source $stdenv/setup source $substitute # Force gcc to use ld-wrapper.sh when calling ld. cflagsCompile="-B$out/bin/" if test -z "$nativeGlibc"; then # The "-B$glibc/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. The real solution is of course to prevent those paths # from being used by gcc in the first place. # 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). cflagsCompile="$cflagsCompile -B$glibc/lib/ -isystem $glibc/include" ldflags="$ldflags -L$glibc/lib" ldflagsBefore="-dynamic-linker $glibc/lib/ld-linux.so.2" fi if test -n "$nativeTools"; then gccPath="$nativePrefix/bin" ldPath="$nativePrefix/bin" else ldflags="$ldflags -L$gcc/lib" gccPath="$gcc/bin" ldPath="$binutils/bin" fi mkdir $out mkdir $out/bin mkdir $out/nix-support doSubstitute() { local src=$1 local dst=$2 substitute "$src" "$dst" \ --subst-var "out" \ --subst-var "shell" \ --subst-var "gcc" \ --subst-var "gccProg" \ --subst-var "binutils" \ --subst-var "glibc" \ --subst-var "cflagsCompile" \ --subst-var "cflagsLink" \ --subst-var "ldflags" \ --subst-var "ldflagsBefore" \ --subst-var-by "ld" "$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 $out/bin/$cross-gcc $gccPath/$cross-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 $out/bin/f77 # Make a wrapper around the linker. doSubstitute "$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 > $out/nix-support/orig-gcc test -n "$glibc" && echo $glibc > $out/nix-support/orig-glibc doSubstitute "$addFlags" "$out/nix-support/add-flags" doSubstitute "$setupHook" "$out/nix-support/setup-hook" cp -p $utils $out/nix-support/utils