From d0a22d8de37e0bdbd85d606080671c66ddb8577b Mon Sep 17 00:00:00 2001
From: weidong <weidong@uniontech.com>
Date: Thu, 10 Sep 2020 17:53:17 +0800
Subject: [PATCH] fix error

---
 Source/LibPNG/configure | 4 ++++
 Source/LibPNG/pngpriv.h | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/Source/LibPNG/configure b/Source/LibPNG/configure
index 472b35e2..76e8fda6 100644
--- a/Source/LibPNG/configure
+++ b/Source/LibPNG/configure
@@ -13575,20 +13575,24 @@ if test "${enable_arm_neon+set}" = set; then :
       no|off)
          # disable the default enabling on __ARM_NEON__ systems:
 
+$as_echo "#define PNG_USE_ARM_NEON /**/" >>confdefs.h
 $as_echo "#define PNG_ARM_NEON_OPT 0" >>confdefs.h
 
          # Prevent inclusion of the assembler files below:
          enable_arm_neon=no;;
       check)
 
+$as_echo "#define PNG_USE_ARM_NEON /**/" >>confdefs.h
 $as_echo "#define PNG_ARM_NEON_CHECK_SUPPORTED /**/" >>confdefs.h
 ;;
       api)
 
+$as_echo "#define PNG_USE_ARM_NEON /**/" >>confdefs.h
 $as_echo "#define PNG_ARM_NEON_API_SUPPORTED /**/" >>confdefs.h
 ;;
       yes|on)
 
+$as_echo "#define PNG_USE_ARM_NEON /**/" >>confdefs.h
 $as_echo "#define PNG_ARM_NEON_OPT 2" >>confdefs.h
 
          { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: --enable-arm-neon: please specify 'check' or 'api', if
diff --git a/Source/LibPNG/pngpriv.h b/Source/LibPNG/pngpriv.h
index 81f87616..abf210ad 100644
--- a/Source/LibPNG/pngpriv.h
+++ b/Source/LibPNG/pngpriv.h
@@ -127,7 +127,7 @@
     * associated assembler code, pass --enable-arm-neon=no to configure
     * or put -DPNG_ARM_NEON_OPT=0 in CPPFLAGS.
     */
-#  if (defined(__ARM_NEON__) || defined(__ARM_NEON)) && \
+#  if defined(PNG_ARM_NEON) && (defined(__ARM_NEON__) || defined(__ARM_NEON)) && \
    defined(PNG_ALIGNED_MEMORY_SUPPORTED)
 #     define PNG_ARM_NEON_OPT 2
 #  else
-- 
2.20.1