liquid-dsp: fix build

srcpkgs/liquid-dsp/template

@@ -3,6 +3,7 @@ pkgname=liquid-dsp
 version=1.3.1
 revision=1
 build_style=gnu-configure
+configure_args="--exec-prefix="
 hostmakedepends="automake"
 makedepends="fftw-devel"
 short_desc="Signal processing library for software-defined radios (SDR)"
@@ -12,10 +13,6 @@ homepage="http://liquidsdr.org/"
 distfiles="https://github.com/jgaeddert/liquid-dsp/archive/v${version}.tar.gz"
 checksum=e3f66ce72a3b5d74eea5ccffb049c62c422c91b0ab92d6dbbef21af3c3bfec73
 
-case "$XBPS_TARGET_MACHINE" in
-	i686) configure_args+=" --exec-prefix=" ;;
-esac
-
 pre_configure() {
 	autoreconf -fi
 }