configure.ac: add AM_PROG_CC_O

diff --git a/configure.ac b/configure.ac
index 83722403b371fcef90ec7f9e4b269b44ddcb54c1..1d0ab91ec228314f109379c5f4dc86fe352a4f3f 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -24,6 +24,7 @@ AC_CANONICAL_HOST
 
 dnl Check for programs
 AC_PROG_CC
+AM_PROG_CC_C_O dnl compiling with per-target flag 
 if test "$ac_cv_prog_cc" = "no" ; then
    AC_MSG_ERROR([*** No C compiler found !])
 fi