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dnl @synopsis AC_COMPILE_WARNINGS
dnl
dnl Set the maximum warning verbosity according to compiler used.
dnl Currently supports g++ and gcc.
dnl This macro must be put after AC_PROG_CC and AC_PROG_CXX in
dnl configure.in
dnl
dnl @author Loic Dachary <loic@senga.org>
dnl
AC_DEFUN([AC_COMPILE_WARNINGS],
[AC_MSG_CHECKING(maximum warning verbosity option)
if test -n "$CXX"
then
if test "$GXX" = "yes"
then
ac_compile_warnings_opt='-Wall -W -Wno-unused-parameter -fstrict-aliasing -Wshadow'
fi
CXXFLAGS="$CXXFLAGS $ac_compile_warnings_opt"
ac_compile_warnings_msg="$ac_compile_warnings_opt for C++"
fi
if test -n "$CC"
then
if test "$GCC" = "yes"
then
ac_compile_warnings_opt='-Wall -W -Wno-unused-parameter -fstrict-aliasing -Wshadow'
fi
CFLAGS="$CFLAGS $ac_compile_warnings_opt"
ac_compile_warnings_msg="$ac_compile_warnings_msg $ac_compile_warnings_opt for C"
fi
AC_MSG_RESULT($ac_compile_warnings_msg)
unset ac_compile_warnings_msg
unset ac_compile_warnings_opt
])
dnl Copyright (C) 2001 Lorenzo Bettini <http://www.lorenzobettini.it>
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
dnl @synopsis AC_NONGNU_FLAGS
dnl
dnl check if the non-GNU C compiler accepts -Aa (HP-UX)
AC_DEFUN([AC_NONGNU_FLAGS],
[
if test -z "$GCC"; then
AC_CC_AA_FLAG
if test $ac_cv_cc_aa_flag = yes; then
CFLAGS="$CFLAGS -Aa"
fi
fi
])
dnl @synopsis AC_CC_AA_FLAG
dnl
dnl check if the C compiler accepts -Aa (HP-UX)
AC_DEFUN([AC_CC_AA_FLAG],
[AC_CACHE_CHECK(whether ${CC-cc} accepts -Aa, ac_cv_cc_aa_flag,
[echo 'void f(){}' > conftest.c
if test -z "`${CC-cc} -Aa -c conftest.c 2>&1`"; then
ac_cv_cc_aa_flag=yes
else
ac_cv_cc_aa_flag=no
fi
rm -f conftest*
])])
dnl @synopsis AC_CXX_NAMESPACES
dnl
dnl If the compiler can prevent names clashes using namespaces, define
dnl HAVE_NAMESPACES.
dnl
dnl @author Luc Maisonobe
dnl
AC_DEFUN([AC_CXX_NAMESPACES],
[AC_CACHE_CHECK(whether the compiler implements namespaces,
ac_cv_cxx_namespaces,
[AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([namespace Outer { namespace Inner { int i = 0; }}],
[using namespace Outer::Inner; return i;],
ac_cv_cxx_namespaces=yes, ac_cv_cxx_namespaces=no)
AC_LANG_RESTORE
])
if test "$ac_cv_cxx_namespaces" = yes; then
AC_DEFINE(HAVE_NAMESPACES,,[define if the compiler implements namespaces])
fi
])
dnl @synopsis AC_CXX_HAVE_STL
dnl
dnl If the compiler supports the Standard Template Library, define HAVE_STL.
dnl
dnl @author Luc Maisonobe
dnl
AC_DEFUN([AC_CXX_HAVE_STL],
[AC_CACHE_CHECK(whether the compiler supports Standard Template Library,
ac_cv_cxx_have_stl,
[AC_REQUIRE([AC_CXX_NAMESPACES])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <list>
#include <deque>
#ifdef HAVE_NAMESPACES
using namespace std;
#endif],[list<int> x; x.push_back(5);
list<int>::iterator iter = x.begin(); if (iter != x.end()) ++iter; return 0;],
ac_cv_cxx_have_stl=yes, ac_cv_cxx_have_stl=no)
AC_LANG_RESTORE
])
if test "$ac_cv_cxx_have_stl" = yes; then
AC_DEFINE(HAVE_STL,,[define if the compiler supports Standard Template Library])
fi
])
dnl @synopsis AC_CXX_HAVE_SSTREAM
dnl
dnl If the C++ library has a working stringstream, define HAVE_SSTREAM.
dnl
dnl @author Ben Stanley
dnl
AC_DEFUN([AC_CXX_HAVE_SSTREAM],
[AC_CACHE_CHECK(whether the compiler has stringstream,
ac_cv_cxx_have_sstream,
[AC_REQUIRE([AC_CXX_NAMESPACES])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <sstream>
#ifdef HAVE_NAMESPACES
using namespace std;
#endif],[stringstream message; message << "Hello"; return 0;],
ac_cv_cxx_have_sstream=yes, ac_cv_cxx_have_sstream=no)
AC_LANG_RESTORE
])
if test "$ac_cv_cxx_have_sstream" = yes; then
AC_DEFINE(HAVE_SSTREAM,,[define if the compiler has stringstream])
fi
])
dnl Available from the GNU Autoconf Macro Archive at:
dnl http://www.gnu.org/software/ac-archive/htmldoc/adl_func_getopt_long.html
dnl
AC_PREREQ(2.49)
AC_DEFUN([adl_FUNC_GETOPT_LONG],
[# clean out junk possibly left behind by a previous configuration
rm -f lib/getopt.h
# Check for getopt_long support
AC_CHECK_HEADERS([getopt.h])
AC_CHECK_FUNCS([getopt_long],,
[# FreeBSD has a gnugetopt library for this
AC_CHECK_LIB([gnugetopt],[getopt_long],[AC_DEFINE([HAVE_GETOPT_LONG])],
[# use the GNU replacement
AC_LIBOBJ(getopt)
AC_LIBOBJ(getopt1)
AC_CONFIG_LINKS([src/getopt.h:src/gnugetopt.h])])])])
dnl Available from the GNU Autoconf Macro Archive at:
dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_c_long_long.html
dnl
AC_DEFUN([AC_C_LONG_LONG],
[AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,
[if test "$GCC" = yes; then
ac_cv_c_long_long=yes
else
AC_TRY_COMPILE(,[long long int i;],
ac_cv_c_long_long=yes,
ac_cv_c_long_long=no)
fi])
if test $ac_cv_c_long_long = yes; then
AC_DEFINE(HAVE_LONG_LONG)
fi
])
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