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authorWladimir J. van der Laan <laanwj@gmail.com>2017-06-13 19:38:37 +0200
committerWladimir J. van der Laan <laanwj@gmail.com>2017-06-13 19:48:13 +0200
commita4fe07714da104205a1376343d67b7f576f08d26 (patch)
treee0dfa9a78fb5cb1956d7ef9d48c26f1449990669 /configure.ac
parent22ec7688388694289cf5ffdc39c69ee3b12c8a23 (diff)
parent3ee3d04374894ad56ac00b654aef70d70fe6466e (diff)
Merge #10544: Update to LevelDB 1.20
3ee3d04 Add extra LevelDB source to Makefile (MarcoFalke) 2424989 leveldb: enable runtime-detected crc32 instructions (Cory Fields) cf44e4c Squashed 'src/leveldb/' changes from a31c8aa40..196962ff0 (Pieter Wuille) Tree-SHA512: 19ade77e3f6265507b3ab7b9aa5150d378aa0751e24ac7a61567b0f720a566cedc6c3d3336da17a3bd2b5d068ee86600d96a15228f78bd20ccf98c8fc9041a91
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac8
1 files changed, 8 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 160be397ba..5ad01d44e8 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)