| 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 | |
| ]) |