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# -*- shell-script -*-
#
# This file should be sourced into configure if the compiler is the
# Intel icc compiler or a derivative. It is careful not to do anything
# if the compiler is not Intel; otherwise `cc_flags_set' is set to `yes'
#
# Get the compiler version in a way that works for icc
# icc unless a compiler version is already known
#
# cc_vendor: The compiler name: icc
# cc_version: Version number: 8.0
#
if test X = "X$cc_flags_set"; then
cc_version="`$CC $CFLAGS -V 2>&1 |grep 'Version'`"
if test X != "X$cc_version"; then
cc_vendor=icc
cc_version=`echo $cc_version |sed 's/.*Version \([-a-z0-9\.\-]*\).*/\1/'`
echo "compiler '$CC' is Intel $cc_vendor-$cc_version"
# Some version numbers
# Intel version numbers are of the form: "major.minor"
cc_vers_major=`echo $cc_version | cut -f1 -d.`
cc_vers_minor=`echo $cc_version | cut -f2 -d.`
#cc_vers_patch=`echo $cc_version | cut -f2 -d.`
test -n "$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 + $cc_vers_patch`
fi
fi
# Common Intel flags for various situations
if test "X-icc" = "X-$cc_vendor"; then
# Insert section about version specific problems from gnu-flags here, if
# necessary.
arch=
# Architecture-specific flags
# Nothing currently. (Uncomment code below and modify to add any)
#case "$host_os-$host_cpu" in
# *-i686)
# arch="-march=i686"
# ;;
#esac
# Host-specific flags
# Nothing currently. (Uncomment code below and modify to add any)
#case "`hostname`" in
# sleipnir.ncsa.uiuc.edu)
# arch="$arch -pipe"
# ;;
#esac
# General
# Default to C99 standard.
CFLAGS="${CFLAGS:--std=c99}"
# Production
PROD_CFLAGS="-O3"
PROD_CPPFLAGS=
# Debug
DEBUG_CFLAGS="-Wcheck -Wall -g -O0"
DEBUG_CPPFLAGS=
# Profile
# Use this for profiling with gprof
PROFILE_CFLAGS="-g -p"
PROFILE_CPPFLAGS=
# Flags are set
cc_flags_set=yes
fi
# Version specific ICC 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
icc-8.0*)
# v8.0 -O3 infinite loops when compiling test/tselect.c. Use -O2.
PROD_CFLAGS="-O2"
;;
icc-8.1*)
# Add C99 standard flag to enable definition of ULLONG_MAX because in Intel
# compiler header file limits.h, C99 has to be enable to define this macro.
# Compilers of Version 8 and before don't have this problem.
CFLAGS="$CFLAGS -std=c99"
;;
esac
# Clear cc info if no flags set
if test "X-$cc_flags_set" = "X-"; then
cc_vendor=
cc_version=
fi
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