diff --git a/gcc10/gcc10.patch b/gcc10/gcc10.patch
new file mode 100644
index 0000000000..4049c5e082
--- /dev/null
+++ b/gcc10/gcc10.patch
@@ -0,0 +1,50 @@
+Index: gcc/config/i386/sol2.h
+--- gcc/config/i386/sol2.h.orig	2019-01-09 22:37:45.000000000 +0100
++++ gcc/config/i386/sol2.h	2019-05-07 08:14:25.850968000 +0200
+@@ -144,6 +144,9 @@
+   } while (0)
+ #endif
+ 
++#undef DEFAULT_PCC_STRUCT_RETURN
++#define DEFAULT_PCC_STRUCT_RETURN 1
++
+ /* The Solaris assembler wants a .local for non-exported aliases.  */
+ #define ASM_OUTPUT_DEF_FROM_DECLS(FILE, DECL, TARGET)	\
+   do {							\
+Index: gcc/config/sol2.h
+--- gcc/config/sol2.h.orig	2019-01-01 13:31:55.000000000 +0100
++++ gcc/config/sol2.h	2019-05-07 08:14:25.851308000 +0200
+@@ -419,9 +419,9 @@
+   "%{h*} %{v:-V} \
+    %{!shared:%{!static:%{rdynamic: " RDYNAMIC_SPEC "}}} \
+    %{static:-dn -Bstatic} \
+-   %{shared:-G -dy %{!mimpure-text:-z text}} " \
++   %{shared:-G -dy} " \
+    LINK_LIBGCC_MAPFILE_SPEC LINK_CLEARCAP_SPEC " \
+-   %{symbolic:-Bsymbolic -G -dy -z text} \
++   %{symbolic:-Bsymbolic -G -dy} \
+    %(link_arch) \
+    %{Qy:} %{!Qn:-Qy}"
+ 
+Index: libcpp/charset.c
+--- libcpp/charset.c.orig	2019-01-01 13:31:55.000000000 +0100
++++ libcpp/charset.c	2019-05-07 08:14:25.851757000 +0200
+@@ -74,6 +74,7 @@
+ #define iconv_open(x, y) (errno = EINVAL, (iconv_t)-1)
+ #define iconv(a,b,c,d,e) (errno = EINVAL, (size_t)-1)
+ #define iconv_close(x)   (void)0
++#undef ICONV_CONST
+ #define ICONV_CONST
+ #endif
+ 
+Index: libcpp/internal.h
+--- libcpp/internal.h.orig	2019-01-26 11:08:00.000000000 +0100
++++ libcpp/internal.h	2019-05-07 08:14:25.852032000 +0200
+@@ -28,6 +28,7 @@
+ #if HAVE_ICONV
+ #include <iconv.h>
+ #else
++#undef  HAVE_ICONV
+ #define HAVE_ICONV 0
+ typedef int iconv_t;  /* dummy */
+ #endif
diff --git a/gcc10/gcc10.spec b/gcc10/gcc10.spec
new file mode 100644
index 0000000000..308ff172d6
--- /dev/null
+++ b/gcc10/gcc10.spec
@@ -0,0 +1,403 @@
+##
+##  gcc10.spec -- OpenPKG RPM Package Specification
+##  Copyright (c) 2000-2019 OpenPKG Project <http://openpkg.org/>
+##
+##  Permission to use, copy, modify, and distribute this software for
+##  any purpose with or without fee is hereby granted, provided that
+##  the above copyright notice and this permission notice appear in all
+##  copies.
+##
+##  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+##  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+##  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+##  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
+##  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+##  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+##  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+##  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+##  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+##  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+##  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+##  SUCH DAMAGE.
+##
+
+#   package version
+%define       V_full         10
+%define       V_comp         10
+%define       V_snap         20190505
+
+#   package information
+Name:         gcc10
+Summary:      GNU Compiler Collection
+URL:          https://gcc.gnu.org/
+Vendor:       Free Software Foundation
+Packager:     OpenPKG Project
+Distribution: OpenPKG Community
+Class:        EVAL
+Group:        Compiler
+License:      GPL
+Version:      %{V_full}s%{V_snap}
+Release:      20190507
+
+#   package options
+%option       with_binutils  yes
+%option       with_cxx       yes
+%option       with_objc      no
+%option       with_go        no
+%option       with_java      no
+%option       with_fortran   no
+%option       with_optimize  no
+%option       with_profile   no
+%option       with_threads   yes
+%option       with_multilib  no
+%option       with_gcc       no
+
+#   list of sources
+Source0:      https://gcc.gnu.org/pub/gcc/snapshots/%{V_full}-%{V_snap}/gcc-%{V_full}-%{V_snap}.tar.xz
+Patch0:       gcc10.patch
+
+#   build information
+#   (actually also likes "flex", "bison" and "texinfo", but is able
+#   to build without it -- which is also important for bootstrapping)
+BuildPreReq:  OpenPKG, openpkg >= 20160101, make
+PreReq:       OpenPKG, openpkg >= 20160101
+%if "%{with_binutils}" == "yes"
+BuildPreReq:  binutils >= 2.14
+PreReq:       binutils >= 2.14
+%endif
+BuildPreReq:  mpc, mpfr, gmp
+PreReq:       mpc, mpfr, gmp
+%if "%{with_cxx}" == "yes"
+BuildPreReq:  libiconv
+PreReq:       libiconv
+%endif
+%if "%{with_java}" == "yes"
+BuildPreReq:  zlib
+PreReq:       zlib
+%endif
+%if "%{with_gcc}" == "yes"
+Provides:     gcc = %{version}-%{release}
+Provides:     gcc = %{version}-%{release}
+Provides:     gcc::with_binutils = %{with_binutils}
+Provides:     gcc::with_cxx = %{with_cxx}
+Provides:     gcc::with_objc = %{with_objc}
+Provides:     gcc::with_java = %{with_java}
+Provides:     gcc::with_fortran = %{with_fortran}
+Provides:     gcc::with_profile = %{with_profile}
+Provides:     gcc::with_threads = %{with_threads}
+Provides:     gcc::with_multilib = %{with_multilib}
+Provides:     gcc::with_gcc = %{with_gcc}
+%endif
+
+%description
+    The GNU Compiler Collection (GCC) provides standard conforming and
+    highly portable compilers for the ISO C, ISO C++, Objective-C,
+    Fortran, Java and Go languages.
+
+%track
+    prog gcc10 = {
+        version   = %{V_full}-%{V_snap}
+        url       = https://gcc.gnu.org/pub/gcc/snapshots/
+        regex     = (%{V_full}-\d{8})
+    }
+
+%prep
+    %setup -q -n gcc-%{V_full}-%{V_snap}
+    %patch -p0
+    %{l_shtool} subst -v -s \
+        -e 's;PREFIX_INCLUDE_DIR;PREFIX_INCLUDE_DIR_DISABLED;g' \
+        gcc/configure
+    if [ ".%{V_comp}" != . ]; then
+        %{l_shtool} subst -v -s \
+            -e 's;(libdir)/gcc/;(libdir)/gcc%{V_comp}/;' \
+            `find . -name Makefile.in -type f -print`
+    fi
+    case "%{l_platform -t}" in
+        amd64*-linux* )
+            %{l_shtool} subst \
+                -e 's/GLIBCXX_IS_NATIVE=false/GLIBCXX_IS_NATIVE=true/g' \
+                -e 's/test x.gcc_no_link = xyes/false/g' \
+                libstdc++-v3/configure
+            ;;
+    esac
+    %{l_shtool} subst \
+        -e 's;<iconv\.h>;"%{l_prefix}/include/iconv.h";' \
+        libstdc++-v3/include/ext/codecvt_specializations.h
+
+%build
+    #   support bootstrapping GCC on systems without C++ compiler
+    #   (requires OpenPKG package "gcc-bootstrap")
+    if [ -d %{l_prefix}/libexec/gcc-bootstrap/bin-bootstrap ]; then
+        PATH="%{l_prefix}/libexec/gcc-bootstrap/bin-bootstrap:$PATH"
+    fi
+
+    #   create build sub-directory
+    %{l_shtool} mkdir -p obj
+    cd obj
+
+    #   determine ld(1) and as(1) usage
+    l_with_gnu_ld_as=""
+    LD=%{l_tool_locate ld ld}
+    AS=%{l_tool_locate as as}
+    echo $LD | grep '^/' >/dev/null && l_with_gnu_ld_as="${l_with_gnu_ld_as} --with-ld=$LD"
+    echo $AS | grep '^/' >/dev/null && l_with_gnu_ld_as="${l_with_gnu_ld_as} --with-as=$AS"
+    $LD --version </dev/null 2>/dev/null | grep "^GNU ld "        >/dev/null && l_with_gnu_ld_as="${l_with_gnu_ld_as} --with-gnu-ld"
+    $AS --version </dev/null 2>/dev/null | grep "^GNU assembler " >/dev/null && l_with_gnu_ld_as="${l_with_gnu_ld_as} --with-gnu-as"
+    unset LD
+    unset AS
+
+    #   determine threads usage
+%if "%{with_threads}" == "yes"
+    l_enable_threads="posix"
+%else
+    l_enable_threads="no"
+%endif
+
+    #   determine language usage
+    l_enable_languages="c"
+%if "%{with_cxx}" == "yes"
+    l_enable_languages="${l_enable_languages},c++"
+%endif
+%if "%{with_objc}" == "yes"
+    l_enable_languages="${l_enable_languages},objc"
+%endif
+%if "%{with_go}" == "yes"
+    l_enable_languages="${l_enable_languages},go"
+%endif
+%if "%{with_java}" == "yes"
+    l_enable_languages="${l_enable_languages},java"
+%endif
+%if "%{with_fortran}" == "yes"
+    l_enable_languages="${l_enable_languages},f95"
+%endif
+
+    #   disable GNU gettext usage
+    ( echo "ac_cv_header_libintl_h=no"
+      echo "ac_cv_search_gettext=no"
+    ) >config.cache
+
+%if "%{with_cxx}" != "yes"
+    #   disable GNU iconv usage
+    ( echo "am_cv_func_iconv=no"
+      echo "am_cv_lib_iconv=no"
+    ) >>config.cache
+%endif
+
+    #   configure the package
+    clocale="auto"
+    case "%{l_platform -t}" in
+        *-linux* ) clocale="generic" ;;
+    esac
+    CC="%{l_cc}" \
+    CXX="%{l_cxx}" \
+    CFLAGS="%{l_cflags}" \
+    CXXFLAGS="%{l_cxxflags}" \
+%if "%{with_java}" == "yes" || "%{with_fortran}" == "yes" || "%{with_cxx}" == "yes"
+    CPPFLAGS="%{l_cppflags}" \
+    LDFLAGS="%{l_ldflags}" \
+%endif
+    CONFIG_SHELL="%{l_bash}" \
+    ../configure \
+        --cache-file=./config.cache \
+        --with-bugurl="http://openpkg.org/" \
+        --with-pkgversion="GCC %{l_openpkg_release -F "OpenPKG-%%t"}" \
+        --srcdir=`pwd`/.. \
+        --prefix=%{l_prefix} \
+        --exec-prefix=%{l_prefix} \
+        --mandir=%{l_prefix}/man \
+        --infodir=%{l_prefix}/info \
+        --includedir=%{l_prefix}/include/gcc%{V_comp} \
+        --libexecdir=%{l_prefix}/libexec/gcc%{V_comp} \
+        --with-gxx-include-dir=%{l_prefix}/include/g++%{V_comp} \
+        --with-local-prefix=%{l_prefix}/lib/gcc%{V_comp} \
+        --enable-languages="${l_enable_languages}" \
+        --enable-threads="${l_enable_threads}" \
+        --disable-werror \
+        --disable-maintainer-mode \
+        --disable-shared \
+        --disable-nls \
+        --enable-clocale=$clocale \
+        --with-pic \
+%if "%{with_java}" == "yes"
+        --with-system-zlib \
+%endif
+%if "%{with_multilib}" == "yes"
+        --enable-multilib \
+%else
+        --disable-multilib \
+%endif
+%if "%{with_cxx}" == "yes"
+        --with-libiconv-prefix=%{l_prefix} \
+%else
+        --without-libiconv-prefix \
+%endif
+        --with-gmp=%{l_prefix} \
+        --with-mpfr=%{l_prefix} \
+        --with-mpc=%{l_prefix} \
+        ${l_with_gnu_ld_as}
+
+    #   determine build flags
+    l_ccisgcc=no
+    if [ ".`(%{l_cc} -v; %{l_cc} --version) </dev/null 2>&1 | grep -i 'gcc'`" != . ]; then
+        l_ccisgcc=yes
+    fi
+    l_cflags=""
+    l_cxxflags=""
+    l_boot_cflags=""
+    l_libcflags="-g"
+    l_libcxxflags="-g"
+    #   at least GNU as from GNU binutils supports -pipe always
+    AS="%{l_tool_locate as as}"
+    "$AS" --version </dev/null 2>/dev/null | grep "^GNU assembler " >/dev/null && {
+        l_boot_cflags="$l_boot_cflags -pipe"
+        l_libcxxflags="$l_libcxxflags -pipe"
+    }
+%if "%{with_optimize}" == "yes"
+    #   conservatively optimize the generated program code
+    #   (also _tune_ for particular CPUs, but _without_ requiring these CPUs!)
+    l_cflags="$l_cflags -O"
+    l_boot_cflags="$l_boot_cflags -O2 -fomit-frame-pointer"
+    case "%{l_platform -t}" in
+        *i?86-*     ) l_boot_cflags="$l_boot_cflags -mtune=pentium3" ;;
+        *sun4[uv]-* ) l_boot_cflags="$l_boot_cflags -mtune=v9"       ;;
+    esac
+    l_libcxxflags="$l_libcxxflags -O2 -fno-implicit-templates"
+%else
+    #   else do no optimizations at all to reduce problems to minimum in advance
+    l_boot_cflags="$l_boot_cflags -O0"
+    l_libcxxflags="$l_libcxxflags -O0"
+%endif
+    maketarget="bootstrap2-lean"
+%if "%{with_profile}" == "yes"
+    #   GCC >= 3.4 supports a "profiledbootstrap" target to build an
+    #   optimized version of itself through profiling. Because this
+    #   requires a (bootstrapping) C compiler with 64-bit arithmetic,
+    #   the whole approach is currently supported only if already
+    #   building with GCC as the bootstrapping C compiler.
+    if [ ".$l_ccisgcc" = .yes ]; then
+        maketarget="profiledbootstrap"
+    fi
+%endif
+    case "%{l_platform -t}" in
+        amd64-*          ) l_cflags="$l_cflags -fPIC"; l_cxxflags="$l_cxxflags -fPIC"; l_libcflags="$l_libcflags -fPIC"; l_libcxxflags="$l_libcxxflags -fPIC" ;;
+        ia64-*           ) l_cflags="$l_cflags -fPIC"; l_cxxflags="$l_cxxflags -fPIC"; l_libcflags="$l_libcflags -fPIC"; l_libcxxflags="$l_libcxxflags -fPIC" ;;
+        sparc64-freebsd* ) l_cflags="$l_cflags -fPIC"; l_cxxflags="$l_cxxflags -fPIC"; l_libcflags="$l_libcflags -fPIC"; l_libcxxflags="$l_libcxxflags -fPIC" ;;
+    esac
+%if "%{with_java}" == "yes" || "%{with_fortran}" == "yes" || "%{with_cxx}" == "yes"
+    l_cflags="$l_cflags %{l_cppflags}"
+    l_cxxflags="$l_cxxflags %{l_cppflags}"
+    l_libcflags="$l_libcflags %{l_cppflags}"
+    l_libcxxflags="$l_libcxxflags %{l_cppflags}"
+%endif
+
+    #   build the package
+    MAKE="%{l_make} %{l_mflags}" \
+    %{l_make} %{l_mflags} \
+        MAKE="%{l_make} %{l_mflags}" \
+        BOOT_CFLAGS="${l_boot_cflags}" \
+        CFLAGS="${l_cflags}" \
+        CXXFLAGS="${l_cxxflags}" \
+        LIBCFLAGS="${l_libcflags}" \
+        LIBCXXFLAGS="${l_libcxxflags}" \
+        $maketarget
+
+%install
+    #   support bootstrapping GCC on systems without C++ compiler
+    #   (requires OpenPKG package "gcc-bootstrap")
+    if [ -d %{l_prefix}/libexec/gcc-bootstrap/bin-bootstrap ]; then
+        PATH="%{l_prefix}/libexec/gcc-bootstrap/bin-bootstrap:$PATH"
+    fi
+
+    #   fetch GNU platform triple
+    triple=`./config.guess`
+
+    #   perform the standard installation procedure
+    ( cd obj
+      %{l_make} %{l_mflags} install DESTDIR=$RPM_BUILD_ROOT
+    ) || exit $?
+
+    #   cleanup installation tree
+    mv $RPM_BUILD_ROOT%{l_prefix}/lib/{lib*.a,*.spec} \
+       $RPM_BUILD_ROOT%{l_prefix}/lib/gcc%{V_comp}/${triple}/[0-9]*/ \
+       >/dev/null 2>&1 || true
+    mv $RPM_BUILD_ROOT%{l_prefix}/lib64/{lib*.a,*.spec} \
+       $RPM_BUILD_ROOT%{l_prefix}/lib/gcc%{V_comp}/${triple}/[0-9]*/ \
+       >/dev/null 2>&1 || true
+    dirs=""
+    for multilib in `$RPM_BUILD_ROOT%{l_prefix}/bin/gcc --print-multi-lib`; do
+        subdir=`echo "$multilib" | sed -e 's/;.*$//'`
+        [ ".$subdir" = .. ] && continue
+        mv $RPM_BUILD_ROOT%{l_prefix}/lib/$subdir/lib*.a \
+           $RPM_BUILD_ROOT%{l_prefix}/lib/gcc%{V_comp}/${triple}/[0-9]*/$subdir/ \
+           >/dev/null 2>&1 || true
+        mv $RPM_BUILD_ROOT%{l_prefix}/lib64/$subdir/lib*.a \
+           $RPM_BUILD_ROOT%{l_prefix}/lib/gcc%{V_comp}/${triple}/[0-9]*/$subdir/ \
+           >/dev/null 2>&1 || true
+        dirs="$dirs $subdir"
+    done
+    for subdir in $dirs; do
+        rm -rf $RPM_BUILD_ROOT%{l_prefix}/lib/$subdir >/dev/null 2>&1 || true
+    done
+    mv $RPM_BUILD_ROOT%{l_prefix}/${triple}/include/* \
+       $RPM_BUILD_ROOT%{l_prefix}/lib/gcc%{V_comp}/${triple}/[0-9]*/include/ \
+           >/dev/null 2>&1 || true
+
+    #   strip installation tree
+    rm -rf $RPM_BUILD_ROOT%{l_prefix}/${triple}
+    rm -rf $RPM_BUILD_ROOT%{l_prefix}/share/gcc-*/python >/dev/null 2>&1 || true
+    rmdir  $RPM_BUILD_ROOT%{l_prefix}/share/gcc-*        >/dev/null 2>&1 || true
+    rm -f  $RPM_BUILD_ROOT%{l_prefix}/info/dir
+    rm -rf $RPM_BUILD_ROOT%{l_prefix}/man/man7   >/dev/null 2>&1 || true
+    rm -f  $RPM_BUILD_ROOT%{l_prefix}/lib/*.la   >/dev/null 2>&1 || true
+    rm -f  $RPM_BUILD_ROOT%{l_prefix}/lib/libstdc++.a-gdb.py >/dev/null 2>&1 || true
+    rm -rf $RPM_BUILD_ROOT%{l_prefix}/lib64      >/dev/null 2>&1 || true
+    rm -f  $RPM_BUILD_ROOT%{l_prefix}/bin/*-gcc* >/dev/null 2>&1 || true
+%if "%{with_cxx}" == "yes"
+    rm -f  $RPM_BUILD_ROOT%{l_prefix}/bin/*-c++  >/dev/null 2>&1 || true
+    rm -f  $RPM_BUILD_ROOT%{l_prefix}/bin/*-g++  >/dev/null 2>&1 || true
+%endif
+    strip $RPM_BUILD_ROOT%{l_prefix}/bin/* >/dev/null 2>&1 || true
+    for prog in cc1 cc1plus collect2 cpp; do
+        strip $RPM_BUILD_ROOT%{l_prefix}/lib/gcc%{V_comp}/${triple}/[0-9]*/${prog} \
+            >/dev/null 2>&1 || true
+    done
+
+    #   bump up installation tree
+    ln $RPM_BUILD_ROOT%{l_prefix}/bin/gcc \
+       $RPM_BUILD_ROOT%{l_prefix}/bin/cc
+    ln $RPM_BUILD_ROOT%{l_prefix}/man/man1/gcc.1 \
+       $RPM_BUILD_ROOT%{l_prefix}/man/man1/cc.1
+%if "%{with_cxx}" == "yes"
+    ln $RPM_BUILD_ROOT%{l_prefix}/man/man1/g++.1 \
+       $RPM_BUILD_ROOT%{l_prefix}/man/man1/c++.1
+%endif
+
+    #   resolve filename conflicts
+%if "%{with_gcc}" != "yes" && "%{V_comp}" != ""
+    ( cd $RPM_BUILD_ROOT%{l_prefix}/bin
+      for file in *; do
+          [ ".$file" = ".*" ] && continue
+          mv ${file} ${file}%{V_comp}
+      done
+    ) || exit $?
+    ( cd $RPM_BUILD_ROOT%{l_prefix}/info
+      for file in *; do
+          [ ".$file" = ".*" ] && continue
+          mv ${file} `echo ${file} | sed -e 's;^\([^.]*\)\(\..*\)$;\1%{V_comp}\2;'`
+      done
+    ) || exit $?
+    ( cd $RPM_BUILD_ROOT%{l_prefix}/man/man1
+      for file in *; do
+          [ ".$file" = ".*" ] && continue
+          mv ${file} `echo ${file} | sed -e 's;^\([^.]*\)\(\..*\)$;\1%{V_comp}\2;'`
+      done
+    ) || exit $?
+%endif
+
+    #   determine installation file list
+    %{l_rpmtool} files -v -ofiles -r$RPM_BUILD_ROOT %{l_files_std}
+
+%files -f files
+
+%clean
+