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configure.ac
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AC_PREREQ([2.69])
define(_CLIENT_VERSION_MAJOR, 4)
define(_CLIENT_VERSION_MINOR, 2)
define(_CLIENT_VERSION_REVISION, 0)
define(_CLIENT_VERSION_BUILD, 0)
define(_CLIENT_VERSION_IS_RELEASE, true)
define(_COPYRIGHT_YEAR, 2025)
define(_COPYRIGHT_HOLDERS,[The %s developers])
define(_COPYRIGHT_HOLDERS_SUBSTITUTION,[[DigiGreen Core]])
AC_INIT([DigiGreen Core],[_CLIENT_VERSION_MAJOR._CLIENT_VERSION_MINOR._CLIENT_VERSION_REVISION],[https://github.com/lateminer/digigreen-core],[digigreen-core])
AC_CONFIG_SRCDIR([src/main.cpp])
AC_CONFIG_HEADERS([src/config/bitcoin-config.h])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([build-aux/m4])
m4_ifndef([PKG_PROG_PKG_CONFIG], [AC_MSG_ERROR([PKG_PROG_PKG_CONFIG macro not found. Please install pkg-config and re-run autogen.sh])])
PKG_PROG_PKG_CONFIG
if test "x$PKG_CONFIG" = x; then
AC_MSG_ERROR([pkg-config not found])
fi
BITCOIN_DAEMON_NAME=digigreend
BITCOIN_GUI_NAME=digigreen-qt
BITCOIN_CLI_NAME=digigreen-cli
BITCOIN_TX_NAME=digigreen-tx
dnl Unless the user specified ARFLAGS, force it to be cr
AC_ARG_VAR(ARFLAGS, [Flags for the archiver, defaults to <cr> if not set])
if test "x${ARFLAGS+set}" != "xset"; then
ARFLAGS="cr"
fi
AC_CANONICAL_HOST
AH_TOP([#ifndef BITCOIN_CONFIG_H])
AH_TOP([#define BITCOIN_CONFIG_H])
AH_BOTTOM([#endif //BITCOIN_CONFIG_H])
dnl faketime breaks configure and is only needed for make. Disable it here.
unset FAKETIME
dnl Automake init set-up and checks
AM_INIT_AUTOMAKE([1.13 no-define subdir-objects foreign])
dnl faketime messes with timestamps and causes configure to be re-run.
dnl --disable-maintainer-mode can be used to bypass this.
AM_MAINTAINER_MODE([enable])
dnl make the compilation flags quiet unless V=1 is used
AM_SILENT_RULES([yes])
dnl Compiler checks (here before libtool).
if test "x${CXXFLAGS+set}" = "xset"; then
CXXFLAGS_overridden=yes
else
CXXFLAGS_overridden=no
fi
AC_PROG_CXX
dnl By default, libtool for mingw refuses to link static libs into a dll for
dnl fear of mixing pic/non-pic objects, and import/export complications. Since
dnl we have those under control, re-enable that functionality.
dnl Compiler with posix support is needed for cross compile some of c++ 14 features for mingw like threads and mutexes.
case $host in
*mingw*)
lt_cv_deplibs_check_method="pass_all"
CC="$CC-posix"
CXX="$CXX-posix"
;;
esac
AC_ARG_ENABLE([c++17],
[AS_HELP_STRING([--enable-c++17],
[enable compilation in c++17 mode (disabled by default)])],
[use_cxx17=$enableval],
[use_cxx17=no])
dnl Require C++11 or C++17 compiler (no GNU extensions)
if test "x$use_cxx17" = xyes -o "x$enable_fuzz" = xyes ; then
AX_CXX_COMPILE_STDCXX([17], [noext], [mandatory])
else
AX_CXX_COMPILE_STDCXX([11], [noext], [mandatory])
fi
dnl Check if -latomic is required for <std::atomic>
CHECK_ATOMIC
dnl Unless the user specified OBJCXX, force it to be the same as CXX. This ensures
dnl that we get the same -std flags for both.
m4_ifdef([AC_PROG_OBJCXX],[
if test "x${OBJCXX+set}" = "x"; then
OBJCXX="${CXX}"
fi
AC_PROG_OBJCXX
])
dnl Since libtool 1.5.2 (released 2004-01-25), on Linux libtool no longer
dnl sets RPATH for any directories in the dynamic linker search path.
dnl See more: https://wiki.debian.org/RpathIssue
LT_PREREQ([1.5.2])
dnl Libtool init checks.
LT_INIT([pic-only])
dnl Check/return PATH for base programs.
AC_PATH_TOOL(AR, ar)
AC_PATH_TOOL(RANLIB, ranlib)
AC_PATH_TOOL(STRIP, strip)
AC_PATH_TOOL(GCOV, gcov)
AC_PATH_TOOL(LLVM_COV, llvm-cov)
AC_PATH_PROG(LCOV, lcov)
dnl Python 3.6 is specified in .python-version and should be used if available, see doc/dependencies.md
AC_PATH_PROGS([PYTHON], [python3.6 python3.7 python3.8 python3.9, python3.10, python3 python])
AC_PATH_PROG(GENHTML, genhtml)
AC_PATH_PROG([GIT], [git])
AC_PATH_PROG(CCACHE,ccache)
AC_PATH_PROG(XGETTEXT,xgettext)
AC_PATH_PROG(HEXDUMP,hexdump)
AC_PATH_TOOL(READELF, readelf)
AC_PATH_TOOL(CPPFILT, c++filt)
AC_PATH_TOOL(OBJCOPY, objcopy)
AC_PATH_PROG(DOXYGEN, doxygen)
AM_CONDITIONAL([HAVE_DOXYGEN], [test -n "$DOXYGEN"])
AC_ARG_VAR(PYTHONPATH, Augments the default search path for python module files)
AC_ARG_ENABLE([wallet],
[AS_HELP_STRING([--disable-wallet],
[disable wallet (enabled by default)])],
[enable_wallet=$enableval],
[enable_wallet=auto])
AC_ARG_WITH([miniupnpc],
[AS_HELP_STRING([--with-miniupnpc],
[enable UPNP (default is yes if libminiupnpc is found)])],
[use_upnp=$withval],
[use_upnp=auto])
AC_ARG_ENABLE([upnp-default],
[AS_HELP_STRING([--enable-upnp-default],
[if UPNP is enabled, turn it on at startup (default is no)])],
[use_upnp_default=$enableval],
[use_upnp_default=no])
AC_ARG_ENABLE(tests,
AS_HELP_STRING([--disable-tests],[do not compile tests (default is to compile)]),
[use_tests=$enableval],
[use_tests=yes])
AC_ARG_ENABLE(gui-tests,
AS_HELP_STRING([--disable-gui-tests],[do not compile GUI tests (default is to compile if GUI and tests enabled)]),
[use_gui_tests=$enableval],
[use_gui_tests=$use_tests])
AC_ARG_ENABLE(bench,
AS_HELP_STRING([--disable-bench],[do not compile benchmarks (default is to compile)]),
[use_bench=$enableval],
[use_bench=yes])
AC_ARG_WITH([comparison-tool],
AS_HELP_STRING([--with-comparison-tool],[path to java comparison tool (requires --enable-tests)]),
[use_comparison_tool=$withval],
[use_comparison_tool=no])
AC_ARG_ENABLE([comparison-tool-reorg-tests],
AS_HELP_STRING([--enable-comparison-tool-reorg-tests],[enable expensive reorg tests in the comparison tool (default no)]),
[use_comparison_tool_reorg_tests=$enableval],
[use_comparison_tool_reorg_tests=no])
AC_ARG_ENABLE([extended-rpc-tests],
AS_HELP_STRING([--enable-extended-rpc-tests],[enable expensive RPC tests when using lcov (default no)]),
[use_extended_rpc_tests=$enableval],
[use_extended_rpc_tests=no])
AC_ARG_WITH([qrencode],
[AS_HELP_STRING([--with-qrencode],
[enable QR code support (default is yes if qt is enabled and libqrencode is found)])],
[use_qr=$withval],
[use_qr=auto])
AC_ARG_ENABLE([hardening],
[AS_HELP_STRING([--disable-hardening],
[do not attempt to harden the resulting executables (default is to harden when possible)])],
[use_hardening=$enableval],
[use_hardening=auto])
AC_ARG_ENABLE([reduce-exports],
[AS_HELP_STRING([--enable-reduce-exports],
[attempt to reduce exported symbols in the resulting executables (default is no)])],
[use_reduce_exports=$enableval],
[use_reduce_exports=no])
AC_ARG_ENABLE([ccache],
[AS_HELP_STRING([--disable-ccache],
[do not use ccache for building (default is to use if found)])],
[use_ccache=$enableval],
[use_ccache=auto])
dnl Suppress warnings from external headers (e.g. Boost, Qt).
dnl May be useful if warnings from external headers clutter the build output
dnl too much, so that it becomes difficult to spot Bitcoin Core warnings
dnl or if they cause a build failure with --enable-werror.
AC_ARG_ENABLE([suppress-external-warnings],
[AS_HELP_STRING([--enable-suppress-external-warnings],
[Suppress warnings from external headers (default is no)])],
[suppress_external_warnings=$enableval],
[suppress_external_warnings=no])
AC_ARG_ENABLE([lcov],
[AS_HELP_STRING([--enable-lcov],
[enable lcov testing (default is no)])],
[use_lcov=$enableval],
[use_lcov=no])
AC_ARG_ENABLE([glibc-back-compat],
[AS_HELP_STRING([--enable-glibc-back-compat],
[enable backwards compatibility with glibc])],
[use_glibc_compat=$enableval],
[use_glibc_compat=no])
AC_ARG_ENABLE([threadlocal],
[AS_HELP_STRING([--enable-threadlocal],
[enable features that depend on the c++ thread_local keyword (currently just thread names in debug logs). (default is to enabled if there is platform support and glibc-back-compat is not enabled)])],
[use_thread_local=$enableval],
[use_thread_local=auto])
AC_ARG_ENABLE([asm],
[AS_HELP_STRING([--disable-asm],
[disable assembly routines (enabled by default)])],
[use_asm=$enableval],
[use_asm=yes])
if test "x$use_asm" = xyes; then
AC_DEFINE(USE_ASM, 1, [Define this symbol to build in assembly routines])
fi
AC_ARG_WITH([system-univalue],
[AS_HELP_STRING([--with-system-univalue],
[Build with system UniValue (default is no)])],
[system_univalue=$withval],
[system_univalue=no]
)
AC_ARG_ENABLE([zmq],
[AS_HELP_STRING([--disable-zmq],
[disable ZMQ notifications])],
[use_zmq=$enableval],
[use_zmq=yes])
AC_ARG_WITH([protoc-bindir],[AS_HELP_STRING([--with-protoc-bindir=BIN_DIR],[specify protoc bin path])], [protoc_bin_path=$withval], [])
AC_ARG_ENABLE([sse2],
[AS_HELP_STRING([--enable-sse2],
[enable SSE2 instructions in the scrypt library. (default is disabled)])],
[use_sse2=$enableval],
[use_sse2=no])
AC_ARG_ENABLE(man,
[AS_HELP_STRING([--disable-man],
[do not install man pages (default is to install)])],,
enable_man=yes)
AM_CONDITIONAL(ENABLE_MAN, test "$enable_man" != no)
dnl Enable debug
AC_ARG_ENABLE([debug],
[AS_HELP_STRING([--enable-debug],
[use compiler flags and macros suited for debugging (default is no)])],
[enable_debug=$enableval],
[enable_debug=no])
dnl Turn warnings into errors
AC_ARG_ENABLE([werror],
[AS_HELP_STRING([--enable-werror],
[Treat certain compiler warnings as errors (default is no)])],
[enable_werror=$enableval],
[enable_werror=no])
AC_LANG_PUSH([C++])
dnl Check for a flag to turn compiler warnings into errors. This is helpful for checks which may
dnl appear to succeed because by default they merely emit warnings when they fail.
dnl
dnl Note that this is not necessarily a check to see if -Werror is supported, but rather to see if
dnl a compile with -Werror can succeed. This is important because the compiler may already be
dnl warning about something unrelated, for example about some path issue. If that is the case,
dnl -Werror cannot be used because all of those warnings would be turned into errors.
AX_CHECK_COMPILE_FLAG([-Werror],[CXXFLAG_WERROR="-Werror"],[CXXFLAG_WERROR=""])
dnl Check for a flag to turn linker warnings into errors. When flags are passed to linkers via the
dnl compiler driver using a -Wl,-foo flag, linker warnings may be swallowed rather than bubbling up.
dnl See note above, the same applies here as well.
dnl
dnl LDFLAG_WERROR Should only be used when testing -Wl,*
case $host in
*darwin*)
AX_CHECK_LINK_FLAG([-Wl,-fatal_warnings],[LDFLAG_WERROR="-Wl,-fatal_warnings"],[LDFLAG_WERROR=""])
;;
*)
AX_CHECK_LINK_FLAG([-Wl,--fatal-warnings],[LDFLAG_WERROR="-Wl,--fatal-warnings"],[LDFLAG_WERROR=""])
;;
esac
if test "x$enable_debug" = xyes; then
dnl Clear default -g -O2 flags
if test "x$CXXFLAGS_overridden" = xno; then
CXXFLAGS=""
fi
dnl Disable all optimizations
AX_CHECK_COMPILE_FLAG([-O0], [[DEBUG_CXXFLAGS="$DEBUG_CXXFLAGS -O0"]],,[[$CXXFLAG_WERROR]])
dnl Prefer -g3, fall back to -g if that is unavailable.
AX_CHECK_COMPILE_FLAG(
[-g3],
[[DEBUG_CXXFLAGS="$DEBUG_CXXFLAGS -g3"]],
[AX_CHECK_COMPILE_FLAG([-g],[[DEBUG_CXXFLAGS="$DEBUG_CXXFLAGS -g"]],,[[$CXXFLAG_WERROR]])],
[[$CXXFLAG_WERROR]])
AX_CHECK_PREPROC_FLAG([-DDEBUG],[[DEBUG_CPPFLAGS="$DEBUG_CPPFLAGS -DDEBUG"]],,[[$CXXFLAG_WERROR]])
AX_CHECK_PREPROC_FLAG([-DDEBUG_LOCKORDER],[[DEBUG_CPPFLAGS="$DEBUG_CPPFLAGS -DDEBUG_LOCKORDER"]],,[[$CXXFLAG_WERROR]])
AX_CHECK_PREPROC_FLAG([-DABORT_ON_FAILED_ASSUME],[[DEBUG_CPPFLAGS="$DEBUG_CPPFLAGS -DABORT_ON_FAILED_ASSUME"]],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-ftrapv],[DEBUG_CXXFLAGS="$DEBUG_CXXFLAGS -ftrapv"],,[[$CXXFLAG_WERROR]])
fi
ERROR_CXXFLAGS=
if test "x$enable_werror" = "xyes"; then
if test "x$CXXFLAG_WERROR" = "x"; then
AC_MSG_ERROR("enable-werror set but -Werror is not usable")
fi
AX_CHECK_COMPILE_FLAG([-Werror=gnu],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=gnu"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=vla],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=vla"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=shadow-field],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=shadow-field"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=switch],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=switch"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=thread-safety],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=thread-safety"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=range-loop-analysis],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=range-loop-analysis"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=unused-variable],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=unused-variable"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=date-time],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=date-time"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=return-type],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=return-type"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=conditional-uninitialized],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=conditional-uninitialized"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=sign-compare],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=sign-compare"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=unreachable-code-loop-increment],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=unreachable-code-loop-increment"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=mismatched-tags], [ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=mismatched-tags"], [], [$CXXFLAG_WERROR])
AX_CHECK_COMPILE_FLAG([-Werror=implicit-fallthrough], [ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=implicit-fallthrough"], [], [$CXXFLAG_WERROR])
if test x$suppress_external_warnings != xno ; then
AX_CHECK_COMPILE_FLAG([-Werror=documentation],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=documentation"],,[[$CXXFLAG_WERROR]])
fi
fi
if test "x$CXXFLAGS_overridden" = "xno"; then
AX_CHECK_COMPILE_FLAG([-Wall],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wall"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wextra],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wextra"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wgnu],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wgnu"],,[[$CXXFLAG_WERROR]])
dnl some compilers will ignore -Wformat-security without -Wformat, so just combine the two here.
AX_CHECK_COMPILE_FLAG([-Wformat -Wformat-security],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wformat -Wformat-security"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wvla],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wvla"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wshadow-field],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wshadow-field"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wswitch],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wswitch"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wthread-safety],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wthread-safety"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wrange-loop-analysis],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wrange-loop-analysis"],,[[$CXXFLAG_WERROR]])
dnl X_CHECK_COMPILE_FLAG([-Wredundant-decls],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wredundant-decls"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wunused-variable],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wunused-variable"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wunused-member-function],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wunused-member-function"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wdate-time],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wdate-time"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wconditional-uninitialized],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wconditional-uninitialized"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wsign-compare],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wsign-compare"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wduplicated-branches],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wduplicated-branches"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wduplicated-cond],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wduplicated-cond"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wlogical-op],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wlogical-op"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Woverloaded-virtual],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Woverloaded-virtual"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wunreachable-code-loop-increment],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wunreachable-code-loop-increment"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wimplicit-fallthrough], [WARN_CXXFLAGS="$WARN_CXXFLAGS -Wimplicit-fallthrough"], [], [$CXXFLAG_WERROR])
if test x$suppress_external_warnings != xno ; then
AX_CHECK_COMPILE_FLAG([-Wdocumentation],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wdocumentation"],,[[$CXXFLAG_WERROR]])
fi
dnl Some compilers (gcc) ignore unknown -Wno-* options, but warn about all
dnl unknown options if any other warning is produced. Test the -Wfoo case, and
dnl set the -Wno-foo case if it works.
AX_CHECK_COMPILE_FLAG([-Wunused-parameter],[NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-unused-parameter"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wself-assign],[NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-self-assign"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wunused-local-typedef],[NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-unused-local-typedef"],,[[$CXXFLAG_WERROR]])
if test x$suppress_external_warnings != xyes ; then
AX_CHECK_COMPILE_FLAG([-Wdeprecated-copy],[NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-deprecated-copy"],,[[$CXXFLAG_WERROR]])
fi
AX_CHECK_COMPILE_FLAG([-Wno-unknown-pragmas],[NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-unknown-pragmas"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wno-strict-aliasing],[NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-strict-aliasing"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wno-duplicated-branches],[NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-duplicated-branches"],,[[$CXXFLAG_WERROR]])
fi
dnl Don't allow extended (non-ASCII) symbols in identifiers. This is easier for code review.
AX_CHECK_COMPILE_FLAG([-fno-extended-identifiers],[[CXXFLAGS="$CXXFLAGS -fno-extended-identifiers"]],,[[$CXXFLAG_WERROR]])
enable_sse42=no
enable_sse41=no
enable_avx2=no
enable_shani=no
if test "x$use_asm" = "xyes"; then
dnl Check for optional instruction set support. Enabling these does _not_ imply that all code will
dnl be compiled with them, rather that specific objects/libs may use them after checking for runtime
dnl compatibility.
dnl x86
AX_CHECK_COMPILE_FLAG([-msse4.2],[[SSE42_CXXFLAGS="-msse4.2"]],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-msse4.1],[[SSE41_CXXFLAGS="-msse4.1"]],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-mavx -mavx2],[[AVX2_CXXFLAGS="-mavx -mavx2"]],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-msse4 -msha],[[SHANI_CXXFLAGS="-msse4 -msha"]],,[[$CXXFLAG_WERROR]])
TEMP_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS $SSE42_CXXFLAGS"
AC_MSG_CHECKING(for SSE4.2 intrinsics)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <stdint.h>
#if defined(_MSC_VER)
#include <intrin.h>
#elif defined(__GNUC__) && defined(__SSE4_2__)
#include <nmmintrin.h>
#endif
]],[[
uint64_t l = 0;
l = _mm_crc32_u8(l, 0);
l = _mm_crc32_u32(l, 0);
l = _mm_crc32_u64(l, 0);
return l;
]])],
[ AC_MSG_RESULT(yes); enable_sse42=yes],
[ AC_MSG_RESULT(no)]
)
CXXFLAGS="$TEMP_CXXFLAGS"
TEMP_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS $SSE41_CXXFLAGS"
AC_MSG_CHECKING(for SSE4.1 intrinsics)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <stdint.h>
#include <immintrin.h>
]],[[
__m128i l = _mm_set1_epi32(0);
return _mm_extract_epi32(l, 3);
]])],
[ AC_MSG_RESULT(yes); enable_sse41=yes; AC_DEFINE(ENABLE_SSE41, 1, [Define this symbol to build code that uses SSE4.1 intrinsics]) ],
[ AC_MSG_RESULT(no)]
)
CXXFLAGS="$TEMP_CXXFLAGS"
TEMP_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS $AVX2_CXXFLAGS"
AC_MSG_CHECKING(for AVX2 intrinsics)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <stdint.h>
#include <immintrin.h>
]],[[
__m256i l = _mm256_set1_epi32(0);
return _mm256_extract_epi32(l, 7);
]])],
[ AC_MSG_RESULT(yes); enable_avx2=yes; AC_DEFINE(ENABLE_AVX2, 1, [Define this symbol to build code that uses AVX2 intrinsics]) ],
[ AC_MSG_RESULT(no)]
)
CXXFLAGS="$TEMP_CXXFLAGS"
TEMP_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS $SHANI_CXXFLAGS"
AC_MSG_CHECKING(for SHA-NI intrinsics)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <stdint.h>
#include <immintrin.h>
]],[[
__m128i i = _mm_set1_epi32(0);
__m128i j = _mm_set1_epi32(1);
__m128i k = _mm_set1_epi32(2);
return _mm_extract_epi32(_mm_sha256rnds2_epu32(i, i, k), 0);
]])],
[ AC_MSG_RESULT(yes); enable_shani=yes; AC_DEFINE(ENABLE_SHANI, 1, [Define this symbol to build code that uses SHA-NI intrinsics]) ],
[ AC_MSG_RESULT(no)]
)
CXXFLAGS="$TEMP_CXXFLAGS"
# ARM
AX_CHECK_COMPILE_FLAG([-march=armv8-a+crc+crypto],[[ARM_CRC_CXXFLAGS="-march=armv8-a+crc+crypto"]],,[[$CXXFLAG_WERROR]])
TEMP_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS $ARM_CRC_CXXFLAGS"
AC_MSG_CHECKING(for ARM CRC32 intrinsics)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <arm_acle.h>
#include <arm_neon.h>
]],[[
__crc32cb(0, 0); __crc32ch(0, 0); __crc32cw(0, 0); __crc32cd(0, 0);
vmull_p64(0, 0);
]])],
[ AC_MSG_RESULT(yes); enable_arm_crc=yes; ],
[ AC_MSG_RESULT(no)]
)
CXXFLAGS="$TEMP_CXXFLAGS"
fi
CPPFLAGS="$CPPFLAGS -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS"
AC_ARG_WITH([utils],
[AS_HELP_STRING([--with-utils],
[build digigreen-cli digigreen-tx (default=yes)])],
[build_bitcoin_utils=$withval],
[build_bitcoin_utils=yes])
AC_ARG_ENABLE([util-cli],
[AS_HELP_STRING([--enable-util-cli],
[build digigreen-cli])],
[build_bitcoin_cli=$enableval],
[build_bitcoin_cli=$build_bitcoin_utils])
AC_ARG_ENABLE([util-tx],
[AS_HELP_STRING([--enable-util-tx],
[build digigreen-tx])],
[build_bitcoin_tx=$enableval],
[build_bitcoin_tx=$build_bitcoin_utils])
AC_ARG_WITH([libs],
[AS_HELP_STRING([--with-libs],
[build libraries (default=yes)])],
[build_bitcoin_libs=$withval],
[build_bitcoin_libs=yes])
AC_ARG_WITH([daemon],
[AS_HELP_STRING([--with-daemon],
[build digigreen daemon (default=yes)])],
[build_bitcoind=$withval],
[build_bitcoind=yes])
pkg_openssl=yes
use_pkgconfig=yes
case $host in
*mingw*)
dnl pkgconfig does more harm than good with MinGW
use_pkgconfig=no
TARGET_OS=windows
AC_CHECK_LIB([kernel32], [GetModuleFileNameA],, AC_MSG_ERROR(libkernel32 missing))
AC_CHECK_LIB([user32], [main],, AC_MSG_ERROR(libuser32 missing))
AC_CHECK_LIB([gdi32], [main],, AC_MSG_ERROR(libgdi32 missing))
AC_CHECK_LIB([comdlg32], [main],, AC_MSG_ERROR(libcomdlg32 missing))
AC_CHECK_LIB([winmm], [main],, AC_MSG_ERROR(libwinmm missing))
AC_CHECK_LIB([shell32], [SHGetSpecialFolderPathW],, AC_MSG_ERROR(libshell32 missing))
AC_CHECK_LIB([comctl32], [main],, AC_MSG_ERROR(libcomctl32 missing))
AC_CHECK_LIB([ole32], [CoCreateInstance],, AC_MSG_ERROR(libole32 missing))
AC_CHECK_LIB([oleaut32], [main],, AC_MSG_ERROR(liboleaut32 missing))
AC_CHECK_LIB([uuid], [main],, AC_MSG_ERROR(libuuid missing))
AC_CHECK_LIB([advapi32], [CryptAcquireContextW],, AC_MSG_ERROR(libadvapi32 missing))
AC_CHECK_LIB([ws2_32], [WSAStartup],, AC_MSG_ERROR(libws2_32 missing))
AC_CHECK_LIB([shlwapi], [PathRemoveFileSpecW],, AC_MSG_ERROR(libshlwapi missing))
AC_CHECK_LIB([iphlpapi], [GetAdaptersAddresses],, AC_MSG_ERROR(libiphlpapi missing))
dnl -static is interpreted by libtool, where it has a different meaning.
dnl In libtool-speak, it's -all-static.
AX_CHECK_LINK_FLAG([[-static]],[LIBTOOL_APP_LDFLAGS="$LIBTOOL_APP_LDFLAGS -all-static"])
AC_PATH_PROG([MAKENSIS], [makensis], none)
if test x$MAKENSIS = xnone; then
AC_MSG_WARN("makensis not found. Cannot create installer.")
fi
AC_PATH_TOOL(WINDRES, windres, none)
if test x$WINDRES = xnone; then
AC_MSG_ERROR("windres not found")
fi
CPPFLAGS="$CPPFLAGS -D_MT -DWIN32 -D_WINDOWS -DBOOST_THREAD_USE_LIB -D_WIN32_WINNT=0x0601 -D_WIN32_IE=0x0501 -DWIN32_LEAN_AND_MEAN"
dnl libtool insists upon adding -nostdlib and a list of objects/libs to link against.
dnl That breaks our ability to build dll's with static libgcc/libstdc++/libssp. Override
dnl its command here, with the predeps/postdeps removed, and -static inserted. Postdeps are
dnl also overridden to prevent their insertion later.
dnl This should only affect dll's.
archive_cmds_CXX="\$CC -shared \$libobjs \$deplibs \$compiler_flags -static -o \$output_objdir/\$soname \${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker \$lib"
postdeps_CXX=
dnl We require Windows 7 (NT 6.1) or later
AX_CHECK_LINK_FLAG([[-Wl,--major-subsystem-version -Wl,6 -Wl,--minor-subsystem-version -Wl,1]],[LDFLAGS="$LDFLAGS -Wl,--major-subsystem-version -Wl,6 -Wl,--minor-subsystem-version -Wl,1"],,[[$LDFLAG_WERROR]])
;;
*darwin*)
TARGET_OS=darwin
if test x$cross_compiling != xyes; then
BUILD_OS=darwin
AC_CHECK_PROG([PORT],port, port)
if test x$PORT = xport; then
dnl add default macports paths
CPPFLAGS="$CPPFLAGS -isystem /opt/local/include"
LIBS="$LIBS -L/opt/local/lib"
if test -d /opt/local/include/db62; then
CPPFLAGS="$CPPFLAGS -I/opt/local/include/db62"
LIBS="$LIBS -L/opt/local/lib/db62"
fi
fi
AC_PATH_PROGS([RSVG_CONVERT], [rsvg-convert rsvg],rsvg-convert)
AC_CHECK_PROG([BREW],brew, brew)
if test x$BREW = xbrew; then
dnl These Homebrew packages may be keg-only, meaning that they won't be found
dnl in expected paths because they may conflict with system files. Ask
dnl Homebrew where each one is located, then adjust paths accordingly.
dnl It's safe to add these paths even if the functionality is disabled by
dnl the user (--without-wallet or --without-gui for example).
openssl_prefix=`$BREW --prefix openssl 2>/dev/null`
bdb_prefix=`$BREW --prefix berkeley-db62 2>/dev/null`
qt5_prefix=`$BREW --prefix qt5 2>/dev/null`
if test x$openssl_prefix != x; then
PKG_CONFIG_PATH="$openssl_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
export PKG_CONFIG_PATH
fi
if test x$bdb_prefix != x; then
CPPFLAGS="$CPPFLAGS -I$bdb_prefix/include"
LIBS="$LIBS -L$bdb_prefix/lib"
fi
if test x$qt5_prefix != x; then
PKG_CONFIG_PATH="$qt5_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
export PKG_CONFIG_PATH
fi
fi
else
case $build_os in
*darwin*)
BUILD_OS=darwin
;;
*)
AC_PATH_TOOL([DSYMUTIL], [dsymutil], dsymutil)
AC_PATH_TOOL([INSTALLNAMETOOL], [install_name_tool], install_name_tool)
AC_PATH_TOOL([OTOOL], [otool], otool)
AC_PATH_PROGS([XORRISOFS], [xorrisofs], xorrisofs)
AC_PATH_PROGS([DMG], [dmg], dmg)
AC_PATH_PROGS([RSVG_CONVERT], [rsvg-convert rsvg],rsvg-convert)
AC_PATH_PROGS([IMAGEMAGICK_CONVERT], [convert],convert)
AC_PATH_PROGS([TIFFCP], [tiffcp],tiffcp)
dnl libtool will try to strip the static lib, which is a problem for
dnl cross-builds because strip attempts to call a hard-coded ld,
dnl which may not exist in the path. Stripping the .a is not
dnl necessary, so just disable it.
old_striplib=
;;
esac
fi
AX_CHECK_LINK_FLAG([[-Wl,-headerpad_max_install_names]], [LDFLAGS="$LDFLAGS -Wl,-headerpad_max_install_names"],, [[$LDFLAG_WERROR]])
CPPFLAGS="$CPPFLAGS -DMAC_OSX -DOBJC_OLD_DISPATCH_PROTOTYPES=0"
OBJCXXFLAGS="$CXXFLAGS"
;;
*linux*)
TARGET_OS=linux
;;
esac
if test x$use_comparison_tool != xno; then
AC_SUBST(JAVA_COMPARISON_TOOL, $use_comparison_tool)
fi
if test x$use_comparison_tool_reorg_tests != xno; then
if test x$use_comparison_tool = x; then
AC_MSG_ERROR("comparison tool reorg tests but comparison tool was not specified")
fi
AC_SUBST(COMPARISON_TOOL_REORG_TESTS, 1)
else
AC_SUBST(COMPARISON_TOOL_REORG_TESTS, 0)
fi
if test x$use_extended_rpc_tests != xno; then
AC_SUBST(EXTENDED_RPC_TESTS, -extended)
fi
if test x$use_lcov = xyes; then
if test x$LCOV = x; then
AC_MSG_ERROR("lcov testing requested but lcov not found")
fi
if test x$GCOV = x; then
AC_MSG_ERROR("lcov testing requested but gcov not found")
fi
if test x$JAVA = x; then
AC_MSG_ERROR("lcov testing requested but java not found")
fi
if test x$PYTHON = x; then
AC_MSG_ERROR("lcov testing requested but python not found")
fi
if test x$GENHTML = x; then
AC_MSG_ERROR("lcov testing requested but genhtml not found")
fi
AC_MSG_CHECKING([whether compiler is Clang])
AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
#if defined(__clang__) && defined(__llvm__)
// Compiler is Clang
#else
# error Compiler is not Clang
#endif
]])],[
AC_MSG_RESULT([yes])
if test x$LLVM_COV = x; then
AC_MSG_ERROR([lcov testing requested but llvm-cov not found])
fi
COV_TOOL="$LLVM_COV gcov"
],[
AC_MSG_RESULT([no])
if test x$GCOV = x; then
AC_MSG_ERROR([lcov testing requested but gcov not found])
fi
COV_TOOL="$GCOV"
])
AC_SUBST(COV_TOOL)
AC_SUBST(COV_TOOL_WRAPPER, "cov_tool_wrapper.sh")
LCOV="$LCOV --gcov-tool $(pwd)/$COV_TOOL_WRAPPER"
AX_CHECK_LINK_FLAG([[--coverage]], [LDFLAGS="$LDFLAGS --coverage"],
[AC_MSG_ERROR("lcov testing requested but --coverage linker flag does not work")])
if test x$use_comparison_tool = x; then
AC_MSG_ERROR("lcov testing requested but comparison tool was not specified")
fi
LCOV="$LCOV --gcov-tool=$GCOV"
AX_CHECK_LINK_FLAG([[--coverage]], [LDFLAGS="$LDFLAGS --coverage"],
[AC_MSG_ERROR("lcov testing requested but --coverage linker flag does not work")])
AX_CHECK_COMPILE_FLAG([--coverage],[CXXFLAGS="$CXXFLAGS --coverage"],
[AC_MSG_ERROR("lcov testing requested but --coverage flag does not work")])
CXXFLAGS="$CXXFLAGS -Og"
fi
dnl Check for endianness
AC_C_BIGENDIAN
dnl Check for pthread compile/link requirements
AX_PTHREAD
dnl The following macro will add the necessary defines to bitcoin-config.h, but
dnl they also need to be passed down to any subprojects. Pull the results out of
dnl the cache and add them to CPPFLAGS.
AC_SYS_LARGEFILE
dnl detect POSIX or GNU variant of strerror_r
AC_FUNC_STRERROR_R
if test x$ac_cv_sys_file_offset_bits != x &&
test x$ac_cv_sys_file_offset_bits != xno &&
test x$ac_cv_sys_file_offset_bits != xunknown; then
CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits"
fi
if test x$ac_cv_sys_large_files != x &&
test x$ac_cv_sys_large_files != xno &&
test x$ac_cv_sys_large_files != xunknown; then
CPPFLAGS="$CPPFLAGS -D_LARGE_FILES=$ac_cv_sys_large_files"
fi
AX_CHECK_LINK_FLAG([[-Wl,--large-address-aware]], [LDFLAGS="$LDFLAGS -Wl,--large-address-aware"])
AX_GCC_FUNC_ATTRIBUTE([visibility])
AX_GCC_FUNC_ATTRIBUTE([dllexport])
AX_GCC_FUNC_ATTRIBUTE([dllimport])
if test x$use_glibc_compat != xno; then
#glibc absorbed clock_gettime in 2.17. librt (its previous location) is safe to link
#in anyway for back-compat.
AC_CHECK_LIB([rt],[clock_gettime],, AC_MSG_ERROR(lib missing))
#__fdelt_chk's params and return type have changed from long unsigned int to long int.
# See which one is present here.
AC_MSG_CHECKING(__fdelt_chk type)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#ifdef _FORTIFY_SOURCE
#undef _FORTIFY_SOURCE
#endif
#define _FORTIFY_SOURCE 2
#include <sys/select.h>
extern "C" long unsigned int __fdelt_warn(long unsigned int);]],[[]])],
[ fdelt_type="long unsigned int"],
[ fdelt_type="long int"])
AC_MSG_RESULT($fdelt_type)
AC_DEFINE_UNQUOTED(FDELT_TYPE, $fdelt_type,[parameter and return value type for __fdelt_chk])
AX_CHECK_LINK_FLAG([[-Wl,--wrap=__divmoddi4]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=__divmoddi4"])
AX_CHECK_LINK_FLAG([[-Wl,--wrap=log2f]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=log2f"])
AX_CHECK_LINK_FLAG([[-Wl,--wrap=glob]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=glob"])
AX_CHECK_LINK_FLAG([[-Wl,--wrap=log]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=log"])
AX_CHECK_LINK_FLAG([[-Wl,--wrap=pow]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=pow"])
AX_CHECK_LINK_FLAG([[-Wl,--wrap=exp]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=exp"])
AX_CHECK_LINK_FLAG([[-Wl,--wrap=explicit_bzero]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=explicit_bzero"])
AX_CHECK_LINK_FLAG([[-Wl,--wrap=fcntl]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=fcntl"])
case $host in
# Need to add glob64 for 32bit builds
i?86-* | arm*)
AX_CHECK_LINK_FLAG([[-Wl,--wrap=glob64]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=glob64"])
AX_CHECK_LINK_FLAG([[-Wl,--wrap=fcntl64]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=fcntl64"])
;;
esac
else
AC_SEARCH_LIBS([clock_gettime],[rt])
fi
if test x$TARGET_OS != xwindows; then
dnl All windows code is PIC, forcing it on just adds useless compile warnings
AX_CHECK_COMPILE_FLAG([-fPIC],[PIC_FLAGS="-fPIC"])
fi
dnl All versions of gcc that we commonly use for building are subject to bug
dnl https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90348. To work around that, set
dnl -fstack-reuse=none for all gcc builds. (Only gcc understands this flag)
AX_CHECK_COMPILE_FLAG([-fstack-reuse=none],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-reuse=none"])
if test x$use_hardening != xno; then
use_hardening=yes
AX_CHECK_COMPILE_FLAG([-Wstack-protector],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -Wstack-protector"])
AX_CHECK_COMPILE_FLAG([-fstack-protector-all],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-protector-all"])
dnl -fcf-protection used with Clang 7 causes ld to emit warnings:
dnl ld: error: ... <corrupt x86 feature size: 0x8>
dnl Use CHECK_LINK_FLAG & --fatal-warnings to ensure we won't use the flag in this case.
AX_CHECK_LINK_FLAG([-fcf-protection=full],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fcf-protection=full"],, [[$LDFLAG_WERROR]])
case $host in
*mingw*)
dnl stack-clash-protection doesn't currently work, and likely should just be skipped for Windows.
dnl See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90458 for more details.
;;
*)
AX_CHECK_COMPILE_FLAG([-fstack-clash-protection], [HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-clash-protection"], [], [$CXXFLAG_WERROR])
;;
esac
dnl When enable_debug is yes, all optimizations are disabled.
dnl However, FORTIFY_SOURCE requires that there is some level of optimization, otherwise it does nothing and just creates a compiler warning.
dnl Since FORTIFY_SOURCE is a no-op without optimizations, do not enable it when enable_debug is yes.
if test x$enable_debug != xyes; then
AX_CHECK_PREPROC_FLAG([-D_FORTIFY_SOURCE=2],[
AX_CHECK_PREPROC_FLAG([-U_FORTIFY_SOURCE],[
HARDENED_CPPFLAGS="$HARDENED_CPPFLAGS -U_FORTIFY_SOURCE"
])
HARDENED_CPPFLAGS="$HARDENED_CPPFLAGS -D_FORTIFY_SOURCE=2"
])
fi
AX_CHECK_LINK_FLAG([[-Wl,--enable-reloc-section]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,--enable-reloc-section"],, [[$LDFLAG_WERROR]])
AX_CHECK_LINK_FLAG([[-Wl,--dynamicbase]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,--dynamicbase"],, [[$LDFLAG_WERROR]])
AX_CHECK_LINK_FLAG([[-Wl,--nxcompat]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,--nxcompat"],, [[$LDFLAG_WERROR]])
AX_CHECK_LINK_FLAG([[-Wl,--high-entropy-va]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,--high-entropy-va"],, [[$LDFLAG_WERROR]])
AX_CHECK_LINK_FLAG([[-Wl,-z,relro]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,-z,relro"],, [[$LDFLAG_WERROR]])
AX_CHECK_LINK_FLAG([[-Wl,-z,now]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,-z,now"],, [[$LDFLAG_WERROR]])
AX_CHECK_LINK_FLAG([[-Wl,-z,separate-code]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,-z,separate-code"],, [[$LDFLAG_WERROR]])
AX_CHECK_LINK_FLAG([[-fPIE -pie]], [PIE_FLAGS="-fPIE"; HARDENED_LDFLAGS="$HARDENED_LDFLAGS -pie"],, [[$CXXFLAG_WERROR]])
case $host in
*mingw*)
AC_CHECK_LIB([ssp], [main],, AC_MSG_ERROR(libssp missing))
;;
esac
fi
dnl These flags are specific to ld64, and may cause issues with other linkers.
dnl For example: GNU ld will interpret -dead_strip as -de and then try and use
dnl "ad_strip" as the symbol for the entry point.
if test x$TARGET_OS = xdarwin; then
AX_CHECK_LINK_FLAG([[-Wl,-dead_strip]], [LDFLAGS="$LDFLAGS -Wl,-dead_strip"],, [[$LDFLAG_WERROR]])
AX_CHECK_LINK_FLAG([[-Wl,-dead_strip_dylibs]], [LDFLAGS="$LDFLAGS -Wl,-dead_strip_dylibs"],, [[$LDFLAG_WERROR]])
AX_CHECK_LINK_FLAG([[-Wl,-bind_at_load]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,-bind_at_load"],, [[$LDFLAG_WERROR]])
fi
AC_CHECK_HEADERS([endian.h sys/endian.h byteswap.h stdio.h stdlib.h unistd.h strings.h sys/types.h sys/stat.h sys/select.h sys/prctl.h sys/sysctl.h vm/vm_param.h sys/vmmeter.h sys/resources.h])
AC_CHECK_DECLS([getifaddrs, freeifaddrs],[CHECK_SOCKET],,
[#include <sys/types.h>
#include <ifaddrs.h>]
)
AC_CHECK_DECLS([strnlen])
dnl These are used for daemonization in digigreend
AC_CHECK_DECLS([fork])
AC_CHECK_DECLS([setsid])
AC_CHECK_DECLS([pipe2])
AC_CHECK_DECLS([le16toh, le32toh, le64toh, htole16, htole32, htole64, be16toh, be32toh, be64toh, htobe16, htobe32, htobe64],,,
[#if HAVE_ENDIAN_H
#include <endian.h>
#elif HAVE_SYS_ENDIAN_H
#include <sys/endian.h>
#endif])
AC_CHECK_DECLS([bswap_16, bswap_32, bswap_64],,,
[#if HAVE_BYTESWAP_H
#include <byteswap.h>
#endif])
AC_MSG_CHECKING(for __builtin_clzl)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]], [[
(void) __builtin_clzl(0);
]])],
[ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_BUILTIN_CLZL, 1, [Define this symbol if you have __builtin_clzl])],
[ AC_MSG_RESULT(no)]
)
AC_MSG_CHECKING(for __builtin_clzll)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]], [[
(void) __builtin_clzll(0);
]])],
[ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_BUILTIN_CLZLL, 1, [Define this symbol if you have __builtin_clzll])],
[ AC_MSG_RESULT(no)]
)
dnl Check for malloc_info (for memory statistics information in getmemoryinfo)
AC_MSG_CHECKING(for getmemoryinfo)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <malloc.h>]],
[[ int f = malloc_info(0, NULL); ]])],
[ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_MALLOC_INFO, 1,[Define this symbol if you have malloc_info]) ],
[ AC_MSG_RESULT(no)]
)
dnl Check for mallopt(M_ARENA_MAX) (to set glibc arenas)
AC_MSG_CHECKING(for mallopt M_ARENA_MAX)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <malloc.h>]],
[[ mallopt(M_ARENA_MAX, 1); ]])],
[ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_MALLOPT_ARENA_MAX, 1,[Define this symbol if you have mallopt with M_ARENA_MAX]) ],
[ AC_MSG_RESULT(no)]
)
dnl Check for posix_fallocate
AC_MSG_CHECKING(for posix_fallocate)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
// same as in src/util/system.cpp
#ifdef __linux__
#ifdef _POSIX_C_SOURCE
#undef _POSIX_C_SOURCE
#endif
#define _POSIX_C_SOURCE 200112L
#endif // __linux__
#include <fcntl.h>]],
[[ int f = posix_fallocate(0, 0, 0); ]])],
[ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_POSIX_FALLOCATE, 1,[Define this symbol if you have posix_fallocate]) ],
[ AC_MSG_RESULT(no)]
)
AC_MSG_CHECKING([for default visibility attribute])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
int foo(void) __attribute__((visibility("default")));
int main(){}
])],
[
AC_DEFINE(HAVE_DEFAULT_VISIBILITY_ATTRIBUTE,1,[Define if the visibility attribute is supported.])
AC_MSG_RESULT(yes)
],
[
AC_MSG_RESULT(no)
if test x$use_reduce_exports = xyes; then
AC_MSG_ERROR([Cannot find a working visibility attribute. Use --disable-reduce-exports.])
fi
]
)
AC_MSG_CHECKING([for dllexport attribute])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
__declspec(dllexport) int foo(void);
int main(){}
])],
[
AC_DEFINE(HAVE_DLLEXPORT_ATTRIBUTE,1,[Define if the dllexport attribute is supported.])
AC_MSG_RESULT(yes)
],
[AC_MSG_RESULT(no)]
)
dnl thread_local is currently disabled when building with glibc back compat.
dnl Our minimum supported glibc is 2.17, however support for thread_local
dnl did not arrive in glibc until 2.18.
if test "x$use_thread_local" = xyes || { test "x$use_thread_local" = xauto && test "x$use_glibc_compat" = xno; }; then
TEMP_LDFLAGS="$LDFLAGS"
LDFLAGS="$TEMP_LDFLAGS $PTHREAD_CFLAGS"
AC_MSG_CHECKING([for thread_local support])
AC_LINK_IFELSE([AC_LANG_SOURCE([
#include <thread>
static thread_local int foo = 0;
static void run_thread() { foo++;}
int main(){
for(int i = 0; i < 10; i++) { std::thread(run_thread).detach();}
return foo;
}
])],
[
case $host in
*mingw*)
dnl mingw32's implementation of thread_local has also been shown to behave
dnl erroneously under concurrent usage; see:
dnl https://gist.github.com/jamesob/fe9a872051a88b2025b1aa37bfa98605
AC_MSG_RESULT(no)
;;
*freebsd*)
dnl FreeBSD's implementation of thread_local is also buggy (per
dnl https://groups.google.com/d/msg/bsdmailinglist/22ncTZAbDp4/Dii_pII5AwAJ)
AC_MSG_RESULT(no)
;;
*)
AC_DEFINE(HAVE_THREAD_LOCAL,1,[Define if thread_local is supported.])
AC_MSG_RESULT(yes)
;;
esac
],
[