diff --git a/meson.build b/meson.build
index 60586806..257603d2 100644
--- a/meson.build
+++ b/meson.build
@@ -257,7 +257,7 @@ config.set('TAISEI_BUILDCONF_HAVE_POSIX', have_posix)
 config.set('TAISEI_BUILDCONF_HAVE_SINCOS', cc.has_function('sincos', dependencies : dep_m))
 
 use_gnu_funcs = false
-gnu_funcs = ['sincos', 'strtok_r']
+gnu_funcs = ['sincos', 'strtok_r', 'memrchr']
 
 foreach f : gnu_funcs
     have = cc.has_function(f, dependencies : dep_m)
diff --git a/src/util/stringops.c b/src/util/stringops.c
index d96fdcb7..6709d01c 100644
--- a/src/util/stringops.c
+++ b/src/util/stringops.c
@@ -417,3 +417,17 @@ void expand_escape_sequences(char *str) {
 		p[-1] = 0;
 	}
 }
+
+#ifndef TAISEI_BUILDCONF_HAVE_MEMRCHR
+void *memrchr(const void *s, int c, size_t n) {
+	const char *mem = s;
+
+	for(const char *p = mem + n - 1; p >= mem; --p) {
+		if(*p == c) {
+			return (void*)p;
+		}
+	}
+
+	return NULL;
+}
+#endif
diff --git a/src/util/stringops.h b/src/util/stringops.h
index 292ebffa..54bcdeba 100644
--- a/src/util/stringops.h
+++ b/src/util/stringops.h
@@ -38,6 +38,12 @@ INLINE attr_returns_allocated attr_nonnull(1) char *strdup(const char *str) {
 char *strtok_r(char *str, const char *delim, char **nextp);
 #endif
 
+#ifndef TAISEI_BUILDCONF_HAVE_MEMRCHR
+#undef memrchr
+#define memrchr _ts_memrchr
+void *memrchr(const void *s, int c, size_t n);
+#endif
+
 #undef strcasecmp
 #define strcasecmp SDL_strcasecmp