nixpkgs/pkgs/development/compilers/gcc/4.9/builder.sh
John Wiegley 28b6fb61e6 Change occurrences of gcc to the more general cc
This is done for the sake of Yosemite, which does not have gcc, and yet
this change is also compatible with Linux.
2014-12-26 11:06:21 -06:00

246 lines
8.7 KiB
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source $stdenv/setup
export NIX_FIXINC_DUMMY=$NIX_BUILD_TOP/dummy
mkdir $NIX_FIXINC_DUMMY
if test "$staticCompiler" = "1"; then
EXTRA_LDFLAGS="-static"
else
EXTRA_LDFLAGS=""
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
if test -e $NIX_CC/nix-support/orig-libc; then
# Figure out what extra flags to pass to the gcc compilers
# being generated to make sure that they use our glibc.
extraFlags="$(cat $NIX_CC/nix-support/libc-cflags)"
extraLDFlags="$(cat $NIX_CC/nix-support/libc-ldflags) $(cat $NIX_CC/nix-support/libc-ldflags-before)"
# Use *real* header files, otherwise a limits.h is generated
# that does not include Glibc's limits.h (notably missing
# SSIZE_MAX, which breaks the build).
export NIX_FIXINC_DUMMY=$(cat $NIX_CC/nix-support/orig-libc)/include
# The path to the Glibc binaries such as `crti.o'.
glibc_libdir="$(cat $NIX_CC/nix-support/orig-libc)/lib"
else
# Hack: support impure environments.
extraFlags="-isystem /usr/include"
extraLDFlags="-L/usr/lib64 -L/usr/lib"
glibc_libdir="/usr/lib"
export NIX_FIXINC_DUMMY=/usr/include
fi
extraFlags="-I$NIX_FIXINC_DUMMY $extraFlags"
extraLDFlags="-L$glibc_libdir -rpath $glibc_libdir $extraLDFlags"
# BOOT_CFLAGS defaults to `-g -O2'; since we override it below,
# make sure to explictly add them so that files compiled with the
# bootstrap compiler are optimized and (optionally) contain
# debugging information (info "(gccinstall) Building").
if test -n "$dontStrip"; then
extraFlags="-O2 -g $extraFlags"
else
# Don't pass `-g' at all; this saves space while building.
extraFlags="-O2 $extraFlags"
fi
EXTRA_FLAGS="$extraFlags"
for i in $extraLDFlags; do
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,$i"
done
if test -n "$targetConfig"; then
# Cross-compiling, we need gcc not to read ./specs in order to build
# the g++ compiler (after the specs for the cross-gcc are created).
# Having LIBRARY_PATH= makes gcc read the specs from ., and the build
# breaks. Having this variable comes from the default.nix code to bring
# gcj in.
unset LIBRARY_PATH
unset CPATH
if test -z "$crossStageStatic"; then
EXTRA_TARGET_CFLAGS="-B${libcCross}/lib -idirafter ${libcCross}/include"
EXTRA_TARGET_LDFLAGS="-Wl,-L${libcCross}/lib -Wl,-rpath,${libcCross}/lib -Wl,-rpath-link,${libcCross}/lib"
fi
else
if test -z "$NIX_CC_CROSS"; then
EXTRA_TARGET_CFLAGS="$EXTRA_FLAGS"
EXTRA_TARGET_CXXFLAGS="$EXTRA_FLAGS"
EXTRA_TARGET_LDFLAGS="$EXTRA_LDFLAGS"
else
# This the case of cross-building the gcc.
# We need special flags for the target, different than those of the build
# Assertion:
test -e $NIX_CC_CROSS/nix-support/orig-libc
# Figure out what extra flags to pass to the gcc compilers
# being generated to make sure that they use our glibc.
extraFlags="$(cat $NIX_CC_CROSS/nix-support/libc-cflags)"
extraLDFlags="$(cat $NIX_CC_CROSS/nix-support/libc-ldflags) $(cat $NIX_CC_CROSS/nix-support/libc-ldflags-before)"
# Use *real* header files, otherwise a limits.h is generated
# that does not include Glibc's limits.h (notably missing
# SSIZE_MAX, which breaks the build).
NIX_FIXINC_DUMMY_CROSS=$(cat $NIX_CC_CROSS/nix-support/orig-libc)/include
# The path to the Glibc binaries such as `crti.o'.
glibc_dir="$(cat $NIX_CC_CROSS/nix-support/orig-libc)"
glibc_libdir="$glibc_dir/lib"
configureFlags="$configureFlags --with-native-system-header-dir=$glibc_dir/include"
extraFlags="-I$NIX_FIXINC_DUMMY_CROSS $extraFlags"
extraLDFlags="-L$glibc_libdir -rpath $glibc_libdir $extraLDFlags"
EXTRA_TARGET_CFLAGS="$extraFlags"
for i in $extraLDFlags; do
EXTRA_TARGET_LDFLAGS="$EXTRA_TARGET_LDFLAGS -Wl,$i"
done
fi
fi
# CFLAGS_FOR_TARGET are needed for the libstdc++ configure script to find
# the startfiles.
# FLAGS_FOR_TARGET are needed for the target libraries to receive the -Bxxx
# for the startfiles.
makeFlagsArray=( \
"${makeFlagsArray[@]}" \
NATIVE_SYSTEM_HEADER_DIR="$NIX_FIXINC_DUMMY" \
SYSTEM_HEADER_DIR="$NIX_FIXINC_DUMMY" \
CFLAGS_FOR_BUILD="$EXTRA_FLAGS $EXTRA_LDFLAGS" \
CXXFLAGS_FOR_BUILD="$EXTRA_FLAGS $EXTRA_LDFLAGS" \
CFLAGS_FOR_TARGET="$EXTRA_TARGET_CFLAGS $EXTRA_TARGET_LDFLAGS" \
CXXFLAGS_FOR_TARGET="$EXTRA_TARGET_CFLAGS $EXTRA_TARGET_LDFLAGS" \
FLAGS_FOR_TARGET="$EXTRA_TARGET_CFLAGS $EXTRA_TARGET_LDFLAGS" \
LDFLAGS_FOR_BUILD="$EXTRA_FLAGS $EXTRA_LDFLAGS" \
LDFLAGS_FOR_TARGET="$EXTRA_TARGET_LDFLAGS $EXTRA_TARGET_LDFLAGS" \
)
if test -z "$targetConfig"; then
makeFlagsArray=( \
"${makeFlagsArray[@]}" \
BOOT_CFLAGS="$EXTRA_FLAGS $EXTRA_LDFLAGS" \
BOOT_LDFLAGS="$EXTRA_TARGET_CFLAGS $EXTRA_TARGET_LDFLAGS" \
)
fi
if test -n "$targetConfig" -a "$crossStageStatic" == 1; then
# We don't want the gcc build to assume there will be a libc providing
# limits.h in this stagae
makeFlagsArray=( \
"${makeFlagsArray[@]}" \
LIMITS_H_TEST=false \
)
else
makeFlagsArray=( \
"${makeFlagsArray[@]}" \
LIMITS_H_TEST=true \
)
fi
fi
if test -n "$targetConfig"; then
# The host strip will destroy some important details of the objects
dontStrip=1
fi
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.
glibc_headers="$(cat $NIX_CC/nix-support/orig-libc)/include"
sed -i \
-e "s,glibc_header_dir=/usr/include,glibc_header_dir=$glibc_headers", \
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 $providedPreConfigure;
env;
# Perform the build in a different directory.
mkdir ../build
cd ../build
configureScript=../$sourceRoot/configure
}
postConfigure() {
# Don't store the configure flags in the resulting executables.
sed -e '/TOPLEVEL_CONFIGURE_ARGUMENTS=/d' -i Makefile
}
postInstall() {
# Remove precompiled headers for now. They are very big and
# probably not very useful yet.
find $out/include -name "*.gch" -exec rm -rf {} \; -prune
# 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
# Take out the bootstrap-tools from the rpath, as it's not needed at all having $out
for i in $out/libexec/gcc/*/*/*; do
if PREV_RPATH=`patchelf --print-rpath $i`; then
patchelf --set-rpath `echo $PREV_RPATH | sed 's,:[^:]*bootstrap-tools/lib,,'` $i
fi
done
# Get rid of some "fixed" header files
rm -rf $out/lib/gcc/*/*/include/root
# 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++ $i
fi
done
eval "$postInstallGhdl"
}
genericBuild