support: don't declare strcasestr() if provided by the system

If the system library provides strcasestr(), don't do an extra
declaration in support.h.

diff --git a/src/support.h b/src/support.h
index 48786e8e23f5706255253d9aacbb281410c96e1c..bebbbdad0c60fa05762fb9d8230b763135e5984e 100644 (file)
--- a/src/support.h
+++ b/src/support.h
@@ -24,7 +24,9 @@
 
 #include <glib.h>
 
+#ifndef HAVE_STRCASESTR
 const char *strcasestr(const char *haystack, const char *needle);
+#endif
 
 #ifndef NCMPC_MINI