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AC_DEFUN([PDNS_WITH_RE2], [
HAVE_RE2=0
AC_MSG_CHECKING([if we should compile in libre2 for dnsdist])
AC_ARG_WITH([re2], [AS_HELP_STRING([--with-re2],[with libre2 @<:@default=no@:>@])],
[with_re2=$withval],
[with_re2=no]
)
AC_MSG_RESULT([$with_re2])
AS_IF([test "x$with_re2" = "xyes"], [
PKG_CHECK_MODULES([RE2], [re2], [
HAVE_RE2=1 ], [
AC_CHECK_HEADER([re2/re2.h], [
AC_CHECK_LIB([re2], [main], [
HAVE_RE2=1
RE2_LIBS="-lre2" ], [ : ])
])
])
AS_IF([test "$HAVE_RE2" -ne 1], [AC_MSG_ERROR([Could not find libre2])])
])
AM_CONDITIONAL([HAVE_RE2], [test "$HAVE_RE2" -eq 1])
AS_IF([test "$HAVE_RE2" -eq 1], [AC_DEFINE([HAVE_RE2], [1], [Define if using RE2.])])
])
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