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-rw-r--r--configure.ac60
1 files changed, 54 insertions, 6 deletions
diff --git a/configure.ac b/configure.ac
index a90063d9de..fd1396fc9e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,6 +19,12 @@ BITCOIN_GUI_NAME=bitcoin-qt
BITCOIN_CLI_NAME=bitcoin-cli
BITCOIN_TX_NAME=bitcoin-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${ARFLAGS+set}" != "xset"; then
+ ARFLAGS="cr"
+fi
+
AC_CANONICAL_HOST
AH_TOP([#ifndef BITCOIN_CONFIG_H])
@@ -171,6 +177,16 @@ AC_ARG_ENABLE([glibc-back-compat],
[use_glibc_compat=$enableval],
[use_glibc_compat=no])
+AC_ARG_ENABLE([experimental-asm],
+ [AS_HELP_STRING([--enable-experimental-asm],
+ [Enable experimental assembly routines (default is no)])],
+ [experimental_asm=$enableval],
+ [experimental_asm=no])
+
+if test "x$experimental_asm" = xyes; then
+ AC_DEFINE(EXPERIMENTAL_ASM, 1, [Define this symbol to build in experimental assembly routines])
+fi
+
AC_ARG_WITH([system-univalue],
[AS_HELP_STRING([--with-system-univalue],
[Build with system UniValue (default is no)])],
@@ -242,13 +258,35 @@ if test "x$CXXFLAGS_overridden" = "xno"; then
AX_CHECK_COMPILE_FLAG([-Wunused-local-typedef],[CXXFLAGS="$CXXFLAGS -Wno-unused-local-typedef"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wdeprecated-register],[CXXFLAGS="$CXXFLAGS -Wno-deprecated-register"],,[[$CXXFLAG_WERROR]])
AX_CHECK_COMPILE_FLAG([-Wimplicit-fallthrough],[CXXFLAGS="$CXXFLAGS -Wno-implicit-fallthrough"],,[[$CXXFLAG_WERROR]])
+fi
- # Check for optional instruction set support. Enabling these does _not_ imply that all code will
- # be compiled with them, rather that specific objects/libs may use them after checking for runtime
- # compatibility.
- AX_CHECK_COMPILE_FLAG([-msse4.2],[[enable_sse42=yes; SSE42_CXXFLAGS="-msse4.2"]],,[[$CXXFLAG_WERROR]])
+# Check for optional instruction set support. Enabling these does _not_ imply that all code will
+# be compiled with them, rather that specific objects/libs may use them after checking for runtime
+# compatibility.
+AX_CHECK_COMPILE_FLAG([-msse4.2],[[SSE42_CXXFLAGS="-msse4.2"]],,[[$CXXFLAG_WERROR]])
+
+TEMP_CXXFLAGS="$CXXFLAGS"
+CXXFLAGS="$CXXFLAGS $SSE42_CXXFLAGS"
+AC_MSG_CHECKING(for assembler crc32 support)
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+ #include <stdint.h>
+ #if defined(_MSC_VER)
+ #include <intrin.h>
+ #elif defined(__GNUC__) && defined(__SSE4_2__)
+ #include <nmmintrin.h>
+ #endif
+ ]],[[
+ uint64_t l = 0;
+ l = _mm_crc32_u8(l, 0);
+ l = _mm_crc32_u32(l, 0);
+ l = _mm_crc32_u64(l, 0);
+ return l;
+ ]])],
+ [ AC_MSG_RESULT(yes); enable_hwcrc32=yes],
+ [ AC_MSG_RESULT(no)]
+)
+CXXFLAGS="$TEMP_CXXFLAGS"
-fi
CPPFLAGS="$CPPFLAGS -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS"
AC_ARG_WITH([utils],
@@ -636,6 +674,14 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <unistd.h>]],
[ AC_MSG_RESULT(no)]
)
+AC_MSG_CHECKING(for getentropy via random.h)
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <unistd.h>
+ #include <sys/random.h>]],
+ [[ getentropy(nullptr, 32) ]])],
+ [ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_GETENTROPY_RAND, 1,[Define this symbol if the BSD getentropy system call is available with sys/random.h]) ],
+ [ AC_MSG_RESULT(no)]
+)
+
AC_MSG_CHECKING(for sysctl KERN_ARND)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <sys/sysctl.h>]],
@@ -1132,7 +1178,8 @@ AM_CONDITIONAL([USE_QRCODE], [test x$use_qr = xyes])
AM_CONDITIONAL([USE_LCOV],[test x$use_lcov = xyes])
AM_CONDITIONAL([GLIBC_BACK_COMPAT],[test x$use_glibc_compat = xyes])
AM_CONDITIONAL([HARDEN],[test x$use_hardening = xyes])
-AM_CONDITIONAL([ENABLE_SSE42],[test x$enable_sse42 = xyes])
+AM_CONDITIONAL([ENABLE_HWCRC32],[test x$enable_hwcrc32 = xyes])
+AM_CONDITIONAL([EXPERIMENTAL_ASM],[test x$experimental_asm = xyes])
AC_DEFINE(CLIENT_VERSION_MAJOR, _CLIENT_VERSION_MAJOR, [Major version])
AC_DEFINE(CLIENT_VERSION_MINOR, _CLIENT_VERSION_MINOR, [Minor version])
@@ -1262,4 +1309,5 @@ echo " CPPFLAGS = $CPPFLAGS"
echo " CXX = $CXX"
echo " CXXFLAGS = $CXXFLAGS"
echo " LDFLAGS = $LDFLAGS"
+echo " ARFLAGS = $ARFLAGS"
echo