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configure.ac
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dnl require autoconf 2.60 (AS_ECHO/AS_ECHO_N)
AC_PREREQ([2.60])
define(_CLIENT_VERSION_MAJOR, 5)
define(_CLIENT_VERSION_MINOR, 4)
define(_CLIENT_VERSION_REVISION, 9)
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,[[Gridcoin]])
AC_INIT([Gridcoin],[_CLIENT_VERSION_MAJOR._CLIENT_VERSION_MINOR._CLIENT_VERSION_REVISION],[https://github.com/gridcoin/Gridcoin-Research/issues],[gridcoin],[https://gridcoin.us/])
AC_CONFIG_SRCDIR([src/main.cpp])
AC_CONFIG_HEADERS([src/config/gridcoin-config.h])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([build-aux/m4])
m4_ifndef([PKG_PROG_PKG_CONFIG], [m4_fatal([PKG_PROG_PKG_CONFIG macro not found. Please install pkg-config and re-run autogen.sh])])
PKG_PROG_PKG_CONFIG
if test "$PKG_CONFIG" = ""; then
AC_MSG_ERROR([pkg-config not found])
fi
GRIDCOIN_DAEMON_NAME=gridcoinresearchd
GRIDCOIN_GUI_NAME=gridcoinresearch
AC_CANONICAL_HOST
AH_TOP([#ifndef GRIDCOIN_CONFIG_H])
AH_TOP([#define GRIDCOIN_CONFIG_H])
AH_BOTTOM([#endif //GRIDCOIN_CONFIG_H])
dnl faketime breaks configure and is only needed for make. Disable it here.
unset FAKETIME
dnl Automake init set-up and checks
AM_INIT_AUTOMAKE([no-define subdir-objects foreign])
dnl faketime messes with timestamps and causes configure to be re-run.
dnl --disable-maintainer-mode can be used to bypass this.
AM_MAINTAINER_MODE([enable])
dnl make the compilation flags quiet unless V=1 is used
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
dnl Compiler checks (here before libtool).
if test "${CXXFLAGS+set}" = "set"; then
CXXFLAGS_overridden=yes
else
CXXFLAGS_overridden=no
fi
AC_PROG_CXX
AM_PROG_AS
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.
case $host in
*mingw*)
lt_cv_deplibs_check_method="pass_all"
;;
esac
dnl Require C++17 compiler (no GNU extensions)
AX_CXX_COMPILE_STDCXX([17], [noext], [mandatory], [nodefault])
dnl Check if -latomic is required for <std::atomic>
CHECK_ATOMIC
dnl Unless the user specified OBJCXX, force it to be the same as CXX. This ensures
dnl that we get the same -std flags for both.
m4_ifdef([AC_PROG_OBJCXX],[
if test "${OBJCXX+set}" = ""; then
OBJCXX="${CXX}"
fi
AC_PROG_OBJCXX
])
dnl Libtool init checks.
LT_INIT([pic-only win32-dll])
dnl Check/return PATH for base programs.
AC_PATH_TOOL(AR, ar)
AC_PATH_TOOL(RANLIB, ranlib)
AC_PATH_TOOL(STRIP, strip)
AC_PATH_TOOL(GCOV, gcov)
AC_PATH_PROG(LCOV, lcov)
dnl Python 3.6 is specified in .python-version and should be used if available, see doc/dependencies.md
AC_PATH_PROGS([PYTHON], [python3.6 python3.7 python3.8 python3.9 python3.10 python3.11 python3 python])
AC_PATH_PROG(GENHTML, genhtml)
AC_PATH_PROG([GIT], [git])
AC_PATH_PROG(CCACHE,ccache)
AC_PATH_PROG(XGETTEXT,xgettext)
AC_PATH_PROG(HEXDUMP,hexdump)
AC_PATH_TOOL([OBJDUMP], [objdump])
AC_PATH_TOOL(READELF, readelf)
AC_PATH_TOOL(CPPFILT, c++filt)
AC_PATH_TOOL(OBJCOPY, objcopy)
AC_PATH_PROG(DOXYGEN, doxygen)
AM_CONDITIONAL([HAVE_DOXYGEN], [test -n "$DOXYGEN"])
AC_ARG_VAR(PYTHONPATH, Augments the default search path for python module files)
# Enable wallet
AC_ARG_ENABLE([wallet],
[AS_HELP_STRING([--disable-wallet],
[disable wallet (enabled by default)])],
[enable_wallet=$enableval],
[enable_wallet=yes])
AC_ARG_WITH([miniupnpc],
[AS_HELP_STRING([--with-miniupnpc],
[enable UPNP (default is yes if libminiupnpc is found)])],
[use_upnp=$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=$enableval],
[use_bench=yes])
AC_ARG_ENABLE([extended-functional-tests],
AS_HELP_STRING([--enable-extended-functional-tests],[enable expensive functional tests when using lcov (default no)]),
[use_extended_functional_tests=$enableval],
[use_extended_functional_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=$withval],
[use_qr=yes])
AC_ARG_ENABLE([hardening],
[AS_HELP_STRING([--disable-hardening],
[do not attempt to harden the resulting executables (default is to harden)])],
[use_hardening=$enableval],
[use_hardening=yes])
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])
AC_ARG_ENABLE([lcov],
[AS_HELP_STRING([--enable-lcov],
[enable lcov testing (default is no)])],
[use_lcov=yes],
[use_lcov=no])
AC_ARG_ENABLE([lcov-branch-coverage],
[AS_HELP_STRING([--enable-lcov-branch-coverage],
[enable lcov testing branch coverage (default is no)])],
[use_lcov_branch=yes],
[use_lcov_branch=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 enable if there is platform support)])],
[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])
AC_ARG_ENABLE([embedded-bdb],
[AS_HELP_STRING([--disable-embedded-bdb],
[use embedded bdb instead of the system one (enabled by default)])],
[enable_embedded_bdb=$enableval],
[enable_embedded_bdb=yes])
if test "$use_asm" = "yes"; then
AC_DEFINE(USE_ASM, 1, [Define this symbol to build in assembly routines])
fi
BUILD_TARGET=`$CC -dumpmachine 2>&1`
case $BUILD_TARGET in
x86_64-*-*|amd64-*-*)
have_x86_64=true
;;
esac
# Enable debug
AC_ARG_ENABLE([debug],
[AS_HELP_STRING([--enable-debug],
[use debug compiler flags and macros (default is no)])],
[enable_debug=$enableval],
[enable_debug=no])
dnl Enable different -fsanitize options
AC_ARG_WITH([sanitizers],
[AS_HELP_STRING([--with-sanitizers],
[comma separated list of extra sanitizers to build with (default is none enabled)])],
[use_sanitizers=$withval])
# Turn warnings into errors
AC_ARG_ENABLE([werror],
[AS_HELP_STRING([--enable-werror],
[Treat certain compiler warnings as errors (default is no)])],
[enable_werror=$enableval],
[enable_werror=no])
AC_LANG_PUSH([C++])
AX_CHECK_COMPILE_FLAG([-Werror],[CXXFLAG_WERROR="-Werror"],[CXXFLAG_WERROR=""])
if test "$enable_debug" = "yes"; then
CPPFLAGS="$CPPFLAGS -DDEBUG -DDEBUG_LOCKORDER"
if test "$GCC" = "yes"; then
CFLAGS="$CFLAGS -g3 -O0"
fi
if test "$GXX" = "yes"; then
CXXFLAGS="$CXXFLAGS -g3 -O0"
fi
fi
if test "$use_sanitizers" != ""; then
dnl First check if the compiler accepts flags. If an incompatible pair like
dnl -fsanitize=address,thread is used here, this check will fail. This will also
dnl fail if a bad argument is passed, e.g. -fsanitize=undfeined
AX_CHECK_COMPILE_FLAG(
[-fsanitize=$use_sanitizers],
[SANITIZER_CXXFLAGS="-fsanitize=$use_sanitizers"],
[AC_MSG_ERROR([compiler did not accept requested flags])])
dnl Some compilers (e.g. GCC) require additional libraries like libasan,
dnl libtsan, libubsan, etc. Make sure linking still works with the sanitize
dnl flag. This is a separate check so we can give a better error message when
dnl the sanitize flags are supported by the compiler but the actual sanitizer
dnl libs are missing.
AX_CHECK_LINK_FLAG(
[-fsanitize=$use_sanitizers],
[SANITIZER_LDFLAGS="-fsanitize=$use_sanitizers"],
[AC_MSG_ERROR([linker did not accept requested flags, you are missing required libraries])],
[],
[AC_LANG_PROGRAM([[
#include <cstdint>
#include <cstddef>
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { return 0; }
__attribute__((weak)) // allow for libFuzzer linking
]],[[]])])
fi
ERROR_CXXFLAGS=
if test "$enable_werror" = "yes"; then
if test "$CXXFLAG_WERROR" = ""; then
AC_MSG_ERROR("enable-werror set but -Werror is not usable")
fi
AX_CHECK_COMPILE_FLAG([-Werror=vla],[ERROR_CXXFLAGS="$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"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=unreachable-code-loop-increment],[ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=unreachable-code-loop-increment"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Werror=mismatched-tags], [ERROR_CXXFLAGS="$ERROR_CXXFLAGS -Werror=mismatched-tags"], [], [$CXXFLAG_WERROR])
fi
if test "$CXXFLAGS_overridden" = "no"; then
AX_CHECK_COMPILE_FLAG([-Wall],[CXXFLAGS="$CXXFLAGS -Wall"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wextra],[CXXFLAGS="$CXXFLAGS -Wextra"],,[[$CXXFLAG_WERROR]])
dnl some compilers will ignore -Wformat-security without -Wformat, so just combine the two here.
AX_CHECK_COMPILE_FLAG([-Wformat -Wformat-security],[CXXFLAGS="$CXXFLAGS -Wformat -Wformat-security"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wvla],[CXXFLAGS="$CXXFLAGS -Wvla"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wshadow-field],[CXXFLAGS="$CXXFLAGS -Wshadow-field"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wthread-safety],[CXXFLAGS="$CXXFLAGS -Wthread-safety"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wloop-analysis],[CXXFLAGS="$CXXFLAGS -Wloop-analysis"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wunused-member-function],[CXXFLAGS="$CXXFLAGS -Wunused-member-function"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wdate-time],[CXXFLAGS="$CXXFLAGS -Wdate-time"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wconditional-uninitialized],[CXXFLAGS="$CXXFLAGS -Wconditional-uninitialized"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wduplicated-branches],[CXXFLAGS="$CXXFLAGS -Wduplicated-branches"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wduplicated-cond],[CXXFLAGS="$CXXFLAGS -Wduplicated-cond"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wlogical-op],[CXXFLAGS="$CXXFLAGS -Wlogical-op"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Woverloaded-virtual],[CXXFLAGS="$CXXFLAGS -Woverloaded-virtual"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wunreachable-code-loop-increment],[CXXFLAGS="$CXXFLAGS -Wunreachable-code-loop-increment"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wimplicit-fallthrough], [CXXFLAGS="$CXXFLAGS -Wimplicit-fallthrough"], [], [$CXXFLAG_WERROR])
## Some compilers (gcc) ignore unknown -Wno-* options, but warn about all
## unknown options if any other warning is produced. Test the -Wfoo case, and
## set the -Wno-foo case if it works.
AX_CHECK_COMPILE_FLAG([-Wunused-parameter],[CXXFLAGS="$CXXFLAGS -Wno-unused-parameter"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wself-assign],[CXXFLAGS="$CXXFLAGS -Wno-self-assign"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wdeprecated-register],[CXXFLAGS="$CXXFLAGS -Wno-deprecated-register"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wimplicit-fallthrough],[CXXFLAGS="$CXXFLAGS -Wno-implicit-fallthrough"],,[[$CXXFLAG_WERROR]])
dnl For Qt versions < 5.14 with GCC 9+:
AX_CHECK_COMPILE_FLAG([-Wdeprecated-copy],[CXXFLAGS="$CXXFLAGS -Wno-deprecated-copy"],,[[$CXXFLAG_WERROR]])
fi
dnl x87 FP operations on x86 hosts can break assumptions made about the floating point values.
dnl See the commit message which introduced this change for more details.
case $host in
i?86-*|x86_64-*)
AX_CHECK_COMPILE_FLAG([-msse2],[CXXFLAGS="$CXXFLAGS -msse2 -mfpmath=sse"],[AC_MSG_ERROR([SSE2 support is required on x86 targets.])],[[$CXXFLAG_WERROR]])
;;
*) ;;
esac
enable_sse42=no
enable_sse41=no
enable_avx2=no
enable_x86_shani=no
if test "$use_asm" = "yes"; 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"]],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-msse4 -msha], [X86_SHANI_CXXFLAGS="-msse4 -msha"], [], [$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 $X86_SHANI_CXXFLAGS"
AC_MSG_CHECKING([for x86 SHA-NI intrinsics])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <stdint.h>
#include <immintrin.h>
]],[[
__m128i i = _mm_set1_epi32(0);
__m128i j = _mm_set1_epi32(1);
__m128i k = _mm_set1_epi32(2);
return _mm_extract_epi32(_mm_sha256rnds2_epu32(i, i, k), 0);
]])],
[ AC_MSG_RESULT([yes]); enable_x86_shani=yes; AC_DEFINE([ENABLE_X86_SHANI], [1], [Define this symbol to build code that uses x86 SHA-NI intrinsics]) ],
[ AC_MSG_RESULT(no)]
)
CXXFLAGS="$TEMP_CXXFLAGS"
# ARM
AX_CHECK_COMPILE_FLAG([-march=armv8-a+crc+crypto],[[ARM_CRC_CXXFLAGS="-march=armv8-a+crc+crypto"]],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-march=armv8-a+crc+crypto], [ARM_SHANI_CXXFLAGS="-march=armv8-a+crc+crypto"], [], [$CXXFLAG_WERROR])
TEMP_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS $ARM_CRC_CXXFLAGS"
AC_MSG_CHECKING([for ARMv8 CRC32 intrinsics])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <arm_acle.h>
#include <arm_neon.h>
]],[[
#ifdef __aarch64__
__crc32cb(0, 0); __crc32ch(0, 0); __crc32cw(0, 0); __crc32cd(0, 0);
vmull_p64(0, 0);
#else
#error "crc32c library does not support hardware acceleration on 32-bit ARM"
#endif
]])],
[ AC_MSG_RESULT(yes); enable_arm_crc=yes; ],
[ AC_MSG_RESULT(no)]
)
CXXFLAGS="$TEMP_CXXFLAGS"
TEMP_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS $ARM_SHANI_CXXFLAGS"
AC_MSG_CHECKING([for ARMv8 SHA-NI intrinsics])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <arm_acle.h>
#include <arm_neon.h>
]],[[
uint32x4_t a, b, c;
vsha256h2q_u32(a, b, c);
vsha256hq_u32(a, b, c);
vsha256su0q_u32(a, b);
vsha256su1q_u32(a, b, c);
]])],
[ AC_MSG_RESULT([yes]); enable_arm_shani=yes; AC_DEFINE([ENABLE_ARM_SHANI], [1], [Define this symbol to build code that uses ARMv8 SHA-NI intrinsics]) ],
[ AC_MSG_RESULT([no])]
)
CXXFLAGS="$TEMP_CXXFLAGS"
fi
CPPFLAGS="$CPPFLAGS -DBOOST_SPIRIT_THREADSAFE -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS"
AC_ARG_WITH([utils],
[AS_HELP_STRING([--with-utils],
[build bitcoin-cli bitcoin-tx (default=yes)])],
[build_bitcoin_utils=$withval],
[build_bitcoin_utils=yes])
AC_ARG_WITH([libs],
[AS_HELP_STRING([--with-libs],
[build libraries (default=yes)])],
[build_bitcoin_libs=$withval],
[build_bitcoin_libs=yes])
AC_ARG_WITH([daemon],
[AS_HELP_STRING([--with-daemon],
[build gridcoinresearchd daemon (default=yes)])],
[build_gridcoinresearchd=$withval],
[build_gridcoinresearchd=yes])
case $host in
*mingw*)
TARGET_OS=windows
AC_CHECK_LIB([mingwthrd], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([kernel32], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([user32], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([gdi32], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([comdlg32], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([winspool], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([winmm], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([shell32], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([comctl32], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([ole32], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([oleaut32], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([uuid], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([rpcrt4], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([advapi32], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([ws2_32], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([mswsock], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([shlwapi], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([iphlpapi], [main],, AC_MSG_ERROR(lib missing))
AC_CHECK_LIB([crypt32], [main],, AC_MSG_ERROR(lib missing))
# -static is interpreted by libtool, where it has a different meaning.
# In libtool-speak, it's -all-static.
AX_CHECK_LINK_FLAG([[-static]],[LIBTOOL_APP_LDFLAGS="$LIBTOOL_APP_LDFLAGS -all-static"])
AC_PATH_PROG([MAKENSIS], [makensis], none)
if test "$MAKENSIS" = "none"; then
AC_MSG_WARN("makensis not found. Cannot create installer.")
fi
AC_PATH_TOOL(WINDRES, windres, none)
if test "$WINDRES" = "none"; then
AC_MSG_ERROR("windres not found")
fi
CPPFLAGS="$CPPFLAGS -D_MT -DWIN32 -D_WINDOWS -DBOOST_THREAD_USE_LIB -D_WIN32_WINNT=0x0601"
case $host in
i?86-*) WINDOWS_BITS=32 ;;
x86_64-*) WINDOWS_BITS=64 ;;
*) AC_MSG_ERROR("Could not determine win32/win64 for installer") ;;
esac
AC_SUBST(WINDOWS_BITS)
dnl libtool insists upon adding -nostdlib and a list of objects/libs to link against.
dnl That breaks our ability to build dll's with static libgcc/libstdc++/libssp. Override
dnl its command here, with the predeps/postdeps removed, and -static inserted. Postdeps are
dnl also overridden to prevent their insertion later.
dnl This should only affect dll's.
archive_cmds_CXX="\$CC -shared \$libobjs \$deplibs \$compiler_flags -static -o \$output_objdir/\$soname \${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker \$lib"
postdeps_CXX=
dnl We require Windows 7 (NT 6.1) or later
AX_CHECK_LINK_FLAG([[-Wl,--major-subsystem-version -Wl,6 -Wl,--minor-subsystem-version -Wl,1]],[LDFLAGS="$LDFLAGS -Wl,--major-subsystem-version -Wl,6 -Wl,--minor-subsystem-version -Wl,1"],,[[$LDFLAG_WERROR]])
;;
*darwin*)
TARGET_OS=darwin
if test "$cross_compiling" != "yes"; then
BUILD_OS=darwin
AC_PATH_PROGS([RSVG_CONVERT], [rsvg-convert rsvg],rsvg-convert)
AC_CHECK_PROG([BREW],brew, brew)
if test "$BREW" = "brew"; then
dnl These Homebrew packages may be keg-only, meaning that they won't be found
dnl in expected paths because they may conflict with system files. Ask
dnl Homebrew where each one is located, then adjust paths accordingly.
dnl It's safe to add these paths even if the functionality is disabled by
dnl the user (--without-wallet or --without-gui for example).
openssl_prefix=`$BREW --prefix [email protected] 2>/dev/null`
qt5_prefix=`$BREW --prefix qt@5 2>/dev/null`
if test "$openssl_prefix" != ""; then
PKG_CONFIG_PATH="$openssl_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
export PKG_CONFIG_PATH
fi
if test "$qt5_prefix" != ""; then
PKG_CONFIG_PATH="$qt5_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
export PKG_CONFIG_PATH
fi
fi
else
case $build_os in
*darwin*)
BUILD_OS=darwin
;;
*)
AC_PATH_TOOL([DSYMUTIL], [dsymutil], dsymutil)
AC_PATH_TOOL([INSTALLNAMETOOL], [install_name_tool], install_name_tool)
AC_PATH_PROGS([XORRISOFS], [xorrisofs], xorrisofs)
AC_PATH_PROGS([DMG], [dmg], dmg)
AC_PATH_PROGS([RSVG_CONVERT], [rsvg-convert rsvg],rsvg-convert)
AC_PATH_PROGS([IMAGEMAGICK_CONVERT], [convert],convert)
AC_PATH_PROGS([TIFFCP], [tiffcp],tiffcp)
dnl libtool will try to strip the static lib, which is a problem for
dnl cross-builds because strip attempts to call a hard-coded ld,
dnl which may not exist in the path. Stripping the .a is not
dnl necessary, so just disable it.
old_striplib=
;;
esac
fi
AX_CHECK_LINK_FLAG([[-Wl,-headerpad_max_install_names]], [LDFLAGS="$LDFLAGS -Wl,-headerpad_max_install_names"])
CPPFLAGS="$CPPFLAGS -DMAC_OSX"
OBJCXXFLAGS="$CXXFLAGS"
;;
*linux*)
TARGET_OS=linux
LIBS="$LIBS -lrt"
;;
*freebsd*)
;;
*openbsd*)
;;
*)
OTHER_OS=`echo ${host_os} | awk '{print toupper($0)}'`
AC_MSG_WARN([Guessing LevelDB OS as OS_${OTHER_OS}, please check whether this is correct, if not add an entry to configure.ac.])
;;
esac
dnl Suppress ABI compatibility warnings for ARM:
dnl
dnl "note: parameter passing for argument of type [...] changed in GCC 7.1"
dnl
dnl These notices remind that code compiled with GCC 7.1+ are not ABI compatible
dnl with environments built with previous GCC versions. We can remove this block
dnl when the compiler no longer emits these warnings.
dnl
case "$host" in arm-*)
AC_MSG_WARN([Disabled ARM warnings for GCC 7.1 ABI compatibility.])
CXXFLAGS="$CXXFLAGS -Wno-psabi"
esac
if test "$enable_debug" = "yes"; then
if test "$GCC" = "yes"; then
if test "$TARGET_OS" = "windows"; then
CFLAGS="$CFLAGS -O1"
fi
fi
if test "$GXX" = "yes"; then
if test "$TARGET_OS" = "windows"; then
CXXFLAGS="$CXXFLAGS -O1"
fi
fi
fi
if test "$use_extended_functional_tests" != "no"; then
AC_SUBST(EXTENDED_FUNCTIONAL_TESTS, --extended)
fi
if test "$use_lcov" = "yes"; then
if test "$LCOV" = ""; then
AC_MSG_ERROR("lcov testing requested but lcov not found")
fi
if test "$GCOV" = ""; then
AC_MSG_ERROR("lcov testing requested but gcov not found")
fi
if test "$PYTHON" = ""; then
AC_MSG_ERROR("lcov testing requested but python not found")
fi
if test "$GENHTML" = ""; then
AC_MSG_ERROR("lcov testing requested but genhtml not found")
fi
LCOV="$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="$CXXFLAGS --coverage"],
[AC_MSG_ERROR("lcov testing requested but --coverage flag does not work")])
AC_DEFINE(USE_COVERAGE, 1, [Define this symbol if coverage is enabled])
CXXFLAGS="$CXXFLAGS -Og"
fi
if test "$use_lcov_branch" != "no"; then
AC_SUBST(LCOV_OPTS, "$LCOV_OPTS --rc lcov_branch_coverage=1")
fi
dnl Check for endianness
AC_C_BIGENDIAN
dnl Check for pthread compile/link requirements
AX_PTHREAD
# The following macro will add the necessary defines to gridcoin-config.h, but
# they also need to be passed down to any subprojects. Pull the results out of
# the cache and add them to CPPFLAGS.
AC_SYS_LARGEFILE
# detect POSIX or GNU variant of strerror_r
AC_FUNC_STRERROR_R
if test "$ac_cv_sys_file_offset_bits" != "" &&
test "$ac_cv_sys_file_offset_bits" != "no" &&
test "$ac_cv_sys_file_offset_bits" != "unknown"; then
CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits"
fi
if test "$ac_cv_sys_large_files" != "" &&
test "$ac_cv_sys_large_files" != "no" &&
test "$ac_cv_sys_large_files" != "unknown"; then
CPPFLAGS="$CPPFLAGS -D_LARGE_FILES=$ac_cv_sys_large_files"
fi
AX_CHECK_LINK_FLAG([[-Wl,--large-address-aware]], [LDFLAGS="$LDFLAGS -Wl,--large-address-aware"])
AX_GCC_FUNC_ATTRIBUTE([visibility])
AX_GCC_FUNC_ATTRIBUTE([dllexport])
AX_GCC_FUNC_ATTRIBUTE([dllimport])
AC_SEARCH_LIBS([clock_gettime],[rt])
if test "$TARGET_OS" != "windows"; then
# All windows code is PIC, forcing it on just adds useless compile warnings
AX_CHECK_COMPILE_FLAG([-fPIC],[PIC_FLAGS="-fPIC"])
fi
# All versions of gcc that we commonly use for building are subject to bug
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90348. To work around that, set
# -fstack-reuse=none for all gcc builds. (Only gcc understands this flag)
AX_CHECK_COMPILE_FLAG([-fstack-reuse=none],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-reuse=none"])
if test "$use_hardening" != "no"; then
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"])
case $host in
i686-w64-mingw32)
dnl Control-Flow Enforcement Technology (CET) does not appear to work for mingw for i686 (32-bit)
dnl When it is enabled, unstable executables result. Disable for now.
;;
*)
AX_CHECK_COMPILE_FLAG([-fcf-protection=full],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fcf-protection=full"])
;;
esac
case $host in
*mingw*)
dnl stack-clash-protection doesn't compile with GCC 10 and earlier.
dnl In any case, it is a no-op for Windows.
dnl See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90458 for more details.
;;
*)
AX_CHECK_COMPILE_FLAG([-fstack-clash-protection], [HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-clash-protection"], [], [$CXXFLAG_WERROR])
;;
esac
if test "$enable_debug" != "yes"; 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,--dynamicbase]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,--dynamicbase"])
AX_CHECK_LINK_FLAG([[-Wl,--nxcompat]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,--nxcompat"])
AX_CHECK_LINK_FLAG([[-Wl,--high-entropy-va]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,--high-entropy-va"])
AX_CHECK_LINK_FLAG([[-Wl,-z,relro]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,-z,relro"])
AX_CHECK_LINK_FLAG([[-Wl,-z,now]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,-z,now"])
AX_CHECK_LINK_FLAG([[-fPIE -pie]], [PIE_FLAGS="-fPIE"; HARDENED_LDFLAGS="$HARDENED_LDFLAGS -pie"],, [[$CXXFLAG_WERROR]])
case $host in
*mingw*)
AC_CHECK_LIB([ssp], [main],, AC_MSG_ERROR(lib missing))
;;
esac
fi
dnl this flag screws up non-darwin gcc even when the check fails. special-case it.
if test "$TARGET_OS" = "darwin"; then
AX_CHECK_LINK_FLAG([[-Wl,-dead_strip]], [LDFLAGS="$LDFLAGS -Wl,-dead_strip"])
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])
AC_CHECK_DECLS([strnlen])
dnl These are used for daemonization in bitcoind
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 MSG_NOSIGNAL
AC_MSG_CHECKING(for MSG_NOSIGNAL)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/socket.h>]],
[[ int f = MSG_NOSIGNAL; ]])],
[ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_MSG_NOSIGNAL, 1,[Define this symbol if you have MSG_NOSIGNAL]) ],
[ AC_MSG_RESULT(no)]
)
dnl Check for MSG_DONTWAIT
AC_MSG_CHECKING(for MSG_DONTWAIT)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/socket.h>]],
[[ int f = MSG_DONTWAIT; ]])],
[ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_MSG_DONTWAIT, 1,[Define this symbol if you have MSG_DONTWAIT]) ],
[ 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)]
)
AC_MSG_CHECKING([for visibility attribute])
AC_LINK_IFELSE([AC_LANG_SOURCE([
int foo_def( void ) __attribute__((visibility("default")));
int main(){}
])],
[
AC_DEFINE(HAVE_VISIBILITY_ATTRIBUTE,1,[Define if the visibility attribute is supported.])
AC_MSG_RESULT(yes)
],
[
AC_MSG_RESULT(no)
if test "$use_reduce_exports" = "yes"; then
AC_MSG_ERROR([Cannot find a working visibility attribute. Use --disable-reduce-exports.])
fi
]
)
have_any_system=no
AC_MSG_CHECKING([for std::system])
AC_LINK_IFELSE(
[ AC_LANG_PROGRAM(
[[ #include <cstdlib> ]],
[[ int nErr = std::system(""); ]]
)],
[ AC_MSG_RESULT(yes); have_any_system=yes],
[ AC_MSG_RESULT(no) ]
)
AC_MSG_CHECKING([for ::_wsystem])
AC_LINK_IFELSE(
[ AC_LANG_PROGRAM(
[[ ]],
[[ int nErr = ::_wsystem(""); ]]
)],
[ AC_MSG_RESULT(yes); have_any_system=yes],
[ AC_MSG_RESULT(no) ]
)
if test "x$have_any_system" != "xno"; then
AC_DEFINE(HAVE_SYSTEM, 1, Define to 1 if std::system or ::wsystem is available.)
fi
dnl Our minimum supported glibc is 2.17, however support for thread_local
dnl did not arrive in glibc until 2.18.
if test "$use_thread_local" = "yes" || test "$use_thread_local" = "auto"; then
TEMP_LDFLAGS="$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 $host in
*mingw*)
dnl mingw32's implementation of thread_local has also been shown to behave
dnl erroneously under concurrent usage; see:
dnl https://gist.github.com/jamesob/fe9a872051a88b2025b1aa37bfa98605
AC_MSG_RESULT(no)
;;
*freebsd*)
dnl FreeBSD's implementation of thread_local is also buggy (per
dnl https://groups.google.com/d/msg/bsdmailinglist/22ncTZAbDp4/Dii_pII5AwAJ)
AC_MSG_RESULT(no)
;;
*)
AC_DEFINE(HAVE_THREAD_LOCAL,1,[Define if thread_local is supported.])
AC_MSG_RESULT(yes)
;;
esac
],
[
AC_MSG_RESULT(no)
]
)
LDFLAGS="$TEMP_LDFLAGS"
fi
dnl check for gmtime_r(), fallback to gmtime_s() if that is unavailable
dnl fail if neither are available.
AC_MSG_CHECKING(for gmtime_r)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <ctime>]],
[[ gmtime_r((const time_t *) nullptr, (struct tm *) nullptr); ]])],
[ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_GMTIME_R, 1, [Define this symbol if gmtime_r is available]) ],
[ AC_MSG_RESULT(no);
AC_MSG_CHECKING(for gmtime_s);
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <ctime>]],
[[ gmtime_s((struct tm *) nullptr, (const time_t *) nullptr); ]])],
[ AC_MSG_RESULT(yes)],
[ AC_MSG_RESULT(no); AC_MSG_ERROR(Both gmtime_r and gmtime_s are unavailable) ]
)
]
)
# Check for different ways of gathering OS randomness
AC_MSG_CHECKING([for Linux getrandom function])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/random.h>]],
[[ getrandom(nullptr, 32, 0); ]])],
[ AC_MSG_RESULT([yes]); AC_DEFINE([HAVE_GETRANDOM], [1], [Define this symbol if the Linux getrandom function call is available]) ],
[ AC_MSG_RESULT([no])]
)
AC_MSG_CHECKING([for getentropy via sys/random.h])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/random.h>]],
[[ getentropy(nullptr, 32) ]])],
[ AC_MSG_RESULT([yes]); AC_DEFINE([HAVE_GETENTROPY_RAND], [1], [Define this symbol if the BSD getentropy system call is available with sys/random.h]) ],
[ AC_MSG_RESULT([no])]
)
AC_MSG_CHECKING([for sysctl])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <sys/sysctl.h>]],
[[ #ifdef __linux__
#error "Don't use sysctl on Linux, it's deprecated even when it works"
#endif
sysctl(nullptr, 2, nullptr, nullptr, nullptr, 0); ]])],
[ AC_MSG_RESULT([yes]); AC_DEFINE([HAVE_SYSCTL], [1], [Define this symbol if the BSD sysctl() is available]) ],
[ AC_MSG_RESULT([no])]
)
AC_MSG_CHECKING([for sysctl KERN_ARND])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <sys/sysctl.h>]],
[[ #ifdef __linux__
#error "Don't use sysctl on Linux, it's deprecated even when it works"
#endif
static int name[2] = {CTL_KERN, KERN_ARND};
sysctl(name, 2, nullptr, nullptr, nullptr, 0); ]])],
[ AC_MSG_RESULT([yes]); AC_DEFINE([HAVE_SYSCTL_ARND], [1], [Define this symbol if the BSD sysctl(KERN_ARND) is available]) ],
[ AC_MSG_RESULT([no])]
)
# LevelDB platform checks
AC_MSG_CHECKING(for fdatasync)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <unistd.h>]],
[[ fdatasync(0); ]])],
[ AC_MSG_RESULT(yes); HAVE_FDATASYNC=1 ],
[ AC_MSG_RESULT(no); HAVE_FDATASYNC=0 ]
)
AC_MSG_CHECKING(for F_FULLFSYNC)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <fcntl.h>]],
[[ fcntl(0, F_FULLFSYNC, 0); ]])],
[ AC_MSG_RESULT(yes); HAVE_FULLFSYNC=1 ],
[ AC_MSG_RESULT(no); HAVE_FULLFSYNC=0 ]
)
AC_MSG_CHECKING(for O_CLOEXEC)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <fcntl.h>]],
[[ open("", O_CLOEXEC); ]])],
[ AC_MSG_RESULT(yes); HAVE_O_CLOEXEC=1 ],
[ AC_MSG_RESULT(no); HAVE_O_CLOEXEC=0 ]
)
# crc32c platform checks
AC_MSG_CHECKING(for __builtin_prefetch)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]], [[
char data = 0;
const char* address = &data;
__builtin_prefetch(address, 0, 0);
]])],
[ AC_MSG_RESULT(yes); HAVE_BUILTIN_PREFETCH=1 ],
[ AC_MSG_RESULT(no); HAVE_BUILTIN_PREFETCH=0 ]
)
AC_MSG_CHECKING(for _mm_prefetch)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <xmmintrin.h>]], [[
char data = 0;
const char* address = &data;
_mm_prefetch(address, _MM_HINT_NTA);
]])],
[ AC_MSG_RESULT(yes); HAVE_MM_PREFETCH=1 ],
[ AC_MSG_RESULT(no); HAVE_MM_PREFETCH=0 ]
)
AC_MSG_CHECKING(for strong getauxval support in the system headers)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[