--- a/configure.ac +++ b/configure.ac @@ -729,8 +729,11 @@ fi # libhs - enable_hyperscan="no" - + AC_ARG_ENABLE(hyperscan, + AS_HELP_STRING([--enable-hyperscan], [Enable high-performance regex matching with hyperscan]), + [enable_hyperscan=$enableval], + [enable_hyperscan=no]) + if test "x$enable_hyperscan" != "xno"; then # Try pkg-config first: PKG_CHECK_MODULES([libhs], libhs,, [with_pkgconfig_libhs=no]) if test "$with_pkgconfig_libhs" != "no"; then @@ -765,6 +768,7 @@ enable_hyperscan="no" fi fi + fi AS_IF([test "x$enable_hyperscan" = "xyes"], [AC_DEFINE([BUILD_HYPERSCAN], [1], [Intel Hyperscan support enabled])]) # libyaml