source $stdenv/setup oldOpts="$(shopt -po nounset)" || true set -euo pipefail export NIX_FIXINC_DUMMY="$NIX_BUILD_TOP/dummy" mkdir "$NIX_FIXINC_DUMMY" if test "$staticCompiler" = "1"; then EXTRA_LDFLAGS="-static" else EXTRA_LDFLAGS="-Wl,-rpath,${!outputLib}/lib" fi # GCC interprets empty paths as ".", which we don't want. if test -z "${CPATH-}"; then unset CPATH; fi if test -z "${LIBRARY_PATH-}"; then unset LIBRARY_PATH; fi echo "\$CPATH is \`${CPATH-}'" echo "\$LIBRARY_PATH is \`${LIBRARY_PATH-}'" if test "$noSysDirs" = "1"; then declare \ EXTRA_BUILD_FLAGS EXTRA_FLAGS EXTRA_TARGET_FLAGS \ EXTRA_BUILD_LDFLAGS EXTRA_TARGET_LDFLAGS # Extract flags from Bintools Wrappers for pre in 'BUILD_' ''; do curBintools="NIX_${pre}BINTOOLS" declare -a extraLDFlags=() if [[ -e "${!curBintools}/nix-support/orig-libc" ]]; then # Figure out what extra flags when linking to pass to the gcc # compilers being generated to make sure that they use our libc. extraLDFlags=($(< "${!curBintools}/nix-support/libc-ldflags") $(< "${!curBintools}/nix-support/libc-ldflags-before" || true)) # The path to the Libc binaries such as `crti.o'. libc_libdir="$(< "${!curBintools}/nix-support/orig-libc")/lib" else # Hack: support impure environments. extraLDFlags=("-L/usr/lib64" "-L/usr/lib") libc_libdir="/usr/lib" fi extraLDFlags=("-L$libc_libdir" "-rpath" "$libc_libdir" "${extraLDFlags[@]}") for i in "${extraLDFlags[@]}"; do declare EXTRA_${pre}LDFLAGS+=" -Wl,$i" done done # Extract flags from CC Wrappers for pre in 'BUILD_' ''; do curCC="NIX_${pre}CC" curFIXINC="NIX_${pre}FIXINC_DUMMY" declare -a extraFlags=() if [[ -e "${!curCC}/nix-support/orig-libc" ]]; then # Figure out what extra compiling flags to pass to the gcc compilers # being generated to make sure that they use our libc. extraFlags=($(< "${!curCC}/nix-support/libc-cflags")) # The path to the Libc headers libc_devdir="$(< "${!curCC}/nix-support/orig-libc-dev")" # Use *real* header files, otherwise a limits.h is generated that # does not include Libc's limits.h (notably missing SSIZE_MAX, # which breaks the build). declare NIX_${pre}FIXINC_DUMMY="$libc_devdir/include" else # Hack: support impure environments. extraFlags=("-isystem" "/usr/include") declare NIX_${pre}FIXINC_DUMMY=/usr/include fi extraFlags=("-I${!curFIXINC}" "${extraFlags[@]}") # BOOT_CFLAGS defaults to `-g -O2'; since we override it below, make # sure to explictly add them so that files compiled with the bootstrap # compiler are optimized and (optionally) contain debugging information # (info "(gccinstall) Building"). if test -n "${dontStrip-}"; then extraFlags=("-O2" "-g" "${extraFlags[@]}") else # Don't pass `-g' at all; this saves space while building. extraFlags=("-O2" "${extraFlags[@]}") fi declare EXTRA_${pre}FLAGS="${extraFlags[*]}" done if test -z "${targetConfig-}"; then # host = target, so the flags are the same EXTRA_TARGET_FLAGS="$EXTRA_FLAGS" EXTRA_TARGET_LDFLAGS="$EXTRA_LDFLAGS" fi # CFLAGS_FOR_TARGET are needed for the libstdc++ configure script to find # the startfiles. # FLAGS_FOR_TARGET are needed for the target libraries to receive the -Bxxx # for the startfiles. makeFlagsArray+=( "BUILD_SYSTEM_HEADER_DIR=$NIX_BUILD_FIXINC_DUMMY" "SYSTEM_HEADER_DIR=$NIX_BUILD_FIXINC_DUMMY" "NATIVE_SYSTEM_HEADER_DIR=$NIX_FIXINC_DUMMY" "LDFLAGS_FOR_BUILD=$EXTRA_BUILD_LDFLAGS" #"LDFLAGS=$EXTRA_LDFLAGS" "LDFLAGS_FOR_TARGET=$EXTRA_TARGET_LDFLAGS" "CFLAGS_FOR_BUILD=$EXTRA_BUILD_FLAGS $EXTRA_BUILD_LDFLAGS" "CXXFLAGS_FOR_BUILD=$EXTRA_BUILD_FLAGS $EXTRA_BUILD_LDFLAGS" "FLAGS_FOR_BUILD=$EXTRA_BUILD_FLAGS $EXTRA_BUILD_LDFLAGS" # It seems there is a bug in GCC 5 #"CFLAGS=$EXTRA_FLAGS $EXTRA_LDFLAGS" #"CXXFLAGS=$EXTRA_FLAGS $EXTRA_LDFLAGS" "CFLAGS_FOR_TARGET=$EXTRA_TARGET_FLAGS $EXTRA_TARGET_LDFLAGS" "CXXFLAGS_FOR_TARGET=$EXTRA_TARGET_FLAGS $EXTRA_TARGET_LDFLAGS" "FLAGS_FOR_TARGET=$EXTRA_TARGET_FLAGS $EXTRA_TARGET_LDFLAGS" ) if test -z "${targetConfig-}"; then makeFlagsArray+=( "BOOT_CFLAGS=$EXTRA_FLAGS $EXTRA_LDFLAGS" "BOOT_LDFLAGS=$EXTRA_TARGET_FLAGS $EXTRA_TARGET_LDFLAGS" ) fi if test "$crossStageStatic" == 1; then # We don't want the gcc build to assume there will be a libc providing # limits.h in this stagae makeFlagsArray+=( 'LIMITS_H_TEST=false' ) else makeFlagsArray+=( 'LIMITS_H_TEST=true' ) fi fi if test -n "${targetConfig-}"; then # The host strip will destroy some important details of the objects dontStrip=1 fi eval "$oldOpts" providedPreConfigure="$preConfigure"; preConfigure() { if test -n "$newlibSrc"; then tar xvf "$newlibSrc" -C .. ln -s ../newlib-*/newlib newlib # Patch to get armvt5el working: sed -i -e 's/ arm)/ arm*)/' newlib/configure.host fi # Bug - they packaged zlib if test -d "zlib"; then # This breaks the build without-headers, which should build only # the target libgcc as target libraries. # See 'configure:5370' rm -Rf zlib fi if test -f "$NIX_CC/nix-support/orig-libc"; then # Patch the configure script so it finds glibc headers. It's # important for example in order not to get libssp built, # because its functionality is in glibc already. sed -i \ -e "s,glibc_header_dir=/usr/include,glibc_header_dir=$libc_dev/include", \ gcc/configure fi if test -n "$crossMingw" -a -n "$crossStageStatic"; then mkdir -p ../mingw # --with-build-sysroot expects that: cp -R $libcCross/include ../mingw configureFlags="$configureFlags --with-build-sysroot=`pwd`/.." fi # Eval the preConfigure script from nix expression. eval "$providedPreConfigure" # Perform the build in a different directory. mkdir ../build cd ../build configureScript=../$sourceRoot/configure } postConfigure() { # Don't store the configure flags in the resulting executables. sed -e '/TOPLEVEL_CONFIGURE_ARGUMENTS=/d' -i Makefile } preInstall() { # Make ‘lib64’ symlinks to ‘lib’. if [ -n "$is64bit" -a -z "$enableMultilib" ]; then mkdir -p "$out/lib" ln -s lib "$out/lib64" mkdir -p "$lib/lib" ln -s lib "$lib/lib64" fi } postInstall() { # Move runtime libraries to $lib. moveToOutput "lib/lib*.so*" "$lib" moveToOutput "lib/lib*.la" "$lib" moveToOutput "lib/lib*.dylib" "$lib" moveToOutput "share/gcc-*/python" "$lib" for i in "$lib"/lib/*.{la,py}; do substituteInPlace "$i" --replace "$out" "$lib" done if [ -n "$enableMultilib" ]; then moveToOutput "lib64/lib*.so*" "$lib" moveToOutput "lib64/lib*.la" "$lib" moveToOutput "lib64/lib*.dylib" "$lib" for i in "$lib"/lib64/*.{la,py}; do substituteInPlace "$i" --replace "$out" "$lib" done fi # Remove `fixincl' to prevent a retained dependency on the # previous gcc. rm -rf $out/libexec/gcc/*/*/install-tools rm -rf $out/lib/gcc/*/*/install-tools # More dependencies with the previous gcc or some libs (gccbug stores the build command line) rm -rf $out/bin/gccbug if type "patchelf"; then # Take out the bootstrap-tools from the rpath, as it's not needed at all having $out for i in $(find "$out"/libexec/gcc/*/*/* -type f -a \! -name '*.la'); do PREV_RPATH=`patchelf --print-rpath "$i"` NEW_RPATH=`echo "$PREV_RPATH" | sed 's,:[^:]*bootstrap-tools/lib,,g'` patchelf --set-rpath "$NEW_RPATH" "$i" && echo OK done # For some reason the libs retain RPATH to $out for i in "$lib"/lib/{libtsan,libasan,libubsan}.so.*.*.*; do PREV_RPATH=`patchelf --print-rpath "$i"` NEW_RPATH=`echo "$PREV_RPATH" | sed "s,:${out}[^:]*,,g"` patchelf --set-rpath "$NEW_RPATH" "$i" && echo OK done fi if type "install_name_tool"; then for i in "$lib"/lib/*.*.dylib; do install_name_tool -id "$i" "$i" || true for old_path in $(otool -L "$i" | grep "$out" | awk '{print $1}'); do new_path=`echo "$old_path" | sed "s,$out,$lib,"` install_name_tool -change "$old_path" "$new_path" "$i" || true done done fi # Get rid of some "fixed" header files rm -rfv $out/lib/gcc/*/*/include-fixed/{root,linux} # Replace hard links for i686-pc-linux-gnu-gcc etc. with symlinks. for i in $out/bin/*-gcc*; do if cmp -s $out/bin/gcc $i; then ln -sfn gcc $i fi done for i in $out/bin/c++ $out/bin/*-c++* $out/bin/*-g++*; do if cmp -s $out/bin/g++ $i; then ln -sfn g++ $i fi done # Two identical man pages are shipped (moving and compressing is done later) ln -sf gcc.1 "$out"/share/man/man1/g++.1 } genericBuild