
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
                case CTLENDARI:
                        p--;
                        expari(quotes);
@@ -4886,7 +4860,7 @@ removerecordregions(int endoff)
 }
 
 
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
 /*
  * Expand arithmetic expression.  Backup to start of expression,
  * evaluate, place result in (backed up) result, adjust string position.
@@ -5474,7 +5448,6 @@ ifsbreakup(char *string, struct arglist *arglist)
        int ifsspc;
        int nulonly;
 
-
        start = string;
        if (ifslastp != NULL) {
                ifsspc = 0;
@@ -5790,7 +5763,7 @@ msort(struct strlist *list, int len)
        p = msort(p, len - half);               /* sort second half */
        lpp = &list;
        for (;;) {
-#ifdef CONFIG_LOCALE_SUPPORT
+#if ENABLE_LOCALE_SUPPORT
                if (strcoll(p->text, q->text) < 0)
 #else
                if (strcmp(p->text, q->text) < 0)
@@ -5925,7 +5898,7 @@ cvtnum(arith_t num)
        int len;
 
        expdest = makestrspace(32, expdest);
-#ifdef CONFIG_ASH_MATH_SUPPORT_64
+#if ENABLE_ASH_MATH_SUPPORT_64
        len = fmtstr(expdest, 32, "%lld", (long long) num);
 #else
        len = fmtstr(expdest, 32, "%ld", num);
@@ -5971,7 +5944,7 @@ static void pushfile(void);
 
 #define pgetc_as_macro()   (--parsenleft >= 0? SC2INT(*parsenextc++) : preadbuffer())
 
-#ifdef CONFIG_ASH_OPTIMIZE_FOR_SIZE
+#if ENABLE_ASH_OPTIMIZE_FOR_SIZE
 #define pgetc_macro() pgetc()
 static int
 pgetc(void)
@@ -5991,7 +5964,7 @@ pgetc(void)
 /*
  * Same as pgetc(), but ignores PEOA.
  */
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
 static int pgetc2(void)
 {
        int c;
@@ -6131,7 +6104,7 @@ preadbuffer(void)
        char savec;
 
        while (parsefile->strpush) {
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
                if (parsenleft == -1 && parsefile->strpush->ap &&
                        parsenextc[-1] != ' ' && parsenextc[-1] != '\t') {
                        return PEOA;
@@ -6227,7 +6200,7 @@ pushstring(char *s, void *ap)
                sp = parsefile->strpush = &(parsefile->basestrpush);
        sp->prevstring = parsenextc;
        sp->prevnleft = parsenleft;
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
        sp->ap = (struct alias *)ap;
        if (ap) {
                ((struct alias *)ap)->flag |= ALIASINUSE;
@@ -6245,7 +6218,7 @@ popstring(void)
        struct strpush *sp = parsefile->strpush;
 
        INTOFF;
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
        if (sp->ap) {
                if (parsenextc[-1] == ' ' || parsenextc[-1] == '\t') {
                        checkkwd |= CHKALIAS;
@@ -7705,7 +7678,7 @@ cmdputs(const char *s)
                case CTLBACKQ+CTLQUOTE:
                        str = "\"$(...)\"";
                        goto dostr;
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
                case CTLARI:
                        str = "$((";
                        goto dostr;
@@ -7805,7 +7778,7 @@ getstatus(struct job *job) {
        return retval;
 }
 
-#ifdef CONFIG_ASH_MAIL
+#if ENABLE_ASH_MAIL
 /*      mail.c       */
 
 /*
@@ -7875,7 +7848,7 @@ changemail(const char *val)
        mail_var_path_changed++;
 }
 
-#endif /* CONFIG_ASH_MAIL */
+#endif /* ASH_MAIL */
 
 /*      main.c       */
 
@@ -7951,7 +7924,7 @@ int ash_main(int argc, char **argv)
 #endif
        rootpid = getpid();
 
-#ifdef CONFIG_ASH_RANDOM_SUPPORT
+#if ENABLE_ASH_RANDOM_SUPPORT
        rseed = rootpid + ((time_t)time((time_t *)0));
 #endif
        init();
@@ -8048,7 +8021,7 @@ cmdloop(int top)
                inter = 0;
                if (iflag && top) {
                        inter++;
-#ifdef CONFIG_ASH_MAIL
+#if ENABLE_ASH_MAIL
                        chkmail();
 #endif
                }
@@ -8192,7 +8165,7 @@ exitcmd(int argc, char **argv)
        /* NOTREACHED */
 }
 
-#ifdef CONFIG_ASH_BUILTIN_ECHO
+#if ENABLE_ASH_BUILTIN_ECHO
 static int
 echocmd(int argc, char **argv)
 {
@@ -8200,7 +8173,7 @@ echocmd(int argc, char **argv)
 }
 #endif
 
-#ifdef CONFIG_ASH_BUILTIN_TEST
+#if ENABLE_ASH_BUILTIN_TEST
 static int
 testcmd(int argc, char **argv)
 {
@@ -8853,7 +8826,7 @@ setarg0:
        }
 
        shellparam.p = xargv;
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
        shellparam.optind = 1;
        shellparam.optoff = -1;
 #endif
@@ -8965,7 +8938,6 @@ setoption(int flag, int val)
 }
 
 
-
 /*
  * Set the shell parameters.
  */
@@ -8987,7 +8959,7 @@ setparam(char **argv)
        shellparam.malloc = 1;
        shellparam.nparam = nparam;
        shellparam.p = newparam;
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
        shellparam.optind = 1;
        shellparam.optoff = -1;
 #endif
@@ -9011,7 +8983,6 @@ freeparam(volatile struct shparam *param)
 }
 
 
-
 /*
  * The shift builtin command.
  */
@@ -9035,7 +9006,7 @@ shiftcmd(int argc, char **argv)
        }
        ap2 = shellparam.p;
        while ((*ap2++ = *ap1++) != NULL);
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
        shellparam.optind = 1;
        shellparam.optoff = -1;
 #endif
@@ -9044,7 +9015,6 @@ shiftcmd(int argc, char **argv)
 }
 
 
-
 /*
  * The set command builtin.
  */
@@ -9065,7 +9035,7 @@ setcmd(int argc, char **argv)
 }
 
 
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
 static void
 getoptsreset(const char *value)
 {
@@ -9074,7 +9044,7 @@ getoptsreset(const char *value)
 }
 #endif
 
-#ifdef CONFIG_LOCALE_SUPPORT
+#if ENABLE_LOCALE_SUPPORT
 static void change_lc_all(const char *value)
 {
        if (value != 0 && *value != 0)
@@ -9089,7 +9059,7 @@ static void change_lc_ctype(const char *value)
 
 #endif
 
-#ifdef CONFIG_ASH_RANDOM_SUPPORT
+#if ENABLE_ASH_RANDOM_SUPPORT
 /* Roughly copied from bash.. */
 static void change_random(const char *value)
 {
@@ -9110,7 +9080,7 @@ static void change_random(const char *value)
 #endif
 
 
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
 static int
 getopts(char *optstr, char *optvar, char **optfirst, int *param_optind, int *optoff)
 {
@@ -9232,7 +9202,7 @@ getoptscmd(int argc, char **argv)
        return getopts(argv[1], argv[2], optbase, &shellparam.optind,
                        &shellparam.optoff);
 }
-#endif /* CONFIG_ASH_GETOPTS */
+#endif /* ASH_GETOPTS */
 
 /*
  * XXX - should get rid of.  have all builtins use getopt(3).  the
@@ -9345,7 +9315,6 @@ fmtstr(char *outbuf, size_t length, const char *fmt, ...)
 }
 
 
-
 /*      parser.c     */
 
 
@@ -9386,8 +9355,6 @@ static void synerror(const char *) ATTRIBUTE_NORETURN;
 static void setprompt(int);
 
 
-
-
 /*
  * Read and parse a command.  Returns NEOF on end of file.  (NULL is a
  * valid parse tree indicating a blank line.)
@@ -9482,7 +9449,6 @@ list(int nlflag)
 }
 
 
-
 static union node *
 andor(void)
 {
@@ -9510,7 +9476,6 @@ andor(void)
 }
 
 
-
 static union node *
 pipeline(void)
 {
@@ -9554,7 +9519,6 @@ pipeline(void)
 }
 
 
-
 static union node *
 command(void)
 {
@@ -9604,7 +9568,8 @@ command(void)
                n1->type = (lasttoken == TWHILE)? NWHILE : NUNTIL;
                n1->nbinary.ch1 = list(0);
                if ((got=readtoken()) != TDO) {
-TRACE(("expecting DO got %s %s\n", tokname(got), got == TWORD ? wordtext : ""));
+                       TRACE(("expecting DO got %s %s\n", tokname(got),
+                                       got == TWORD ? wordtext : ""));
                        synexpect(TDO);
                }
                n1->nbinary.ch2 = list(0);
@@ -9942,7 +9907,7 @@ readtoken(void)
        int alreadyseen = tokpushback;
 #endif
 
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
 top:
 #endif
 
@@ -9976,7 +9941,7 @@ top:
        }
 
        if (checkkwd & CHKALIAS) {
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
                struct alias *ap;
                if ((ap = lookupalias(wordtext, 1)) != NULL) {
                        if (*ap->val) {
@@ -10050,7 +10015,7 @@ static int xxreadtoken(void)
                c = pgetc_macro();
 
                if ((c != ' ') && (c != '\t')
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
                        && (c != PEOA)
 #endif
                        ) {
@@ -10117,7 +10082,7 @@ xxreadtoken(void)
                c = pgetc_macro();
                switch (c) {
                case ' ': case '\t':
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
                case PEOA:
 #endif
                        continue;
@@ -10317,7 +10282,7 @@ readtoken1(int firstc, int syntax, char *eofmark, int striptabs)
                                        USTPUTC(c, out);
                                }
                                break;
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
                        case CLP:       /* '(' in arithmetic */
                                parenlevel++;
                                USTPUTC(c, out);
@@ -10358,7 +10323,7 @@ readtoken1(int firstc, int syntax, char *eofmark, int striptabs)
                        default:
                                if (varnest == 0)
                                        goto endword;   /* exit outer loop */
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
                                if (c != PEOA)
 #endif
                                        USTPUTC(c, out);
@@ -10368,7 +10333,7 @@ readtoken1(int firstc, int syntax, char *eofmark, int striptabs)
                }
        }
  endword:
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
        if (syntax == ARISYNTAX)
                synerror("Missing '))'");
 #endif
@@ -10402,7 +10367,6 @@ readtoken1(int firstc, int syntax, char *eofmark, int striptabs)
 /* end of readtoken routine */
 
 
-
 /*
  * Check to see whether we are at the end of the here document.  When this
  * is called, c is set to the first character of the next input line.  If
@@ -10411,7 +10375,7 @@ readtoken1(int firstc, int syntax, char *eofmark, int striptabs)
 
 checkend: {
        if (eofmark) {
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
                if (c == PEOA) {
                        c = pgetc2();
                }
@@ -10526,7 +10490,7 @@ parsesub: {
                pungetc();
        } else if (c == '(') {  /* $(command) or $((arith)) */
                if (pgetc() == '(') {
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
                        PARSEARITH();
 #else
                        synerror("We unsupport $((arith))");
@@ -10691,7 +10655,7 @@ parsebackq: {
                                /* fall through */
 
                        case PEOF:
-#ifdef CONFIG_ASH_ALIAS
+#if ENABLE_ASH_ALIAS
                        case PEOA:
 #endif
                                startlinno = plinno;
@@ -10768,7 +10732,7 @@ done:
                goto parsebackq_newreturn;
 }
 
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
 /*
  * Parse an arithmetic expansion (indicate start of one and set state)
  */
@@ -10795,7 +10759,6 @@ parsearith: {
 } /* end of readtoken */
 
 
-
 /*
  * Returns true if the text contains nothing to expand (no dollar signs
  * or backquotes).
@@ -10872,7 +10835,7 @@ synerror(const char *msg)
  *    should be added here.
  */
 
-#ifdef CONFIG_ASH_EXPAND_PRMT
+#if ENABLE_ASH_EXPAND_PRMT
 static const char *
 expandstr(const char *ps)
 {
@@ -10896,7 +10859,7 @@ expandstr(const char *ps)
 static void setprompt(int whichprompt)
 {
        const char *prompt;
-#ifdef CONFIG_ASH_EXPAND_PRMT
+#if ENABLE_ASH_EXPAND_PRMT
        struct stackmark smark;
 #endif
 
@@ -10912,12 +10875,12 @@ static void setprompt(int whichprompt)
        default:                        /* 0 */
                prompt = nullstr;
        }
-#ifdef CONFIG_ASH_EXPAND_PRMT
+#if ENABLE_ASH_EXPAND_PRMT
        setstackmark(&smark);
        stalloc(stackblocksize());
 #endif
        putprompt(expandstr(prompt));
-#ifdef CONFIG_ASH_EXPAND_PRMT
+#if ENABLE_ASH_EXPAND_PRMT
        popstackmark(&smark);
 #endif
 }
@@ -11113,7 +11076,6 @@ static void dupredirect(union node *redir, int f)
                copyfd(f, fd);
                close(f);
        }
-       return;
 }
 
 /*
@@ -11386,7 +11348,6 @@ shcmd(union node *cmd, FILE *fp)
 }
 
 
-
 static void
 sharg(union node *arg, FILE *fp)
 {
@@ -11484,7 +11445,6 @@ indent(int amount, char *pfx, FILE *fp)
 }
 
 
-
 /*
  * Debugging stuff.
  */
@@ -11639,7 +11599,6 @@ opentrace(void)
 #define S_RESET 5               /* temporary - to reset a hard ignored sig */
 
 
-
 /*
  * The trap builtin.
  */
@@ -11928,7 +11887,7 @@ static int helpcmd(int argc, char **argv)
        out1fmt("\n\n");
        return EXIT_SUCCESS;
 }
-#endif /* CONFIG_FEATURE_SH_EXTRA_QUIET */
+#endif /* FEATURE_SH_EXTRA_QUIET */
 
 /*
  * Called to exit the shell.
@@ -11976,7 +11935,7 @@ static struct var **findvar(struct var **, const char *);
  */
 
 
-#ifdef CONFIG_ASH_GETOPTS
+#if ENABLE_ASH_GETOPTS
 /*
  * Safe version of setvar, returns 1 on success 0 on failure.
  */
@@ -12223,7 +12182,6 @@ showvars(const char *sep_prefix, int on, int off)
 }
 
 
-
 /*
  * The export and readonly commands.
  */
@@ -12433,7 +12391,6 @@ out:
 }
 
 
-
 /*
  * Find the appropriate entry in the hash table from the name.
  */
@@ -12450,7 +12407,6 @@ hashvar(const char *p)
 }
 
 
-
 /*
  * Compares two strings up to the first = or '\0'.  The first
  * string must be terminated by '='; the second may be terminated by
@@ -12526,7 +12482,7 @@ static int timescmd(int ac, char **av)
        return 0;
 }
 
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
 static arith_t
 dash_arith(const char *s)
 {
@@ -12573,7 +12529,7 @@ letcmd(int argc, char **argv)
 
        return !i;
 }
-#endif /* CONFIG_ASH_MATH_SUPPORT */
+#endif /* ASH_MATH_SUPPORT */
 
 /*      miscbltin.c  */
 
@@ -12608,13 +12564,13 @@ readcmd(int argc, char **argv)
        int startword;
        int status;
        int i;
-#if defined(CONFIG_ASH_READ_NCHARS)
+#if ENABLE_ASH_READ_NCHARS
        int nch_flag = 0;
        int nchars = 0;
        int silent = 0;
        struct termios tty, old_tty;
 #endif
-#if defined(CONFIG_ASH_READ_TIMEOUT)
+#if ENABLE_ASH_READ_TIMEOUT
        fd_set set;
        struct timeval ts;
 
@@ -12623,11 +12579,11 @@ readcmd(int argc, char **argv)
 
        rflag = 0;
        prompt = NULL;
-#if defined(CONFIG_ASH_READ_NCHARS) && defined(CONFIG_ASH_READ_TIMEOUT)
+#if ENABLE_ASH_READ_NCHARS && ENABLE_ASH_READ_TIMEOUT
        while ((i = nextopt("p:rt:n:s")) != '\0')
-#elif defined(CONFIG_ASH_READ_NCHARS)
+#elif ENABLE_ASH_READ_NCHARS
        while ((i = nextopt("p:rn:s")) != '\0')
-#elif defined(CONFIG_ASH_READ_TIMEOUT)
+#elif ENABLE_ASH_READ_TIMEOUT
        while ((i = nextopt("p:rt:")) != '\0')
 #else
        while ((i = nextopt("p:r")) != '\0')
@@ -12637,7 +12593,7 @@ readcmd(int argc, char **argv)
                case 'p':
                        prompt = optionarg;
                        break;
-#if defined(CONFIG_ASH_READ_NCHARS)
+#if ENABLE_ASH_READ_NCHARS
                case 'n':
                        nchars = strtol(optionarg, &p, 10);
                        if (*p)
@@ -12648,7 +12604,7 @@ readcmd(int argc, char **argv)
                        silent = 1;
                        break;
 #endif
-#if defined(CONFIG_ASH_READ_TIMEOUT)
+#if ENABLE_ASH_READ_TIMEOUT
                case 't':
                        ts.tv_sec = strtol(optionarg, &p, 10);
                        ts.tv_usec = 0;
@@ -12687,7 +12643,7 @@ readcmd(int argc, char **argv)
                sh_error("arg count");
        if ((ifs = bltinlookup("IFS")) == NULL)
                ifs = defifs;
-#if defined(CONFIG_ASH_READ_NCHARS)
+#if ENABLE_ASH_READ_NCHARS
        if (nch_flag || silent) {
                tcgetattr(0, &tty);
                old_tty = tty;
@@ -12702,14 +12658,14 @@ readcmd(int argc, char **argv)
                tcsetattr(0, TCSANOW, &tty);
        }
 #endif
-#if defined(CONFIG_ASH_READ_TIMEOUT)
+#if ENABLE_ASH_READ_TIMEOUT
        if (ts.tv_sec || ts.tv_usec) {
                FD_ZERO (&set);
                FD_SET (0, &set);
 
                i = select(FD_SETSIZE, &set, NULL, NULL, &ts);
                if (!i) {
-#if defined(CONFIG_ASH_READ_NCHARS)
+#if ENABLE_ASH_READ_NCHARS
                        if (nch_flag)
                                tcsetattr(0, TCSANOW, &old_tty);
 #endif
@@ -12721,7 +12677,7 @@ readcmd(int argc, char **argv)
        startword = 1;
        backslash = 0;
        STARTSTACKSTR(p);
-#if defined(CONFIG_ASH_READ_NCHARS)
+#if ENABLE_ASH_READ_NCHARS
        while (!nch_flag || nchars--)
 #else
        for (;;)
@@ -12760,7 +12716,7 @@ put:
                        STPUTC(c, p);
                }
        }
-#if defined(CONFIG_ASH_READ_NCHARS)
+#if ENABLE_ASH_READ_NCHARS
        if (nch_flag || silent)
                tcsetattr(0, TCSANOW, &old_tty);
 #endif
@@ -13024,7 +12980,7 @@ ulimitcmd(int argc, char **argv)
 }
 
 
-#ifdef CONFIG_ASH_MATH_SUPPORT
+#if ENABLE_ASH_MATH_SUPPORT
 
 /* Copyright (c) 2001 Aaron Lehmann <aaronl@vitelus.com>
 
@@ -13416,7 +13372,7 @@ static int arith_apply(operator op, v_n_t *numstack, v_n_t **numstackptr)
                        goto err;
                }
                /* save to shell variable */
-#ifdef CONFIG_ASH_MATH_SUPPORT_64
+#if ENABLE_ASH_MATH_SUPPORT_64
                snprintf(buf, sizeof(buf), "%lld", arith_t_type rez);
 #else
                snprintf(buf, sizeof(buf), "%ld", arith_t_type rez);
@@ -13560,7 +13516,7 @@ static arith_t arith(const char *expr, int *perrcode)
                        continue;
                } else if (is_digit(arithval)) {
                        numstackptr->var = NULL;
-#ifdef CONFIG_ASH_MATH_SUPPORT_64
+#if ENABLE_ASH_MATH_SUPPORT_64
                        numstackptr->val = strtoll(expr, (char **) &expr, 0);
 #else
                        numstackptr->val = strtol(expr, (char **) &expr, 0);
@@ -13668,7 +13624,7 @@ static arith_t arith(const char *expr, int *perrcode)
                ++expr;
        } /* while */
 }
-#endif /* CONFIG_ASH_MATH_SUPPORT */
+#endif /* ASH_MATH_SUPPORT */
 
 
 #if DEBUG