~drizzle-trunk/drizzle/development

dnl  Copyright (C) 2009 Sun Microsystems

dnl This file is free software; Sun Microsystems

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}"

        AM_CXXFLAGS="-mno-fused-madd ${AM_CXXFLAGS}"

      ;;

    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"

    DEBUG_CXXFLAGS="-O0"

    OPTIMIZE_CFLAGS="-O3"

    OPTIMIZE_CXXFLAGS="-O3"

  ])

  AS_IF([test "$INTELCC" = "yes"],[

    AM_CPPFLAGS="-g ${AM_CPPFLAGS}"

    DEBUG_CFLAGS="-O0"

    DEBUG_CXXFLAGS="-O0"

    OPTIMIZE_CFLAGS="-xHOST -O3 -no-prec-div -static"

    OPTIMIZE_CXXFLAGS="${OPTIMIZE_CFLAGS}"

  ])

  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"

    CXX="${CXX} -xlang=c99"

    AM_CFLAGS="-g -mt -xstrconst -Xa ${AM_CFLAGS}"

    AM_CXXFLAGS="-mt -compat=5 -library=stlport4 -library=Crun -template=no%extdef ${AM_CXXFLAGS}"

    DEBUG_CXXFLAGS="-g"

    dnl TODO: Make a test for -xO4 usability here

    OPTIMIZE_FLAGS="-xO3 -xlibmil -xdepend -xbuiltin"

    OPTIMIZE_CFLAGS="${OPTIMIZE_FLAGS}"

    OPTIMIZE_CXXFLAGS="-g0 ${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"

    AM_CXXFLAGS="${AM_CXXFLAGS} ${DEBUG_CXXFLAGS} -DDEBUG"

  ],[

    # Optimized version. No debug

    AM_CFLAGS="${AM_CFLAGS} ${OPTIMIZE_CFLAGS}"

    AM_CXXFLAGS="${AM_CXXFLAGS} ${OPTIMIZE_CXXFLAGS}"

  ])

])