FS-234: add missing AM_PROG_CC_C_O to sofia configure

ad0298f7 · Michael Jerris · c569fb0f · ad0298f7
--- a/libs/sofia-sip/configure.ac
+++ b/libs/sofia-sip/configure.ac
@@ -53,6 +53,7 @@ AC_CHECK_PROG(ETAGS, etags, etags, echo)
 AC_CHECK_TOOL(AR, ar, ar)
 AC_CHECK_TOOL(LD, ld, ld)
 AC_PROG_LIBTOOL
+AM_PROG_CC_C_O

 SAC_ENABLE_NDEBUG
 SAC_ENABLE_EXPENSIVE_CHECKS