/*
 * tcc — Tiny C Compiler.  The fast, tiny, self-hosting C compiler.
 *
 * Built from the MOB branch (0.9.28rc, commit d9d02c56 — the same
 * snapshot Alpine ships): the 0.9.27 release segfaults when compiling on
 * modern glibc/kernel (verified — even hello world crashed), while mob
 * carries the codegen and glibc-2.34 fixes (__malloc_hook is already
 * handled, so no patch is needed).  Pinned commit = reproducible.
 * Hosted on Alpine's stable archive (dev.alpinelinux.org).
 *
 * The check phase proves self-hosting: tcc compiles its own compiler
 * (-B. points at the uninstalled include dir) and the result runs.
 */
package "tcc" {
    const version = "0.9.28rc"
    const source  = "https://dev.alpinelinux.org/archive/tcc/tcc-d9d02c56401e43be43760b63f7d82f771a7ed1f6.tar.gz"
    sha256 = "b25f68a46930549553f6d679106d99d5a00b4d8f39a178baaeae6a50018e37ae"
    license = "LGPL-2.1-or-later"

    provides = ["tcc", "cc"]

    depends = [
        { name = "make" },
    ]

    prepare {
        curl -L -o tcc-${version}.tar.gz ${source}
        echo "b25f68a46930549553f6d679106d99d5a00b4d8f39a178baaeae6a50018e37ae  tcc-${version}.tar.gz" | sha256sum -c -
        tar xf tcc-${version}.tar.gz --strip-components=1
    }

    build {
        ./configure --prefix=${prefix}
        make -j${jobs}
    }

    check {
        ./tcc -B. -o tcc-selfhost tcc.c -I. -DONE_SOURCE -lm -ldl
        ./tcc-selfhost -v
    }

    // The store is not a standard /usr tree, but tcc bakes absolute paths
    // (configure --prefix).  A tiny wrapper injects -B<self>/../lib/tcc so
    // the plain `tcc` invocation finds its includes and runtime from any
    // store location.  $@ is deliberately unquoted (word-split; tcc args
    // are paths/flags).
    install {
        make DESTDIR=${destdir} install
        mv ${destdir}/usr/bin/tcc ${destdir}/usr/bin/tcc.real
        echo '#!/bin/sh' > ${destdir}/usr/bin/tcc
        echo 'DIR=$(dirname $(readlink -f $0))' >> ${destdir}/usr/bin/tcc
        echo 'exec $DIR/tcc.real -B$DIR/../lib/tcc $@' >> ${destdir}/usr/bin/tcc
        chmod 755 ${destdir}/usr/bin/tcc
    }
}