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AC_PREREQ([2.60])
AC_INIT([libwallycore],[0.8.0])
AC_CONFIG_AUX_DIR([tools/build-aux])
AC_CONFIG_MACRO_DIR([tools/build-aux/m4])
AC_CONFIG_SRCDIR([src/mnemonic.h])
AC_CONFIG_HEADERS([src/config.h])
AC_CANONICAL_HOST
AH_TOP([#ifndef LIBWALLYCORE_CONFIG_H
#define LIBWALLYCORE_CONFIG_H])
AH_BOTTOM([#include "ccan_config.h"
#endif /*LIBWALLYCORE_CONFIG_H*/])
LDPATH_VAR=LD_LIBRARY_PATH
case $host_os in
*darwin*)
is_osx="yes"
LDPATH_VAR=DYLD_LIBRARY_PATH
;;
esac
AM_CONDITIONAL([IS_OSX], [test "x$is_osx" == "xyes"])
AC_SUBST([LDPATH_VAR])
AM_INIT_AUTOMAKE([foreign subdir-objects])
LT_INIT([disable-static])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AC_PROG_CC
# Prefer the compilers native ar/ranlib if available
# We have to manually loop to test these as autoconf inexplicably does
# not provide an AC_PATH_TOOLS macro for this purpose.
candidate_ars="ar"
candidate_ranlibs="ranlib"
# gcc bugs cause memory clearing to fail randomly. clang exhibits much more
# consistent and sane behaviour so should be preferred going forward.
enable_clear_tests="no"
case $CC in
*gcc*)
candidate_ars="gcc-ar ar"
candidate_ranlibs="gcc-ranlib ranlib"
;;
*clang*)
ver=$($CC --version | head -n 1 | cut -d' ' -f3 | cut -d'.' -f1)
candidate_ars="llvm-ar-$ver llvm-ar ar"
candidate_ranlibs="llvm-ranlib-$ver llvm-ranlib ranlib"
enable_clear_tests="yes"
;;
esac
if test "x$is_osx" == "xyes"; then
candidate_ars="libtool $candidate_ars"
CCDIR=`dirname $CC`
if test x"$CCDIR" != x"."; then
if test -x $CCDIR/libtool; then
# Use libtool from the same directory as our clang
AR=$CCDIR/libtool
candidate_ars=""
fi
fi
fi
if test -n "$candidate_ars"; then
for candidate in $candidate_ars; do
AC_PATH_TOOL(AR, $candidate)
if test "x$HAVE_AR" == "xyes"; then
break
fi
done
fi
case $AR in
*libtool)
ARFLAGS="-static -o"
AR_FLAGS="-static -o"
AC_SUBST([ARFLAGS])
AC_SUBST([AR_FLAGS])
;;
esac
for candidate in $candidate_ranlibs; do
AC_PATH_TOOL(RANLIB, $candidate)
if test "x$HAVE_RANLIB" == "xyes"; then
break
fi
done
AC_SUBST([AR])
AC_SUBST([RANLIB])
GNU_SED=sed
AC_CHECK_PROG(HAVE_GSED,gsed,yes,no)
if test "x$HAVE_GSED" == "xyes"; then
GNU_SED=gsed
else
if test "x$is_osx" == "xyes"; then
AC_MSG_ERROR([gsed must be available to build this library])
fi
fi
AC_SUBST([GNU_SED])
#
# C facilities
#
AC_ARG_ENABLE(debug,
AS_HELP_STRING([--enable-debug],[enable debugging (default: no)]),
[debug=$enableval], [debug=no])
AC_ARG_ENABLE(coverage,
AS_HELP_STRING([--enable-coverage],[enable code coverage (default: no)]),
[coverage=$enableval], [coverage=no])
AC_ARG_ENABLE(tests,
AS_HELP_STRING([--enable-tests],[enable code tests (default: yes)]),
[tests=$enableval], [tests=yes])
AC_ARG_ENABLE(elements,
AS_HELP_STRING([--enable-elements],[enable elements tx code (default: no)]),
[elements=$enableval], [elements=no])
AC_ARG_ENABLE(builtin-memset,
AS_HELP_STRING([--enable-builtin-memset],[disable to add -fno-builtin-memset to compiler flags. helps with explicit_bzero/memset being elided on Linux clang 7.0.1 and up (default: yes)]),
[builtin_memset=$enableval], [builtin_memset=yes])
AM_CONDITIONAL([RUN_TESTS], [test "x$tests" == "xyes"])
AM_CONDITIONAL([BUILD_ELEMENTS], [test "x$elements" == "xyes"])
AC_C_BIGENDIAN()
AC_C_INLINE
AC_TYPE_SIZE_T
AC_TYPE_UINT64_T
AC_TYPE_UINT32_T
AC_TYPE_UINT16_T
AC_TYPE_UINT8_T
AM_CFLAGS=
if test "x$debug" == "xyes"; then
# Make debugging easier, leave assertions in
AX_CHECK_COMPILE_FLAG([-O0], [AM_CFLAGS="$AM_CFLAGS -O0"])
AX_CHECK_COMPILE_FLAG([-ggdb], [AM_CFLAGS="$AM_CFLAGS -ggdb"])
AX_CHECK_LINK_FLAG([-O0], [LDFLAGS="$LDFLAGS -O0"])
AX_CHECK_LINK_FLAG([-ggdb], [LDFLAGS="$LDFLAGS -ggdb"])
if test "x$coverage" == "xyes"; then
AX_CHECK_COMPILE_FLAG([-fprofile-arcs -ftest-coverage], [AM_CFLAGS="$AM_CFLAGS -fprofile-arcs -ftest-coverage"])
AX_CHECK_LINK_FLAG([-lgcov], [LDFLAGS="$LDFLAGS -lgcov"])
fi
else
# Optimise and harden if we can
AX_CHECK_COMPILE_FLAG([-O2], [AM_CFLAGS="-O2 $AM_CFLAGS"])
AC_CHECK_DEFINE([_FORTIFY_SOURCE], [], [
AX_CHECK_COMPILE_FLAG([-D_FORTIFY_SOURCE=2],
[CPPFLAGS="$CPPFLAGS -D_FORTIFY_SOURCE=2"])
])
AX_CHECK_COMPILE_FLAG([-fstack-protector-strong], [AM_CFLAGS="$AM_CFLAGS -fstack-protector-strong"])
AX_CHECK_COMPILE_FLAG([-DNDEBUG=1], [AM_CFLAGS="$AM_CFLAGS -DNDEBUG=1"])
AX_CHECK_LINK_FLAG([-O2], [LDFLAGS="-O2 $LDFLAGS"])
AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"])
fi
if test "x$elements" == "xyes"; then
AX_CHECK_COMPILE_FLAG([-DBUILD_ELEMENTS=1], [AM_CFLAGS="$AM_CFLAGS -DBUILD_ELEMENTS=1"])
fi
if test "x$builtin_memset" == "xno"; then
AX_CHECK_COMPILE_FLAG([-fno-builtin-memset], [AM_CFLAGS="$AM_CFLAGS -fno-builtin"])
fi
# -flax-vector-conversions is needed for our arm assembly
AX_CHECK_COMPILE_FLAG([-flax-vector-conversions], [AM_CFLAGS="$AM_CFLAGS -flax-vector-conversions"])
AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing], [NOALIAS_CFLAGS="$AM_CFLAGS -fno-strict-aliasing $AM_CFLAGS"])
AX_CHECK_COMPILE_FLAG([-Wformat-nonliteral], [AM_CFLAGS="-Wformat-nonliteral $AM_CFLAGS"])
AX_CHECK_COMPILE_FLAG([-Wformat-security], [AM_CFLAGS="-Wformat-security $AM_CFLAGS"])
AX_CHECK_COMPILE_FLAG([-Wformat], [AM_CFLAGS="-Wformat $AM_CFLAGS"])
AX_CHECK_COMPILE_FLAG([-Wstrict-prototypes], [AM_CFLAGS="-Wstrict-prototypes $AM_CFLAGS"])
AX_CHECK_COMPILE_FLAG([-Wshadow], [AM_CFLAGS="-Wshadow $AM_CFLAGS"])
AX_CHECK_COMPILE_FLAG([-Wnested-externs], [AM_CFLAGS="-Wnested-externs $AM_CFLAGS"])
AX_CHECK_COMPILE_FLAG([-Wcast-align], [AM_CFLAGS="-Wcast-align $AM_CFLAGS"])
AX_CHECK_COMPILE_FLAG([-Wpedantic], [AM_CFLAGS="-Wpedantic $AM_CFLAGS"])
AX_CHECK_COMPILE_FLAG([-Wextra], [AM_CFLAGS="-Wextra $AM_CFLAGS"])
AX_CHECK_COMPILE_FLAG([-Wall], [AM_CFLAGS="-Wall $AM_CFLAGS"])
# Needed for Ubuntu 20.04LTS when compiling as a library
AX_CHECK_COMPILE_FLAG([-D_DEFAULT_SOURCE=1], [AM_CFLAGS="-D_DEFAULT_SOURCE=1 $AM_CFLAGS"])
# Disable some unhelpful errors from those enabled above
AX_CHECK_COMPILE_FLAG([-Wno-unused-function], [AM_CFLAGS="$AM_CFLAGS -Wno-unused-function"])
AX_CHECK_COMPILE_FLAG([-Wno-long-long], [AM_CFLAGS="$AM_CFLAGS -Wno-long-long"])
AX_CHECK_COMPILE_FLAG([-Wno-overlength-strings], [AM_CFLAGS="$AM_CFLAGS -Wno-overlength-strings"])
AX_CHECK_COMPILE_FLAG([-Wno-variadic-macros], [AM_CFLAGS="$AM_CFLAGS -Wno-variadic-macros"])
if [[ "$CC" == *"clang"* ]]; then
AX_CHECK_COMPILE_FLAG([-Wno-gnu-statement-expression], [AM_CFLAGS="$AM_CFLAGS -Wno-gnu-statement-expression"])
AX_CHECK_COMPILE_FLAG([-Wno-zero-length-array], [AM_CFLAGS="$AM_CFLAGS -Wno-zero-length-array"])
AX_CHECK_COMPILE_FLAG([-Wno-language-extension-token], [AM_CFLAGS="$AM_CFLAGS -Wno-language-extension-token"])
AX_CHECK_COMPILE_FLAG([-Wno-unknown-attributes], [AM_CFLAGS="$AM_CFLAGS -Wno-unknown-attributes"])
fi
AC_SUBST([NOALIAS_CFLAGS])
# Under OSX the compiler accepts this flag but the linker then fails.
if test "x$is_osx" != "xyes"; then
AX_CHECK_COMPILE_FLAG([-Wl,--whole-archive], [whole_archive=yes])
fi
# SWIG versions vary in generated code quality; skip warnings
SWIG_WARN_CFLAGS="-fno-strict-aliasing"
AX_CHECK_COMPILE_FLAG([-Wno-shadow], [SWIG_WARN_CFLAGS="$SWIG_WARN_CFLAGS -Wno-shadow"])
AX_CHECK_COMPILE_FLAG([-Wno-self-assign], [SWIG_WARN_CFLAGS="$SWIG_WARN_CFLAGS -Wno-self-assign"])
AX_CHECK_COMPILE_FLAG([-Wno-missing-field-initializers], [SWIG_WARN_CFLAGS="$SWIG_WARN_CFLAGS -Wno-missing-field-initializers"])
AC_SUBST([SWIG_WARN_CFLAGS])
AC_ARG_ENABLE(export-all,
AS_HELP_STRING([--enable-export-all],[export all functions (for testing, default: no)]),
[export_all=$enableval], [export_all=no])
AM_CONDITIONAL([EXPORT_ALL], [test "x$export_all" == "xyes"])
if test "x$export_all" != "xyes"; then
AX_CHECK_COMPILE_FLAG([-fvisibility=hidden], [AM_CFLAGS="$AM_CFLAGS -fvisibility=hidden"])
fi
# Assume we have no unaligned access if cross-compiling
AC_RUN_IFELSE([AC_LANG_SOURCE([[int main(void){static int a[2];return *((int*)(((char*)a)+1)) != 0;}]])],
have_unaligned=1, have_unaligned=0, have_unaligned=0)
AC_DEFINE_UNQUOTED([HAVE_UNALIGNED_ACCESS], [$have_unaligned], [Define if we have unaligned access])
if test "x$is_osx" != "xyes"; then
# Assume we are using gcc (i.e. have this attribute) if cross-compiling
AC_COMPILE_IFELSE([AC_LANG_SOURCE([extern int foo(int) __attribute__((weak)); int main(void){return 0;}])],
[AC_DEFINE([HAVE_ATTRIBUTE_WEAK], 1, [Define if we have __attribute__((weak))])])
fi
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/mman.h>]],[[mmap(0,0,0,0,0,0)]])],
[AC_DEFINE(HAVE_MMAP, 1, [Define if we have mmap])])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>]],[[return posix_memalign(NULL,0,0)]])],
[AC_DEFINE(HAVE_POSIX_MEMALIGN, 1, [Define if we have posix_memalign])])
AC_CHECK_FUNCS([memset_s explicit_bzero explicit_memset])
AC_MSG_CHECKING(whether we can use inline asm code)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
]], [[
int a = 42;
int *pnt = &a;
__asm__ __volatile__ ("" : : "r"(pnt) : "memory");
]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_INLINE_ASM], [1], [inline asm code can be used])],
[AC_MSG_RESULT(no)]
)
AC_CHECK_HEADERS([byteswap.h, sys/mman.h])
AX_PTHREAD([ac_have_pthread=yes], [ac_have_pthread=no])
AM_CONDITIONAL([USE_PTHREAD], [test "x$ac_have_pthread" == "xyes" -a "x$enable_clear_tests" == "xyes"])
if test "x$ac_have_pthread" == "xyes"; then
AC_DEFINE([HAVE_PTHREAD], 1, [Define if we have pthread support])
AC_CHECK_HEADERS([asm/page.h])
fi
#
# libsecp256k1
#
# FIXME: This is needed to force libtool to use all object files from secp.
# We can only build secp properly by recursively invoking
# configure/make, and can't include it as a noinst_ library. Libtool
# assumes that such libraries will be installed along with our library
# target and so won't force all object files in the library to be
# included in ours - despite the fact that we are making a shared
# library and linking to a static one. This is broken and we work
# around it by hacking the whole-archive flags into the _LDADD variable
# for wallycore.
# Because automake tries to police its users very strictly and fails
# hard when flags are passed in this way, we have to substitute the
# flags here.
# Because libtool both intercepts -Wl and arbitrarily re-orders its
# command line inputs, we have to concoct a single expression to
# enforce linking that cannot be split, hence the below expression.
LIBADD_SECP256K1="secp256k1/.libs/libsecp256k1.a"
if test "x$whole_archive" == "xyes"; then
LIBADD_SECP256K1="-Wl,--whole-archive,secp256k1/.libs/libsecp256k1.a,--no-whole-archive"
fi
AC_SUBST([LIBADD_SECP256K1])
#
# Python facilities
#
AC_ARG_ENABLE(python-manylinux,
AS_HELP_STRING([--enable-python-manylinux],[enable manylinux Python compatibility (default: no)]),
[python_manylinux=$enableval], [python_manylinux=no])
AM_CONDITIONAL([PYTHON_MANYLINUX], [test "x$python_manylinux" == "xyes"])
AX_PYTHON_DEVEL([>= '2.7.0'])
AM_CONDITIONAL([HAVE_PYTHON], [test "$PYTHON" != ""])
AM_CONDITIONAL([RUN_PYTHON_TESTS], [test "$PYTHON" != "" -a "x$pythonexists" == "xyes"])
#
# SWIG
#
AC_PROG_SWIG
AC_ARG_ENABLE(swig-python,
AS_HELP_STRING([--enable-swig-python],[enable the SWIG Python interface (default: no)]),
[swig_python=$enableval], [swig_python=no])
AM_CONDITIONAL([USE_SWIG_PYTHON], [test "x$swig_python" == "xyes"])
if test "x$swig_python" == "xyes"; then
if test "x$pythonexists" != "xyes"; then
AC_MSG_FAILURE([ERROR: No usable Python was found for swig-python])
fi
SWIG_PYTHON
AX_CHECK_COMPILE_FLAG([-DSWIG_PYTHON_BUILD=1], [AM_CFLAGS="$AM_CFLAGS -DSWIG_PYTHON_BUILD=1"])
fi
AC_ARG_ENABLE(js-wrappers,
AS_HELP_STRING([--enable-js-wrappers],[enable the Javascript interface wrappers (default: no)]),
[js_wrappers=$enableval], [js_wrappers=no])
AM_CONDITIONAL([USE_JS_WRAPPERS], [test "x$js_wrappers" == "xyes"])
if test "x$js_wrappers" == "xyes"; then
if test "x$pythonexists" != "xyes"; then
AC_MSG_FAILURE([ERROR: No usable Python was found for generating js wrappers])
fi
if test "x$swig_python" != "xyes"; then
SWIG_PYTHON
fi
AX_CHECK_COMPILE_FLAG([-DSWIG_JAVASCRIPT_BUILD=1], [AM_CFLAGS="$AM_CFLAGS -DSWIG_JAVASCRIPT_BUILD=1"])
AC_CHECK_PROG(HAVE_YARN,yarn,yes,no)
if test "x$HAVE_YARN" != "xyes"; then
AC_MSG_FAILURE([ERROR: No usable yarn was found, please install yarn before re-running])
fi
fi
# Set node-gyp flags regardless of JS enablement; they are used for wrapper
# generation which can be usefully run without enabling JS/requiring yarn
NODE_GYP_DIR="Release"
if test "x$debug" == "xyes"; then
NODE_GYP_FLAGS="--debug"
NODE_GYP_DIR="Debug"
fi
AC_SUBST([NODE_GYP_FLAGS])
AC_SUBST([NODE_GYP_DIR])
AC_ARG_ENABLE(swig-java,
AS_HELP_STRING([--enable-swig-java],[enable the SWIG java (JNI) interface (default: no)]),
[swig_java=$enableval], [swig_java=no])
AM_CONDITIONAL([USE_SWIG_JAVA], [test "x$swig_java" == "xyes"])
if test "x$swig_java" == "xyes"; then
saved_JAVA_HOME=$JAVA_HOME
if test x"$cross_compiling" = "xyes"; then
# For cross compiling we assume the users host O/S Java install is not
# usable and that they have provided suitable FLAGS/LDFLAGS
JAVA_HOME=/does_not_exist
fi
export JAVA_HOME
AX_JNI_INCLUDE_DIR
export JAVA_HOME=$saved_JAVA_HOME
for JNI_DIR in $JNI_INCLUDE_DIRS; do
SWIG_JAVA_CPPFLAGS="$SWIG_JAVA_CPPFLAGS -I$JNI_DIR"
done
SWIG_JAVA_OPT="-java"
AC_SUBST([SWIG_JAVA_CPPFLAGS])
AC_SUBST([SWIG_JAVA_OPT])
AX_CHECK_COMPILE_FLAG([-DSWIG_JAVA_BUILD=1], [AM_CFLAGS="$AM_CFLAGS -DSWIG_JAVA_BUILD=1"])
fi
if test "x$JAVA_HOME" != "x"; then
JAVA="$JAVA_HOME/bin/java"
AC_SUBST([JAVA])
JAVAC="$JAVA_HOME/bin/javac"
AC_SUBST([JAVAC])
JAR="$JAVA_HOME/bin/jar"
AC_SUBST([JAR])
else
AC_CHECK_PROGS(JAVA, [java])
AC_CHECK_PROGS(JAVAC, [javac])
AC_CHECK_PROGS(JAR, [jar])
fi
AM_CONDITIONAL([HAVE_JAVA], [test "x$JAVA" != "x"])
AM_CONDITIONAL([HAVE_JAVAC], [test "x$JAVAC" != "x"])
if test "x$swig_java" == "xyes"; then
if test "x$JAVAC" != "x"; then
if test "x$JAVA" != "x"; then
# Only run tests if we have java-swig, compiler and interpreter
run_java_tests="yes"
fi
fi
fi
AM_CONDITIONAL([RUN_JAVA_TESTS], [test "x$run_java_tests" != "x"])
JAVAC_TARGET=1.7
AC_SUBST([JAVAC_TARGET])
AC_SUBST([AM_CFLAGS])
if test "x$enable_static" == "xyes"; then
CTEST_EXTRA_STATIC='$(libwallycore_la_LIBADD)'
fi
AC_SUBST([CTEST_EXTRA_STATIC])
AM_CONDITIONAL([SHARED_BUILD_ENABLED], [test "x$enable_shared" == "xyes"])
AC_CONFIG_FILES([
Makefile
src/Makefile
src/wallycore.pc
])
secp_asm="--with-asm=auto"
if test "x$debug" == "xyes"; then
secp_asm="--with-asm=no"
fi
if test x"$cross_compiling" = "xyes"; then
# For cross compiling we assume the users host O/S Java install is not
# usable and that they have provided suitable FLAGS/LDFLAGS
export JAVA_HOME=/does_not_exist
fi
export CC
export CFLAGS
export AR
export ARFLAGS
export AR_FLAGS
export LD
export LDFLAGS
ac_configure_args="${ac_configure_args} --disable-shared --with-pic --with-bignum=no --enable-experimental --enable-module-ecdh --enable-module-recovery --enable-module-rangeproof --enable-module-surjectionproof --enable-module-whitelist --enable-module-generator --enable-openssl-tests=no --enable-tests=no --enable-exhaustive-tests=no --enable-benchmark=no --disable-dependency-tracking ${secp_asm}"
AC_CONFIG_SUBDIRS([src/secp256k1])
AC_OUTPUT