meson: Check for strdup

meson.build

@@ -94,7 +94,7 @@ config.set('ENABLE_BUILTIN', enable_builtin)
 config.set('HAVE_UNISTD_H', cc.check_header('unistd.h'))
 config.set('HAVE_STDINT_H', cc.check_header('stdint.h'))
 config.set('HAVE_DIRENT_H', cc.check_header('dirent.h'))
-config.set('HAVE_STRNDUP', cc.has_function('strndup'))
+config.set('HAVE_STRDUP', cc.has_function('strdup'))
 config.set('HAVE_CLOCK_GETTIME', cc.has_function('clock_gettime'))
 config.set('HAVE_FMEMOPEN', cc.has_function('fmemopen'))
 config.set('HAVE_NL_LANGINFO', cc.has_function('nl_langinfo'))