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| author | Cory Fields <cory-nospam-@coryfields.com> | 2017-04-13 13:09:19 -0400 |
|---|---|---|
| committer | Pieter Wuille <pieter.wuille@gmail.com> | 2017-06-09 19:25:36 -0700 |
| commit | 2424989e4f681a71273c0cc729e38eef30452456 (patch) | |
| tree | 91610ae6228b9b0f57f1db5a354328d77d29754a /configure.ac | |
| parent | e4030ab4f47065c362901109c74ca8e791c2de0a (diff) | |
| download | bitcoin-2424989e4f681a71273c0cc729e38eef30452456.tar.xz | |
leveldb: enable runtime-detected crc32 instructions
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index ca66216554..31074d7720 100644 --- a/configure.ac +++ b/configure.ac @@ -236,6 +236,12 @@ 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"],,[[$CXXFLAG_WERROR]]) + + # Check for optional instruction set support. Enabling these does _not_ imply that all code will + # be compiled with them, rather that specific objects/libs may use them after checking for runtime + # compatibility. + AX_CHECK_COMPILE_FLAG([-msse4.2],[[enable_sse42=yes; SSE42_CXXFLAGS="-msse4.2"]],,[[$CXXFLAG_WERROR]]) + fi CPPFLAGS="$CPPFLAGS -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS" @@ -1114,6 +1120,7 @@ AM_CONDITIONAL([USE_QRCODE], [test x$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]) AC_DEFINE(CLIENT_VERSION_MAJOR, _CLIENT_VERSION_MAJOR, [Major version]) AC_DEFINE(CLIENT_VERSION_MINOR, _CLIENT_VERSION_MINOR, [Minor version]) @@ -1146,6 +1153,7 @@ AC_SUBST(HARDENED_CPPFLAGS) AC_SUBST(HARDENED_LDFLAGS) AC_SUBST(PIC_FLAGS) AC_SUBST(PIE_FLAGS) +AC_SUBST(SSE42_CXXFLAGS) AC_SUBST(LIBTOOL_APP_LDFLAGS) AC_SUBST(USE_UPNP) AC_SUBST(USE_QRCODE) |