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C++ vendor specific preprocessor switches (CPPFLAGS)
From: |
Ludovic Courtès |
Subject: |
C++ vendor specific preprocessor switches (CPPFLAGS) |
Date: |
Thu, 9 Sep 2004 11:32:39 +0200 |
User-agent: |
Mutt/1.5.4i [Guile enabled] |
Hi,
Yet another macro.
dnl @synopsis AC_CXX_CPPFLAGS_STD_LANG(CPP-FLAGS)
dnl
dnl Append to CPP-FLAGS the set of flags that should be passed to the
dnl C++ preprocessor in order to enable use of C++ features as defined
dnl in the ANSI C++ standard (eg. use of standard iostream classes in
dnl the `std' namespace, etc.).
dnl
dnl @version 20040907
dnl @author Ludovic Courtès <address@hidden>
AC_DEFUN([AC_CXX_CPPFLAGS_STD_LANG],
[AC_REQUIRE([AC_CXX_COMPILER_VENDOR])
case "$ac_cv_cxx_compiler_vendor" in
compaq)
# By default, Compaq CXX has an iostream classes implementation
# that is _not_ in the `std' namespace.
$1="$$1 -D__USE_STD_IOSTREAM=1";;
hp)
# When `configure' looks for a C++ header (eg. <iostream>) it invokes
# `aCC -E $CPPFLAGS'. However, including standard C++ headers like
# <iostream> fails if `-AA' is not supplied.
$1="$$1 -AA";;
esac])
Ludovic.
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