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395 lines
11 KiB
395 lines
11 KiB
#! /bin/sh
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# Simple configure script for c-lightning.
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set -e
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CONFIGURATOR=ccan/tools/configurator/configurator
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CONFIG_VAR_FILE=config.vars
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CONFIG_HEADER=ccan/config.h
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BASE_WARNFLAGS="-Wall -Wundef -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes -Wold-style-definition -Werror"
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: ${PKG_CONFIG=pkg-config}
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# You can set PG_CONFIG in the environment to direct configure to call
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# a specific 'pg_config' binary. If you set it to an empty string, then
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# PostgreSQL support will be explicitly disabled, even if a 'pg_config'
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# binary exists in your PATH. If you leave it unset, then the following
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# line enables the automagic detection that most users want.
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: ${PG_CONFIG=pg_config}
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usage_with_default()
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{
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if [ $# = 4 ]; then
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if [ "$2" = 1 ]; then
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DEF=$3
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else
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DEF=$4
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fi
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else
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DEF=$2
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fi
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echo " $1 (default $DEF)"
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}
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# Given DEVELOPER, what COPTFLAGS do we default to.
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default_coptflags()
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{
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if [ "$1" = 0 ]; then
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echo "-Og"
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fi
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}
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# Given COPTFLAGS, HAVE_GCC and HAVE_MODERN_GCC, what CWARNFLAGS to default to?
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default_cwarnflags()
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{
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F=$BASE_WARNFLAGS
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# Clang doesn't like -Wno-maybe-uninitialized, but doesn't seem
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# to give spurious warnings, either.
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if [ "$2" = 1 ]; then
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# With old gccs, or optimization != -O3, we need to suppress some warnings.
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if [ -n "${1##*-O3*}" ] || [ "$3" != "1" ]; then
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F="$F -Wno-maybe-uninitialized"
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fi
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fi
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echo "$F"
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}
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default_pytest()
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{
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PYTEST_BINS="pytest-3 pytest3 pytest py.test"
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for p in $PYTEST_BINS; do
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if [ "$(which $p)" != "" ] ; then
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"$p" --version 2>&1 | grep -q "python3" || continue
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echo "$p"
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return
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fi
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done
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PYTHON_BINS="python python3"
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for p in $PYTHON_BINS; do
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if [ "$(which $p)" != "" ] ; then
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$p --version 2>&1 | grep -q "Python 3." || continue
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if $p -c "import pytest" 2>/dev/null ; then
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echo "$p -m pytest"
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return
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fi
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fi
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done
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}
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require()
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{
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name="$1"
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resolution="$2"
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shift 2
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echo -n "checking for $name... "
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if "$@" 2>/dev/null; then
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echo 'found'
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return
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fi
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echo 'not found'
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echo "$resolution" >&2
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exit 1
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}
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default_valgrind_setting()
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{
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# Valgrind must accept all these options (might exit with error 7 though
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# if /bin/true leaks mem on your system!)
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if valgrind -q --error-exitcode=7 --track-origins=yes --leak-check=full --show-reachable=yes --errors-for-leak-kinds=all /bin/true >/dev/null 2>&1 || [ $? = 7 ]; then
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echo 1
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else
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echo 0
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fi
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}
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set_defaults()
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{
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# Default values, loaded from environment or canned.
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# Note that ":-" means substitute if empty or unset, "-" means only if unset
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# which matters since you might explicitly set of these blank.
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PREFIX=${PREFIX:-/usr/local}
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CC=${CC:-cc}
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CDEBUGFLAGS=${CDEBUGFLAGS--std=gnu11 -g -fstack-protector}
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DEVELOPER=${DEVELOPER:-0}
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EXPERIMENTAL_FEATURES=${EXPERIMENTAL_FEATURES:-0}
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COMPAT=${COMPAT:-1}
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STATIC=${STATIC:-0}
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ASAN=${ASAN:-0}
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PYTEST=${PYTEST-$(default_pytest)}
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COPTFLAGS=${COPTFLAGS-$(default_coptflags "$DEVELOPER")}
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CONFIGURATOR_CC=${CONFIGURATOR_CC-$CC}
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VALGRIND=${VALGRIND:-$(default_valgrind_setting)}
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TEST_NETWORK=${TEST_NETWORK:-regtest}
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}
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usage()
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{
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echo "Usage: ./configure [--reconfigure] [setting=value] [options]"
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echo "If --reconfigure is specified, $CONFIG_VAR_FILE will set defaults."
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echo "Default settings:"
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set_defaults
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DEFAULT_COPTFLAGS="$(default_coptflags $DEVELOPER)"
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# We assume we have a modern gcc.
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DEFAULT_CWARNFLAGS="$(default_cwarnflags ""$DEFAULT_COPTFLAGS"" 1 1)"
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usage_with_default "CC" "$CC"
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usage_with_default "CWARNFLAGS" "$DEFAULT_CWARNFLAGS"
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usage_with_default "COPTFLAGS" "$DEFAULT_COPTFLAGS"
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usage_with_default "CDEBUGFLAGS" "$CDEBUGFLAGS"
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usage_with_default "CONFIGURATOR_CC" "${CONFIGURATOR_CC:-$CC}"
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echo " To override compile line for configurator itself"
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usage_with_default "PYTEST" "$PYTEST"
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usage_with_default "VALGRIND" "$VALGRIND"
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echo "Options include:"
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usage_with_default "--prefix=" "$PREFIX"
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echo " Prefix for make install"
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usage_with_default "--enable/disable-developer" "$DEVELOPER" "enable" "disable"
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echo " Developer mode, good for testing"
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usage_with_default "--enable/disable-experimental-features" "$EXPERIMENTAL_FEATURES" "enable" "disable"
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echo " Enable experimental features"
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usage_with_default "--enable/disable-compat" "$COMPAT" "enable" "disable"
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echo " Compatibility mode, good to disable to see if your software breaks"
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usage_with_default "--enable/disable-valgrind" "(autodetect)"
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echo " Run tests with Valgrind"
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usage_with_default "--enable/disable-static" "$STATIC" "enable" "disable"
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echo " Static link sqlite3, gmp and zlib libraries"
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usage_with_default "--enable/disable-address-sanitizer" "$ASAN" "enable" "disable"
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echo " Compile with address-sanitizer"
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exit 1
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}
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add_var()
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{
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if [ -n "$2" ]; then
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echo "Setting $1... $2"
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else
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echo "$1 not found"
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fi
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echo "$1=$2" >> $CONFIG_VAR_FILE
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[ -z "$3" ] || echo "#define $1 $2" >> "$3"
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}
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for opt in "$@"; do
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case "$opt" in
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--reconfigure)
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# Figure out what defaulT COPTFLAGS was for this config.vars
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DEFAULT_COPTFLAGS=
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# Set from values if not already set.
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while IFS='=' read VAR VAL; do
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if eval [ -z \${$VAR+x} ]; then eval $VAR=\"$VAL\"; fi
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if [ "$VAR" = DEVELOPER ]; then
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DEFAULT_COPTFLAGS=$(default_coptflags "$VAL")
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fi
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done < $CONFIG_VAR_FILE
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# If we were those defaults, unset so we get new defaults in
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# case DEVELOPER has changed.
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if [ x"$COPTFLAGS" = x"$DEFAULT_COPTFLAGS" ]; then
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unset COPTFLAGS
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fi
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;;
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CC=*) CC="${opt#CC=}";;
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CONFIGURATOR_CC=*) CONFIGURATOR_CC="${opt#CONFIGURATOR_CC=}";;
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CWARNFLAGS=*) CWARNFLAGS="${opt#CWARNFLAGS=}";;
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CDEBUGFLAGS=*) CDEBUGFLAGS="${opt#CDEBUGFLAGS=}";;
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COPTFLAGS=*) COPTFLAGS="${opt#COPTFLAGS=}";;
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PYTEST=*) PYTEST="${opt#PYTEST=}";;
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--prefix=*) PREFIX="${opt#--prefix=}";;
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--enable-developer) DEVELOPER=1;;
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--disable-developer) DEVELOPER=0;;
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--enable-experimental-features) EXPERIMENTAL_FEATURES=1;;
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--disable-experimental-features) EXPERIMENTAL_FEATURES=0;;
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--enable-compat) COMPAT=1;;
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--disable-compat) COMPAT=0;;
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--enable-valgrind) VALGRIND=1;;
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--disable-valgrind) VALGRIND=0;;
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--enable-static) STATIC=1;;
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--disable-static) STATIC=0;;
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--enable-address-sanitizer) ASAN=1;;
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--disable-address-sanitizer) ASAN=0;;
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--help|-h) usage;;
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*)
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echo "Unknown option '$opt'" >&2
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usage
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;;
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esac
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done
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# Now fill in any unset vars.
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set_defaults
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# We assume warning flags don't affect congfigurator that much!
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echo -n "Compiling $CONFIGURATOR..."
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$CC ${CWARNFLAGS-$BASE_WARNFLAGS} $CDEBUGFLAGS $COPTFLAGS -o $CONFIGURATOR $CONFIGURATOR.c
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echo "done"
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if [ "$ASAN" = "1" ]; then
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if [ "$CC" = "clang" ]; then
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echo "Address sanitizer (ASAN) is currently only supported with gcc"
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exit 1
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fi
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if [ "$VALGRIND" = "1" ]; then
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echo "Address sanitizer (ASAN) and valgrind cannot be enabled at the same time"
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exit 1
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fi
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fi
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# Doesn't set a var, but makes sure it exists
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require 'python3-mako' "You need the mako module for python3: see doc/INSTALL.md" python3 -c 'import mako'
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SQLITE3_CFLAGS=""
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SQLITE3_LDLIBS="-lsqlite3"
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if command -v "${PKG_CONFIG}" >/dev/null; then
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SQLITE3_CFLAGS="$("${PKG_CONFIG}" --silence-errors --cflags sqlite3 || :)"
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SQLITE3_LDLIBS="$("${PKG_CONFIG}" --silence-errors --libs sqlite3 || :)"
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fi
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POSTGRES_INCLUDE=""
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POSTGRES_LDLIBS=""
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if command -v "${PG_CONFIG}" >/dev/null; then
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POSTGRES_INCLUDE="-I$("${PG_CONFIG}" --includedir)"
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POSTGRES_LDLIBS="-L$("${PG_CONFIG}" --libdir) -lpq"
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fi
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rm -f $CONFIG_VAR_FILE.$$
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$CONFIGURATOR --extra-tests --autotools-style --var-file=$CONFIG_VAR_FILE.$$ --header-file=$CONFIG_HEADER --configurator-cc="$CONFIGURATOR_CC" --wrapper="$CONFIGURATOR_WRAPPER" "$CC" ${CWARNFLAGS-$BASE_WARNFLAGS} $CDEBUGFLAGS $COPTFLAGS -I/usr/local/include -L/usr/local/lib $SQLITE3_CFLAGS $POSTGRES_INCLUDE <<EOF
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var=HAVE_GOOD_LIBSODIUM
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desc=libsodium with IETF chacha20 variants
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style=DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE
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link=-lsodium
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code=
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#include <sodium.h>
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#include <stdio.h>
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#include <string.h>
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int main(void)
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{
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crypto_secretstream_xchacha20poly1305_state crypto_state;
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unsigned char header[crypto_secretstream_xchacha20poly1305_HEADERBYTES];
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unsigned char data[] = { 1, 2, 3 };
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crypto_secretstream_xchacha20poly1305_init_push(&crypto_state, header,
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data);
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printf("%p\n", crypto_aead_chacha20poly1305_ietf_encrypt);
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printf("%d\n", crypto_aead_chacha20poly1305_ietf_NPUBBYTES);
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return 0;
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}
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/*END*/
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var=HAVE_SQLITE3_EXPANDED_SQL
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desc=sqlite3_expanded_sql
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style=DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE
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link=$SQLITE3_LDLIBS
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code=
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#include <sqlite3.h>
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#include <stdio.h>
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int main(void)
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{
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printf("%p\n", sqlite3_expanded_sql);
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return 0;
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}
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/*END*/
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var=HAVE_SQLITE3
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desc=sqlite3
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style=DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE
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link=$SQLITE3_LDLIBS
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code=
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#include <sqlite3.h>
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#include <stdio.h>
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int main(void)
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{
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printf("%p\n", sqlite3_prepare_v2);
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return 0;
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}
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/*END*/
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var=HAVE_POSTGRES
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desc=postgres
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style=DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE
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link=$POSTGRES_LDLIBS
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code=
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#include <libpq-fe.h>
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#include <stdio.h>
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int main(void)
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{
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printf("libpq version %d\n", PQlibVersion());
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return 0;
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}
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/*END*/
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var=HAVE_GCC
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desc=compiler is GCC
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style=OUTSIDE_MAIN
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code=
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#ifndef __GNUC__
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#error "Not GCC"
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#endif
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#ifdef __clang__
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#error "clang"
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#endif
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/*END*/
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var=HAVE_MODERN_GCC
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desc=GCC version is 7 or above
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style=OUTSIDE_MAIN
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code=
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#if __GNUC__ < 7
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#error "Not modern GCC"
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#endif
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/*END*/
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var=HAVE_PWRITEV
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desc=pwritev() defined
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style=DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE
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code=
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#include <sys/uio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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int main(void)
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{
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struct iovec iov[2];
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int fd = open("/dev/null", O_WRONLY);
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iov[0].iov_base = "hello";
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iov[0].iov_len = 5;
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iov[1].iov_base = " world";
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iov[1].iov_len = 6;
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if (pwritev(fd, iov, 2, 0) == 11)
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return 0;
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return 1;
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}
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/*END*/
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EOF
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mv $CONFIG_VAR_FILE.$$ $CONFIG_VAR_FILE
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# Now we can finally set our warning flags
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if [ -z ${CWARNFLAGS+x} ]; then
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CWARNFLAGS=$(default_cwarnflags "$COPTFLAGS" \
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$(sed -n 's/^HAVE_GCC=//p' < $CONFIG_VAR_FILE) \
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$(sed -n 's/^HAVE_MODERN_GCC=//p' < $CONFIG_VAR_FILE) )
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fi
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add_var PREFIX "$PREFIX"
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add_var CC "$CC"
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add_var CONFIGURATOR_CC "$CONFIGURATOR_CC"
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add_var CWARNFLAGS "$CWARNFLAGS"
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add_var CDEBUGFLAGS "$CDEBUGFLAGS"
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add_var COPTFLAGS "$COPTFLAGS"
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add_var SQLITE3_CFLAGS "$SQLITE3_CFLAGS"
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add_var SQLITE3_LDLIBS "$SQLITE3_LDLIBS"
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add_var POSTGRES_INCLUDE "$POSTGRES_INCLUDE"
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add_var POSTGRES_LDLIBS "$POSTGRES_LDLIBS"
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add_var VALGRIND "$VALGRIND"
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add_var DEVELOPER "$DEVELOPER" $CONFIG_HEADER
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add_var EXPERIMENTAL_FEATURES "$EXPERIMENTAL_FEATURES" $CONFIG_HEADER
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add_var COMPAT "$COMPAT" $CONFIG_HEADER
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add_var PYTEST "$PYTEST"
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add_var STATIC "$STATIC"
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add_var ASAN "$ASAN"
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add_var TEST_NETWORK "$TEST_NETWORK"
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# Hack to avoid sha256 name clash with libwally: will be fixed when that
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# becomes a standalone shared lib.
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echo '#include "ccan_compat.h"' >> $CONFIG_HEADER
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