OpenPKG Specs: gcc/gcc.spec@4a34d7a82eab (annotated)

gcc/gcc.spec@4a34d7a82eab (annotated)

gcc/gcc.spec

Tue, 29 Mar 2011 20:04:34 +0200

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Tue, 29 Mar 2011 20:04:34 +0200
changeset 334: 4a34d7a82eab
parent 332: 2289d64c2123
child 335: 6eb79a12ee37
permissions: -rw-r--r--

Rework package yet again, correcting and introducing new buildconf logic:
Conditionally disable bootstrap stage comparison correctly, correct
english grammar, better find system as(1) and ld(1), indotruce detailed
optimization option messages, more completely guess cpu types, allow
profiled bootstrapping without a preinstalled GCC because many other
compilers have long since implemented 64-bit arithmetic, instruct make
to build sequentially (not in sparallel) when building a profiled
bootstrap as GCC online documents recommend, and generally improve
comment blocks.

The single most important correction in this changeset relates to the
GCC changed optimization policy since at least GCC 4.5, in which -march
is always passed and not always correctly guessed. In the case of this
package, allowing GCC to guess the architecture leads to wild build
errors at various subcomponents (zlib, libgcc, libiberty...) and
bootstrap stages. It seems quite platform specific, and the safest
approach to correcting this seems to be explicitly always specifying the
-march argument when bootstrapping GCC. Because the best choice 'native'
is not available when bootstrapping using a foreign (non GCC) compiler,
a guess is made according to rpmmacros l_platform in that case.

It is questionable as to whether these recent optimization changes
on the part of GCC or this package are compatible with each other,
or if either are complete or correct at all. At least applying these
corrections allows this package to build again in most cases test.

 ##
 ##  gcc.spec -- OpenPKG RPM Package Specification
 ##  Copyright (c) 2000-2010 OpenPKG Foundation e.V. <http://openpkg.net/>
 ##
 ##  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         4.6.0
 %define       V_comp         %nil
 #   package information
 Name:         gcc
 Summary:      GNU Compiler Collection
 URL:          http://gcc.gnu.org/
 Vendor:       Free Software Foundation
 Packager:     OpenPKG Foundation e.V.
 Distribution: OpenPKG Community
 Class:        CORE
 Group:        Compiler
 License:      GPL
 Version:      %{V_full}
 Release:      20110320
 #   package options
 %option       with_binutils  yes
 %option       with_cxx       yes
 %option       with_objc      no
 %option       with_java      no
 %option       with_fortran   no
 %option       with_optimize  yes
 %option       with_profile   no
 %option       with_threads   yes
 %option       with_multilib  no
 #   list of sources
 Source0:      ftp://gcc.gnu.org/pub/gcc/releases/gcc-%{V_full}/gcc-core-%{V_full}.tar.bz2
 Source1:      ftp://gcc.gnu.org/pub/gcc/releases/gcc-%{V_full}/gcc-g++-%{V_full}.tar.bz2
 Source2:      ftp://gcc.gnu.org/pub/gcc/releases/gcc-%{V_full}/gcc-objc-%{V_full}.tar.bz2
 Source3:      ftp://gcc.gnu.org/pub/gcc/releases/gcc-%{V_full}/gcc-java-%{V_full}.tar.bz2
 Source4:      ftp://gcc.gnu.org/pub/gcc/releases/gcc-%{V_full}/gcc-fortran-%{V_full}.tar.bz2
 Patch0:       gcc.patch
 #   build information
 Prefix:       %{l_prefix}
 BuildRoot:    %{l_buildroot}
 BuildPreReq:  OpenPKG, openpkg >= 20060823, make
 PreReq:       OpenPKG, openpkg >= 20060823
 BuildPreReq:  mpc, mpfr, gmp
 PreReq:       mpc, mpfr, gmp
 %if "%{with_binutils}" == "yes"
 BuildPreReq:  binutils >= 2.14
 PreReq:       binutils >= 2.14
 %endif
 %if "%{with_cxx}" == "yes"
 BuildPreReq:  libiconv
 PreReq:       libiconv
 %endif
 %if "%{with_java}" == "yes"
 BuildPreReq:  zlib
 PreReq:       zlib
 %endif
 AutoReq:      no
 AutoReqProv:  no
 %description
     The GNU Compiler Collection (GCC) provides standard conforming and
     highly portable compilers for the ISO C, ISO C++, Objective-C,
     Fortran and Java languages.
 %track
     prog gcc = {
         version   = %{V_full}
         url       = ftp://gcc.gnu.org/pub/gcc/releases/
         regex     = gcc-(4\.\d+\.\d+)
         url       = ftp://gcc.gnu.org/pub/gcc/releases/gcc-__NEWVER__/
         regex     = gcc-core-(\d+\.\d+\.\d+)\.tar\.bz2
     }
 %prep
     %setup -q
 %if "%{with_cxx}" == "yes"
     %setup -q -T -D -b 1
 %endif
 %if "%{with_objc}" == "yes"
     %setup -q -T -D -b 2
 %endif
 %if "%{with_java}" == "yes"
     %setup -q -T -D -b 3
 %endif
 %if "%{with_fortran}" == "yes"
     %setup -q -T -D -b 4
 %endif
     %patch -p0
     %{l_shtool} subst \
         -e 's;\(instname="\$dir/\$name"\)i;\1;' \
         ltmain.sh
     %{l_shtool} subst -v -s \
         -e 's;\(gmplibs="-lmpc\) \(-lmpfr -lgmp\);\1 -lm \2;' \
         configure
     %{l_shtool} subst -v -s \
         -e 's;PREFIX_INCLUDE_DIR;PREFIX_INCLUDE_DIR_DISABLED;g' \
         gcc/configure
     %{l_shtool} subst \
         -e 's;[ \t]*-W[a-zA-Z0-9_\-][a-zA-Z0-9_\-]*,*;;g' \
         lto-plugin/Makefile.in
     %{l_shtool} subst \
         -e 's;-rpath  *[^ \t][^ \t]*;;g' \
         -e 's;--tag=disable-static;--tag=disable-shared;g' \
         -e 's;\.\./libiberty/libiberty\.a;-L../libiberty -liberty;g' \
         -e 's;\.\./libiberty/pic/libiberty\.a;-L../libiberty/pic -liberty;g' \
         lto-plugin/Makefile.in
     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
     %{l_shtool} subst \
         -e 's;^\(do-compare\) *\(=.*\);#\1-shouldnt-be-defined-here \2;' \
         config/*.mk
     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
     #   create build subdirectory
     %{l_shtool} mkdir -p obj
     cd obj
     #   locate ld(1) and as(1) accordingly
 %if "%{with_binutils}" == "yes"
     #   allow OpenPKG binutils
     LD=%{l_tool_locate ld ld}
     AS=%{l_tool_locate as as}
 %else
     #   ignore OpenPKG binutils
     LD=`PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/ccs/bin:/opt/bin:/opt/sbin:/usr/local/bin:/usr/local/sbin which ld`
     AS=`PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/ccs/bin:/opt/bin:/opt/sbin:/usr/local/bin:/usr/local/sbin which as`
 %endif
     l_with_gnu_ld_as=""
     echo $LD | grep '^/' >/dev/null && l_with_gnu_ld_as="--with-ld=$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" || l_with_gnu_ld_as="${l_with_gnu_ld_as} --without-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" || l_with_gnu_ld_as="${l_with_gnu_ld_as} --without-gnu-as"
     #   determine threads use
 %if "%{with_threads}" == "yes"
     l_enable_threads="posix"
 %else
     l_enable_threads="single"
 %endif
     #   determine language use
     l_enable_languages="c"
 %if "%{with_cxx}" == "yes"
     l_enable_languages="${l_enable_languages},c++"
 %endif
 %if "%{with_objc}" == "yes"
     l_enable_languages="${l_enable_languages},objc"
 %endif
 %if "%{with_java}" == "yes"
     l_enable_languages="${l_enable_languages},java"
 %endif
 %if "%{with_fortran}" == "yes"
     l_enable_languages="${l_enable_languages},f95"
 %endif
     #   disable GNU iconv use
     ( echo "am_cv_func_iconv=no"
       echo "am_cv_lib_iconv=no"
     ) >config.cache
     #   platforms failing 'compare' make target (see prep as well)
     case "%{l_platform -t}" in
         *i?86-sunos*  ) echo "gcc_cv_prog_cmp_skip=true" >>config.cache ;;
         *amd64-linux* ) echo "gcc_cv_prog_cmp_skip=true" >>config.cache ;;
     esac
     #   configure the package
     LD="$LD" \
     AS="$AS" \
     CC="%{l_cc}" \
     CFLAGS="%{l_cflags}" \
 %if "%{with_java}" == "yes" || "%{with_fortran}" == "yes" || "%{with_cxx}" == "yes"
     CPPFLAGS="%{l_cppflags}" \
     LDFLAGS="%{l_ldflags}" \
 %endif
     CONFIG_SHELL="%{l_bash}" \
     GREP="%{l_bash}" \
     ../configure \
         --with-bugurl="http://openpkg.org/" \
         --with-pkgversion="%{l_openpkg_release -F "OpenPKG-%%t"}" \
         --cache-file=./config.cache \
         --srcdir=`pwd`/.. \
         --prefix=%{l_prefix} \
         --exec-prefix=%{l_prefix} \
         --mandir=%{l_prefix}/man \
         --infodir=%{l_prefix}/info \
         --includedir=%{l_prefix}/include/gcc%{V_comp} \
         --libexecdir=%{l_prefix}/libexec/gcc%{V_comp} \
         --with-gxx-include-dir=%{l_prefix}/include/g++%{V_comp} \
         --with-local-prefix=%{l_prefix}/lib/gcc%{V_comp} \
         --enable-languages="${l_enable_languages}" \
         --enable-threads="${l_enable_threads}" \
         --disable-maintainer-mode \
         --disable-shared \
         --disable-nls \
 %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} \
 %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" --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"
     #   GCC authors are not keeping up with optimized portability expectations
     ( echo "As GCC advances its optimization logic becomes increasingly complex (and"
       echo "buggy?) Since at least GCC 4.5, problems have been reported using arguments"
       echo "-O, -mtune, or -march implicitly or explicitly during different bootstrap"
       echo "stages as well as stage comparison and even the final installation."
       echo ""
       echo "Pay attention when building on one computer and installing on another as"
       echo "problems may be platform specific. If in doubt, disable optimization."
     ) | %{l_rpmtool} msg -b -t warn
     if [ ".$l_ccisgcc" = .yes ]; then
         l_archia32=native; l_archia64=native; l_archamd64=native
     else
         #   CPU native detection only works with GCC (see driver-i386.c)
         ( echo "Platform specific optimization is enabled, but detection of appropriate"
           echo "native architecture is only possible when bootstrapping GCC using a pre-"
           echo "installed GCC. The current build is using a different compiler, so to"
           echo "provide any optimization at all a wild guess is made and a CPU type"
           echo "hardcoded instead of using accurate native detection."
           echo ""
           echo "To achieve accurate optimization of GCC please install GCC first. Then"
           echo "build this package a second time which will use GCC to bootstrap itself."
         ) | %{l_rpmtool} msg -b -t notice
         #   guess lowest common denominator CPU types
         #   http://en.wikipedia.org/wiki/(X86|X64-64)
         #   http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86_002d64-Options.html
         l_archia32=pentium3; l_archia64=nocona; l_archamd64=k8
     fi
     #   this optimization logic is unportable and could cause problems
     #   if installing the resulting binary package on a different host!
     case "%{l_platform -t}" in
         *sun4[uv]-* ) l_boot_cflags="$l_boot_cflags -mtune=v9" ;;
         *sun-*      ) l_boot_cflags="$l_boot_cflags -mtune=v8" ;;
         *i?86-*     ) l_boot_cflags="$l_boot_cflags -march=$l_archia32" ;;
         *ia64-*     ) l_boot_cflags="$l_boot_cflags -march=$l_archia64" ;;
         *amd64-*    ) l_boot_cflags="$l_boot_cflags -march=$l_archamd64" ;;
         *           ) l_boot_cflags="$l_boot_cflags -mtune=generic" ;;
     esac
     l_cflags="$l_cflags -O"
     l_boot_cflags="$l_boot_cflags -O3 -fomit-frame-pointer"
     l_libcxxflags="$l_libcxxflags -O3 -fno-implicit-templates"
 %else
     #   don't optimize at all to avoid problems
     l_boot_cflags="$l_boot_cflags -O0"
     l_libcxxflags="$l_libcxxflags -O0"
 %endif
 %if "%{with_profile}" == "yes"
     maketarget="profiledbootstrap"
     loc_makeflags="%{l_mflags}"
     if [ ".$l_ccisgcc" != .yes ]; then
         ( echo "A preinstalled GCC is recommended when bootstrapping a profiled GCC. If the"
           echo "compiler used to bootstrap GCC doesn't support 64-bit arithmetic, then"
           echo "either runtime or buildtime errors could occur. Regardless of this,"
           echo "parallel make logic is disabled according to profiling requirements."
           echo ""
           echo "If in doubt, stop now and start the build again with profiling disabled."
         ) | %{l_rpmtool} msg -b -t warn
     fi
 %else
     maketarget="bootstrap"
     loc_makeflags="%{l_mflags -O}"
 %endif
     case "%{l_platform -t}" in
         *64-* ) l_cflags="$l_cflags -fPIC"; l_cxxflags="$l_cxxflags -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} ${loc_makeflags}" \
     %{l_make} ${loc_makeflags} \
         GREP="grep" \
         MAKE="%{l_make} ${loc_makeflags}" \
         BOOT_CFLAGS="${l_boot_cflags}" \
         CFLAGS="${l_cflags}" \
         CXXFLAGS="${l_cxxflags}" \
         LIBCFLAGS="${l_libcflags}" \
         LIBCXXFLAGS="${l_libcxxflags}" \
         $maketarget
 %install
     rm -rf $RPM_BUILD_ROOT
     #   fetch GNU platform triple
     triple=`./config.guess`
     #   perform the standard installation procedure
     ( cd obj
       %{l_make} %{l_mflags} install DESTDIR=$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
     #   correct hardcoded paths
     %{l_shtool} subst \
         -e "s;\(dependency_libs='[ \t]*-L\).*;\1%{l_prefix}/lib -L%{l_prefix}/lib/gcc%{V_comp}/${triple}/[0-9]* -liberty';" \
        $RPM_BUILD_ROOT%{l_prefix}/lib/gcc%{V_comp}/${triple}/[0-9]*/liblto_plugin.la
     #   strip installation tree
     rm -rf $RPM_BUILD_ROOT%{l_prefix}/${triple}
     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 -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 \
        $RPM_BUILD_ROOT%{l_prefix}/man/man1/c++.1
 %endif
     #   determine installation file list
     %{l_rpmtool} files -v -ofiles -r$RPM_BUILD_ROOT %{l_files_std}
 %files -f files
 %clean
     rm -rf $RPM_BUILD_ROOT

OpenPKG Specs / annotate

gcc/gcc.spec@4a34d7a82eab (annotated)

gcc/gcc.spec