| dnl Check a program for version sanity. The test runs a program, passes it an |
| dnl argument to make it print out some identification string, and filters that |
| dnl output with a regular expression. If the output is non-empty, the program |
| dnl passes the sanity check. |
| dnl $1 - Name or full path of the program to run |
| dnl $2 - Argument to pass to print out identification string |
| dnl $3 - grep RE to match identification string |
| dnl $4 - set to 1 to make errors only a warning |
| AC_DEFUN([CHECK_PROGRAM_SANITY], |
| [ |
| AC_MSG_CHECKING([sanity for program ]$1) |
| sanity="0" |
| sanity_path=`which $1 2>/dev/null` |
| if test "$?" -eq 0 -a -x "$sanity_path" ; then |
| sanity=`$1 $2 2>&1 | grep "$3"` |
| if test -z "$sanity" ; then |
| AC_MSG_RESULT([no]) |
| sanity="0" |
| if test "$4" -eq 1 ; then |
| AC_MSG_WARN([Program ]$1[ failed to pass sanity check.]) |
| else |
| AC_MSG_ERROR([Program ]$1[ failed to pass sanity check.]) |
| fi |
| else |
| AC_MSG_RESULT([yes]) |
| sanity="1" |
| fi |
| else |
| AC_MSG_RESULT([not found]) |
| fi |
| ]) |
