+echo "$as_me:$LINENO: checking for a known getopt prototype in unistd.h" >&5
+echo $ECHO_N "checking for a known getopt prototype in unistd.h... $ECHO_C" >&6
+if test "${gprof_cv_decl_getopt_unistd_h+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <unistd.h>
+int
+main ()
+{
+extern int getopt (int, char *const*, const char *);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag"
+ || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ gprof_cv_decl_getopt_unistd_h=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+gprof_cv_decl_getopt_unistd_h=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+echo "$as_me:$LINENO: result: $gprof_cv_decl_getopt_unistd_h" >&5
+echo "${ECHO_T}$gprof_cv_decl_getopt_unistd_h" >&6
+if test $gprof_cv_decl_getopt_unistd_h = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_DECL_GETOPT 1
+_ACEOF
+
+fi
+
+
+GCC_WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
+
+# Check whether --enable-werror or --disable-werror was given.
+if test "${enable_werror+set}" = set; then
+ enableval="$enable_werror"
+ case "${enableval}" in
+ yes | y) ERROR_ON_WARNING="yes" ;;
+ no | n) ERROR_ON_WARNING="no" ;;
+ *) { { echo "$as_me:$LINENO: error: bad value ${enableval} for --enable-werror" >&5
+echo "$as_me: error: bad value ${enableval} for --enable-werror" >&2;}
+ { (exit 1); exit 1; }; } ;;
+ esac
+fi;
+
+# Enable -Werror by default when using gcc
+if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
+ ERROR_ON_WARNING=yes
+fi
+
+NO_WERROR=
+if test "${ERROR_ON_WARNING}" = yes ; then
+ GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
+ NO_WERROR="-Wno-error"
+fi
+
+if test "${GCC}" = yes ; then
+ WARN_CFLAGS="${GCC_WARN_CFLAGS}"
+fi
+