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-rw-r--r--libc/string/generic/bp-checks.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libc/string/generic/bp-checks.h b/libc/string/generic/bp-checks.h
index efbb84716..08c70aa5d 100644
--- a/libc/string/generic/bp-checks.h
+++ b/libc/string/generic/bp-checks.h
@@ -92,7 +92,7 @@ extern void *__unbounded __ubp_memchr (const void *__unbounded, int, unsigned);
cover a region of NBYTES. Such a vector occupies one byte per page
of memory. */
# define CHECK_N_PAGES(ARG, NBYTES) \
- ({ int _page_size_ = sysconf (_SC_PAGE_SIZE); \
+ ({ int _page_size_ = __sysconf (_SC_PAGE_SIZE); \
CHECK_N ((const char *) (ARG), \
((NBYTES) + _page_size_ - 1) / _page_size_); })