testing/avarice: fix build with gcc12

testing/avarice/APKBUILD

@@ -14,6 +14,8 @@ source="https://downloads.sourceforge.net/project/avarice/avarice/avarice-$pkgve
 	"
 
 build() {
+	# gcc12 defaults to 17 which fails due to throw()
+	export CXXFLAGS="$CXXFLAGS -std=c++14"
 	./configure \
 		--build=$CBUILD \
 		--host=$CHOST \
@@ -29,5 +31,7 @@ package() {
 	make DESTDIR="$pkgdir" install
 }
 
-sha512sums="e0b23bd02bfa7d4dc05027f0f59ec7da868d8d0c0cd4f66595f6aaa5c335fa4eb64fc47399e51c0ed5112803ee99a3f041812bf4072dc096cc933cd17f9348a0  avarice-2.14.tar.bz2
-8e9faf7eab5807f3b100ba29e7aab857f91947981a25dccc3096c9462d777be9fb19cf410e8634884b3ce9299fe410e24d1cd107c4bdbf0a537b9f9322e7c627  drop_keyword_unused.patch"
+sha512sums="
+e0b23bd02bfa7d4dc05027f0f59ec7da868d8d0c0cd4f66595f6aaa5c335fa4eb64fc47399e51c0ed5112803ee99a3f041812bf4072dc096cc933cd17f9348a0  avarice-2.14.tar.bz2
+8e9faf7eab5807f3b100ba29e7aab857f91947981a25dccc3096c9462d777be9fb19cf410e8634884b3ce9299fe410e24d1cd107c4bdbf0a537b9f9322e7c627  drop_keyword_unused.patch
+"