main/qt5-qtbase: disable reduce-relocations

gcc5 and PIE does not work well with reduce relocations
https://bugs.archlinux.org/task/45283

main/qt5-qtbase/APKBUILD

@@ -5,7 +5,7 @@ _ver=${pkgver/_/-}
 _ver=${_ver/beta0/beta}
 _ver=${_ver/rc0/rc}
 _V=${_ver/rc/RC}
-pkgrel=0
+pkgrel=1
 pkgdesc="Qt5 - QtBase components"
 url="http://qt-project.org/"
 arch="all"
@@ -79,11 +79,6 @@ build() {
 
 	cd "$_builddir"
 
-	case "$CTARGET" in
-	arm*) _arch="";;
-	*) _arch="-reduce-relocations";;
-	esac
-
 	./configure -confirm-license -opensource \
 		-archdatadir "$_qt5_prefix" \
 		-bindir  "$_qt5_prefix"/bin \
@@ -120,7 +115,7 @@ build() {
 		-system-xcb \
 		-system-zlib \
 		-translationdir "$_qt5_datadir"/translations \
-		$_arch \
+		-no-reduce-relocations \
 		|| return 1
 	make || return 1
 }