testing/crystal: minor changes in abuild

testing/crystal/APKBUILD

 # Contributor: Jakub Jirutka <jakub@jirutka.cz>
 # Maintainer: Jakub Jirutka <jakub@jirutka.cz>
-# TODO: Fix SSL bindings for LibreSSL (it's probably broken).
+# TODO: Fix SSL bindings for LibreSSL (https://github.com/crystal-lang/crystal/issues/4676)
 pkgname=crystal
 pkgver=0.24.2
 pkgrel=1
@@ -36,7 +36,7 @@ export CRYSTAL_CACHE_DIR="$srcdir/.cache"
 # we can also use prebuilt binary from upstream if needed.
 snapshot() {
 	local binary="$builddir/.build/crystal"
-	local tarname="$pkgname-$pkgver-$CHOST"
+	local tarname="$pkgname-$pkgver-$CTARGET"
 
 	if [ ! -f "$binary" ] || ! file "$binary" | grep -qw 'statically linked'; then
 		msg "Building statically linked crystal..."
@@ -64,9 +64,7 @@ prepare() {
 		release = 1
 		threads = ${JOBS:-2}
 		verbose = 1
-		EXTRA_FLAGS = --target $CTARGET ${BUILD_STATIC:+"--link-flags=-no-pie"}
-		CFLAGS = $CFLAGS
-		CXXFLAGS = $CXXFLAGS
+		EXTRA_FLAGS = --verbose --target $CTARGET ${BUILD_STATIC:+"--link-flags=-no-pie"}
 		LLVM_CONFIG = /usr/lib/llvm$_llvmver/bin/llvm-config
 	EOF
 }
@@ -76,7 +74,7 @@ build() {
 
 	make crystal \
 		CRYSTAL_CONFIG_PATH="lib:/usr/lib/crystal" \
-		PATH="$srcdir/$pkgname-$_bootver-$CHOST/bin:$PATH" \
+		PATH="$srcdir/$pkgname-$_bootver-$CBUILD/bin:$PATH" \
 		static=${BUILD_STATIC:-}
 }