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42 lines
1.5 KiB
Plaintext
Executable File
42 lines
1.5 KiB
Plaintext
Executable File
# =============================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_cxx_cppflags_std_lang.html
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# =============================================================================
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#
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# SYNOPSIS
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#
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# AX_CXX_CPPFLAGS_STD_LANG(CPP-FLAGS)
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#
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# DESCRIPTION
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#
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# Append to CPP-FLAGS the set of flags that should be passed to the C++
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# preprocessor in order to enable use of C++ features as defined in the
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# ANSI C++ standard (eg. use of standard iostream classes in the `std'
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# namespace, etc.).
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#
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# LICENSE
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#
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# Copyright (c) 2008 Ludovic Courtes <ludo@chbouib.org>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 10
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AU_ALIAS([AC_CXX_CPPFLAGS_STD_LANG], [AX_CXX_CPPFLAGS_STD_LANG])
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AC_DEFUN([AX_CXX_CPPFLAGS_STD_LANG],
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[AC_LANG_ASSERT([C++])
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AC_REQUIRE([AX_COMPILER_VENDOR])
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case "$ax_cv_cxx_compiler_vendor" in
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dec|compaq)
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# By default, Compaq CXX has an iostream classes implementation
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# that is _not_ in the `std' namespace.
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$1="$$1 -D__USE_STD_IOSTREAM=1";;
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hp)
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# When `configure' looks for a C++ header (eg. <iostream>) it invokes
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# `aCC -E $CPPFLAGS'. However, including standard C++ headers like
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# <iostream> fails if `-AA' is not supplied.
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$1="$$1 -AA";;
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esac])
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