# else: If the template file set something, that is used.

# else: If coverage was enabled, don't set anything.

# else: If the compiler is GCC, then we use -O2.

# else: If the compiler is something else, then we use -O.

# else: If the compiler is something else, then we use -O, unless debugging.

if test "$ac_env_CFLAGS_set" = set; then

CFLAGS=$ac_env_CFLAGS_value

# Some versions of GCC support some additional useful warning flags.

# Check whether they are supported, and add them to CFLAGS if so.

# ICC pretends to be GCC but it's lying; it doesn't support these options.

# ICC pretends to be GCC but it's lying; it doesn't support these flags,

# but has its own. Also check other compiler-specific flags here.

if test "$GCC" = yes -a "$ICC" = no; then

CFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wpointer-arith"

rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

elif testx"${CC}" =x"xlc"; then

# AIX xlc has to have strict aliasing turned off too

elif test"$PORTNAME" ="aix"; then

# AIX's xlc has to have strict aliasing turned off too

{ echo "$as_me:$LINENO: checking if $CC supports -qnoansialias" >&5

echo $ECHO_N "checking if $CC supports -qnoansialias... $ECHO_C" >&6; }

pgac_save_CFLAGS=$CFLAGS

dnl Process this file with autoconf to produce a configure script.

dnl $PostgreSQL: pgsql/configure.in,v 1.589 2009/01/22 22:27:12 petere Exp $

dnl $PostgreSQL: pgsql/configure.in,v 1.590 2009/02/11 20:02:39 tgl Exp $

dnl

dnl Developers, please strive to achieve this order:

dnl

# else: If the template file set something, that is used.

# else: If coverage was enabled, don't set anything.

# else: If the compiler is GCC, then we use -O2.

# else: If the compiler is something else, then we use -O.

# else: If the compiler is something else, then we use -O, unless debugging.

if test "$ac_env_CFLAGS_set" = set; then

CFLAGS=$ac_env_CFLAGS_value

# Some versions of GCC support some additional useful warning flags.

# Check whether they are supported, and add them to CFLAGS if so.

# ICC pretends to be GCC but it's lying; it doesn't support these options.

# ICC pretends to be GCC but it's lying; it doesn't support these flags,

# but has its own. Also check other compiler-specific flags here.

if test "$GCC" = yes -a "$ICC" = no; then

CFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wpointer-arith"

PGAC_PROG_CC_CFLAGS_OPT([-mp1])

# Make sure strict aliasing is off (though this is said to be the default)

PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing])

elif testx"${CC}" =x"xlc"; then

# AIX xlc has to have strict aliasing turned off too

elif test"$PORTNAME" ="aix"; then

# AIX's xlc has to have strict aliasing turned off too

PGAC_PROG_CC_CFLAGS_OPT([-qnoansialias])

fi

# Set appropriate default compiler options if using xlc

# Note: configure will add -qnoansialias if the compiler accepts it,

# even if user specifies a non-default CFLAGS setting.

if test "$GCC" != yes ; then

case $host_os in

aix3.2.5 | aix4.1*)