# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4

PortSystem                                       1.0
PortGroup           select                       1.0
PortGroup           compiler_blacklist_versions  1.0
PortGroup           active_variants              1.1
PortGroup           conflicts_build              1.0

epoch               2

name                gcc11

version             11.4.0
revision            1

if {${subport} eq "gcc11"} {
    platforms           {darwin >= 10 < 22}
}

categories          lang
maintainers         nomaintainer
# an exception in the license allows dependents to not be GPL
license             {GPL-3+ Permissive}

description         The GNU compiler collection
long_description    The GNU compiler collection, including front ends for \
                    C, C++, Objective-C, Objective-C++ and Fortran.

homepage            https://gcc.gnu.org/

# Primary releases
master_sites        https://ftpmirror.gnu.org/gcc/gcc-${version}/ \
                    https://mirror.its.dal.ca/gnu/gcc/gcc-${version}/ \
                    https://mirrors.kernel.org/gnu/gcc/gcc-${version}/ \
                    https://www.mirrorservice.org/sites/ftp.gnu.org/gnu/gcc/gcc-${version}/ \
                    https://ftp-stud.hs-esslingen.de/pub/Mirrors/ftp.gnu.org/gcc/gcc-${version}/ \
                    https://mirror.yongbok.net/gnu/gcc/gcc-${version}/ \
                    http://mirror.koddos.net/gcc/releases/gcc-${version}/ \
                    ftp://ftp.gwdg.de/pub/linux/gcc/releases/gcc-${version}/ \
                    ftp://gcc.ftp.nluug.nl/mirror/languages/gcc/releases/gcc-${version}/ \
                    ftp://gcc.gnu.org/pub/gcc/releases/gcc-${version}/ \
                    gnu:gcc/gcc-${version}

distname            gcc-${version}
use_xz              yes

checksums           rmd160  a43fd21a3887af24daa550c4b52fb634e33b633c \
                    sha256  3f2db222b007e8a4a23cd5ba56726ef08e8b1f1eb2055ee72c1402cea73a8dd9 \
                    size    79837032

set libgccname      lib${name}
subport             ${libgccname} { revision [ expr ${revision} + 0 ] }

set libcxxname      ${name}-libcxx

if { ${os.platform} eq "darwin" } {
    # Patch generated from https://github.com/iains/gcc-11-branch
    # git diff --no-prefix releases/gcc-11.3.0 gcc-11.3-darwin-r2
    patchfiles-append  patch-darwin-gcc-${version}.diff
}

if { ${os.platform} eq "darwin" && ${os.major} >= 17 } {
    # On macOS 10.13 and later, compilation is extremely slow if SIP is
    # disabled; e.g. from ~30m with SIP enabled, to ~6 hours if disabled.
    #
    # This is caused by gcc's build system setting DYLD_LIBRARY_PATH to ensure
    # that the toolchain picks up newly built library versions, which seems to
    # trigger a pathologically slow path in dyld's library resolution.
    #
    # Since dyld ignores DYLD_LIBRARY_PATH when SIP is enabled, the issue is
    # avoided entirely, but at the cost of potentially falling back to incorrect
    # system library paths. The correct, SIP-compatible solution would be gcc
    # adopting @rpath.
    #
    # However, given that SIP is enabled by default in macOS, including on our
    # build bots, we already have to assume that ignoring DYLD_LIBRARY_PATH will
    # still produce a valid toolchain.
    #
    # Given that, we go ahead and disable DYLD_LIBRARY_PATH explicitly, avoiding
    # otherwise unworkably long build-times for hosts with SIP disabled.
    #
    # See also: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84257
    patchfiles-append patch-disable-dyld_library_path.diff
}

# Since GCC 7.4.0, during configure, it detects features supported by target-as.
# On the other hand, MacPorts cctools contain a proxy for 'as' that runs system
# 'as' or one of the supported MacPorts clang's 'as' if it is installed. Here,
# we may encounter a misconfiguration when GCC builds on a system with some
# MacPorts clang, and 'as' is using it. However, on a clean system, it uses
# system 'as' if no MacPorts clang is installed, which may behave differently.
# This can make GCC broken until MacPorts clang is installed. To avoid a stealth
# dependency on the used clang, I enforce building with system 'as'.
# See:
#  - https://trac.macports.org/ticket/68683
#  - https://github.com/gcc-mirror/gcc/commit/b410cf1dc056aab195c5408871ffca932df8a78a
patchfiles-append   patch-gcc10-disable-macports-cctools-as-changes.diff

configure.env-append \
                    DISABLE_MACPORTS_AS_CLANG_SEARCH=1 \
                    DISABLE_XCODE_AS_CLANG_SEARCH=1

build.env-append    DISABLE_MACPORTS_AS_CLANG_SEARCH=1 \
                    DISABLE_XCODE_AS_CLANG_SEARCH=1

depends_build-append \
                    port:texinfo
depends_lib-append  port:cctools \
                    port:gmp \
                    path:lib/pkgconfig/isl.pc:isl \
                    port:ld64 \
                    port:libiconv \
                    port:libmpc \
                    port:mpfr \
                    port:zlib \
                    port:zstd
depends_run-append  port:gcc_select \
                    port:libgcc11

depends_skip_archcheck-append gcc_select ld64 cctools
license_noconflict  gmp mpfr ppl libmpc zlib

set major           [lindex [split ${version} .-] 0]

platform darwin {
    configure.pre_args-append --build=${build_arch}-apple-darwin${os.major}
}

set gcc_configure_langs {c c++ objc obj-c++ lto fortran}
if {${subport} eq ${name} && ${build_arch} ne "i386"} {
    # jit compiler is not building on i386 systems
    #   https://trac.macports.org/ticket/61130
    lappend gcc_configure_langs jit
}

set gcc_as ${prefix}/bin/as
set gcc_ld ${prefix}/bin/ld
set gcc_ar ${prefix}/bin/ar
set gcc_nm ${prefix}/bin/nm

set mp_extra_rpath  ${prefix}/lib/libgcc

configure.dir       ${workpath}/build
configure.cmd       ${worksrcpath}/configure
configure.args      --enable-languages=[join ${gcc_configure_langs} ","] \
                    --libdir=${prefix}/lib/${name} \
                    --includedir=${prefix}/include/${name} \
                    --infodir=${prefix}/share/info \
                    --mandir=${prefix}/share/man \
                    --datarootdir=${prefix}/share/gcc-${major} \
                    --with-local-prefix=${prefix} \
                    --with-system-zlib \
                    --disable-nls \
                    --program-suffix=-mp-${major} \
                    --with-gxx-include-dir=${prefix}/include/${name}/c++/ \
                    --with-gmp=${prefix} \
                    --with-mpfr=${prefix} \
                    --with-mpc=${prefix} \
                    --with-isl=${prefix} \
                    --with-zstd=${prefix} \
                    --enable-checking=release \
                    --disable-multilib \
                    --enable-lto \
                    --enable-libstdcxx-time \
                    --with-build-config=bootstrap-debug \
                    --with-as=${prefix}/bin/as \
                    --with-ld=${prefix}/bin/ld \
                    --with-ar=${prefix}/bin/ar \
                    --with-bugurl=https://trac.macports.org/newticket \
                    --enable-host-shared \
                    --with-darwin-extra-rpath=${mp_extra_rpath}

# see https://lists.macports.org/pipermail/macports-dev/2017-August/036209.html
# --disable-tls does not limit functionality
# it only determines how std::call_once works
configure.args-append \
                    --disable-tls

# Disable ccache
configure.ccache    no

if { ${subport} ne ${libcxxname} && ${os.platform} eq "darwin" } {
    # gcc has build issues on macOS 11.3 with the use of Xcode 12.5 clang via cctools for ld
    #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100340
    #   https://trac.macports.org/ticket/62775
    # Bootstrap comparison fails on 10.6, so disable for that case too
    #   https://trac.macports.org/ticket/65149
    # ... also now fails mysteriously on 10.7
    # https://github.com/macports/macports-ports/commit/21bcf9d4ae1feade8f4c53c7608febf8d249cea8#commitcomment-78674560
    if { ([vercmp ${xcodeversion} >= 12.5] && [vercmp ${xcodeversion} < 13]) || \
         ([vercmp ${xcodecltversion} >= 12.5] && [vercmp ${xcodecltversion} < 13]) || \
         (${os.major} <= 11 && ${subport} ne ${libgccname}) } \
    {
        # Skip bootstrap comparison entirely
        post-patch {
            reinplace {s|^do-compare =|do-compare = /usr/bin/true|g} \
                ${worksrcpath}/Makefile.in \
                ${worksrcpath}/config/bootstrap-debug.mk \
                ${worksrcpath}/config/bootstrap-debug-lean.mk \
                ${worksrcpath}/config/bootstrap-debug-lib.mk
        }
    }
}

configure.args-append \
                    --with-as=${gcc_as} \
                    --with-ld=${gcc_ld} \
                    --with-ar=${gcc_ar} \

configure.env-append \
                    AR_FOR_TARGET=${gcc_ar} \
                    AS_FOR_TARGET=${gcc_as} \
                    LD_FOR_TARGET=${gcc_ld} \
                    NM_FOR_TARGET=${gcc_nm} \
                    OBJDUMP_FOR_TARGET=${prefix}/bin/objdump \
                    RANLIB_FOR_TARGET=${prefix}/bin/ranlib \
                    STRIP_FOR_TARGET=${prefix}/bin/strip \
                    OTOOL=${prefix}/bin/otool \
                    OTOOL64=${prefix}/bin/otool

if {${os.platform} eq "darwin" && ${os.major} >= 22} {
    if { [vercmp ${xcodeversion} >= 15.0] || [vercmp ${xcodecltversion} >= 15.0] } {
        # On macOS13 and newer ensure the 'legacy' linker is used as GCC currently has problems
        # with the new default linker in Xcode 15. See e.g.
        # https://developer.apple.com/documentation/xcode-release-notes/xcode-15-release-notes#Linking
        # https://discussions.apple.com/thread/255137447
        # https://developer.apple.com/forums/thread/737707
        # https://github.com/Homebrew/homebrew-core/issues/145991
        configure.args-replace --with-ld=${prefix}/bin/ld --with-ld=${prefix}/bin/ld-classic
        # Ensure ld64 is installed with the correct variant need for ld-classic
        require_active_variants ld64 ld64_xcode
    }
}

pre-configure {

    # Set package info
    configure.args-append --with-pkgversion="MacPorts ${name} ${version}_${revision}${portvariants}"

    if {${configure.sdkroot} ne ""} {
        # We should be using --with-build-sysroot here.  Using --with-sysroot
        # changes the behavior of the installed gcc to look in that sysroot
        # by default instead of /.  Using --with-build-sysroot is supposed
        # to be used during the build but not impact the installed product.
        # Unfortunately, the build fails because the value doesn't get
        # plumbed everywhere it is supposed to.
        #
        # https://trac.macports.org/ticket/53726
        # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79885

        # if the sdkroot is one of the current, rapidly changing SDKS, use the generic one
        configure.args-append --with-sysroot="[regsub {MacOSX1[1-9]\.[0-9]+\.sdk} ${configure.sdkroot} {MacOSX.sdk}]"
    }

}

set libcxx_incpath ${prefix}/libexec/${name}/libc++/include/c++/v1

subport ${libcxxname} {
    PortGroup compilers     1.0
    compilers.choose        cxx
    compilers.setup         -gcc -fortran -clangdevel -clang34 -clang35 -clang36 \
                            -clang37 -clang50 -clang60 -clang70 -clang80 -clang90
    if { ![clang_variant_isset] } {
        if { ${os.platform} eq "darwin" && ${os.major} < 11 } {
            default_variants-append +clang11
        } else {
            default_variants-append +clang14
        }
    }
    revision                [ expr ${revision} + 0 ]
    description             libc++ header implementation to be used by ${name}
    long_description        {*}${description}
    homepage                https://llvm.org/
    license                 NCSA
    depends_build
    depends_extract
    depends_run
    depends_lib
    distfiles
    patchfiles
    use_configure           no
    supported_archs         noarch
    platforms               any
    # Find clang/llvm version to use from active variant
    proc getClangVersion {} {
        if { [regexp {clang(.*)} [clang_variant_name] -> clang_v] } {
            return ${clang_v}
        }
        return ""
    }
    set mp_clang_ver [getClangVersion]
    build {
        # Copy headers from clang-N during build
        file mkdir ${worksrcpath}/headers
        file copy ${prefix}/libexec/llvm-${mp_clang_ver}/include/c++/v1 ${worksrcpath}/headers/
    }
    destroot {
        set base_dir [file dirname ${libcxx_incpath}]
        file mkdir ${destroot}${base_dir}
        file copy ${worksrcpath}/headers/v1 ${destroot}${base_dir}
    }
}

if { ${subport} ne ${libcxxname} } {

    variant stdlib_flag description {Enable stdlib command line flag to select c++ runtime} {
        # Enables support for specifying the c++ runtime via `-stdlib=` in a similar
        # way to clang. For more details see the later comments in
        #   https://www.mail-archive.com/gcc-patches@gcc.gnu.org/msg257385.html
        # Note : This 'bakes' the libc++ include directory into gcc,
        # which is then used as the default search location when `-stdlib=libc++`
        # is given. Therefore to have consistency across various OS versions, and to enable
        # modern c++ standards, use a recent macports clang port to provide this.
        if {${subport} eq ${name}} {
            depends_run-append port:${libcxxname}
        }
        configure.args-append --with-gxx-libcxx-include-dir="${libcxx_incpath}"
    }

    # libcxx is unavailable on PPC
    if {${build_arch} ni [list ppc ppc64]} {
        default_variants-append +stdlib_flag
    }

}

# https://trac.macports.org/ticket/29067
# https://trac.macports.org/ticket/29104
# https://trac.macports.org/ticket/47996
# https://trac.macports.org/ticket/58493
compiler.blacklist-append {clang < 800} gcc-4.0 *gcc-4.2 {llvm-gcc-4.2 < 2336.1} {macports-clang-3.[4-7]}

# https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/105513/steps/install-port/logs/stdio
# c++/v1/functional:1408:2: error: no member named 'fancy_abort' in namespace 'std::__1'; did you mean simply 'fancy_abort'?
compiler.blacklist-append {clang < 1000}

# "-stdlib" would be passed on to the bootstrap compiler if present
configure.cxx_stdlib

build.dir           ${configure.dir}
build.target        bootstrap-lean
use_parallel_build  yes

destroot.target     install install-info-host

# gcc cannot build if libunwind-headers is active
conflicts_build-append libunwind-headers binutils

# List of dylibs to be installed
# Note that we really don't want to include libgcc_ext.10.[45].dylib here, but install_name_tool
# doesn't know how to change the id of stubs, and it's easier than recreating them for each
# gcc port.
set all_dylibs {libgcc_ext.10.4.dylib libgcc_ext.10.5.dylib libgcc_s.1.dylib libgcc_s.1.1.dylib \
                libgcc_s.2.dylib libgfortran.5.dylib libquadmath.0.dylib libstdc++.6.dylib \
                libobjc-gnu.4.dylib libgomp.1.dylib libitm.1.dylib libssp.0.dylib libasan.6.dylib \
                libubsan.1.dylib libatomic.1.dylib libgcc_ehs.1.1.dylib}
set install_dylibs {libasan.6.dylib}

if {${subport} eq ${libgccname}} {

    # Activate hack for new libgcc
    # https://trac.macports.org/wiki/PortfileRecipes#deactivatehack
    pre-activate {
        if {![catch {set installed [lindex [registry_active libgcc8] 0]}]} {
            # Extract the epoch of the installed libgcc8
            set _epoch [lindex $installed 5]
            # If < 5 need to deactivate
            if {[vercmp $_epoch < 5]} {
                registry_deactivate_composite libgcc8 "" [list ports_nodepcheck 1]
            }
        }
        if {![catch {set installed [lindex [registry_active libgcc10] 0]}]} {
            # Extract the epoch of the installed libgcc10
            set _epoch [lindex $installed 5]
            # If < 6 need to deactivate
            if {[vercmp $_epoch < 6]} {
                registry_deactivate_composite libgcc10 "" [list ports_nodepcheck 1]
            }
        }
        if {![catch {set installed [lindex [registry_active libgcc-devel] 0]}]} {
            # Extract the epoch of the installed libgcc-devel
            set _epoch [lindex $installed 5]
            # If < 5 need to deactivate
            if {[vercmp $_epoch < 5]} {
                registry_deactivate_composite libgcc-devel "" [list ports_nodepcheck 1]
            }
        }
    }

    # http://trac.macports.org/ticket/35770
    # http://trac.macports.org/ticket/38814
    # While there can be multiple versions of these runtimes in a single
    # process, it is not possible to pass objects between different versions,
    # so we simplify this by having the libgcc port provide the newest version
    # of these runtimes for all versions of gcc to use.
    #
    # If there is a binary incompatible change to the runtime in a future
    # version of gcc, then the latest version of gcc to provide a given ABI
    # version should continue to provide a subport for that and older gcc
    # versions.

    depends_run port:libgcc12
    depends_build-append {*}${depends_lib}
    depends_lib

    # On arm or Darwin 11 and older nothing is installed so skip build entirely
    if { ${os.arch} eq "arm" || ${os.major} < 12 } {

        platforms     {darwin < 22}

        fetch.type    none
        build         { }
        use_configure no
        patchfiles
        destroot {
            set doc_dir ${destroot}${prefix}/share/doc/${subport}
            xinstall -m 755 -d ${doc_dir}
            system "echo ${subport} provides no runtime > ${doc_dir}/README"
        }

    } else {

        configure.args-replace \
            --libdir=${prefix}/lib/${name} \
            --libdir=${prefix}/lib/libgcc

        # see https://trac.macports.org/ticket/54766
        configure.args-replace \
            --includedir=${prefix}/include/${name} \
            --includedir=${prefix}/include/gcc

        configure.args-replace \
            --with-gxx-include-dir=${prefix}/include/${name}/c++/ \
            --with-gxx-include-dir=${prefix}/include/gcc/c++/

        post-destroot {

            # Temporary working dir for dylibs
            file mkdir ${destroot}${prefix}/lib/libgcc.merged

            # loop over libs to install
            foreach dylib ${install_dylibs} {

                # Different OS versions (e.g. Leopard) or architectures (e.g. PPC) don't produce all the dylibs
                # https://trac.macports.org/ticket/40098
                # https://trac.macports.org/ticket/40100
                if {![file exists ${destroot}${prefix}/lib/libgcc/${dylib}]} {
                    continue
                }

                # Move dylib to temp area
                move ${destroot}${prefix}/lib/libgcc/${dylib} ${destroot}${prefix}/lib/libgcc.merged

                # Universal support
                if {[variant_exists universal] && [variant_isset universal]} {
                    foreach archdir [glob ${destroot}${prefix}/lib/libgcc/*/] {
                        set archdir_nodestroot [string map "${destroot}/ /" ${archdir}]
                        if {[file exists ${archdir}/${dylib}]} {
                            system "install_name_tool -id ${prefix}/lib/libgcc/${dylib} ${archdir}/${dylib}"
                            foreach link [glob -tails -directory ${archdir} *.dylib] {
                                system "install_name_tool -change ${archdir_nodestroot}${link} ${prefix}/lib/libgcc/${link} ${archdir}/${dylib}"
                            }
                            system "lipo -create -output ${destroot}${prefix}/lib/libgcc.merged/${dylib}~ ${destroot}${prefix}/lib/libgcc.merged/${dylib} ${archdir}/${dylib} && mv ${destroot}${prefix}/lib/libgcc.merged/${dylib}~ ${destroot}${prefix}/lib/libgcc.merged/${dylib}"
                        }
                    }
                }

                # strip debug symbols to supress debugger warnings:
                # http://trac.macports.org/attachment/ticket/34831
                if {! [string match *libgcc_ext* ${dylib}]} {
                    system "strip -x ${destroot}${prefix}/lib/libgcc.merged/${dylib}"
                }
            }

            # Remove stuff not provided by libgccX ports
            file delete -force ${destroot}${prefix}/bin
            file delete -force ${destroot}${prefix}/share
            file delete -force ${destroot}${prefix}/lib/libgcc
            file delete -force ${destroot}${prefix}/libexec

            # Move temporary lib dir back in place
            move ${destroot}${prefix}/lib/libgcc.merged ${destroot}${prefix}/lib/libgcc

            # Remove includes. Provided by newer libgcc.
            file delete -force ${destroot}${prefix}/include

            set doc_dir ${destroot}${prefix}/share/doc/${subport}
            xinstall -m 755 -d ${doc_dir}
            system "echo ${subport} provides additional runtime > ${doc_dir}/README"

        }

    }

}

if {${subport} eq ${name}} {

    post-destroot {

        file delete ${destroot}${prefix}/share/info/dir

        foreach file [glob ${destroot}${prefix}/share/{info,man/man7}/*] {
            set extension [file extension ${file}]
            set newfile [regsub "${extension}$" ${file} "-mp-${major}${extension}"]
            file rename ${file} ${newfile}
        }

        # loop over libs to install
        foreach dylib ${all_dylibs} {
            # Different OS versions (e.g. Leopard) or architectures (e.g. PPC) don't produce all the dylibs
            # https://trac.macports.org/ticket/40098
            # https://trac.macports.org/ticket/40100
            if {[file exists ${destroot}${prefix}/lib/${name}/${dylib}]} {
                delete ${destroot}${prefix}/lib/${name}/${dylib}
                ln -s ${prefix}/lib/libgcc/${dylib} ${destroot}${prefix}/lib/${name}/${dylib}
            }
            if {[variant_exists universal] && [variant_isset universal]} {
                foreach archdir [glob ${destroot}${prefix}/lib/${name}/*/] {
                    if {[file exists ${archdir}/${dylib}]} {
                        delete ${archdir}/${dylib}
                        ln -s ${prefix}/lib/libgcc/${dylib} ${archdir}/${dylib}
                    }
                }
            }
        }

    }

    select.group        gcc
    select.file         ${filespath}/mp-${name}

}

if { ${subport} ne ${libcxxname} } {

    post-destroot {
        if {${os.platform} eq "darwin" && ${os.major} > 8} {
            # Ensure all dylibs in destroot have our extra rpath added ..
            # https://trac.macports.org/ticket/65503
            foreach dlib [ exec find ${destroot}${prefix} -type f -and -name "*.dylib" ] {
                ui_debug "Ensuring DYLIB '${dlib}' has RPATH '${mp_extra_rpath}'"
                # Note install_name_tool returns a failure if the dylib already has the entry
                # We don't want that here so force final status to be true...
                system "install_name_tool -add_rpath ${mp_extra_rpath} ${dlib} > /dev/null 2>&1 ; true"
            }
        }
    }

    if {${os.platform} eq "darwin" && ${os.major} <= 18} {
        switch -- $build_arch {
            i386 -
            x86_64 {
                configure.universal_archs i386 x86_64
            }
            ppc -
            ppc64 {
                configure.universal_archs ppc ppc64
            }
        }
        variant universal {
            configure.args-delete --disable-multilib
        }
    } else {
        universal_variant   no
    }
    # the generated compiler doesn't accept -arch
    configure.env-append \
        "CPP=${configure.cc} -E" \
        "CPP_FOR_BUILD=${configure.cc} -E" \
        "CXXCPP=${configure.cxx} -E"
    build.env-append \
        "CPP=${configure.cc} -E" \
        "CPP_FOR_BUILD=${configure.cc} -E" \
        "CXXCPP=${configure.cxx} -E"
    configure.cc-append [get_canonical_archflags]
    configure.cc_archflags
    configure.cxx-append ${configure.cxx_archflags}
    configure.cxx_archflags
    configure.objc_archflags
    configure.ld_archflags
    configure.universal_cflags
    configure.universal_cxxflags
    configure.universal_ldflags
    configure.universal_args

}

livecheck.type      regex
#livecheck.url       https://ftp.gnu.org/gnu/gcc/
livecheck.url       http://mirror.koddos.net/gcc/releases/
livecheck.regex     gcc-(${major}\\.\[0-9.\]+)/