Build g++.

2026-03-25 04:26:31 +01:00 · 2021-07-07 20:10:38 +01:00 · 2021-07-07 20:10:38 +01:00 · effa9ba93a
commit effa9ba93a
parent 3835f1e1aa
7 changed files with 83 additions and 17 deletions
--- a/sysa/gcc-4.7.4/gcc-4.7.4.sh
+++ b/sysa/gcc-4.7.4/gcc-4.7.4.sh
@ -0,0 +1,127 @@
+# SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
+# SPDX-FileCopyrightText: 2021 Paul Dersey <pdersey@gmail.com>
+
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+src_prepare() {
+    default
+
+    # Generated using gperf
+    rm gcc/cp/cfns.h
+
+    # Regenerating top level Makefile requires GNU Autogen and hence Guile,
+    # but it is not essential for building gcc.
+    rm configure Makefile.in fixincludes/fixincl.x
+
+    # Regenerate aclocal.m4 files
+    # grep "generated automatically by aclocal" */aclocal.m4  -l | sed -e 's#/aclocal.m4##'  | tr "\n" " " | sed -e 's/ $/\n/'
+    for dir in intl libcpp libdecnumber; do
+        cd $dir
+        rm aclocal.m4
+        AUTOCONF=autoconf-2.64 AUTOM4TE=autom4te-2.64 aclocal-1.11 --acdir=../config
+        cd ..
+    done
+    cd gcc
+    rm aclocal.m4
+    AUTOCONF=autoconf-2.64 AUTOM4TE=autom4te-2.64 aclocal-1.11 --acdir=../config
+    cd ..
+    cd fixincludes
+    rm aclocal.m4
+    AUTOCONF=autoconf-2.64 AUTOM4TE=autom4te-2.64 aclocal-1.11 --acdir=../gcc
+    cd ..
+    for dir in boehm-gc libffi libgfortran libgo libgomp libitm libjava libmudflap libobjc libquadmath libssp lto-plugin zlib; do
+        cd $dir
+        rm aclocal.m4
+        AUTOCONF=autoconf-2.64 AUTOM4TE=autom4te-2.64 aclocal-1.11
+        cd ..
+    done
+    cd libstdc++-v3
+    ACLOCAL=aclocal-1.11 AUTOMAKE=automake-1.11 AUTOCONF=autoconf-2.64 AUTOM4TE=autom4te-2.64 autoreconf-2.64 -fi
+    cd ..
+    # Regenerate configure scripts
+    # Find all folders with configure script and rebuild them. At the moment we exclude boehm-gc folder due to
+    # an error but we don't use that directory anyway (it's only needed for Objective C)
+    for dir in $(ls */configure | sed 's#/configure##' | tr "\n" " " | sed -e 's/ $/\n/' -e 's/^boehm-gc //'); do
+        cd $dir
+        rm configure
+        autoconf-2.64 || autoconf-2.64
+        cd ..
+    done
+
+    # Regenerate Makefile.in
+    # Find all folders with Makefile.am and rebuild them. At the moment we exclude boehm-gc folder.
+    for dir in $(ls */Makefile.am | sed 's#/Makefile.am##' | tr "\n" " " | sed -e 's/ $/\n/' -e 's/^boehm-gc //'); do
+        cd $dir
+        rm Makefile.in
+        AUTOCONF=autoconf-2.64 AUTOM4TE=autom4te-2.64 automake-1.11
+        cd ..
+    done
+
+    for dir in libdecnumber libcpp libiberty gcc; do
+        cd $dir
+        rm -f config.in
+        autoheader-2.64
+        cd ..
+    done
+
+    # Rebuild libtool files
+    rm config.guess config.sub ltmain.sh
+    libtoolize
+    cp "${PREFIX}/"/share/automake-1.15/config.sub .
+
+    # Workaround for bison being too new
+    rm intl/plural.c
+
+    # Rebuild flex generated files
+    rm gcc/gengtype-lex.c
+
+    # Remove translation catalogs
+    find . -name '*.gmo' -delete
+
+    # Pre-built texinfo files
+    find . -name '*.info' -delete
+}
+
+src_configure() {
+    mkdir build
+    cd build
+
+    for dir in libiberty libcpp libdecnumber gcc libgcc libstdc++-v3; do
+        mkdir $dir
+        cd $dir
+        ../../$dir/configure \
+            --prefix="${PREFIX}" \
+            --libdir="${PREFIX}"/lib/musl \
+            --build=i386-unknown-linux-musl \
+            --target=i386-unknown-linux-musl \
+            --host=i386-unknown-linux-musl \
+            --disable-shared \
+            --program-transform-name= \
+            --enable-languages=c,c++ \
+            --disable-sjlj-exceptions
+        cd ..
+    done
+    cd ..
+}
+
+src_compile() {
+    ln -s . build/build-i386-unknown-linux-musl
+    for dir in libiberty libcpp libdecnumber gcc; do
+        # We have makeinfo now but it is not happy with gcc .info files, so skip it
+        make -C build/$dir LIBGCC2_INCLUDES=-I"${PREFIX}/include" \
+	     STMP_FIXINC= GMPLIBS="-lmpc -lmpfr -lgmp" MAKEINFO=true
+    done
+
+    # host_subdir is necessary because we have slightly different build directory layout
+    make -C build/libgcc PATH="${PATH}:../gcc" CC=../gcc/xgcc \
+	 host_subdir=build CFLAGS="-I../gcc/include -I/${PREFIX}/include"
+
+    make -C build/libstdc++-v3 PATH="${PATH}:${PWD}/build/gcc" \
+	 CXXFLAGS="-I${PWD}/build/gcc/include -I ${PREFIX}/include"
+}
+
+src_install() {
+    make -C build/gcc install STMP_FIXINC= DESTDIR="${DESTDIR}" MAKEINFO=true
+    make -C build/libgcc install DESTDIR="${DESTDIR}" host_subdir=build
+    make -C build/libstdc++-v3 install DESTDIR="${DESTDIR}"
+}