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-*- Mode: Diff -*-
Avoid warning: 'inflateValidate' is only available on macOS 10.13 or newer [-Wunguarded-availability-new]
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -422,7 +422,8 @@
}
#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);
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