[ssl=check])
if test "$ssl" != false; then
- m4_ifndef([PKG_CHECK_MODULES], [m4_fatal([Please install pkg-config.])])
- PKG_CHECK_MODULES([SSL], [openssl],
+ AX_CHECK_OPENSSL(
[HAVE_OPENSSL=yes],
[HAVE_OPENSSL=no
if test "$ssl" = check; then
[DBDIR='${sysconfdir}/${PACKAGE}'])
AC_SUBST([DBDIR])])
-dnl Defines HAVE_BACKTRACE if backtrace() is declared in <execinfo.h>
-dnl and exists in libc.
+dnl Defines HAVE_BACKTRACE if backtrace() is found.
AC_DEFUN([OVS_CHECK_BACKTRACE],
- [AC_CHECK_HEADER([execinfo.h], [AC_CHECK_FUNCS([backtrace])])])
+ [AC_SEARCH_LIBS([backtrace], [execinfo ubacktrace])])
dnl Checks for __malloc_hook, etc., supported by glibc.
AC_DEFUN([OVS_CHECK_MALLOC_HOOKS],