commit 0ac4b0f99d12a76f07f24d747a77f2bc07e481e3 Author: Nick Mathewson <nickm@torproject.org> Date: Tue Aug 30 22:22:15 2011 -0400 Check for lround with autoconf; fall back to rint. --- configure.in | 2 +- src/common/util.c | 8 +++++--- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/configure.in b/configure.in index 4e84298..df1b709 100644 --- a/configure.in +++ b/configure.in @@ -223,7 +223,7 @@ dnl ------------------------------------------------------------------- dnl Check for functions before libevent, since libevent-1.2 apparently dnl exports strlcpy without defining it in a header. -AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull getaddrinfo localtime_r gmtime_r memmem strtok_r writev readv flock prctl vasprintf) +AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull getaddrinfo localtime_r gmtime_r memmem strtok_r writev readv flock prctl vasprintf lround rint) using_custom_malloc=no if test x$enable_openbsd_malloc = xyes ; then diff --git a/src/common/util.c b/src/common/util.c index ee0acbb..de1ca36 100644 --- a/src/common/util.c +++ b/src/common/util.c @@ -334,10 +334,12 @@ tor_mathlog(double d) long tor_lround(double d) { -#ifdef _MSC_VER - return (long)(d > 0 ? d + 0.5 : ceil(d - 0.5)); -#else +#if defined(HAVE_LROUND) return lround(d); +#elif defined(HAVE_RINT) + return (long)rint(d); +#else + return (long)(d > 0 ? d + 0.5 : ceil(d - 0.5)); #endif }