user/libjpeg-turbo: set -DFLOATTEST=64bit for ppc

user/libjpeg-turbo/APKBUILD

@@ -28,6 +28,13 @@ build() {
 	if [ "$CBUILD" != "$CHOST" ]; then
 		CMAKE_CROSSOPTS="-DCMAKE_SYSTEM_NAME=Linux -DCMAKE_HOST_SYSTEM_NAME=Linux"
 	fi
+
+	# https://github.com/libjpeg-turbo/libjpeg-turbo/issues/344
+	# https://github.com/libjpeg-turbo/libjpeg-turbo/issues/428
+	case "$CARCH" in
+	ppc) _floattest=64bit;;
+	esac
+
 	cmake \
 		-DCMAKE_INSTALL_PREFIX=/usr \
 		-DCMAKE_INSTALL_DEFAULT_LIBDIR=lib \
@@ -36,6 +43,7 @@ build() {
 		-DCMAKE_C_FLAGS="$CFLAGS" \
 		-DENABLE_STATIC=OFF \
 		-DWITH_JPEG8=ON \
+		${_floattest:+-DFLOATTEST="$_floattest"} \
 		${CMAKE_CROSSOPTS} .
 	make
 }