source $stdenv/setup ensureDir $out/bin ensureDir $out/nix-support if test -z "$nativeLibc"; then dynamicLinker="$libc/lib/$dynamicLinker" echo $dynamicLinker > $out/nix-support/dynamic-linker # The "-B$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.) echo "-B$libc/lib/ -isystem $libc/include" > $out/nix-support/libc-cflags echo "-L$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$gcc/lib" echo "$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 echo "$gccCFlags" > $out/nix-support/gcc-cflags gccPath="$gcc/bin" ldPath="$binutils/bin" fi doSubstitute() { local src=$1 local dst=$2 substitute "$src" "$dst" \ --subst-var "out" \ --subst-var "shell" \ --subst-var "gcc" \ --subst-var "gccProg" \ --subst-var "binutils" \ --subst-var "libc" \ --subst-var-by "ld" "$ldPath/ld" } # Make wrapper scripts around gcc, g++, and g77. Also make symlinks # cc, c++, and f77. mkGccWrapper() { local dst=$1 local src=$2 if ! test -f "$src"; then echo "$src does not exist (skipping)" return fi gccProg="$src" doSubstitute "$gccWrapper" "$dst" chmod +x "$dst" } mkGccWrapper $out/bin/gcc $gccPath/gcc ln -s gcc $out/bin/cc mkGccWrapper $out/bin/g++ $gccPath/g++ ln -s g++ $out/bin/c++ mkGccWrapper $out/bin/g77 $gccPath/g77 ln -s g77 $out/bin/f77 # 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