diff --git a/src/chars.c b/src/chars.c

index beb88ca..1d73b81 100644

--- a/src/chars.c

+++ b/src/chars.c

@@ -79,6 +79,16 @@ bool is_byte(int c)

     return ((unsigned int)c == (unsigned char)c);

 }

+static void mbtowc_reset(void)

+{

+    IGNORE_CALL_RESULT(mbtowc(NULL, NULL, 0));

+}

+

+static void wctomb_reset(void)

+{

+    IGNORE_CALL_RESULT(wctomb(NULL, 0));

+}

+

 /* This function is equivalent to isalnum() for multibyte characters. */

 bool is_alnum_mbchar(const char *c)

 {

@@ -89,7 +99,7 @@ bool is_alnum_mbchar(const char *c)

 	wchar_t wc;

 	if (mbtowc(&wc, c, MB_CUR_MAX) < 0) {

-	    int shutup = mbtowc(NULL, NULL, 0);

+	    mbtowc_reset();

 	    wc = bad_wchar;

 	}

@@ -109,7 +119,7 @@ bool is_blank_mbchar(const char *c)

 	wchar_t wc;

 	if (mbtowc(&wc, c, MB_CUR_MAX) < 0) {

-	    int shutup = mbtowc(NULL, NULL, 0);

+	    mbtowc_reset();

 	    wc = bad_wchar;

 	}

@@ -156,7 +166,7 @@ bool is_cntrl_mbchar(const char *c)

 	wchar_t wc;

 	if (mbtowc(&wc, c, MB_CUR_MAX) < 0) {

-	    int shutup = mbtowc(NULL, NULL, 0);

+	    mbtowc_reset();

 	    wc = bad_wchar;

 	}

@@ -177,7 +187,7 @@ bool is_punct_mbchar(const char *c)

 	int c_mb_len = mbtowc(&wc, c, MB_CUR_MAX);

 	if (c_mb_len < 0) {

-	    int shutup = mbtowc(NULL, NULL, 0);

+	    mbtowc_reset();

 	    wc = bad_wchar;

 	}

@@ -243,14 +253,14 @@ char *control_mbrep(const char *c, char *crep, int *crep_len)

 	wchar_t wc;

 	if (mbtowc(&wc, c, MB_CUR_MAX) < 0) {

-	    int shutup = mbtowc(NULL, NULL, 0);

+	    mbtowc_reset();

 	    *crep_len = bad_mbchar_len;

 	    strncpy(crep, bad_mbchar, *crep_len);

 	} else {

 	    *crep_len = wctomb(crep, control_wrep(wc));

 	    if (*crep_len < 0) {

-		int shutup = wctomb(NULL, 0);

+		wctomb_reset();

 		*crep_len = 0;

 	    }

 	}

@@ -278,14 +288,14 @@ char *mbrep(const char *c, char *crep, int *crep_len)

 	/* Reject invalid Unicode characters. */

 	if (mbtowc(&wc, c, MB_CUR_MAX) < 0 || !is_valid_unicode(wc)) {

-	    int shutup = mbtowc(NULL, NULL, 0);

+	    mbtowc_reset();

 	    *crep_len = bad_mbchar_len;

 	    strncpy(crep, bad_mbchar, *crep_len);

 	} else {

 	    *crep_len = wctomb(crep, wc);

 	    if (*crep_len < 0) {

-		int shutup = wctomb(NULL, 0);

+		wctomb_reset();

 		*crep_len = 0;

 	    }

 	}

@@ -311,7 +321,7 @@ int mbwidth(const char *c)

 	int width;

 	if (mbtowc(&wc, c, MB_CUR_MAX) < 0) {

-	    int shutup = mbtowc(NULL, NULL, 0);

+	    mbtowc_reset();

 	    wc = bad_wchar;

 	}

@@ -356,7 +366,7 @@ char *make_mbchar(long chr, int *chr_mb_len)

 	/* Reject invalid Unicode characters. */

 	if (*chr_mb_len < 0 || !is_valid_unicode((wchar_t)chr)) {

-	    int shutup = wctomb(NULL, 0);

+	    wctomb_reset();

 	    *chr_mb_len = 0;

 	}

     } else {

@@ -388,7 +398,7 @@ int parse_mbchar(const char *buf, char *chr, size_t *col)

 	/* If buf contains an invalid multibyte character, only

 	 * interpret buf's first byte. */

 	if (buf_mb_len < 0) {

-	    int shutup = mblen(NULL, 0);

+	    IGNORE_CALL_RESULT(mblen(NULL, 0));

 	    buf_mb_len = 1;

 	} else if (buf_mb_len == 0)

 	    buf_mb_len++;

@@ -545,7 +555,7 @@ int mbstrncasecmp(const char *s1, const char *s2, size_t n)

 	    s1_mb_len = parse_mbchar(s1, s1_mb, NULL);

 	    if (mbtowc(&ws1, s1_mb, s1_mb_len) < 0) {

-		int shutup = mbtowc(NULL, NULL, 0);

+		mbtowc_reset();

 		ws1 = (unsigned char)*s1_mb;

 		bad_s1_mb = TRUE;

 	    }

@@ -553,7 +563,7 @@ int mbstrncasecmp(const char *s1, const char *s2, size_t n)

 	    s2_mb_len = parse_mbchar(s2, s2_mb, NULL);

 	    if (mbtowc(&ws2, s2_mb, s2_mb_len) < 0) {

-		int shutup = mbtowc(NULL, NULL, 0);

+		mbtowc_reset();

 		ws2 = (unsigned char)*s2_mb;

 		bad_s2_mb = TRUE;

 	    }

@@ -781,7 +791,7 @@ char *mbstrchr(const char *s, const char *c)

 	int c_mb_len = mbtowc(&wc, c, MB_CUR_MAX);

 	if (c_mb_len < 0) {

-	    int shutup = mbtowc(NULL, NULL, 0);

+	    mbtowc_reset();

 	    wc = (unsigned char)*c;

 	    bad_c_mb = TRUE;

 	}

@@ -790,7 +800,7 @@ char *mbstrchr(const char *s, const char *c)

 	    int s_mb_len = parse_mbchar(s, s_mb, NULL);

 	    if (mbtowc(&ws, s_mb, s_mb_len) < 0) {

-		int shutup = mbtowc(NULL, NULL, 0);

+		mbtowc_reset();

 		ws = (unsigned char)*s;

 		bad_s_mb = TRUE;

 	    }

diff --git a/src/files.c b/src/files.c

index 17eb431..92d6d88 100644

--- a/src/files.c

+++ b/src/files.c

@@ -1092,7 +1092,6 @@ char *get_full_path(const char *origpath)

     char *d_here, *d_there, *d_there_file = NULL;

     const char *last_slash;

     bool path_only;

-    int shutup;

     if (origpath == NULL)

     	return NULL;

@@ -1191,7 +1190,7 @@ char *get_full_path(const char *origpath)

 	    /* Finally, go back to the path specified in d_here,

 	     * where we were before.  We don't check for a chdir()

 	     * error, since we can do nothing if we get one. */

-	    shutup = chdir(d_here);

+	    IGNORE_CALL_RESULT(chdir(d_here));

 	    /* Free d_here, since we're done using it. */

 	    free(d_here);

diff --git a/src/nano.h b/src/nano.h

index 0cc8f22..2fe383f 100644

--- a/src/nano.h

+++ b/src/nano.h

@@ -54,6 +54,9 @@

 #include <stdarg.h>

 #endif

+/* Suppress warnings for __attribute__((warn_unused_result)) */

+#define IGNORE_CALL_RESULT(call) do { if (call) {} } while(0)

+

 /* Macros for flags. */

 #define FLAGOFF(flag) ((flag) / (sizeof(unsigned) * 8))

 #define FLAGMASK(flag) (1 << ((flag) % (sizeof(unsigned) * 8)))