mirror of
https://github.com/ElementsProject/lightning.git
synced 2024-11-19 18:11:28 +01:00
54b66f0049
I noticed that DEVELOPER was being reset to 0 by ./configure --reconfigure;
that's because we set the defaults first, then --reconfigure would only
override *unset* vars. We now set up defaults last.
We unify all our "find the default" functions, to neaten them; in
particular find_pytest and our open-coded valgrind testing function.
We can figure out whether valgrind works using /bin/true instead of waiting
until configurator is built.
We're also more careful with ${FOO-default} vs ${FOO:-default}; the former
does not replace if FOO is set to the empty string, which is possible for
some of our settings (COPTFLAGS, CDEBUGFLAGS in particular).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
289 lines
8.3 KiB
Bash
Executable File
289 lines
8.3 KiB
Bash
Executable File
#! /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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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-error=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-error=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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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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}
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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 " Developer mode, good for testing"
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usage_with_default "--enable/disable-compat" "$COMPAT" "enable" "disable"
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echo " Compatibility mode, good to disable to see if your software breaks"
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usage_with_default "--enable/disable-valgrind" "(autodetect)"
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echo " Valgrind binary to use for tests"
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usage_with_default "--enable/disable-static" "$STATIC" "enable" "disable"
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echo " Static link binary"
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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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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" "$CC" ${CWARNFLAGS-$BASE_WARNFLAGS} $CDEBUGFLAGS $COPTFLAGS <<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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int main(void)
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{
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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=-lsqlite3
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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_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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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 "$COPTFLAGS"
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add_var VALGRIND "$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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# 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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