--- a/include/bsd/stdlib.h
+++ b/include/bsd/stdlib.h
@@ -67,9 +67,6 @@ int sradixsort(const unsigned char **base, int nmemb,
                const unsigned char *table, unsigned endbyte);
 
 void *reallocf(void *ptr, size_t size);
-#if defined(_GNU_SOURCE) && defined(__GLIBC__) && !__GLIBC_PREREQ(2, 26)
-void *reallocarray(void *ptr, size_t nmemb, size_t size);
-#endif
 
 long long strtonum(const char *nptr, long long minval, long long maxval,
                    const char **errstr);
--- a/include/bsd/string.h
+++ b/include/bsd/string.h
@@ -42,9 +42,6 @@ size_t strlcat(char *dst, const char *src, size_t siz);
 char *strnstr(const char *str, const char *find, size_t str_len);
 void strmode(mode_t mode, char *str);
 
-#if defined(_GNU_SOURCE) && defined(__GLIBC__) && !__GLIBC_PREREQ(2, 25)
-void explicit_bzero(void *buf, size_t len);
-#endif
 __END_DECLS
 
 #endif