qsynth: update to 0.6.0

and use qmake build-helper

srcpkgs/qsynth/template

@@ -1,8 +1,9 @@
 # Template file for 'qsynth'
 pkgname=qsynth
-version=0.5.6
+version=0.6.0
 revision=1
 build_style=gnu-configure
+build_helper=qmake
 hostmakedepends="pkg-config qt5-tools"
 makedepends="qt5-x11extras-devel jack-devel fluidsynth-devel"
 depends="fluidsynth jack desktop-file-utils hicolor-icon-theme"
@@ -11,20 +12,9 @@ maintainer="Orphaned <orphan@voidlinux.org>"
 license="GPL-2.0-or-later"
 homepage="http://qsynth.sourceforge.io"
 distfiles="${SOURCEFORGE_SITE}/${pkgname}/${pkgname}-${version}.tar.gz"
-checksum=a6eb404778fad87bb37fa1fb4caf1d80f24a324f9c3a22b669df2f8c94849040
+checksum=322a0097b6a74e8ebaf590f76b6acda4489d9ee7c612b97bffbac4e5b1047b9c
 
 if [ "${CROSS_BUILD}" ]; then
 	hostmakedepends+=" qt5-x11extras-devel"
+	configure_args+=" ac_cv_path_ac_cv_qmake=${XBPS_WRAPPERDIR}/qmake"
 fi
-
-post_configure() {
-	# make qmake use the right compiler when cross compiling, flags are recognized
-	vsed -i -e "s/\(export QMAKE = .\+\)/\1 QMAKE_CC=$CC QMAKE_CXX=$CXX QMAKE_LINK=$CXX/" Makefile
-}
-
-pre_install() {
-	# revert previous changes else installation aborts with
-	# “Could not find qmake configuration file default.”
-	vsed -i -e "s/\(export QMAKE = .\+\) QMAKE_CC.\+/\1/" Makefile
-}
-