mirror of
https://github.com/HDFGroup/hdf5.git
synced 2024-11-27 02:10:55 +08:00
b43ff847ee
Code cleanup
Description:
Remove special optimization and debugging flags for obsolete versions of
gcc.
Platforms tested:
FreeBSD 4.8 (sleipnir)
h5committest not needed.
220 lines
7.0 KiB
Bash
220 lines
7.0 KiB
Bash
# -*- shell-script -*-
|
|
#
|
|
# This file should be sourced into configure if the compiler is the
|
|
# GNU gcc compiler or a derivative. It is careful not to do anything
|
|
# if the compiler is not GNU; otherwise `cc_flags_set' is set to `yes'
|
|
#
|
|
|
|
# Get the compiler version in a way that works for gcc, egcs, and
|
|
# pgcc unless a compiler version is already known
|
|
#
|
|
# cc_vendor: The compiler name: gcc, egcs, or pgcc
|
|
# cc_version: Version number: 2.91.60, 2.7.2.1
|
|
#
|
|
if test X = "X$cc_flags_set"; then
|
|
cc_version="`$CC $CFLAGS -v 2>&1 |grep 'gcc version' |\
|
|
sed 's/.*gcc version \([-a-z0-9\.]*\).*/\1/'`"
|
|
cc_vendor=`echo $cc_version |sed 's/\([a-z]*\).*/\1/'`
|
|
cc_version=`echo $cc_version |sed 's/[-a-z]//g'`
|
|
if test X = "X$cc_vendor" -a X != "X$cc_version"; then
|
|
cc_vendor=gcc
|
|
fi
|
|
if test "-" != "$cc_vendor-$cc_version"; then
|
|
echo "compiler '$CC' is GNU $cc_vendor-$cc_version"
|
|
fi
|
|
|
|
# Some version numbers
|
|
cc_vers_major=`echo $cc_version | cut -f1 -d.`
|
|
cc_vers_minor=`echo $cc_version | cut -f2 -d.`
|
|
cc_vers_patch=`echo $cc_version | cut -f3 -d.`
|
|
test -n "$cc_vers_major" || cc_vers_major=0
|
|
test -n "$cc_vers_minor" || cc_vers_minor=0
|
|
test -n "$cc_vers_patch" || cc_vers_patch=0
|
|
cc_vers_all=`expr $cc_vers_major '*' 1000000 + $cc_vers_minor '*' 1000 + $cc_vers_patch`
|
|
fi
|
|
|
|
# GCC compilers before gcc-2.8.1 have problems with `long long'.
|
|
if test gcc = "$cc_vendor" -a "$cc_vers_all" -lt 2008001; then
|
|
cat <<EOF
|
|
**
|
|
** This compiler may be unable to properly compile the long long
|
|
** data type used extensively by hdf5, although specifying
|
|
** --disable-hsizet for configure may work around those bugs.
|
|
** There may be other code generation problems also, especially
|
|
** when optimizations are enabled. Please upgrade to at least GNU
|
|
** gcc version 2.8.1 before reporting bugs to the HDF5 team.
|
|
**
|
|
EOF
|
|
sleep 5
|
|
|
|
# Current EGCS compilers have problems with `long long' and register
|
|
# allocation when optimizations are turned on for x86 systems.
|
|
elif test egcs = "$cc_vendor" -a "$cc_vers_all" -le 2091066; then
|
|
if test "$HSIZET" != "large"; then
|
|
cat <<EOF
|
|
**
|
|
** This compiler may have problems allocating registers when
|
|
** optimizations are enabled on some platforms. Specifying
|
|
** --disable-hsizet usually avoids the bug.
|
|
**
|
|
EOF
|
|
sleep 5
|
|
fi
|
|
|
|
# All current versions of PGCC have problems also.
|
|
elif test pgcc = "$cc_vendor" -a "$cc_vers_all" -le 2091066; then
|
|
cat <<EOF
|
|
**
|
|
** This compiler may have problems allocating registers for long
|
|
** long data types when optimizations are enabled. There may be
|
|
** other code generation problems as well. We know of no version
|
|
** of pgcc which is capable of compiling HDF5 in production mode.
|
|
** Please use gcc-2.8 or egcs-1.1.1 before reporting bugs.
|
|
**
|
|
EOF
|
|
sleep 5
|
|
|
|
fi
|
|
|
|
# Architecture-specific flags
|
|
case "$host_os-$host_cpu" in
|
|
# FreeBSD sets the information from "hostname -m" to the general machine
|
|
# architecture, not the specific CPU for the machine, so even our
|
|
# Pentium II Xeon server is set to "i386". Once we know we are on a FreeBSD
|
|
# machine, use the "sysctl" command to get the CPU hardware model.
|
|
freebsd*)
|
|
host_cpu_model=`sysctl -n hw.model`
|
|
case "$host_cpu_model" in
|
|
# Hmm.. this might not catch Celerons, but it won't hurt them either...
|
|
*Pro*|*II*|*III*|*IV*|*Athlon*)
|
|
ARCH=${ARCH:="-march=i686"}
|
|
;;
|
|
esac
|
|
;;
|
|
|
|
*-i686)
|
|
ARCH=${ARCH:="-march=i686"}
|
|
;;
|
|
esac
|
|
|
|
# Host-specific flags
|
|
case "`hostname`" in
|
|
sleipnir.ncsa.uiuc.edu)
|
|
# case "$cc_vendor-$cc_version" in
|
|
# gcc-3*)
|
|
# ARCH="`echo $ARCH | sed -e 's/i686/athlon-mp/g'`"
|
|
# ;;
|
|
# esac
|
|
ARCH="$ARCH -pipe"
|
|
;;
|
|
esac
|
|
|
|
# Common GCC flags for various situations
|
|
case "$cc_vendor-$cc_version" in
|
|
gcc*|egcs*|pgcc*)
|
|
# General
|
|
CFLAGS="$CFLAGS $ARCH -ansi -pedantic -Wall -W -Wundef -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Wconversion -Wsign-compare -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wnested-externs -Winline"
|
|
|
|
# Production
|
|
case "$cc_vendor-$cc_version" in
|
|
gcc-2.95.[34]|gcc-3*)
|
|
PROD_CFLAGS="-O3 $NOFP"
|
|
;;
|
|
*)
|
|
PROD_CFLAGS="-O $NOFP -finline-functions"
|
|
;;
|
|
esac
|
|
PROD_CPPFLAGS=
|
|
|
|
# Debug
|
|
DEBUG_CFLAGS="-g -fverbose-asm"
|
|
DEBUG_CPPFLAGS=
|
|
|
|
# Profile
|
|
PROFILE_CFLAGS=-pg
|
|
PROFILE_CPPFLAGS=
|
|
|
|
;;
|
|
esac
|
|
|
|
# Version specific GCC flags
|
|
#
|
|
# Please follow the pattern below by adding new versions at the top, copying
|
|
# the information from the previous version and adding modifications to that.
|
|
case "$cc_vendor-$cc_version" in
|
|
gcc-3.3*)
|
|
# Replace -ansi flag with -std=c99 flag
|
|
CFLAGS="`echo $CFLAGS | sed -e 's/-ansi/-std=c99/g'`"
|
|
|
|
# Append warning flags from gcc-2.95.* case
|
|
CFLAGS="$CFLAGS -Wno-long-long"
|
|
|
|
# Append warning flags from gcc-3* case
|
|
CFLAGS="$CFLAGS -Wfloat-equal -Wmissing-format-attribute -Wpadded"
|
|
|
|
# Append warning flags from gcc-3.2* case
|
|
CFLAGS="$CFLAGS -Wmissing-noreturn -Wpacked -Wdisabled-optimization"
|
|
# The "format=2" warning generates too many warnings about valid
|
|
# usage in the library.
|
|
#CFLAGS="$CFLAGS -Wformat=2"
|
|
# The "unreachable code" warning does not appear to be reliable yet...
|
|
#CFLAGS="$CFLAGS -Wunreachable-code"
|
|
|
|
# Append more extra warning flags that only gcc3.3+ know about
|
|
CFLAGS="$CFLAGS -Wendif-labels"
|
|
|
|
# Flags are set
|
|
cc_flags_set=yes
|
|
;;
|
|
|
|
gcc-3.2*)
|
|
# Replace -ansi flag with -std=c99 flag
|
|
CFLAGS="`echo $CFLAGS | sed -e 's/-ansi/-std=c99/g'`"
|
|
|
|
# Append warning flags from gcc-2.95.* case
|
|
CFLAGS="$CFLAGS -Wno-long-long"
|
|
|
|
# Append warning flags from gcc-3* case
|
|
CFLAGS="$CFLAGS -Wfloat-equal -Wmissing-format-attribute -Wpadded"
|
|
|
|
# Append more extra warning flags that only gcc3.2+ know about
|
|
CFLAGS="$CFLAGS -Wmissing-noreturn -Wpacked -Wdisabled-optimization"
|
|
# The "format=2" warning generates too many warnings about valid
|
|
# usage in the library.
|
|
#CFLAGS="$CFLAGS -Wformat=2"
|
|
# The "unreachable code" warning does not appear to be reliable yet...
|
|
#CFLAGS="$CFLAGS -Wunreachable-code"
|
|
|
|
# Flags are set
|
|
cc_flags_set=yes
|
|
;;
|
|
|
|
gcc-3*)
|
|
# Replace -ansi flag with -std=c99 flag
|
|
CFLAGS="`echo $CFLAGS | sed -e 's/-ansi/-std=c99/g'`"
|
|
|
|
# Append warning flags from gcc-2.95.* case
|
|
CFLAGS="$CFLAGS -Wno-long-long"
|
|
|
|
# Append some extra warning flags that only gcc3+ know about
|
|
CFLAGS="$CFLAGS -Wfloat-equal -Wmissing-format-attribute -Wpadded"
|
|
|
|
# Flags are set
|
|
cc_flags_set=yes
|
|
;;
|
|
|
|
gcc-2.95*)
|
|
# Append some extra warning flags that only gcc2.95+ know about
|
|
CFLAGS="$CFLAGS -Wno-long-long"
|
|
|
|
# Flags are set
|
|
cc_flags_set=yes
|
|
;;
|
|
esac
|
|
|
|
# Clear cc info if no flags set
|
|
if test X = "X$cc_flags_set"; then
|
|
cc_vendor=
|
|
cc_version=
|
|
fi
|