hedgewars: set nopie=yes

This is pascal mixed with qt4 c++. I see no way to patch the qmake generated
files to use our CXXFLAGS and LDFLAGS.

See #4572

srcpkgs/hedgewars/template

@@ -1,7 +1,7 @@
 # Template file for 'hedgewars'
 pkgname=hedgewars
 version=0.9.22
-revision=1
+revision=2
 wrksrc="${pkgname}-src-${version}"
 build_style=cmake
 configure_args="
@@ -18,6 +18,7 @@ license="GPL-2"
 homepage="http://hedgewars.org"
 distfiles="http://download.gna.org/hedgewars/hedgewars-src-${version}.tar.bz2"
 checksum=b699c8971ff420c3edd6533527ae2e99040f1e79207c9140826945bcf0e62192
+nopie=yes
 
 post_install() {
 	vinstall ${DESTDIR}/usr/share/hedgewars/Data/misc/hedgewars.desktop 644 usr/share/applications