88 lines
2.4 KiB
Bash
88 lines
2.4 KiB
Bash
source $stdenv/setup
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export NIX_FIXINC_DUMMY=$NIX_BUILD_TOP/dummy
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mkdir $NIX_FIXINC_DUMMY
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# libstdc++ needs this; otherwise it will use /lib/cpp, which is a Bad
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# Thing.
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export CPP="gcc -E"
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export CXXCPP="gcc -E"
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if test "$noSysDirs" = "1"; then
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if test -e $NIX_GCC/nix-support/orig-libc; then
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# Figure out what extra flags to pass to the gcc compilers
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# being generated to make sure that they use our glibc.
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extraCFlags="$(cat $NIX_GCC/nix-support/libc-cflags)"
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extraLDFlags="$(cat $NIX_GCC/nix-support/libc-ldflags) $(cat $NIX_GCC/nix-support/libc-ldflags-before)"
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# Use *real* header files, otherwise a limits.h is generated
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# that does not include Glibc's limits.h (notably missing
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# SSIZE_MAX, which breaks the build).
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export NIX_FIXINC_DUMMY=$(cat $NIX_GCC/nix-support/orig-libc)/include
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else
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# Hack: support impure environments.
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extraCFlags="-isystem /usr/include"
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extraLDFlags="-L/usr/lib64 -L/usr/lib"
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export NIX_FIXINC_DUMMY=/usr/include
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fi
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extraCFlags="-g0 $extraCFlags"
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extraLDFlags="--strip-debug $extraLDFlags"
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export NIX_EXTRA_CFLAGS=$extraCFlags
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for i in $extraLDFlags; do
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export NIX_EXTRA_LDFLAGS="$NIX_EXTRA_LDFLAGS -Wl,$i"
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done
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export CFLAGS=$extraCFlags
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export CXXFLAGS=$extraCFlags
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makeFlagsArray=( \
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NATIVE_SYSTEM_HEADER_DIR="$NIX_FIXINC_DUMMY" \
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SYSTEM_HEADER_DIR="$NIX_FIXINC_DUMMY" \
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LIMITS_H_TEST=true \
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X_CFLAGS="$NIX_EXTRA_CFLAGS $NIX_EXTRA_LDFLAGS" \
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LDFLAGS="$NIX_EXTRA_CFLAGS $NIX_EXTRA_LDFLAGS" \
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LDFLAGS_FOR_TARGET="$NIX_EXTRA_CFLAGS $NIX_EXTRA_LDFLAGS" \
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)
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fi
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preConfigure=preConfigure
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preConfigure() {
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# Perform the build in a different directory.
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mkdir ../build
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cd ../build
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configureScript=../$sourceRoot/configure
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}
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postInstall=postInstall
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postInstall() {
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# Remove precompiled headers for now. They are very big and
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# probably not very useful yet.
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find $out/include -name "*.gch" -exec rm -rf {} \; -prune
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# Remove `fixincl' to prevent a retained dependency on the
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# previous gcc.
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rm -rf $out/libexec/gcc/*/*/install-tools
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# Get rid of some "fixed" header files
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rm -rf $out/lib/gcc/*/*/include/root
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}
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if test -z "$profiledCompiler"; then
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buildFlags="bootstrap"
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else
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buildFlags="profiledbootstrap"
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fi
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genericBuild
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