First push!

2026-08-18 00:31:50 -04:00
commit 5f93867198
10 changed files with 431 additions and 0 deletions
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+/*
+ * gcc — the GNU C and C++ compiler.
+ *
+ * The seed compiler for the whole distro.  Out-of-tree build (gcc refuses
+ * in-tree configure) with the default 3-stage bootstrap: the compiler
+ * builds itself twice, so what lands in the store is self-hosted.
+ *
+ * LANGUAGES: c,c++ — gcc's bootstrap FORCES the C++ frontend even for a
+ * C-only request (configure.ac: "If bootstrapping, C++ must be enabled"),
+ * so the explicit c,c++ is the honest configuration.  It also ships
+ * libstdc++, which everything downstream (including kappa itself) needs.
+ * LTO is always enabled.
+ *
+ * BUILD REQUIREMENTS
+ * ==================
+ * - the three math libs via --with-gmp/--with-mpfr/--with-mpc (resolved
+ *   from the dependency paths below; they build static-only, so gcc links
+ *   them statically and needs no runtime lib resolution)
+ * - binutils: its bin dir is prepended to PATH so gcc finds as/ld
+ * - a C++ compiler on the bootstrap system: cc1 is C++, even for the C
+ *   frontend (the seed toolchain that built kappa provides one)
+ * - make
+ *
+ * PORTABILITY
+ * ===========
+ * - --disable-multilib: barebones systems have no 32-bit libs to link
+ * - --disable-nls: no gettext dependency
+ * - prebuilt .info pages ship in the tarball, so texinfo is NOT required
+ * - the testsuite needs dejagnu and takes hours — check is omitted
+ * - bootstrap needs ~10 GB of temp space; keep KAPPA_ROOT off tmpfs
+ */
+package "gcc" {
+    const version = "16.2.0"
+    const source  = "https://ftp.gnu.org/gnu/gcc/gcc-${version}/gcc-${version}.tar.gz"
+    sha256 = "071d00a097579e5ef7ce97fc4a9e58e73fd3503c0a013c765c970370a5a53b9b"
+    license = "GPL-3.0-or-later WITH GCC-exception-3.1"
+
+    provides = ["cc", "gcc", "cpp"]
+
+    depends = [
+        { name = "gmp" },
+        { name = "mpfr" },
+        { name = "mpc" },
+        { name = "binutils" },
+        { name = "make" },
+    ]
+
+    prepare {
+        curl -L -O ${source}
+        echo "071d00a097579e5ef7ce97fc4a9e58e73fd3503c0a013c765c970370a5a53b9b  gcc-${version}.tar.gz" | sha256sum -c -
+        // Rebuilds reuse the temp work dir — wipe any stale out-of-tree
+        // build state before extracting a fresh source tree.
+        rm -rf gcc-${version}
+        tar xf gcc-${version}.tar.gz
+        ROOT=$KAPPA_ROOT; [ -z $ROOT ] && ROOT=/usr/local/kappa; if [ -d $ROOT/temp/gmp/destdir/usr ]; then echo $ROOT/temp/gmp/destdir/usr; else echo $ROOT/bin/$(grep '^gmp ' $ROOT/db/installed | tail -1 | cut -d' ' -f3)/usr; fi > gmp.path; if [ -d $ROOT/temp/mpfr/destdir/usr ]; then echo $ROOT/temp/mpfr/destdir/usr; else echo $ROOT/bin/$(grep '^mpfr ' $ROOT/db/installed | tail -1 | cut -d' ' -f3)/usr; fi > mpfr.path; if [ -d $ROOT/temp/mpc/destdir/usr ]; then echo $ROOT/temp/mpc/destdir/usr; else echo $ROOT/bin/$(grep '^mpc ' $ROOT/db/installed | tail -1 | cut -d' ' -f3)/usr; fi > mpc.path; if [ -d $ROOT/temp/binutils/destdir/usr/bin ]; then echo $ROOT/temp/binutils/destdir/usr/bin; else echo $ROOT/bin/$(grep '^binutils ' $ROOT/db/installed | tail -1 | cut -d' ' -f3)/usr/bin; fi > bin.path
+        mkdir -p gcc-${version}/build
+    }
+
+    // "c,c++" is double-quoted because a bare comma is a DSL token that gets
+    // re-joined with a space (--enable-languages=c, c++ would split argv).
+    build {
+        GMP=$(cat gmp.path); MPFR=$(cat mpfr.path); MPC=$(cat mpc.path); BIN=$(cat bin.path); cd gcc-${version}/build; PATH=$BIN:$PATH ../configure --prefix=${prefix} --with-gmp=$GMP --with-mpfr=$MPFR --with-mpc=$MPC --enable-languages="c,c++" --disable-multilib --disable-nls
+        BIN=$(cat bin.path); cd gcc-${version}/build; PATH=$BIN:$PATH make -j${jobs}
+    }
+
+    install {
+        BIN=$(cat bin.path); cd gcc-${version}/build; PATH=$BIN:$PATH make DESTDIR=${destdir} install
+    }
+}