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-rw-r--r--libc/misc/regex/regex_internal.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/libc/misc/regex/regex_internal.c b/libc/misc/regex/regex_internal.c
index f9814d290..c1ee85040 100644
--- a/libc/misc/regex/regex_internal.c
+++ b/libc/misc/regex/regex_internal.c
@@ -289,7 +289,7 @@ build_wcs_upper_buffer (re_string_t *pstr)
{
/* In case of a singlebyte character. */
pstr->mbs[byte_idx]
- = toupper (pstr->raw_mbs[pstr->raw_mbs_idx + byte_idx]);
+ = __toupper (pstr->raw_mbs[pstr->raw_mbs_idx + byte_idx]);
/* The next step uses the assumption that wchar_t is encoded
ASCII-safe: all ASCII values can be converted like this. */
pstr->wcs[byte_idx] = (wchar_t) pstr->mbs[byte_idx];
@@ -523,7 +523,7 @@ build_upper_buffer (re_string_t *pstr)
if (BE (pstr->trans != NULL, 0))
ch = pstr->trans[ch];
if (islower (ch))
- pstr->mbs[char_idx] = toupper (ch);
+ pstr->mbs[char_idx] = __toupper (ch);
else
pstr->mbs[char_idx] = ch;
}