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# -*- shell-script -*-
#
# Copyright by the Board of Trustees of the University of Illinois.
# All rights reserved.
#
# This file is part of HDF5. The full HDF5 copyright notice, including
# terms governing use, modification, and redistribution, is contained in
# the files COPYING and Copyright.html. COPYING can be found at the root
# of the source code distribution tree; Copyright.html can be found at the
# root level of an installed copy of the electronic HDF5 document set and
# is linked from the top-level documents page. It can also be found at
# http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have
# access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu.
# 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.
#----------------------------------------------------------------------------
# Choosing a C Compiler
# ---------------------
#
# The user should be able to specify the compiler by setting the CC
# environment variable to the name of the compiler and any switches it
# requires for proper operation. If CC is unset then this script may
# set it. If CC is unset by time this script completes then configure
# will try `gcc' and `cc' in that order (perhaps some others too).
#
# Note: Code later in this file may depend on the value of $CC_BASENAME
# in order to distinguish between different compilers when
# deciding which compiler command-line switches to use. This
# variable is set based on the incoming value of $CC and is only
# used within this file.
if test "X-" = "X-$CC"; then
CC=cc
CC_BASENAME=cc
fi
# no need to use RANLIB
RANLIB=:
# C Compiler and Preprocessor Flags
# ---------------------------------
#
# Flags that end with `_CFLAGS' are always passed to the compiler.
# Flags that end with `_CPPFLAGS' are passed to the compiler when
# compiling but not when linking.
#
# DEBUG_CFLAGS Flags to pass to the compiler to create a
# DEBUG_CPPFLAGS library suitable for use with debugging
# tools. Usually this list will exclude
# optimization switches (like `-O') and include
# switches that turn on symbolic debugging
# support (like `-g').
#
# PROD_CFLAGS Flags to pass to the compiler to create a
# PROD_CPPFLAGS production version of the library. These
# usualy exclude symbolic debugging switches
# (like `-g') and include optimization switches
# (like `-O').
#
# PROFILE_CFLAGS Flags to pass to the compiler to create a
# PROFILE_CPPFLAGS library suitable for performance testing (like
# `-pg'). This may or may not include debugging
# or production flags.
#
# CFLAGS Flags can be added to this variable which
# might already be partially initialized. These
# flags will always be passed to the compiler
# and should include switches to turn on full
# warnings. HDF5 attempts to be ANSI and Posix
# compliant and employ good programming
# practices resulting in few if any
# warnings.
#
# Warning flags do not have to be added to CFLAGS
# variable if the compiler is the GNU gcc
# compiler or a descendent of gcc such as EGCS or PGCC.
#
# The CFLAGS should contains *something* or else
# configure will probably add `-g'. For most
# systems this isn't a problem but some systems
# will disable optimizations in favor of the
# `-g'.
#
#
# These flags should be set according to the compiler being used.
# There are two ways to check the compiler. You can try using `-v' or
# `--version' to see if the compiler will print a version string. You
# can use the value of $CC_BASENAME which is the base name of the
# first word in $CC (note that the value of CC may have changed
# above).
case $CC_BASENAME in
gcc)
CFLAGS="$CFLAGS -Wsign-compare" #Only works for some versions
DEBUG_CFLAGS="-g -fverbose-asm"
DEBUG_CPPFLAGS=
PROD_CFLAGS="-O3 -fomit-frame-pointer"
PROD_CPPFLAGS=
PROFILE_CFLAGS="-pg"
PROFILE_CPPFLAGS=
;;
cc)
CFLAGS="$CFLAGS"
DEBUG_CFLAGS="-g -h zero"
DEBUG_CPPFLAGS=
PROD_CFLAGS="-O2 -h scalar0"
PROD_CPPFLAGS=
PROFILE_CFLAGS="-pg"
PROFILE_CPPFLAGS=
;;
*)
CFLAGS="$CFLAGS -ansi"
DEBUG_CFLAGS="-g"
DEBUG_CPPFLAGS=
PROD_CFLAGS="-O"
PROD_CPPFLAGS=
PROFILE_CFLAGS="-pg"
PROFILE_CPPFLAGS=
;;
esac
# Overriding Configure Tests
# --------------------------
#
# 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=${ac_cv_c_bigendian='yes'}
# Set this to the width required by printf() to print type `long
# long'. For instance, if the format would be `%lld' then set it to
# `ll' or if the format would be `%qd' set it to `q'.
#hdf5_cv_printf_ll=${hdf5_cv_printf_ll='ll'}
# The default Fortran 90 compiler
if test "X-" = "X-$FC"; then
FC=f90
fi
if test "X-" = "X-$f9x_flags_set"; then
# -Wl passes flags to the linker and -M# will ignore warnings with
# number #. Warning 405 was stopping the executable from being built.
F9XSUFFIXFLAG=""
FSEARCH_DIRS=""
FCFLAGS="$FCFLAGS -dp -Wl-M405"
DEBUG_FCFLAGS=""
PROD_FCFLAGS=""
PROFILE_FCFLAGS=""
f9x_flags_set=yes
fi
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