125 lines
3 KiB
Nix
125 lines
3 KiB
Nix
{ lib, stdenvNoCC, fetchurl, qemu, expect, writeScript, writeScriptBin, ncurses, bash, coreutils }:
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let
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# We execute all OpenWatcom binaries in qemu-user, because otherwise
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# some binaries (most notably the installer itself and wlib) fail to
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# use the stat() systemcall. The failure mode is that it returns
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# EOVERFLOW for completely legitimate requests. This seems like an
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# incompatibility of new Linux kernels to run this ancient binary.
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wrapLegacyBinary = writeScript "wrapLegacyBinary" ''
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#!${bash}/bin/bash
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set -eu
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if [ $# -ne 2 ]; then
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echo "Usage: $0 unwrapped-binary wrapped-binary"
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exit 1
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fi
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IN="$(${coreutils}/bin/realpath $1)"
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OUT="$2"
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ARGV0="$(basename $2)"
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cat > "$OUT" <<EOF
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#!${bash}/bin/bash
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TERMINFO=${ncurses}/share/terminfo TERM=vt100 exec ${qemu}/bin/qemu-i386 -0 $ARGV0 $IN "\$@"
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EOF
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chmod +x "$OUT"
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'';
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wrapInPlace = writeScriptBin "wrapInPlace" ''
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#!${bash}/bin/bash
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set -eu
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if [ $# -ne 1 ]; then
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echo "Usage: $0 unwrapped-binary"
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exit 1
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fi
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TARGET="$1"
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mv "$TARGET" "$TARGET-unwrapped"
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chmod +x "$TARGET-unwrapped"
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exec ${wrapLegacyBinary} "$TARGET-unwrapped" "$TARGET"
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'';
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# Do a scripted installation of OpenWatcom with its original installer.
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#
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# If maintaining this expect script turns out to be too much of a
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# hassle, we can switch to just using `unzip' on the installer and
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# the correct file permissions manually.
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performInstall = writeScriptBin "performInstall" ''
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#!${expect}/bin/expect -f
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spawn [lindex $argv 0]
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# Wait for button saying "I agree" with escape sequences.
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expect "gree"
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# Navigate to "I Agree!" and hit enter.
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send "\t\t\n"
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expect "Install Open Watcom"
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# Where do we want to install to.
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send "$env(out)\n"
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expect "will be installed"
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# Select Full Installation, Next
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send "fn"
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expect "Setup will now copy"
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# Next
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send "n"
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expect "completed successfully"
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send "\n"
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'';
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in
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stdenvNoCC.mkDerivation rec {
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pname = "${passthru.prettyName}-unwrapped";
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version = "1.9";
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src = fetchurl {
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url = "http://ftp.openwatcom.org/install/open-watcom-c-linux-${version}";
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sha256 = "1wzkvc6ija0cjj5mcyjng5b7hnnc5axidz030c0jh05pgvi4nj7p";
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};
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nativeBuildInputs = [ wrapInPlace performInstall ];
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dontUnpack = true;
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dontConfigure = true;
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buildPhase = ''
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cp ${src} install-bin-unwrapped
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wrapInPlace install-bin-unwrapped
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'';
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installPhase = ''
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performInstall ./install-bin-unwrapped
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for e in $(find $out/binl -type f -executable); do
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echo "Wrapping $e"
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wrapInPlace "$e"
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done
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'';
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passthru.prettyName = "open-watcom-bin";
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meta = with lib; {
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description = "A project to maintain and enhance the Watcom C, C++, and Fortran cross compilers and tools";
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sourceProvenance = with sourceTypes; [ binaryNativeCode ];
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homepage = "http://www.openwatcom.org/";
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license = licenses.watcom;
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platforms = [ "x86_64-linux" "i686-linux" ];
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maintainers = [ maintainers.blitz ];
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};
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}
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