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* configure.ac: Add Intel compiler (icc) support. Although Intel

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tries really hard to make icc look like gcc, there are some
	  differences. It's very verbose with -Wall and it doesn't support
	  the individual -W options. We are going to ignore some of these
	  warnings.
This commit is contained in:
hasso 2005-03-27 13:07:23 +00:00
parent 44f8a75790
commit 1969e4b963
2 changed files with 43 additions and 6 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2005-03-27 Hasso Tepper <hasso at quagga.net>
* configure.ac: Add Intel compiler (icc) support. Although Intel
tries really hard to make icc look like gcc, there are some
differences. It's very verbose with -Wall and it doesn't support
the individual -W options. We are going to ignore some of these
warnings.
2005-03-26 Hasso Tepper <hasso at quagga.net>
* doc/defines.texi.in, lib/version.h.in: Update copyright string to

41
configure.ac
View file

@ -5,7 +5,7 @@
## Copyright (c) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro <kunihiro@zebra.org>
## Portions Copyright (c) 2003 Paul Jakma <paul@dishone.st>
##
## $Id: configure.ac,v 1.91 2005/03/25 13:05:47 vincent Exp $
## $Id: configure.ac,v 1.92 2005/03/27 13:07:23 hasso Exp $
AC_PREREQ(2.53)
AC_INIT(Quagga, 0.99.0, [http://bugzilla.quagga.net])
@ -49,10 +49,25 @@ elif test -n "$CFLAGS" ; then
cflags_specified=yes ;
fi
dnl --------
dnl Check CC
dnl --------
dnl --------------------
dnl Check CC and friends
dnl --------------------
AC_PROG_CC
AC_PROG_CPP
AC_PROG_EGREP
dnl ------------------------------------------------------------------
dnl Intel compiler check. Although Intel tries really hard to make icc
dnl look like gcc, there are some differences. It's very verbose with
dnl -Wall and it doesn't support the individual -W options.
dnl ------------------------------------------------------------------
AC_MSG_CHECKING([whether we are using the Intel compiler])
AC_EGREP_CPP([^__INTEL_COMPILER], [__INTEL_COMPILER],
ICC="no"
AC_MSG_RESULT([no]),
ICC="yes"
AC_MSG_RESULT([yes])
)
dnl ---------------------------------------------
dnl If CLFAGS doesn\'t exist set default value
@ -60,20 +75,34 @@ dnl AC_PROG_CC will have set minimal default
dnl already, eg "-O2 -g" for gcc, "-g" for others
dnl (Wall is gcc specific... have to make sure
dnl gcc is being used before setting it)
dnl Intel icc 8.0 also sets __GNUC__, but
dnl doesn't support all these fancy -W options.
dnl ---------------------------------------------
dnl
if test "x$cflags_specified" = "x" ; then
if test "x${GCC}" = "xyes"; then
if test "x${GCC}" = "xyes" && test "x${ICC}" = "xno"; then
CFLAGS="-Os -g -Wall -Wsign-compare -Wpointer-arith"
CFLAGS="${CFLAGS} -Wbad-function-cast -Wwrite-strings"
fi
# TODO: conditionally addd -Wpacked if handled
fi
dnl ---------------------------------------------------------------------
dnl Intel compiler warnings we ignore:
dnl 279: controlling expression is constant.
dnl 869: parameter "xxx" was never referenced - to avoid massive warnings
dnl about "self", "vty", "argc" and "argv" never referenced in DEFUN
dnl macro.
dnl 981: operands are evaluated in unspecified order.
dnl ---------------------------------------------------------------------
if test "$ICC" = "yes"; then
CFLAGS="-Os -g -Wall -wd 279,869,981"
fi
dnl --------------
dnl Check programs
dnl --------------
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_CHECK_TOOL(AR, ar)