Index: gdb-6.3/gdb/gstack.sh
===================================================================
--- gdb-6.3.orig/gdb/gstack.sh	2006-02-14 17:21:05.000000000 -0200
+++ gdb-6.3/gdb/gstack.sh	2006-04-14 03:17:12.000000000 -0300
@@ -17,17 +17,17 @@ fi
 backtrace="bt"
 if test -d /proc/$1/task ; then
     # Newer kernel; has a task/ directory.
-    if test `ls /proc/$1/task | wc -l` -gt 1 2>/dev/null ; then
+    if test `/bin/ls /proc/$1/task | /usr/bin/wc -l` -gt 1 2>/dev/null ; then
 	backtrace="thread apply all bt"
     fi
 elif test -f /proc/$1/maps ; then
     # Older kernel; go by it loading libpthread.
-    if grep -e libpthread /proc/$1/maps > /dev/null 2>&1 ; then
+    if /bin/grep -e libpthread /proc/$1/maps > /dev/null 2>&1 ; then
 	backtrace="thread apply all bt"
     fi
 fi
 
-GDB=${GDB:-gdb}
+GDB=${GDB:-/usr/bin/gdb}
 
 if $GDB -nx --quiet --batch --readnever > /dev/null 2>&1; then
     readnever=--readnever
@@ -39,7 +39,7 @@ fi
 set pagination no
 $backtrace
 EOF
-sed -n \
+/bin/sed -n \
     -e 's/^(gdb) //' \
     -e '/^#/p' \
     -e '/^Thread/p'