hdf5/config/linux

#							-*- shell-script -*-
#
# This file is part of the HDF5 build script.  It is processed shortly
# after configure starts and defines, among other things, flags for
# the various compile modes.


#----------------------------------------------------------------------------
# Compiler flags. The CPPFLAGS values should not include package debug
# flags like `-DH5G_DEBUG' since these are added with the
# `--enable-debug' switch of configure.
CC=${CC:-gcc}
case `$CC -v 2>&1 |tail -1 |sed 's/gcc version //'` in
   2.7.*)
       echo "  +------------------------------------------------+"
       echo "  | You have an old version of gcc. Please upgrade |"
       echo "  | to 2.8.1 or better.  Continuing anyway, but    |"
       echo "  | code generation may be wrong on some platforms.|"
       echo "  +------------------------------------------------+"
       sleep 5
       CCVENDOR=gcc
       ;;
   2.8.*)
       CFLAGS="$CFLAGS -Wsign-compare"
       CCVENDOR=gcc
       ;;
   egcs-*)
       CFLAGS="$CFLAGS -Wsign-compare"
       CCVENDOR=egcs
       ;;
   pgcc-*)
       CFLAGS="$CFLAGS -Wsign-compare"
       CCVENDOR=pgcc
       ;;
esac

# What must *always* be present for things to compile correctly?
CFLAGS="$CFLAGS -ansi"

# What compiler flags should be used for code development?
DEBUG_CFLAGS="-g -fverbose-asm"
DEBUG_CPPFLAGS="-DH5F_OPT_SEEK=0 -DH5F_LOW_DFLT=H5F_LOW_SEC2"

# What compiler flags should be used for building a production
# library?
if [ "gcc" = "$CCVENDOR" ]; then
    PROD_CFLAGS="-mcpu=pentiumpro -march=pentiumpro -O3 -finline-functions -malign-double -fomit-frame-pointer -fschedule-insns2"
    PROD_CPPFLAGS=
elif [ "egcs" = "$CCVENDOR" ]; then
    PROD_CFLAGS="-mcpu=pentiumpro -march=pentiumpro -O6 -malign-double"
    PROD_CPPFLAGS=
elif [ "pgcc" = "$CCVENDOR" ]; then
    PROD_CFLAGS="-mcpu=pentiumpro -march=pentiumpro -O6 -malign-double"
    PROD_CPPFLAGS=
else
    PROD_CFLAGS=
    PROD_CPPFLAGS=
fi

# What compiler flags enable code profiling?
PROFILE_CFLAGS=-pg
PROFILE_CPPFLAGS=

#----------------------------------------------------------------------------
# Values for overriding configuration tests when cross compiling.
# This includes compiling on some machines where the serial front end
# compiles for a parallel back end.

# Set this to `yes' or `no' depending on whether the target is big
# endian or little endian.
#ac_cv_c_bigendian=${ac_cv_c_bigendian='yes'}