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nixpkgs/pkgs/development/compilers/open-watcom/v2.nix

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Nix

{ stdenv
, lib
, fetchFromGitHub
, unstableGitUpdater
, dosbox
# Docs cause an immense increase in build time, up to 2 additional hours
, withDocs ? false
, ghostscript
, withGUI ? false
}:
stdenv.mkDerivation rec {
pname = "open-watcom-v2";
version = "unstable-2022-04-21";
name = "${pname}-unwrapped-${version}";
src = fetchFromGitHub {
owner = "open-watcom";
repo = "open-watcom-v2";
rev = "bec9e74cdcd048db527ccacc8894493d2ec6e12a";
sha256 = "iJG7+OQYZCRyKO/NXkM3gJjgWRbQk26O+66QaAIJAcc=";
};
postPatch = ''
patchShebangs *.sh
for dateSource in cmnvars.sh bld/wipfc/configure; do
substituteInPlace $dateSource \
--replace '`date ' '`date -ud "@$SOURCE_DATE_EPOCH" '
done
substituteInPlace bld/watcom/h/banner.h \
--replace '__DATE__' "\"$(date -ud "@$SOURCE_DATE_EPOCH" +'%b %d %Y')\"" \
--replace '__TIME__' "\"$(date -ud "@$SOURCE_DATE_EPOCH" +'%T')\""
substituteInPlace build/makeinit \
--replace '%__CYEAR__' '%OWCYEAR'
'' + lib.optionalString (!stdenv.hostPlatform.isDarwin) ''
substituteInPlace build/mif/local.mif \
--replace '-static' ""
'';
nativeBuildInputs = [ dosbox ]
++ lib.optional withDocs ghostscript;
configurePhase = ''
runHook preConfigure
export OWROOT=$(realpath $PWD)
export OWTOOLS=${if stdenv.cc.isClang then "CLANG" else "GCC"}
export OWDOCBUILD=${if withDocs then "1" else "0"}
export OWGHOSTSCRIPTPATH=${lib.optionalString withDocs "${ghostscript}/bin"}
export OWGUINOBUILD=${if withGUI then "0" else "1"}
export OWNOBUILD=
export OWDISTRBUILD=0
export OWDOSBOX=${dosbox}/bin/dosbox
export OWVERBOSE=0
export OWRELROOT=$out
source cmnvars.sh
runHook postConfigure
'';
buildPhase = ''
runHook preBuild
./build.sh build
runHook postBuild
'';
installPhase = ''
runHook preInstall
./build.sh cprel
runHook postInstall
'';
# Stripping breaks many tools
dontStrip = true;
passthru.updateScript = unstableGitUpdater {
url = "https://github.com/open-watcom/open-watcom-v2.git";
};
meta = with lib; {
description = "The v2 fork of the Open Watcom suite of compilers and tools";
longDescription = ''
A fork of Open Watcom: A C/C++/Fortran compiler and assembler suite
targeting a multitude of architectures (x86, IA-32, Alpha AXP, MIPS,
PowerPC) and operating systems (DOS, OS/2, Windows, Linux).
Main differences from Open Watcom 1.9:
- New two-phase build system - Open Watcom can be built by the host's
native C/C++ compiler or by itself
- Code generator properly initializes pointers by DLL symbol addresses
- DOS tools now support long file names (LFN) if appropriate LFN driver
is loaded by DOS
- Open Watcom is ported to 64-bit hosts (Win64, Linux x64)
- Librarian supports x64 CPU object modules and libraries
- RDOS 32-bit C run-time compact memory model libraries are fixed
- Resource compiler and Resource editors support Win64 executables
- Open Watcom text editor is now self-contained, it can be used as
standalone tool without any requirements for any additional files or
configuration
- Broken C++ compiler pre-compiled header template support is fixed
- Many C++ compiler crashes are fixed
- Debugger has no length limit for any used environment variable
'' + lib.optionalString (!withDocs) ''
The documentation has been excluded from this build for build time reasons. It can be found here:
https://github.com/open-watcom/open-watcom-v2/wiki/Open-Watcom-Documentation
'';
homepage = "https://open-watcom.github.io";
license = licenses.watcom;
platforms = [ "x86_64-linux" "i686-linux" "x86_64-darwin" "x86_64-windows" "i686-windows" ];
maintainers = with maintainers; [ OPNA2608 ];
};
}