cabal-install: fix build.

srcpkgs/cabal-install/template

@@ -1,7 +1,7 @@
 # Template file for 'cabal-install'
 pkgname=cabal-install
 version=3.6.3.0
-revision=1
+revision=2
 wrksrc=cabal-Cabal-v${version}
 hostmakedepends="ghc curl tar which"
 makedepends="gmp-devel libffi-devel zlib-devel python3"
@@ -15,6 +15,10 @@ checksum=dea086acad6d9fe5fe22d838b95b4e988022e8519f38d41609119ea32bfb7466
 nopie_files="/usr/bin/cabal"
 nocross=yes
 
+post_extract() {
+	cp "${FILESDIR}/linux-9.0.2.json" bootstrap/
+}
+
 post_patch() {
 	case "${XBPS_TARGET_MACHINE}" in
 	i686*)
@@ -24,7 +28,6 @@ post_patch() {
 }
 
 do_build() {
-	cp "${FILESDIR}/linux-9.0.2.json" bootstrap/
 	PREFIX=$PWD bootstrap/bootstrap.py -d bootstrap/linux-9.0.2.json
 }
 do_install() {