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dnl Copyright (C) 2009 Sun Microsystems, Inc.
dnl This file is free software; Sun Microsystems, Inc.
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([PANDORA_OPTIMIZE],[
dnl Build optimized or debug version ?
dnl First check for gcc and g++
AS_IF([test "$GCC" = "yes" -a "$INTELCC" = "no"],[
dnl The following is required for portable results of floating point
dnl calculations on PowerPC. The same must also be done for IA-64, but
dnl this options is missing in the IA-64 gcc backend.
case "$target_cpu" in
*ppc* | *powerpc*)
AM_CFLAGS="-mno-fused-madd ${AM_CFLAGS}"
;;
esac
dnl Once we can use a modern autoconf, we can replace the std=gnu99 here
dnl with using AC_CC_STD_C99 above
CC="${CC} -std=gnu99"
AM_CPPFLAGS="-g ${AM_CPPFLAGS}"
DEBUG_CFLAGS="-O0"
OPTIMIZE_CFLAGS="-O2"
])
AS_IF([test "$INTELCC" = "yes"],[
AM_CPPFLAGS="-g ${AM_CPPFLAGS}"
DEBUG_CFLAGS="-O0"
OPTIMIZE_CFLAGS="-xHOST -O2 -no-prec-div -static"
])
AS_IF([test "$SUNCC" = "yes"],[
dnl Once we can use a modern autoconf, we can replace the -xc99=all here
dnl with using AC_CC_STD_C99 above
CC="${CC} -xc99=all"
AM_CFLAGS="-g -mt -xstrconst -Xa ${AM_CFLAGS}"
dnl TODO: Make a test for -xO4 usability here
OPTIMIZE_FLAGS="-xO3 -xlibmil -xdepend -xbuiltin"
OPTIMIZE_CFLAGS="${OPTIMIZE_FLAGS}"
])
AC_ARG_WITH([debug],
[AS_HELP_STRING([--with-debug],
[Add debug code/turns off optimizations (yes|no) @<:@default=no@:>@])],
[with_debug=$withval],
[with_debug=no])
AS_IF([test "$with_debug" = "yes"],[
# Debugging. No optimization.
AM_CFLAGS="${AM_CFLAGS} ${DEBUG_CFLAGS} -DDEBUG"
],[
# Optimized version. No debug
AM_CFLAGS="${AM_CFLAGS} ${OPTIMIZE_CFLAGS}"
])
])
|
