diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index c50f07a47..fa3e6c831 100644 --- a/configure.ac +++ b/configure.ac @@ -432,6 +432,13 @@ AC_CHECK_FUNCS([updwtmpx updwtmpx], [have_gnu_utmpx=yes], [have_gnu_utmpx=no]) AM_CONDITIONAL([HAVE_OPENAT], [test "x$have_openat" = xyes]) + +AC_CHECK_FUNCS([isnan], [], + [AC_CHECK_LIB([m], [isnan], [MATH_LIBS="-lm"])] +) +AC_SUBST([MATH_LIBS]) + + dnl lib/mononotic.c may require -lrt AC_CHECK_FUNCS([clock_gettime], [], [AC_CHECK_LIB([rt], [clock_gettime], [REALTIME_LIBS="-lrt"])] |