fix "variable 'foo' set but not used" warnings

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/archival/libarchive/bz/compress.c b/archival/libarchive/bz/compress.c
index 6f1c70a..f936717 100644 (file)
--- a/archival/libarchive/bz/compress.c
+++ b/archival/libarchive/bz/compress.c
@@ -251,7 +251,7 @@ void sendMTFValues(EState* s)
 {
        int32_t v, t, i, j, gs, ge, totc, bt, bc, iter;
        int32_t nSelectors, alphaSize, minLen, maxLen, selCtr;
-       int32_t nGroups, nBytes;
+       int32_t nGroups;
 
        /*
         * uint8_t len[BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
@@ -512,7 +512,6 @@ void sendMTFValues(EState* s)
                        }
                }
 
-               nBytes = s->numZ;
                bsW(s, 16, inUse16);
 
                inUse16 <<= (sizeof(int)*8 - 16); /* move 15th bit into sign bit */
@@ -528,7 +527,6 @@ void sendMTFValues(EState* s)
        }
 
        /*--- Now the selectors. ---*/
-       nBytes = s->numZ;
        bsW(s, 3, nGroups);
        bsW(s, 15, nSelectors);
        for (i = 0; i < nSelectors; i++) {
@@ -538,8 +536,6 @@ void sendMTFValues(EState* s)
        }
 
        /*--- Now the coding tables. ---*/
-       nBytes = s->numZ;
-
        for (t = 0; t < nGroups; t++) {
                int32_t curr = s->len[t][0];
                bsW(s, 5, curr);
@@ -551,7 +547,6 @@ void sendMTFValues(EState* s)
        }
 
        /*--- And finally, the block data proper ---*/
-       nBytes = s->numZ;
        selCtr = 0;
        gs = 0;
        while (1) {

diff --git a/e2fsprogs/fsck.c b/e2fsprogs/fsck.c
index b4257a2..fcbdb59 100644 (file)
--- a/e2fsprogs/fsck.c
+++ b/e2fsprogs/fsck.c
@@ -317,7 +317,6 @@ static void load_fs_info(const char *filename)
 {
        FILE *fstab;
        struct mntent mte;
-       struct fs_info *fs;
 
        fstab = setmntent(filename, "r");
        if (!fstab) {
@@ -330,7 +329,7 @@ static void load_fs_info(const char *filename)
                //bb_info_msg("CREATE[%s][%s][%s][%s][%d]", mte.mnt_fsname, mte.mnt_dir,
                //      mte.mnt_type, mte.mnt_opts,
                //      mte.mnt_passno);
-               fs = create_fs_device(mte.mnt_fsname, mte.mnt_dir,
+               create_fs_device(mte.mnt_fsname, mte.mnt_dir,
                        mte.mnt_type, mte.mnt_opts,
                        mte.mnt_passno);
        }

diff --git a/editors/vi.c b/editors/vi.c
index fd8bd0f..638b3b7 100644 (file)
--- a/editors/vi.c
+++ b/editors/vi.c
@@ -536,7 +536,6 @@ static void edit_file(char *fn)
 #define cur_line edit_file__cur_line
 #endif
        int c;
-       int size;
 #if ENABLE_FEATURE_VI_USE_SIGNALS
        int sig;
 #endif
@@ -545,7 +544,6 @@ static void edit_file(char *fn)
        rawmode();
        rows = 24;
        columns = 80;
-       size = 0;
        IF_FEATURE_VI_ASK_TERMINAL(G.get_rowcol_error =) query_screen_dimensions();
 #if ENABLE_FEATURE_VI_ASK_TERMINAL
        if (G.get_rowcol_error /* TODO? && no input on stdin */) {

diff --git a/libbb/dump.c b/libbb/dump.c
index 1b1d03a..919fe13 100644 (file)
--- a/libbb/dump.c
+++ b/libbb/dump.c
@@ -99,7 +99,7 @@ static NOINLINE int bb_dump_size(FS *fs)
 static NOINLINE void rewrite(priv_dumper_t *dumper, FS *fs)
 {
        enum { NOTOKAY, USEBCNT, USEPREC } sokay;
-       PR *pr, **nextpr = NULL;
+       PR *pr;
        FU *fu;
        char *p1, *p2, *p3;
        char savech, *fmtp;
@@ -111,15 +111,12 @@ static NOINLINE void rewrite(priv_dumper_t *dumper, FS *fs)
                 * break each format unit into print units; each
                 * conversion character gets its own.
                 */
-               for (nconv = 0, fmtp = fu->fmt; *fmtp; nextpr = &pr->nextpr) {
+               for (nconv = 0, fmtp = fu->fmt; *fmtp; ) {
                        /* NOSTRICT */
                        /* DBU:[dvae@cray.com] zalloc so that forward ptrs start out NULL*/
                        pr = xzalloc(sizeof(PR));
                        if (!fu->nextpr)
                                fu->nextpr = pr;
-                       /* ignore nextpr -- its unused inside the loop and is
-                        * uninitialized 1st time through.
-                        */
 
                        /* skip preceding text and up to the next % sign */
                        for (p1 = fmtp; *p1 && *p1 != '%'; ++p1)

diff --git a/miscutils/last_fancy.c b/miscutils/last_fancy.c
index 7e61b76..dc09b65 100644 (file)
--- a/miscutils/last_fancy.c
+++ b/miscutils/last_fancy.c
@@ -161,11 +161,10 @@ int last_main(int argc UNUSED_PARAM, char **argv)
        time_t boot_time;
        time_t down_time;
        int file;
-       unsigned opt;
        smallint going_down;
        smallint boot_down;
 
-       opt = getopt32(argv, "Wf:" /* "H" */, &filename);
+       /*opt =*/ getopt32(argv, "Wf:" /* "H" */, &filename);
 #ifdef BUT_UTIL_LINUX_LAST_HAS_NO_SUCH_OPT
        if (opt & LAST_OPT_H) {
                /* Print header line */

diff --git a/networking/ftpgetput.c b/networking/ftpgetput.c
index 66316e2..f63df55 100644 (file)
--- a/networking/ftpgetput.c
+++ b/networking/ftpgetput.c
@@ -60,7 +60,7 @@ struct globals {
        FILE *control_stream;
        int verbose_flag;
        int do_continue;
-       char buf[1]; /* actually [BUFSZ] */
+       char buf[4]; /* actually [BUFSZ] */
 } FIX_ALIASING;
 #define G (*(struct globals*)&bb_common_bufsiz1)
 enum { BUFSZ = COMMON_BUFSIZE - offsetof(struct globals, buf) };
@@ -105,7 +105,7 @@ static int ftpcmd(const char *s1, const char *s2)
        }
 
        do {
-               strcpy(buf, "EOF");
+               strcpy(buf, "EOF"); /* for ftp_die */
                if (fgets(buf, BUFSZ - 2, control_stream) == NULL) {
                        ftp_die(NULL);
                }
@@ -316,7 +316,6 @@ static const char ftpgetput_longopts[] ALIGN1 =
 int ftpgetput_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int ftpgetput_main(int argc UNUSED_PARAM, char **argv)
 {
-       unsigned opt;
        const char *port = "ftp";
        /* socket to ftp server */
 
@@ -345,7 +344,7 @@ int ftpgetput_main(int argc UNUSED_PARAM, char **argv)
        applet_long_options = ftpgetput_longopts;
 #endif
        opt_complementary = "-2:vv:cc"; /* must have 2 to 3 params; -v and -c count */
-       opt = getopt32(argv, "cvu:p:P:", &user, &password, &port,
+       getopt32(argv, "cvu:p:P:", &user, &password, &port,
                                        &verbose_flag, &do_continue);
        argv += optind;
 

diff --git a/procps/powertop.c b/procps/powertop.c
index bfe5a95..008cdfc 100644 (file)
--- a/procps/powertop.c
+++ b/procps/powertop.c
@@ -393,11 +393,9 @@ static NOINLINE int process_timer_stats(void)
        char buf[128];
        char line[15 + 3 + 128];
        int n;
-       ullong totalticks;
        FILE *fp;
 
        buf[0] = '\0';
-       totalticks = 0;
 
        n = 0;
        fp = NULL;

diff --git a/runit/sv.c b/runit/sv.c
index 322688a..5b01c87 100644 (file)
--- a/runit/sv.c
+++ b/runit/sv.c
@@ -437,7 +437,6 @@ static int control(const char *a)
 int sv_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int sv_main(int argc UNUSED_PARAM, char **argv)
 {
-       unsigned opt;
        char *x;
        char *action;
        const char *varservice = CONFIG_SV_DEFAULT_SERVICE_DIR;
@@ -458,7 +457,7 @@ int sv_main(int argc UNUSED_PARAM, char **argv)
        if (x) waitsec = xatou(x);
 
        opt_complementary = "w+:vv"; /* -w N, -v is a counter */
-       opt = getopt32(argv, "w:v", &waitsec, &verbose);
+       getopt32(argv, "w:v", &waitsec, &verbose);
        argv += optind;
        action = *argv++;
        if (!action || !*argv) bb_show_usage();

diff --git a/shell/hush.c b/shell/hush.c
index 4c348ec..9cc86fa 100644 (file)
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -4517,11 +4517,11 @@ static struct pipe *parse_stream(char **pstring,
                        break;
 #if ENABLE_HUSH_TICK
                case '`': {
-                       unsigned pos;
+                       USE_FOR_NOMMU(unsigned pos;)
 
                        o_addchr(&dest, SPECIAL_VAR_SYMBOL);
                        o_addchr(&dest, '`');
-                       pos = dest.length;
+                       USE_FOR_NOMMU(pos = dest.length;)
                        if (!add_till_backquote(&dest, input, /*in_dquote:*/ 0))
                                goto parse_error;
 # if !BB_MMU