scripts/build/cc/gcc.sh
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Oct 24 22:03:47 2010 +0200 (2010-10-24)
changeset 2161 3c648212298e
parent 2141 a09246191120
child 2162 3cec1d170ba4
permissions -rw-r--r--
Revert #a09246191120: cc/gcc: fix C++ headers location

This was intended as a fix for g++ not finding its headers,
but it breaks in othe horrible ways. So just revert it.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
     1 # This file adds the function to build the gcc C compiler
     2 # Copyright 2007 Yann E. MORIN
     3 # Licensed under the GPL v2. See COPYING in the root of this package
     4 
     5 # Download gcc
     6 do_cc_get() {
     7     # Ah! gcc folks are kind of 'different': they store the tarballs in
     8     # subdirectories of the same name! That's because gcc is such /crap/ that
     9     # it is such /big/ that it needs being splitted for distribution! Sad. :-(
    10     # Arrgghh! Some of those versions does not follow this convention:
    11     # gcc-3.3.3 lives in releases/gcc-3.3.3, while gcc-2.95.* isn't in a
    12     # subdirectory! You bastard!
    13     CT_GetFile "gcc-${CT_CC_VERSION}"                                                       \
    14                {ftp,http}://ftp.gnu.org/gnu/gcc{,{,/releases}/gcc-${CT_CC_VERSION}}         \
    15                ftp://ftp.irisa.fr/pub/mirrors/gcc.gnu.org/gcc/releases/gcc-${CT_CC_VERSION} \
    16                ftp://ftp.uvsq.fr/pub/gcc/snapshots/${CT_CC_VERSION}
    17 
    18     # Starting with GCC 4.3, ecj is used for Java, and will only be
    19     # built if the configure script finds ecj.jar at the top of the
    20     # GCC source tree, which will not be there unless we get it and
    21     # put it there ourselves
    22     if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y" ]; then
    23         CT_GetFile ecj-latest .jar ftp://gcc.gnu.org/pub/java   \
    24                                    ftp://sourceware.org/pub/java
    25     fi
    26 }
    27 
    28 # Extract gcc
    29 do_cc_extract() {
    30     CT_Extract "gcc-${CT_CC_VERSION}"
    31     CT_Patch "gcc" "${CT_CC_VERSION}"
    32 
    33     # Copy ecj-latest.jar to ecj.jar at the top of the GCC source tree
    34     if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y"                     \
    35          -a ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar"   \
    36        ]; then
    37         CT_DoExecLog ALL cp -v "${CT_TARBALLS_DIR}/ecj-latest.jar" "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar"
    38     fi
    39 }
    40 
    41 #------------------------------------------------------------------------------
    42 # Core gcc pass 1
    43 do_cc_core_pass_1() {
    44     # If we're building for bare metal, build the static core gcc,
    45     # with libgcc.
    46     # In case we're not bare metal and building a canadian compiler, do nothing
    47     # In case we're not bare metal, and we're NPTL, build the static core gcc.
    48     # In any other case, do nothing.
    49     case "${CT_BARE_METAL},${CT_CANADIAN},${CT_THREADS}" in
    50         y,*,*)  do_cc_core mode=static;;
    51         ,y,*)   ;;
    52         ,,nptl) do_cc_core mode=static;;
    53         *)      ;;
    54     esac
    55 }
    56 
    57 # Core gcc pass 2
    58 do_cc_core_pass_2() {
    59     # In case we're building for bare metal, do nothing, we already have
    60     # our compiler.
    61     # In case we're not bare metal and building a canadian compiler, do nothing
    62     # In case we're NPTL, build the shared core gcc and the target libgcc.
    63     # In any other case, build the static core gcc and, if using gcc-4.3+,
    64     # also build the target libgcc.
    65     case "${CT_BARE_METAL},${CT_CANADIAN},${CT_THREADS}" in
    66         y,*,*)  do_cc_core mode=baremetal build_libgcc=yes build_libstdcxx=yes;;
    67         ,y,*)   ;;
    68         ,,nptl)
    69             do_cc_core mode=shared build_libgcc=yes
    70             ;;
    71         ,,win32) do_cc_core mode=static build_libgcc=yes
    72             ;;
    73         *)  if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
    74                 do_cc_core mode=static build_libgcc=yes
    75             else
    76                 do_cc_core mode=static
    77             fi
    78             ;;
    79     esac
    80 }
    81 
    82 #------------------------------------------------------------------------------
    83 # Build core gcc
    84 # This function is used to build both the static and the shared core C conpiler,
    85 # with or without the target libgcc. We need to know wether:
    86 #  - we're building static, shared or bare metal: mode=[static|shared|baremetal]
    87 #  - we need to build libgcc or not             : build_libgcc=[yes|no]     (default: no)
    88 #  - we need to build libstdc++ or not          : build_libstdcxx=[yes|no]  (default: no)
    89 # Usage: do_cc_core_static mode=[static|shared|baremetal] build_libgcc=[yes|no]
    90 do_cc_core() {
    91     local mode
    92     local build_libgcc=no
    93     local build_libstdcxx=no
    94     local core_prefix_dir
    95     local lang_opt
    96     local tmp
    97     local -a extra_config
    98     local core_LDFLAGS
    99     local -a core_targets
   100 
   101     while [ $# -ne 0 ]; do
   102         eval "${1}"
   103         shift
   104     done
   105 
   106     lang_opt=c
   107     case "${mode}" in
   108         static)
   109             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
   110             extra_config+=("--with-newlib")
   111             extra_config+=("--enable-threads=no")
   112             extra_config+=("--disable-shared")
   113             copy_headers=y  # For baremetal, as there's no headers to copy,
   114                             # we copy an empty directory. So, who cares?
   115             ;;
   116         shared)
   117             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"
   118             extra_config+=("--enable-shared")
   119             copy_headers=y
   120             ;;
   121         baremetal)
   122             core_prefix_dir="${CT_PREFIX_DIR}"
   123             extra_config+=("--with-newlib")
   124             extra_config+=("--enable-threads=no")
   125             extra_config+=("--disable-shared")
   126             [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
   127             copy_headers=n
   128             ;;
   129         *)
   130             CT_Abort "Internal Error: 'mode' must be one of: 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'"
   131             ;;
   132     esac
   133 
   134     CT_DoStep INFO "Installing ${mode} core C compiler"
   135     mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
   136     cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
   137 
   138     # Bare metal delivers the core compiler as final compiler, so add version info and bugurl
   139     [ -n "${CT_CC_BUGURL}" ]     && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
   140     [ -n "${CT_CC_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
   141 
   142     if [ "${copy_headers}" = "y" ]; then
   143         CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
   144         CT_DoExecLog ALL cp -a "${CT_HEADERS_DIR}" "${core_prefix_dir}/${CT_TARGET}/include"
   145     fi
   146 
   147     CT_DoLog EXTRA "Configuring ${mode} core C compiler"
   148 
   149     for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
   150         eval tmp="\${CT_ARCH_WITH_${tmp}}"
   151         if [ -n "${tmp}" ]; then
   152             extra_config+=("${tmp}")
   153         fi
   154     done
   155     if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
   156         extra_config+=("--enable-__cxa_atexit")
   157     else
   158         extra_config+=("--disable-__cxa_atexit")
   159     fi
   160 
   161     # When companion libraries are build static (eg !shared),
   162     # the libstdc++ is not pulled automatically, although it
   163     # is needed. Shoe-horn it in our LDFLAGS
   164     # Ditto libm on some Fedora boxen
   165     if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
   166         core_LDFLAGS='-lstdc++ -lm'
   167     fi
   168     if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
   169         extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
   170         extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
   171     fi
   172     if [ "${CT_CC_GCC_USE_MPC}" = "y" ]; then
   173         extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
   174     fi
   175     if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then
   176         extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
   177         extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
   178     elif [ "${CT_CC_GCC_HAS_GRAPHITE}" = "y" ]; then
   179         extra_config+=("--with-ppl=no")
   180         extra_config+=("--with-cloog=no")
   181     fi
   182     if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then
   183         extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
   184     elif [ "${CT_CC_GCC_HAS_LTO}" = "y" ]; then
   185         extra_config+=("--with-libelf=no")
   186     fi
   187 
   188     if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
   189         extra_config+=("--enable-target-optspace")
   190     fi
   191 
   192     CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
   193 
   194     # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
   195     CC_FOR_BUILD="${CT_BUILD}-gcc"                  \
   196     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \
   197     LDFLAGS="${core_LDFLAGS}"                       \
   198     CT_DoExecLog ALL                                \
   199     "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure"  \
   200         --build=${CT_BUILD}                         \
   201         --host=${CT_HOST}                           \
   202         --target=${CT_TARGET}                       \
   203         --prefix="${core_prefix_dir}"               \
   204         --with-local-prefix="${CT_SYSROOT_DIR}"     \
   205         --disable-multilib                          \
   206         --disable-libmudflap                        \
   207         ${CC_CORE_SYSROOT_ARG}                      \
   208         "${extra_config[@]}"                        \
   209         --disable-nls                               \
   210         --enable-symvers=gnu                        \
   211         --enable-languages="${lang_opt}"            \
   212         ${CT_CC_CORE_EXTRA_CONFIG}
   213 
   214     if [ "${build_libgcc}" = "yes" ]; then
   215         # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
   216         # gcc/config/t-libunwind so -lc is removed from the link for
   217         # libgcc_s.so, as we do not have a target -lc yet.
   218         # This is not as ugly as it appears to be ;-) All symbols get resolved
   219         # during the glibc build, and we provide a proper libgcc_s.so for the
   220         # cross toolchain during the final gcc build.
   221         #
   222         # As we cannot modify the source tree, nor override SHLIB_LC itself
   223         # during configure or make, we have to edit the resultant
   224         # gcc/libgcc.mk itself to remove -lc from the link.
   225         # This causes us to have to jump through some hoops...
   226         #
   227         # To produce libgcc.mk to edit we firstly require libiberty.a,
   228         # so we configure then build it.
   229         # Next we have to configure gcc, create libgcc.mk then edit it...
   230         # So much easier if we just edit the source tree, but hey...
   231         if [ ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/BASE-VER" ]; then
   232             CT_DoExecLog ALL make configure-libiberty
   233             CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libiberty libiberty.a
   234             CT_DoExecLog ALL make configure-gcc configure-libcpp
   235             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp
   236         else
   237             CT_DoExecLog ALL make configure-gcc configure-libcpp configure-build-libiberty
   238             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp all-build-libiberty
   239         fi
   240         # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
   241         if [ -d "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/libdecnumber" ]; then
   242             CT_DoExecLog ALL make configure-libdecnumber
   243             CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libdecnumber libdecnumber.a
   244         fi
   245 
   246         # Starting with GCC 4.3, libgcc.mk is no longer built,
   247         # and libgcc.mvars is used instead.
   248 
   249         if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
   250             libgcc_rule="libgcc.mvars"
   251             core_targets=( gcc target-libgcc )
   252         else
   253             libgcc_rule="libgcc.mk"
   254             core_targets=( gcc )
   255         fi
   256 
   257         # On bare metal and canadian build the host-compiler is used when
   258         # actually the build-system compiler is required. Choose the correct
   259         # compilers for canadian build and use the defaults on other
   260         # configurations.
   261         if [ "${CT_BARE_METAL},${CT_CANADIAN}" = "y,y" ]; then
   262             repair_cc="CC_FOR_BUILD=${CT_BUILD}-gcc \
   263                        GCC_FOR_TARGET=${CT_TARGET}-gcc"
   264         else
   265             repair_cc=""
   266         fi
   267 
   268         CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule} \
   269                               ${repair_cc}
   270         sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
   271     else # build_libgcc
   272         core_targets=( gcc )
   273     fi   # ! build libgcc
   274     if [    "${build_libstdcxx}" = "yes"    \
   275          -a "${CT_CC_LANG_CXX}"  = "y"      \
   276        ]; then
   277         core_targets+=( target-libstdc++-v3 )
   278     fi
   279 
   280     CT_DoLog EXTRA "Building ${mode} core C compiler"
   281     CT_DoExecLog ALL make ${PARALLELMFLAGS} "${core_targets[@]/#/all-}"
   282 
   283     CT_DoLog EXTRA "Installing ${mode} core C compiler"
   284     CT_DoExecLog ALL make "${core_targets[@]/#/install-}"
   285 
   286     # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
   287     # to call the C compiler with the same, somewhat canonical name.
   288     # check whether compiler has an extension
   289     file="$( ls -1 "${core_prefix_dir}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
   290     [ -z "${file}" ] || ext=".${file##*.}"
   291     CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${core_prefix_dir}/bin/${CT_TARGET}-cc${ext}"
   292 
   293     CT_EndStep
   294 }
   295 
   296 #------------------------------------------------------------------------------
   297 # Build final gcc
   298 do_cc() {
   299     local -a extra_config
   300     local tmp
   301     local final_LDFLAGS
   302 
   303     # If building for bare metal, nothing to be done here, the static core conpiler is enough!
   304     [ "${CT_BARE_METAL}" = "y" ] && return 0
   305 
   306     CT_DoStep INFO "Installing final compiler"
   307 
   308     mkdir -p "${CT_BUILD_DIR}/build-cc"
   309     cd "${CT_BUILD_DIR}/build-cc"
   310 
   311     CT_DoLog EXTRA "Configuring final compiler"
   312 
   313     # Enable selected languages
   314     lang_opt="c"
   315     [ "${CT_CC_LANG_CXX}" = "y"      ] && lang_opt="${lang_opt},c++"
   316     [ "${CT_CC_LANG_FORTRAN}" = "y"  ] && lang_opt="${lang_opt},fortran"
   317     [ "${CT_CC_LANG_ADA}" = "y"      ] && lang_opt="${lang_opt},ada"
   318     [ "${CT_CC_LANG_JAVA}" = "y"     ] && lang_opt="${lang_opt},java"
   319     [ "${CT_CC_LANG_OBJC}" = "y"     ] && lang_opt="${lang_opt},objc"
   320     [ "${CT_CC_LANG_OBJCXX}" = "y"   ] && lang_opt="${lang_opt},obj-c++"
   321     CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
   322     CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
   323     CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
   324     CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
   325     lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
   326 
   327     extra_config+=("--enable-languages=${lang_opt}")
   328     extra_config+=("--disable-multilib")
   329     for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
   330         eval tmp="\${CT_ARCH_WITH_${tmp}}"
   331         if [ -n "${tmp}" ]; then
   332             extra_config+=("${tmp}")
   333         fi
   334     done
   335 
   336     [ "${CT_SHARED_LIBS}" = "y" ]                   || extra_config+=("--disable-shared")
   337     [ -n "${CT_CC_PKGVERSION}" ]                    && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
   338     [ -n "${CT_CC_BUGURL}" ]                        && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
   339     case "${CT_CC_GCC_SJLJ_EXCEPTIONS}" in
   340         y)  extra_config+=("--enable-sjlj-exceptions");;
   341         m)  ;;
   342         "") extra_config+=("--disable-sjlj-exceptions");;
   343     esac
   344     if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
   345         extra_config+=("--enable-__cxa_atexit")
   346     else
   347         extra_config+=("--disable-__cxa_atexit")
   348     fi
   349     if [ -n "${CC_ENABLE_CXX_FLAGS}" ]; then
   350         extra_config+=("--enable-cxx-flags=${CC_ENABLE_CXX_FLAGS}")
   351     fi
   352     if [ "${CT_CC_GCC_LIBMUDFLAP}" = "y" ]; then
   353         extra_config+=(--enable-libmudflap)
   354     else
   355         extra_config+=(--disable-libmudflap)
   356     fi
   357 
   358     if [ "${CT_CC_STATIC_LIBSTDCXX}" = "y" ]; then
   359         # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2
   360         # build script
   361         # FIXME: if the host gcc is gcc-4.5 then presumably we could use -static-libstdc++,
   362         # see http://gcc.gnu.org/ml/gcc-patches/2009-06/msg01635.html
   363         extra_config+=("--with-host-libstdcxx=-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm")
   364     elif [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
   365         # When companion libraries are build static (eg !shared),
   366         # the libstdc++ is not pulled automatically, although it
   367         # is needed. Shoe-horn it in our LDFLAGS
   368         # Ditto libm on some Fedora boxen
   369         final_LDFLAGS='-lstdc++ -lm'
   370     fi
   371     if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
   372         extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
   373         extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
   374     fi
   375     if [ "${CT_CC_GCC_USE_MPC}" = "y" ]; then
   376         extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
   377     fi
   378     if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then
   379         extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
   380         extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
   381     elif [ "${CT_CC_GCC_HAS_GRAPHITE}" = "y" ]; then
   382         extra_config+=("--with-ppl=no")
   383         extra_config+=("--with-cloog=no")
   384     fi
   385     if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then
   386         extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
   387     elif [ "${CT_CC_GCC_HAS_LTO}" = "y" ]; then
   388         extra_config+=("--with-libelf=no")
   389     fi
   390 
   391     if [ "${CT_THREADS}" = "none" ]; then
   392         extra_config+=("--disable-threads")
   393         if [ "${CT_CC_GCC_4_2_or_later}" = y ]; then
   394             extra_config+=("--disable-libgomp")
   395         fi
   396     else
   397         if [ "${CT_THREADS}" = "win32" ]; then
   398             extra_config+=("--enable-threads=win32")
   399             extra_config+=("--disable-win32-registry")
   400         else
   401             extra_config+=("--enable-threads=posix")
   402         fi
   403     fi
   404 
   405     if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
   406         extra_config+=("--enable-target-optspace")
   407     fi
   408     if [ "${CT_CC_GCC_DISABLE_PCH}" = "y" ]; then
   409         extra_config+=("--disable-libstdcxx-pch")
   410     fi
   411 
   412     CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
   413 
   414     # --enable-symvers=gnu really only needed for sh4 to work around a
   415     # detection problem only matters for gcc-3.2.x and later, I think.
   416     # --disable-nls to work around crash bug on ppc405, but also because
   417     # embedded systems don't really need message catalogs...
   418     CC_FOR_BUILD="${CT_BUILD}-gcc"                  \
   419     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \
   420     LDFLAGS="${final_LDFLAGS}"                      \
   421     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \
   422     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \
   423     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \
   424     CT_DoExecLog ALL                                \
   425     "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure"  \
   426         --build=${CT_BUILD}                         \
   427         --host=${CT_HOST}                           \
   428         --target=${CT_TARGET}                       \
   429         --prefix="${CT_PREFIX_DIR}"                 \
   430         ${CC_SYSROOT_ARG}                           \
   431         "${extra_config[@]}"                        \
   432         --with-local-prefix="${CT_SYSROOT_DIR}"     \
   433         --disable-nls                               \
   434         --enable-symvers=gnu                        \
   435         --enable-c99                                \
   436         --enable-long-long                          \
   437         ${CT_CC_EXTRA_CONFIG}
   438 
   439     if [ "${CT_CANADIAN}" = "y" ]; then
   440         CT_DoLog EXTRA "Building libiberty"
   441         CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
   442     fi
   443 
   444     CT_DoLog EXTRA "Building final compiler"
   445     CT_DoExecLog ALL make ${PARALLELMFLAGS} all
   446 
   447     CT_DoLog EXTRA "Installing final compiler"
   448     CT_DoExecLog ALL make install
   449 
   450     # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
   451     # to call the C compiler with the same, somewhat canonical name.
   452     # check whether compiler has an extension
   453     file="$( ls -1 "${CT_PREFIX_DIR}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
   454     [ -z "${file}" ] || ext=".${file##*.}"
   455     CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${CT_PREFIX_DIR}/bin/${CT_TARGET}-cc${ext}"
   456 
   457     CT_EndStep
   458 }