-*- Mode: Diff -*- Avoid warning: 'inflateValidate' is only available on macOS 10.13 or newer [-Wunguarded-availability-new] --- a/pngrutil.c +++ b/pngrutil.c @@ -419,7 +419,8 @@ } #if ZLIB_VERNUM >= 0x1290 && \ - defined(PNG_SET_OPTION_SUPPORTED) && defined(PNG_IGNORE_ADLER32) + defined(PNG_SET_OPTION_SUPPORTED) && defined(PNG_IGNORE_ADLER32) && \ + !(defined(MAC_OS_X_VERSION_MIN_REQUIRED) && MAC_OS_X_VERSION_MIN_REQUIRED < 101300) if (((png_ptr->options >> PNG_IGNORE_ADLER32) & 3) == PNG_OPTION_ON) /* Turn off validation of the ADLER32 checksum in IDAT chunks */ ret = inflateValidate(&png_ptr->zstream, 0); d' value='20c86bd1059b54915190ce2e3dd39206d293aced'/>