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-rw-r--r--lib/portability.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/portability.h b/lib/portability.h
index d81ddead..76790f4d 100644
--- a/lib/portability.h
+++ b/lib/portability.h
@@ -103,6 +103,8 @@ char *dirname(char *path);
char *__xpg_basename(char *path);
static inline char *basename(char *path) { return __xpg_basename(path); }
char *strcasestr(const char *haystack, const char *needle);
+void *memmem(const void *haystack, size_t haystack_length,
+ const void *needle, size_t needle_length);
#endif // defined(glibc)
// getopt_long(), getopt_long_only(), and struct option.