1 files changed, 194 insertions, 0 deletions
diff --git a/pkgs/build-support/gcc-wrapper/buildergo.sh b/pkgs/build-support/gcc-wrapper/buildergo.sh
new file mode 100644
index 000000000000..cb6bfd7f0517
--- /dev/null
+++ b/pkgs/build-support/gcc-wrapper/buildergo.sh
@@ -0,0 +1,194 @@
+source $stdenv/setup
+
+
+mkdir -p $out/bin
+mkdir -p $out/nix-support
+
+
+if test -z "$nativeLibc"; then
+    dynamicLinker="$libc/lib/$dynamicLinker"
+    echo $dynamicLinker > $out/nix-support/dynamic-linker
+
+    if test -e $libc/lib/32/ld-linux.so.2; then
+        echo $libc/lib/32/ld-linux.so.2 > $out/nix-support/dynamic-linker-m32
+    fi
+
+    # The "-B$libc/lib/" flag is a quick hack to force gcc to link
+    # against the crt1.o from our own glibc, rather than the one in
+    # /usr/lib.  (This is only an issue when using an `impure'
+    # compiler/linker, i.e., one that searches /usr/lib and so on.)
+    #
+    # Unfortunately, setting -B appears to override the default search
+    # path. Thus, the gcc-specific "../includes-fixed" directory is
+    # now longer searched and glibc's <limits.h> header fails to
+    # compile, because it uses "#include_next <limits.h>" to find the
+    # limits.h file in ../includes-fixed. To remedy the problem,
+    # another -idirafter is necessary to add that directory again.
+    echo "-B$libc/lib/ -idirafter $libc/include -idirafter $gcc/lib/gcc/*/*/include-fixed" > $out/nix-support/libc-cflags
+
+    echo "-L$libc/lib" > $out/nix-support/libc-ldflags
+
+    # The dynamic linker is passed in `ldflagsBefore' to allow
+    # explicit overrides of the dynamic linker by callers to gcc/ld
+    # (the *last* value counts, so ours should come first).
+    echo "-dynamic-linker $dynamicLinker" > $out/nix-support/libc-ldflags-before
+fi
+
+if test -n "$nativeTools"; then
+    gccPath="$nativePrefix/bin"
+    ldPath="$nativePrefix/bin"
+else
+    if test -e "$gcc/lib64"; then
+        gccLDFlags="$gccLDFlags -L$gcc/lib64"
+    fi
+    gccLDFlags="$gccLDFlags -L$gcc/lib"
+    if [ -n "$langVhdl" ]; then
+        gccLDFlags="$gccLDFlags -L$zlib/lib"
+    fi
+    echo "$gccLDFlags" > $out/nix-support/gcc-ldflags
+
+    # GCC shows $gcc/lib in `gcc -print-search-dirs', but not
+    # $gcc/lib64 (even though it does actually search there...)..
+    # This confuses libtool.  So add it to the compiler tool search
+    # path explicitly.
+    if test -e "$gcc/lib64"; then
+        gccCFlags="$gccCFlags -B$gcc/lib64"
+    fi
+
+    # Find the gcc libraries path (may work only without multilib)
+    if [ -n "$langAda" ]; then
+        basePath=`echo $gcc/lib/*/*/*`
+        gccCFlags="$gccCFlags -B$basePath -I$basePath/adainclude"
+
+        gnatCFlags="-aI$basePath/adainclude -aO$basePath/adalib"
+        echo "$gnatCFlags" > $out/nix-support/gnat-cflags
+    fi
+    echo "$gccCFlags" > $out/nix-support/gcc-cflags
+    
+    gccPath="$gcc/bin"
+    ldPath="$binutils/bin"
+fi
+
+
+doSubstitute() {
+    local src=$1
+    local dst=$2
+    # Can't use substitute() here, because replace may not have been
+    # built yet (in the bootstrap).
+    sed \
+        -e "s^@out@^$out^g" \
+        -e "s^@shell@^$shell^g" \
+        -e "s^@gcc@^$gcc^g" \
+        -e "s^@gccProg@^$gccProg^g" \
+        -e "s^@gnatProg@^$gnatProg^g" \
+        -e "s^@gnatlinkProg@^$gnatlinkProg^g" \
+        -e "s^@binutils@^$binutils^g" \
+        -e "s^@coreutils@^$coreutils^g" \
+        -e "s^@libc@^$libc^g" \
+        -e "s^@ld@^$ldPath/ld^g" \
+        < "$src" > "$dst" 
+}
+
+
+# Make wrapper scripts around gcc, g++, and gfortran.  Also make symlinks
+# cc, c++, and f77.
+mkGccWrapper() {
+    local dst=$1
+    local src=$2
+
+    if ! test -f "$src"; then
+        echo "$src does not exist (skipping)"
+        return 1
+    fi
+
+    gccProg="$src"
+    doSubstitute "$gccWrapper" "$dst"
+    chmod +x "$dst"
+}
+
+mkGnatWrapper() {
+    local dst=$1
+    local src=$2
+
+    if ! test -f "$src"; then
+        echo "$src does not exist (skipping)"
+        return 1
+    fi
+
+    gnatProg="$src"
+    doSubstitute "$gnatWrapper" "$dst"
+    chmod +x "$dst"
+}
+
+mkGnatLinkWrapper() {
+    local dst=$1
+    local src=$2
+
+    if ! test -f "$src"; then
+        echo "$src does not exist (skipping)"
+        return 1
+    fi
+
+    gnatlinkProg="$src"
+    doSubstitute "$gnatlinkWrapper" "$dst"
+    chmod +x "$dst"
+}
+
+if mkGccWrapper $out/bin/gcc $gccPath/gcc
+then
+    ln -sv gcc $out/bin/cc
+fi
+
+if mkGccWrapper $out/bin/g++ $gccPath/g++
+then
+    ln -sv g++ $out/bin/c++
+fi
+
+if mkGccWrapper $out/bin/gfortran $gccPath/gfortran
+then
+    ln -sv gfortran $out/bin/g77
+    ln -sv gfortran $out/bin/f77
+fi
+
+mkGccWrapper $out/bin/gcj $gccPath/gcj || true
+
+mkGccWrapper $out/bin/gccgo $gccPath/gccgo || true
+
+mkGccWrapper $out/bin/gnatgcc $gccPath/gnatgcc || true
+mkGnatWrapper $out/bin/gnatmake $gccPath/gnatmake || true
+mkGnatWrapper $out/bin/gnatbind $gccPath/gnatbind || true
+mkGnatLinkWrapper $out/bin/gnatlink $gccPath/gnatlink || true
+
+if [ -f $gccPath/ghdl ]; then
+    ln -sf $gccPath/ghdl $out/bin/ghdl
+fi
+
+# Create a symlink to as (the assembler).  This is useful when a
+# gcc-wrapper is installed in a user environment, as it ensures that
+# the right assembler is called.
+ln -s $ldPath/as $out/bin/as
+
+
+# Make a wrapper around the linker.
+doSubstitute "$ldWrapper" "$out/bin/ld"
+chmod +x "$out/bin/ld"
+
+
+# Emit a setup hook.  Also store the path to the original GCC and
+# Glibc.
+test -n "$gcc" && echo $gcc > $out/nix-support/orig-gcc
+test -n "$libc" && echo $libc > $out/nix-support/orig-libc
+
+doSubstitute "$addFlags" "$out/nix-support/add-flags.sh"
+
+doSubstitute "$setupHook" "$out/nix-support/setup-hook"
+
+cp -p $utils $out/nix-support/utils.sh
+
+
+# Propagate the wrapped gcc so that if you install the wrapper, you get
+# tools like gcov, the manpages, etc. as well (including for binutils
+# and Glibc).
+if test -z "$nativeTools"; then
+    echo $gcc $binutils $libc > $out/nix-support/propagated-user-env-packages
+fi