termux-packages/packages/ghc/build.sh

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TERMUX_PKG_HOMEPAGE=https://www.haskell.org/ghc/
TERMUX_PKG_DESCRIPTION="The Glasgow Haskell Compilation system"
TERMUX_PKG_LICENSE="BSD 2-Clause, BSD 3-Clause, LGPL-2.1"
TERMUX_PKG_MAINTAINER="@termux"
TERMUX_PKG_VERSION=8.10.1
TERMUX_PKG_REVISION=6
TERMUX_PKG_SRCURL=http://downloads.haskell.org/~ghc/${TERMUX_PKG_VERSION}/ghc-${TERMUX_PKG_VERSION}-src.tar.xz
TERMUX_PKG_SHA256=4e3b07f83a266b3198310f19f71e371ebce97c769b14f0d688f4cbf2a2a1edf5
TERMUX_PKG_DEPENDS="binutils, clang, iconv, libffi, llvm, ncurses"
TERMUX_PKG_BUILD_IN_SRC=true
TERMUX_PKG_NO_STATICSPLIT=true
TERMUX_PKG_EXTRA_CONFIGURE_ARGS=" --disable-ld-override --build=x86_64-unknown-linux --host=x86_64-unknown-linux"
TERMUX_PKG_BLACKLISTED_ARCHES="arm"
DYNAMIC_GHC_PROGRAMS=NO
termux_step_pre_configure() {
termux_setup_ghc
_WRAPPER_BIN=$TERMUX_PKG_BUILDDIR/_wrapper/bin
mkdir -p $_WRAPPER_BIN
_WRAPPER_AR=$_WRAPPER_BIN/$TERMUX_HOST_PLATFORM-ar
cat > $_WRAPPER_AR <<-EOF
#!$(command -v sh)
exec $(command -v $AR) "\$@"
EOF
chmod 0700 $_WRAPPER_AR
for cmd in llc opt; do
local wrapper="$_WRAPPER_BIN/$cmd"
cat > "$wrapper" <<-EOF
#!$(command -v sh)
exec /usr/lib/llvm-10/bin/${cmd} "\$@"
EOF
chmod 0700 "$wrapper"
done
export PATH=$_WRAPPER_BIN:$PATH
TERMUX_PKG_EXTRA_CONFIGURE_ARGS+=" --target=${TERMUX_HOST_PLATFORM}"
# After stage 0, cabal passes a host string to the libraries' configure scripts that isn't valid.
# We set one ourselves anyway, so this simply isn't needed.
sed -i 's/maybeHostFlag = i/maybeHostFlag = [] -- i/' libraries/Cabal/Cabal/Distribution/Simple.hs
# Android will only run PIE executables, so --no-pie, like GHC suggests, is out. GHC relies on relocations.
# Combine PIE and -Wl,-r together, and the linker will tell you those flags are mutually exclusive.
# This poses a problem as we need both. If you let the compiler handle it, then apparently all's well.
sed -i 's/"-Wl,-r"/"-r"/' compiler/main/DriverPipeline.hs
cp mk/build.mk.sample mk/build.mk
cat >> mk/build.mk <<-EOF
SRC_HC_OPTS += -optc-Wno-unused-label -optc-Wno-unused-but-set-variable
SRC_HC_OPTS += -optc-Wno-unused-variable -optc-Wno-unused-function
SRC_HC_OPTS += -optc-Wno-unused-command-line-argument -optc-Wno-unknown-warning-option
GhcStage2HcOpts += -optl-Wl,--enable-new-dtags
INTEGER_LIBRARY = integer-simple
SplitSections = YES
BuildFlavour = quick-cross
HADDOCK_DOCS = NO
BUILD_SPHINX_HTML = NO
BUILD_SPHINX_PS = NO
BUILD_SPHINX_PDF = NO
DYNAMIC_GHC_PROGRAMS = $DYNAMIC_GHC_PROGRAMS
GhcLibWays = v
BUILD_MAN = NO
#STRIP_CMD = $STRIP
EOF
# If choosing to build a GHC dynamically linked to its libs, then
# $TERMUX_PREFIX/lib automatically gets added to the rpath that's generated
if [ "$DYNAMIC_GHC_PROGRAMS" != "YES" ]; then
echo "GhcStage2HcOpts += -optl-Wl,-rpath=$TERMUX_PREFIX/lib" >> mk/build.mk
fi
# So... this is fun. If these options are initially passed to the configure script,
# then building stage 0 breaks, because it's meant to run on the host with the
# host's libs. But of course, we need to link to Termux's libffi etc. and use the
# cross-compiler when building something to run on Android in the later stages
patch -Np1 <<EOF
--- a/rules/build-package-data.mk.orig 2020-06-09 23:44:52.013029077 +0000
+++ b/rules/build-package-data.mk 2020-06-09 23:45:10.589149807 +0000
@@ -108,6 +108,15 @@
\$1_\$2_CONFIGURE_OPTS += --configure-option=--host=\$(TargetPlatformFull)
endif
+ifneq "\$3" "0"
+\$1_\$2_CONFIGURE_OPTS += --configure-option=--host=$TERMUX_HOST_PLATFORM --configure-option=CXX=$CXX --configure-option=LD=$LD --configure-option=AR=$AR
+\$1_\$2_CONFIGURE_OPTS += --configure-option=AS=$AS --configure-option=CC=$CC --configure-option=RANLIB=$RANLIB --configure-option=READELF=$READELF
+\$1_\$2_CONFIGURE_OPTS += --configure-option=OBJCOPY=$OBJCOPY --configure-option=OBJDUMP=$OBJDUMP --configure-option=--with-system-libffi
+\$1_\$2_CONFIGURE_OPTS += --configure-option=--with-ffi-includes=$TERMUX_PREFIX/include --configure-option=--with-ffi-libraries=$TERMUX_PREFIX/lib
+\$1_\$2_CONFIGURE_OPTS += --configure-option=--with-iconv-includes=$TERMUX_PREFIX/include --configure-option=--with-iconv-libraries=$TERMUX_PREFIX/lib
+\$1_\$2_CONFIGURE_OPTS += --configure-option=--with-curses-includes=$TERMUX_PREFIX/include/ncursesw --configure-option=--with-curses-libraries=$TERMUX_PREFIX/lib
+endif
+
ifeq "\$3" "0"
\$1_\$2_CONFIGURE_OPTS += \$\$(BOOT_PKG_CONSTRAINTS)
endif
EOF
export TERMUX_LD="$LD"
unset AR
unset AS
unset CC
export CFLAGS=""
unset CPP
export CPPFLAGS=""
unset CXXFLAGS
unset CXX
export LDFLAGS=""
unset LD
unset PKG_CONFIG
unset RANLIB
unset READELF
unset OBJCOPY
unset OBJDUMP
autoreconf
}
termux_step_post_make_install() {
# We may build GHC with `llc-9` etc., but only `llc` is present in Termux
sed -i 's/"LLVM llc command", "llc.*"/"LLVM llc command", "llc"/' "$TERMUX_PREFIX/lib/ghc-$TERMUX_PKG_VERSION/settings"
sed -i 's/"LLVM opt command", "opt.*"/"LLVM opt command", "opt"/' "$TERMUX_PREFIX/lib/ghc-$TERMUX_PKG_VERSION/settings"
if [ "$DYNAMIC_GHC_PROGRAMS" = "YES" ]; then
# Hack to turn the binaries' rpath from something relative to the build environment
# into something that matches Termux's FHS. patchelf needs to be installed on the host.
while IFS= read -r -d '' bin; do
local curr_rpath="$(patchelf --print-rpath "$bin" 2>/dev/null)"
if [ -n "$curr_rpath" ]; then
local paths_to_prepend=()
local new_rpath=()
IFS=':' read -ra paths <<< "$curr_rpath"
for i in "${!paths[@]}"; do
# Prioritise non-Haskell library paths
if [[ ${paths[$i]} != *ghc-$TERMUX_PKG_VERSION* ]]; then
paths_to_prepend+=("${paths[$i]}")
continue
fi
local fixed_path="${paths[$i]/\/dist-install\/build}"
if [ "$fixed_path" != "${paths[$i]}" ]; then
# Naïvely correct the path to a Haskell library
fixed_path="${fixed_path##*/}"
fixed_path=$(echo "$TERMUX_PREFIX/lib/ghc-$TERMUX_PKG_VERSION/$fixed_path-"[[:digit:]]*)
new_rpath+=("$fixed_path")
else
# This may be the path to RTS, which does not have a version number in the folder name
# and nor is it apparently expected to be found in dist-install
fixed_path="${paths[$i]/\/dist\/build}"
if [ "$fixed_path" != "${paths[$i]}" ]; then
new_rpath+=("$TERMUX_PREFIX/lib/ghc-$TERMUX_PKG_VERSION/${fixed_path##*/}")
else
new_rpath+=("$fixed_path")
fi
fi
done
# Make sure the standard Termux library path is the first entry
[[ ! " ${paths_to_prepend[@]} " =~ " $TERMUX_PREFIX/lib " ]] && paths_to_prepend=("$TERMUX_PREFIX/lib" "${paths_to_prepend[@]}")
# This isn't in the original rpath at all, but is needed
paths_to_prepend+=("$TERMUX_PREFIX/lib/ghc-$TERMUX_PKG_VERSION/ghc-$TERMUX_PKG_VERSION")
local OIFS="$IFS"
local IFS=':'
printf -v new_rpath "%s:%s" "${paths_to_prepend[*]}" "${new_rpath[*]}"
IFS="$OIFS"
patchelf --set-rpath "$new_rpath" "$bin"
fi
done < <(find "$TERMUX_PREFIX/lib/ghc-$TERMUX_PKG_VERSION/bin/" -type f -print0)
fi
}
termux_step_install_license() {
install -Dm600 -t "$TERMUX_PREFIX/share/doc/ghc" "$TERMUX_PKG_SRCDIR/LICENSE"
}