Make sure $GDB contains a real program.

diff --git a/gdb/testsuite/config/unix-gdb.exp b/gdb/testsuite/config/unix-gdb.exp
index 64283d30c26e0b8e0ff45cf2c029d0275d49c104..6282f4c1348e8fde5dc42d28dc2f7201e527255a 100644 (file)
--- a/gdb/testsuite/config/unix-gdb.exp
+++ b/gdb/testsuite/config/unix-gdb.exp
@@ -39,10 +39,14 @@ if ![info exists decimal] then {
 proc gdb_version {} {
     global GDB
     global GDBFLAGS
+    if {[which $GDB] != 0} then {
     set tmp [exec echo "q" | $GDB]
     set version [lindex $tmp [lsearch $tmp "\[0-9\]*"]]
     set version [string range $version 0 [expr [string length $version]-2]]
     clone_output "[which $GDB] version $version $GDBFLAGS\n"
+    } else {
+       warning "$GDB does not exist"
+}
 }
 
 #
@@ -95,7 +99,6 @@ proc gdb_load { arg } {
            if $verbose>1 then {
                send_user "\t\tLoaded $arg into the $GDB\n"
            }
-           return 0
            }
        -re "has no symbol-table.*$prompt $" {
            error "$arg wasn't compiled with \"-g\""
@@ -202,12 +205,18 @@ proc gdb_start {} {
     set oldtimeout $timeout
     set timeout [expr "$timeout + 60"]
     if [ llength $GDBFLAGS ] then {
+       if {[which $GDB] != 0} then {
        spawn $GDB $GDBFLAGS
     } else {
-       if {[which $GDB] != 0} then {
+           error "$GDB does not exist."
+           exit 1
+       }
+    } else {
+       IF {[WHICH $GDB] != 0} then {
        spawn $GDB
        } else {
-           error "Can't find $GDB"
+           error "$GDB does not exist."
+           exit 1
        }
     }
     expect {