3ed996727f
Prior to the recent merge, the full paths were specified here, so gambit would get the full paths and not need to propagate the compiler inputs.
113 lines
4.5 KiB
Nix
113 lines
4.5 KiB
Nix
{ gccStdenv, lib, git, openssl, autoconf, pkgs, makeStaticLibraries, gcc, coreutils, gnused, gnugrep,
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src, version, git-version,
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gambit-support, optimizationSetting ? "-O1", gambit-params ? pkgs.gambit-support.stable-params }:
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# Note that according to a benchmark run by Marc Feeley on May 2018,
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# clang is 10x (with default settings) to 15% (with -O2) slower than GCC at compiling
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# Gambit output, producing code that is 3x slower. IIRC the benchmarks from Gambit@30,
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# the numbers were still heavily in favor of GCC in October 2019.
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# Thus we use GCC over clang, even on macOS.
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#
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# Also note that I (fare) just ran benchmarks from https://github.com/ecraven/r7rs-benchmarks
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# with Gambit 4.9.3 with -O1 vs -O2 vs -Os on Feb 2020. Which wins depends on the benchmark.
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# The fight is unclear between -O1 and -O2, where -O1 wins more often, by up to 17%,
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# but sometimes -O2 wins, once by up to 43%, so that overall -O2 is 5% faster.
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# However, -Os seems more consistent in winning slightly against both -O1 and -O2,
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# and is overall 15% faster than -O2. As for compile times, -O1 is fastest,
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# -Os is about 29%-33% slower than -O1, while -O2 is about 40%-50% slower than -O1.
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#
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# Overall, -Os seems like the best choice, but I care more about compile-time,
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# so I stick with -O1 (in the defaults above), which is also the default for Gambit.
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gccStdenv.mkDerivation rec {
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pname = "gambit";
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inherit src version git-version;
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bootstrap = gambit-support.gambit-bootstrap;
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nativeBuildInputs = [ git autoconf ];
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# TODO: if/when we can get all the library packages we depend on to have static versions,
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# we could use something like (makeStaticLibraries openssl) to enable creation
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# of statically linked binaries by gsc.
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buildInputs = [ openssl ];
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# TODO: patch gambit's source so it has the full path to sed, grep, fgrep? Is there more?
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# Or wrap relevant programs to add a suitable PATH ?
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#runtimeDeps = [ gnused gnugrep ];
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configureFlags = [
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"--enable-targets=${gambit-params.targets}"
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"--enable-single-host"
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"--enable-c-opt=${optimizationSetting}"
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"--enable-gcc-opts"
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"--enable-shared"
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"--enable-absolute-shared-libs" # Yes, NixOS will want an absolute path, and fix it.
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"--enable-openssl"
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"--enable-default-runtime-options=${gambit-params.defaultRuntimeOptions}"
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# "--enable-debug" # Nope: enables plenty of good stuff, but also the costly console.log
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# "--enable-multiple-versions" # Nope, NixOS already does version multiplexing
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# "--enable-guide"
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# "--enable-track-scheme"
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# "--enable-high-res-timing"
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# "--enable-max-processors=4"
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# "--enable-multiple-vms"
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# "--enable-dynamic-tls"
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# "--enable-multiple-threaded-vms" # when SMP branch is merged in
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# "--enable-thread-system=posix" # default when --enable-multiple-vms is on.
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# "--enable-profile"
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# "--enable-coverage"
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# "--enable-inline-jumps"
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# "--enable-char-size=1" # default is 4
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] ++
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# due not enable poll on darwin due to https://github.com/gambit/gambit/issues/498
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lib.optional (!gccStdenv.isDarwin) "--enable-poll";
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configurePhase = ''
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export CC=${gccStdenv.cc}/bin/${gccStdenv.cc.targetPrefix}gcc \
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CXX=${gccStdenv.cc}/bin/${gccStdenv.cc.targetPrefix}g++ \
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CPP=${gccStdenv.cc}/bin/${gccStdenv.cc.targetPrefix}cpp \
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CXXCPP=${gccStdenv.cc}/bin/${gccStdenv.cc.targetPrefix}cpp \
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LD=${gccStdenv.cc}/bin/${gccStdenv.cc.targetPrefix}ld \
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XMKMF=${coreutils}/bin/false
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unset CFLAGS LDFLAGS LIBS CPPFLAGS CXXFLAGS
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${gambit-params.fix-stamp git-version}
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./configure --prefix=$out/gambit ${builtins.concatStringsSep " " configureFlags}
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# OS-specific paths are hardcoded in ./configure
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substituteInPlace config.status \
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--replace "/usr/local/opt/openssl@1.1" "${openssl.out}" \
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--replace "/usr/local/opt/openssl" "${openssl.out}"
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./config.status
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'';
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buildPhase = ''
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# Make bootstrap compiler, from release bootstrap
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mkdir -p boot
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cp -rp ${bootstrap}/gambit/. boot/.
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chmod -R u+w boot
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cd boot
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cp ../gsc/makefile.in ../gsc/*.scm gsc/
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./configure
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for i in lib gsi gsc ; do (cd $i ; make -j$NIX_BUILD_CORES) ; done
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cd ..
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cp boot/gsc/gsc gsc-boot
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# Now use the bootstrap compiler to build the real thing!
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make -j$NIX_BUILD_CORES from-scratch
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${lib.optionalString gambit-params.modules "make -j$NIX_BUILD_CORES modules"}
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'';
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postInstall = ''
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mkdir $out/bin
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cd $out/bin
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ln -s ../gambit/bin/* .
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'';
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doCheck = true;
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meta = gambit-support.meta;
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}
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