xercesc: enable ICU (#395024)

Avoids "Could not load a local code page transcoder" on macOS

Changed files
+3
pkgs
by-name
xe
xercesc
+3
pkgs/by-name/xe/xercesc/package.nix
···
lib,
fetchurl,
curl,
+
icu,
}:
stdenv.mkDerivation rec {
···
buildInputs = [
curl
+
icu
];
configureFlags = [
# Disable SSE2 extensions on platforms for which they are not enabled by default
"--disable-sse2"
"--enable-netaccessor-curl"
+
"--enable-transcoder-icu"
];
enableParallelBuilding = true;