diff --git a/libbf.c b/libbf.c
index abdbece..7c5bdb4 100644
--- a/libbf.c
+++ b/libbf.c
@@ -2833,7 +2833,7 @@ int bf_mul_pow_radix(bf_t *r, const bf_t *T, limb_t radix,
     return ret;
 }
 
-static inline int to_digit(int c)
+static inline int bf_to_digit(int c)
 {
     if (c >= '0' && c <= '9')
         return c - '0';
@@ -2940,7 +2940,7 @@ static int bf_atof_internal(bf_t *r, slimb_t *pexponent,
             goto no_prefix;
         }
         /* there must be a digit after the prefix */
-        if (to_digit((uint8_t)*p) >= radix) {
+        if (bf_to_digit((uint8_t)*p) >= radix) {
             bf_set_nan(r);
             ret = 0;
             goto done;
@@ -2988,14 +2988,14 @@ static int bf_atof_internal(bf_t *r, slimb_t *pexponent,
     int_len = digit_count = 0;
     for(;;) {
         limb_t c;
-        if (*p == '.' && (p > p_start || to_digit(p[1]) < radix)) {
+        if (*p == '.' && (p > p_start || bf_to_digit(p[1]) < radix)) {
             if (has_decpt)
                 break;
             has_decpt = TRUE;
             int_len = digit_count;
             p++;
         }
-        c = to_digit(*p);
+        c = bf_to_digit(*p);
         if (c >= radix)
             break;
         digit_count++;
@@ -3076,7 +3076,7 @@ static int bf_atof_internal(bf_t *r, slimb_t *pexponent,
         }
         for(;;) {
             int c;
-            c = to_digit(*p);
+            c = bf_to_digit(*p);
             if (c >= 10)
                 break;
             if (unlikely(expn > ((BF_RAW_EXP_MAX - 2 - 9) / 10))) {
@@ -8410,3 +8410,7 @@ int bf_get_fft_size(int *pdpl, int *pnb_mods, limb_t len)
 }
 
 #endif /* !USE_FFT_MUL */
+
+#undef malloc
+#undef free
+#undef realloc
diff --git a/libregexp.c b/libregexp.c
index a26b74c..e372f27 100644
--- a/libregexp.c
+++ b/libregexp.c
@@ -109,7 +109,7 @@ static const REOpCode reopcode_info[REOP_COUNT] = {
 
 #define RE_HEADER_LEN 8
 
-static inline int is_digit(int c) {
+static inline int lre_is_digit(int c) {
     return c >= '0' && c <= '9';
 }
 
@@ -577,7 +577,7 @@ int lre_parse_escape(const uint8_t **pp, int allow_utf16)
         c -= '0';
         if (allow_utf16 == 2) {
             /* only accept \0 not followed by digit */
-            if (c != 0 || is_digit(*p))
+            if (c != 0 || lre_is_digit(*p))
                 return -1;
         } else {
             /* parse a legacy octal sequence */
@@ -1285,7 +1285,7 @@ static int re_parse_term(REParseState *s, BOOL is_backward_dir)
     case '{':
         if (s->is_unicode) {
             return re_parse_error(s, "syntax error");
-        } else if (!is_digit(p[1])) {
+        } else if (!lre_is_digit(p[1])) {
             /* Annex B: we accept '{' not followed by digits as a
                normal atom */
             goto parse_class_atom;
@@ -1295,7 +1295,7 @@ static int re_parse_term(REParseState *s, BOOL is_backward_dir)
             parse_digits(&p1, TRUE);
             if (*p1 == ',') {
                 p1++;
-                if (is_digit(*p1)) {
+                if (lre_is_digit(*p1)) {
                     parse_digits(&p1, TRUE);
                 }
             }
@@ -1443,7 +1443,7 @@ static int re_parse_term(REParseState *s, BOOL is_backward_dir)
             p += 2;
             c = 0;
             if (s->is_unicode) {
-                if (is_digit(*p)) {
+                if (lre_is_digit(*p)) {
                     return re_parse_error(s, "invalid decimal escape in regular expression");
                 }
             } else {
@@ -1565,7 +1565,7 @@ static int re_parse_term(REParseState *s, BOOL is_backward_dir)
                 const uint8_t *p1 = p;
                 /* As an extension (see ES6 annex B), we accept '{' not
                    followed by digits as a normal atom */
-                if (!is_digit(p[1])) {
+                if (!lre_is_digit(p[1])) {
                     if (s->is_unicode)
                         goto invalid_quant_count;
                     break;
@@ -1575,7 +1575,7 @@ static int re_parse_term(REParseState *s, BOOL is_backward_dir)
                 quant_max = quant_min;
                 if (*p == ',') {
                     p++;
-                    if (is_digit(*p)) {
+                    if (lre_is_digit(*p)) {
                         quant_max = parse_digits(&p, TRUE);
                         if (quant_max < quant_min) {
                         invalid_quant_count:
@@ -1812,7 +1812,7 @@ static int re_parse_disjunction(REParseState *s, BOOL is_backward_dir)
 }
 
 /* the control flow is recursive so the analysis can be linear */
-static int compute_stack_size(const uint8_t *bc_buf, int bc_buf_len)
+static int lre_compute_stack_size(const uint8_t *bc_buf, int bc_buf_len)
 {
     int stack_size, stack_size_max, pos, opcode, len;
     uint32_t val;
@@ -1925,7 +1925,7 @@ uint8_t *lre_compile(int *plen, char *error_msg, int error_msg_size,
         goto error;
     }
 
-    stack_size = compute_stack_size(s->byte_code.buf, s->byte_code.size);
+    stack_size = lre_compute_stack_size(s->byte_code.buf, s->byte_code.size);
     if (stack_size < 0) {
         re_parse_error(s, "too many imbricated quantifiers");
         goto error;
diff --git a/quickjs.c b/quickjs.c
index b75c8cd..a61bfe2 100644
--- a/quickjs.c
+++ b/quickjs.c
@@ -47750,7 +47750,7 @@ static int64_t math_mod(int64_t a, int64_t b) {
     return m + (m < 0) * b;
 }
 
-static int64_t floor_div(int64_t a, int64_t b) {
+static int64_t floor_div_int64(int64_t a, int64_t b) {
     /* integer division rounding toward -Infinity */
     int64_t m = a % b;
     return (a - (m + (m < 0) * b)) / b;
@@ -47784,8 +47784,8 @@ static JSValue JS_SetThisTimeValue(JSContext *ctx, JSValue this_val, double v)
 }
 
 static int64_t days_from_year(int64_t y) {
-    return 365 * (y - 1970) + floor_div(y - 1969, 4) -
-        floor_div(y - 1901, 100) + floor_div(y - 1601, 400);
+    return 365 * (y - 1970) + floor_div_int64(y - 1969, 4) -
+        floor_div_int64(y - 1901, 100) + floor_div_int64(y - 1601, 400);
 }
 
 static int64_t days_in_year(int64_t y) {
@@ -47795,7 +47795,7 @@ static int64_t days_in_year(int64_t y) {
 /* return the year, update days */
 static int64_t year_from_days(int64_t *days) {
     int64_t y, d1, nd, d = *days;
-    y = floor_div(d * 10000, 3652425) + 1970;
+    y = floor_div_int64(d * 10000, 3652425) + 1970;
     /* the initial approximation is very good, so only a few
        iterations are necessary */
     for(;;) {
@@ -53183,3 +53183,7 @@ static void _JS_AddIntrinsicCallSite(JSContext *ctx)
                                js_callsite_proto_funcs,
                                countof(js_callsite_proto_funcs));
 }
+
+#undef malloc
+#undef free
+#undef realloc