Release 8.10.5-build2

- Fix runtime error with empty buffers when linking against UCRT (lovell/sharp#2494).
- Fix AVIF decode/encode on CPUs lacking support for the AVX2 instruction set (kleisauke/net-vips#104).

build/aom.mk

@@ -13,7 +13,7 @@ define $(PKG)_BUILD
     cd '$(BUILD_DIR)' && NASM_PATH='$(PREFIX)/$(BUILD)/bin' $(TARGET)-cmake \
         -DENABLE_NASM=ON \
         -DENABLE_TESTS=OFF \
-        -DCONFIG_RUNTIME_CPU_DETECT=0 \
+        $(if $(IS_ARM), -DCONFIG_RUNTIME_CPU_DETECT=0) \
         $(if $(IS_LLVM),, -DCONFIG_PIC=1) \
         $(if $(call seq,i686,$(PROCESSOR)), -DAOM_TARGET_CPU='x86') \
         '$(SOURCE_DIR)'

build/patches/vips-8-fixes.patch

@@ -0,0 +1,51 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Kleis Auke Wolthuizen <[email protected]>
+Date: Tue, 22 Dec 2020 10:32:43 +0100
+Subject: [PATCH 1/2] Ensure memory source is non-null
+
+
+diff --git a/libvips/iofuncs/source.c b/libvips/iofuncs/source.c
+index 1111111..2222222 100644
+--- a/libvips/iofuncs/source.c
++++ b/libvips/iofuncs/source.c
+@@ -318,7 +318,9 @@ vips_source_build( VipsObject *object )
+ 	if( vips_object_argument_isset( object, "blob" ) ) {
+ 		size_t length;
+
+-		source->data = vips_blob_get( source->blob, &length );
++		if( !(source->data = vips_blob_get( source->blob, &length )) )
++			return( -1 );
++
+ 		source->length = VIPS_MIN( length, G_MAXSSIZE );
+ 	}
+
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Kleis Auke Wolthuizen <[email protected]>
+Date: Tue, 22 Dec 2020 11:19:09 +0100
+Subject: [PATCH 2/2] Avoid seeking on bad file descriptors
+
+
+diff --git a/libvips/iofuncs/source.c b/libvips/iofuncs/source.c
+index 1111111..2222222 100644
+--- a/libvips/iofuncs/source.c
++++ b/libvips/iofuncs/source.c
+@@ -348,16 +348,15 @@ vips_source_seek_real( VipsSource *source, gint64 offset, int whence )
+ {
+ 	VipsConnection *connection = VIPS_CONNECTION( source );
+
+-	gint64 new_pos;
+-
+ 	VIPS_DEBUG_MSG( "vips_source_seek_real:\n" );
+
+ 	/* Like _read_real(), we must not set a vips_error. We need to use the
+ 	 * vips__seek() wrapper so we can seek long files on Windows.
+ 	 */
+-	new_pos = vips__seek_no_error( connection->descriptor, offset, whence );
++	if( connection->descriptor != -1 )
++		return( vips__seek_no_error( connection->descriptor, offset, whence ) );
+
+-	return( new_pos );
++	return( -1 );
+ }
+
+ static void