nginx/auto/cc/icc

# Copyright (C) Igor Sysoev


# Intel C++ compiler 7.1, 8.0, 8.1

NGX_ICC_VER=`$CC -V 2>&1 | grep 'Version' 2>&1 \
                         | sed -e 's/^.* Version \(.*\)   Build.*$/\1/'`

echo " + icc version: $NGX_ICC_VER"


# optimizations

CFLAGS="$CFLAGS -O"
# inline the functions declared with __inline
#CFLAGS="$CFLAGS -Ob1"
# inline any function, at the compiler's discretion
CFLAGS="$CFLAGS -Ob2"

# single-file IP optimizations
#IPO="-ip"
# multi-file IP optimizations
IPO="-ipo -ipo_obj"
CFLAGS="$CFLAGS $IPO"
CORE_LINK="$CORE_LINK $IPO"
CORE_LINK="$CORE_LINK -opt_report_file=$NGX_OBJS/opt_report_file"

case $CPU in
    pentium)
        # optimize for Pentium and Athlon
        CPU_OPT="-march=pentium"
    ;;

    pentiumpro)
        # optimize for Pentium Pro, Pentium II and Pentium III
        CPU_OPT="-mcpu=pentiumpro -march=pentiumpro"
    ;;

    pentium4)
        # optimize for Pentium 4, default
        CPU_OPT="-march=pentium4"
    ;;
esac

CFLAGS="$CFLAGS $CPU_OPT"

if [ ".$PCRE_OPT" = "." ]; then
    PCRE_OPT="-O $IPO $CPU_OPT"
fi

if [ ".$MD5_OPT" = "." ]; then
    MD5_OPT="-O $IPO $CPU_OPT"
fi

if [ ".$ZLIB_OPT" = "." ]; then
    ZLIB_OPT="-O $IPO $CPU_OPT"
fi


# warnings

CFLAGS="$CFLAGS -w2"

# disable some warnings

# invalid type conversion: "int" to "char *"
CFLAGS="$CFLAGS -wd171"
# argument is incompatible with corresponding format string conversion
CFLAGS="$CFLAGS -wd181"
# zero used for undefined preprocessing identifier
CFLAGS="$CFLAGS -wd193"
#the format string ends before this argument
CFLAGS="$CFLAGS -wd268"
# invalid format string conversion
CFLAGS="$CFLAGS -wd269"
# conversion from "long long" to "size_t" may lose significant bits
CFLAGS="$CFLAGS -wd810"
# parameter was never referenced
CFLAGS="$CFLAGS -wd869"

# STUB
# enumerated type mixed with another type
CFLAGS="$CFLAGS -wd188"
# controlling expression is constant
CFLAGS="$CFLAGS -wd279"
# operands are evaluated in unspecified order
CFLAGS="$CFLAGS -wd981"
# external definition with no prior declaration
CFLAGS="$CFLAGS -wd1418"
# external declaration in primary source file
CFLAGS="$CFLAGS -wd1419"

case "$NGX_ICC_VER" in
    8.*)
        # "cc" clobber ignored, warnings for Liunx's htons()
        CFLAGS="$CFLAGS -wd1469"

        # STUB
        # non-POD class type passed through ellipsis
        CFLAGS="$CFLAGS -wd1595"
    ;;

    *)
    ;;
esac

# stop on warning
CFLAGS="$CFLAGS -Werror"

# debug
CFLAGS="$CFLAGS -g"