* configure.ac: Use -ggdb3 for gcc, except for gcc-2.96.

Rev: configure.ac:1.13

configure.ac

@@ -787,6 +787,12 @@ AC_CONFIG_SUBDIRS(src/sftp)
 
 # Set these flags *last*, or else the test programs won't compile
 if test x$GCC = xyes ; then
+  # Using -ggdb3 makes (some versions of) Redhat's gcc-2.96 dump core
+  if "$CC" --version | grep '^2\.96$' 1>/dev/null 2>&1; then
+    true
+  else
+    CFLAGS="$CFLAGS -ggdb3"
+  fi
   CFLAGS="$CFLAGS -Wall -W \
   -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes \
   -Wpointer-arith -Wbad-function-cast -Wnested-externs"