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aclocal.m4
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dnl $XTermId: aclocal.m4,v 1.360 2013/02/03 19:30:21 tom Exp $
dnl
dnl ---------------------------------------------------------------------------
dnl
dnl Copyright 1997-2012,2013 by Thomas E. Dickey
dnl
dnl All Rights Reserved
dnl
dnl Permission is hereby granted, free of charge, to any person obtaining a
dnl copy of this software and associated documentation files (the
dnl "Software"), to deal in the Software without restriction, including
dnl without limitation the rights to use, copy, modify, merge, publish,
dnl distribute, sublicense, and/or sell copies of the Software, and to
dnl permit persons to whom the Software is furnished to do so, subject to
dnl the following conditions:
dnl
dnl The above copyright notice and this permission notice shall be included
dnl in all copies or substantial portions of the Software.
dnl
dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
dnl IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
dnl CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
dnl TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
dnl SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
dnl
dnl Except as contained in this notice, the name(s) of the above copyright
dnl holders shall not be used in advertising or otherwise to promote the
dnl sale, use or other dealings in this Software without prior written
dnl authorization.
dnl
dnl ---------------------------------------------------------------------------
dnl See
dnl http://invisible-island.net/autoconf/autoconf.html
dnl ---------------------------------------------------------------------------
dnl ---------------------------------------------------------------------------
dnl AM_LANGINFO_CODESET version: 3 updated: 2002/10/27 23:21:42
dnl -------------------
dnl Inserted as requested by gettext 0.10.40
dnl File from /usr/share/aclocal
dnl codeset.m4
dnl ====================
dnl serial AM1
dnl
dnl From Bruno Haible.
AC_DEFUN([AM_LANGINFO_CODESET],
[
AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
[AC_TRY_LINK([#include <langinfo.h>],
[char* cs = nl_langinfo(CODESET);],
am_cv_langinfo_codeset=yes,
am_cv_langinfo_codeset=no)
])
if test $am_cv_langinfo_codeset = yes; then
AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
[Define if you have <langinfo.h> and nl_langinfo(CODESET).])
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_ACVERSION_CHECK version: 3 updated: 2012/10/03 18:39:53
dnl ------------------
dnl Conditionally generate script according to whether we're using a given autoconf.
dnl
dnl $1 = version to compare against
dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
dnl $3 = code to use if AC_ACVERSION is older than $1.
define([CF_ACVERSION_CHECK],
[
ifdef([m4_version_compare],
[m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
[CF_ACVERSION_COMPARE(
AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
dnl ---------------------------------------------------------------------------
dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
dnl --------------------
dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
dnl MAJOR2, MINOR2, TERNARY2,
dnl PRINTABLE2, not FOUND, FOUND)
define([CF_ACVERSION_COMPARE],
[ifelse(builtin([eval], [$2 < $5]), 1,
[ifelse([$8], , ,[$8])],
[ifelse([$9], , ,[$9])])])dnl
dnl ---------------------------------------------------------------------------
dnl CF_ADD_CFLAGS version: 10 updated: 2010/05/26 05:38:42
dnl -------------
dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
dnl The second parameter if given makes this macro verbose.
dnl
dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
dnl confused by the quotes (which require backslashes to keep them usable).
AC_DEFUN([CF_ADD_CFLAGS],
[
cf_fix_cppflags=no
cf_new_cflags=
cf_new_cppflags=
cf_new_extra_cppflags=
for cf_add_cflags in $1
do
case $cf_fix_cppflags in
no)
case $cf_add_cflags in #(vi
-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C) #(vi
case $cf_add_cflags in
-D*)
cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
test "${cf_add_cflags}" != "${cf_tst_cflags}" \
&& test -z "${cf_tst_cflags}" \
&& cf_fix_cppflags=yes
if test $cf_fix_cppflags = yes ; then
cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
continue
elif test "${cf_tst_cflags}" = "\"'" ; then
cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
continue
fi
;;
esac
case "$CPPFLAGS" in
*$cf_add_cflags) #(vi
;;
*) #(vi
case $cf_add_cflags in #(vi
-D*)
cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
;;
esac
cf_new_cppflags="$cf_new_cppflags $cf_add_cflags"
;;
esac
;;
*)
cf_new_cflags="$cf_new_cflags $cf_add_cflags"
;;
esac
;;
yes)
cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
test "${cf_add_cflags}" != "${cf_tst_cflags}" \
&& test -z "${cf_tst_cflags}" \
&& cf_fix_cppflags=no
;;
esac
done
if test -n "$cf_new_cflags" ; then
ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
CFLAGS="$CFLAGS $cf_new_cflags"
fi
if test -n "$cf_new_cppflags" ; then
ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
CPPFLAGS="$CPPFLAGS $cf_new_cppflags"
fi
if test -n "$cf_new_extra_cppflags" ; then
ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
EXTRA_CPPFLAGS="$cf_new_extra_cppflags $EXTRA_CPPFLAGS"
fi
AC_SUBST(EXTRA_CPPFLAGS)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
dnl ----------
dnl Add a library, used to enforce consistency.
dnl
dnl $1 = library to add, without the "-l"
dnl $2 = variable to update (default $LIBS)
AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
dnl ---------------------------------------------------------------------------
dnl CF_ADD_LIBS version: 1 updated: 2010/06/02 05:03:05
dnl -----------
dnl Add one or more libraries, used to enforce consistency.
dnl
dnl $1 = libraries to add, with the "-l", etc.
dnl $2 = variable to update (default $LIBS)
AC_DEFUN([CF_ADD_LIBS],[ifelse($2,,LIBS,[$2])="$1 [$]ifelse($2,,LIBS,[$2])"])dnl
dnl ---------------------------------------------------------------------------
dnl CF_ADD_LIB_AFTER version: 2 updated: 2010/11/08 20:33:46
dnl ----------------
dnl Add a given library after another, e.g., following the one it satisfies a
dnl dependency for.
dnl
dnl $1 = the first library
dnl $2 = its dependency
AC_DEFUN([CF_ADD_LIB_AFTER],[
CF_VERBOSE(...before $LIBS)
LIBS=`echo "$LIBS" | sed -e "s/[[ ]][[ ]]*/ /g" -e "s,$1 ,$1 $2 ," -e 's/ / /g'`
CF_VERBOSE(...after $LIBS)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
dnl --------------
dnl Allow user to disable a normally-on option.
AC_DEFUN([CF_ARG_DISABLE],
[CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
dnl ---------------------------------------------------------------------------
dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
dnl -------------
dnl Allow user to enable a normally-off option.
AC_DEFUN([CF_ARG_ENABLE],
[CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
dnl ---------------------------------------------------------------------------
dnl CF_ARG_OPTION version: 4 updated: 2010/05/26 05:38:42
dnl -------------
dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
dnl values.
dnl
dnl Parameters:
dnl $1 = option name
dnl $2 = help-string
dnl $3 = action to perform if option is not default
dnl $4 = action if perform if option is default
dnl $5 = default option value (either 'yes' or 'no')
AC_DEFUN([CF_ARG_OPTION],
[AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
if test "$enableval" != "$5" ; then
ifelse([$3],,[ :]dnl
,[ $3]) ifelse([$4],,,[
else
$4])
fi],[enableval=$5 ifelse([$4],,,[
$4
])dnl
])])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CC_ENV_FLAGS version: 1 updated: 2012/10/03 05:25:49
dnl ---------------
dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
dnl into CC. This will not help with broken scripts that wrap the compiler with
dnl options, but eliminates a more common category of user confusion.
AC_DEFUN([CF_CC_ENV_FLAGS],
[
# This should have been defined by AC_PROG_CC
: ${CC:=cc}
AC_MSG_CHECKING(\$CC variable)
case "$CC" in #(vi
*[[\ \ ]]-[[IUD]]*)
AC_MSG_RESULT(broken)
AC_MSG_WARN(your environment misuses the CC variable to hold CFLAGS/CPPFLAGS options)
# humor him...
cf_flags=`echo "$CC" | sed -e 's/^[[^ ]]*[[ ]]//'`
CC=`echo "$CC" | sed -e 's/[[ ]].*//'`
CF_ADD_CFLAGS($cf_flags)
;;
*)
AC_MSG_RESULT(ok)
;;
esac
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
dnl --------------
dnl Check if we're accidentally using a cache from a different machine.
dnl Derive the system name, as a check for reusing the autoconf cache.
dnl
dnl If we've packaged config.guess and config.sub, run that (since it does a
dnl better job than uname). Normally we'll use AC_CANONICAL_HOST, but allow
dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
dnl which is useful in cross-compiles.
dnl
dnl Note: we would use $ac_config_sub, but that is one of the places where
dnl autoconf 2.5x broke compatibility with autoconf 2.13
AC_DEFUN([CF_CHECK_CACHE],
[
if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
ifelse([$1],,[AC_CANONICAL_HOST],[$1])
system_name="$host_os"
else
system_name="`(uname -s -r) 2>/dev/null`"
if test -z "$system_name" ; then
system_name="`(hostname) 2>/dev/null`"
fi
fi
test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
test -z "$system_name" && system_name="$cf_cv_system_name"
test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
if test ".$system_name" != ".$cf_cv_system_name" ; then
AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
AC_MSG_ERROR("Please remove config.cache and try again.")
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CHECK_CFLAGS version: 2 updated: 2001/12/30 19:09:58
dnl ---------------
dnl Conditionally add to $CFLAGS and $CPPFLAGS values which are derived from
dnl a build-configuration such as imake. These have the pitfall that they
dnl often contain compiler-specific options which we cannot use, mixed with
dnl preprocessor options that we usually can.
AC_DEFUN([CF_CHECK_CFLAGS],
[
CF_VERBOSE(checking additions to CFLAGS)
cf_check_cflags="$CFLAGS"
cf_check_cppflags="$CPPFLAGS"
CF_ADD_CFLAGS($1,yes)
if test "$cf_check_cflags" != "$CFLAGS" ; then
AC_TRY_LINK([#include <stdio.h>],[printf("Hello world");],,
[CF_VERBOSE(test-compile failed. Undoing change to \$CFLAGS)
if test "$cf_check_cppflags" != "$CPPFLAGS" ; then
CF_VERBOSE(but keeping change to \$CPPFLAGS)
fi
CFLAGS="$cf_check_flags"])
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CHECK_ERRNO version: 11 updated: 2010/05/26 05:38:42
dnl --------------
dnl Check for data that is usually declared in <stdio.h> or <errno.h>, e.g.,
dnl the 'errno' variable. Define a DECL_xxx symbol if we must declare it
dnl ourselves.
dnl
dnl $1 = the name to check
dnl $2 = the assumed type
AC_DEFUN([CF_CHECK_ERRNO],
[
AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
AC_TRY_COMPILE([
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <stdio.h>
#include <sys/types.h>
#include <errno.h> ],
ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1,
[cf_cv_dcl_$1=yes],
[cf_cv_dcl_$1=no])
])
if test "$cf_cv_dcl_$1" = no ; then
CF_UPPER(cf_result,decl_$1)
AC_DEFINE_UNQUOTED($cf_result)
fi
# It's possible (for near-UNIX clones) that the data doesn't exist
CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CHECK_EXTERN_DATA version: 3 updated: 2001/12/30 18:03:23
dnl --------------------
dnl Check for existence of external data in the current set of libraries. If
dnl we can modify it, it's real enough.
dnl $1 = the name to check
dnl $2 = its type
AC_DEFUN([CF_CHECK_EXTERN_DATA],
[
AC_CACHE_CHECK(if external $1 exists, cf_cv_have_$1,[
AC_TRY_LINK([
#undef $1
extern $2 $1;
],
[$1 = 2],
[cf_cv_have_$1=yes],
[cf_cv_have_$1=no])
])
if test "$cf_cv_have_$1" = yes ; then
CF_UPPER(cf_result,have_$1)
AC_DEFINE_UNQUOTED($cf_result)
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CLANG_COMPILER version: 1 updated: 2012/06/16 14:55:39
dnl -----------------
dnl Check if the given compiler is really clang. clang's C driver defines
dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
dnl not ignore some gcc options.
dnl
dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
dnl the wrappers for gcc and g++ warnings.
dnl
dnl $1 = GCC (default) or GXX
dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
dnl $3 = CFLAGS (default) or CXXFLAGS
AC_DEFUN([CF_CLANG_COMPILER],[
ifelse([$2],,CLANG_COMPILER,[$2])=no
if test "$ifelse([$1],,[$1],GCC)" = yes ; then
AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
AC_TRY_COMPILE([],[
#ifdef __clang__
#else
make an error
#endif
],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
],[])
ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
fi
])
dnl ---------------------------------------------------------------------------
dnl CF_DISABLE_DESKTOP version: 2 updated: 2011/04/22 05:17:37
dnl ------------------
dnl Handle a configure option "--disable-desktop", which sets a shell
dnl variable $desktop_utils to a "#" if the feature is not wanted, or to an
dnl empty string if enabled. The variable is used to substitute in front of
dnl corresponding makefile-rules.
dnl
dnl It also tells the configure script to substitute the environment variable
dnl $DESKTOP_FLAGS, which can be used by external scripts to customize the
dnl invocation of desktop-file-util.
dnl
dnl $1 = program name
AC_DEFUN([CF_DISABLE_DESKTOP],[
# Comment-out the install-desktop rule if the desktop-utils are not found.
AC_MSG_CHECKING(if you want to install desktop files)
CF_ARG_OPTION(desktop,
[ --disable-desktop disable install of $1 desktop files],
[enable_desktop=$enableval],
[enable_desktop=$enableval],yes)
AC_MSG_RESULT($enable_desktop)
desktop_utils=
if test "$enable_desktop" = yes ; then
AC_CHECK_PROG(desktop_utils,desktop-file-install,yes,no)
fi
test "$desktop_utils" = yes && desktop_utils= || desktop_utils="#"
AC_SUBST(DESKTOP_FLAGS)
])
dnl ---------------------------------------------------------------------------
dnl CF_DISABLE_ECHO version: 12 updated: 2012/10/06 16:30:28
dnl ---------------
dnl You can always use "make -n" to see the actual options, but it's hard to
dnl pick out/analyze warning messages when the compile-line is long.
dnl
dnl Sets:
dnl ECHO_LT - symbol to control if libtool is verbose
dnl ECHO_LD - symbol to prefix "cc -o" lines
dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
dnl SHOW_CC - symbol to put before explicit "cc -c" lines
dnl ECHO_CC - symbol to put before any "cc" line
dnl
AC_DEFUN([CF_DISABLE_ECHO],[
AC_MSG_CHECKING(if you want to see long compiling messages)
CF_ARG_DISABLE(echo,
[ --disable-echo do not display "compiling" commands],
[
ECHO_LT='--silent'
ECHO_LD='@echo linking [$]@;'
RULE_CC='@echo compiling [$]<'
SHOW_CC='@echo compiling [$]@'
ECHO_CC='@'
],[
ECHO_LT=''
ECHO_LD=''
RULE_CC=''
SHOW_CC=''
ECHO_CC=''
])
AC_MSG_RESULT($enableval)
AC_SUBST(ECHO_LT)
AC_SUBST(ECHO_LD)
AC_SUBST(RULE_CC)
AC_SUBST(SHOW_CC)
AC_SUBST(ECHO_CC)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_DISABLE_LEAKS version: 7 updated: 2012/10/02 20:55:03
dnl ----------------
dnl Combine no-leak checks with the libraries or tools that are used for the
dnl checks.
AC_DEFUN([CF_DISABLE_LEAKS],[
AC_REQUIRE([CF_WITH_DMALLOC])
AC_REQUIRE([CF_WITH_DBMALLOC])
AC_REQUIRE([CF_WITH_VALGRIND])
AC_MSG_CHECKING(if you want to perform memory-leak testing)
AC_ARG_ENABLE(leaks,
[ --disable-leaks test: free permanent memory, analyze leaks],
[if test "x$enableval" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi],
: ${with_no_leaks:=no})
AC_MSG_RESULT($with_no_leaks)
if test "$with_no_leaks" = yes ; then
AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_DISABLE_RPATH_HACK version: 2 updated: 2011/02/13 13:31:33
dnl ---------------------
dnl The rpath-hack makes it simpler to build programs, particularly with the
dnl *BSD ports which may have essential libraries in unusual places. But it
dnl can interfere with building an executable for the base system. Use this
dnl option in that case.
AC_DEFUN([CF_DISABLE_RPATH_HACK],
[
AC_MSG_CHECKING(if rpath-hack should be disabled)
CF_ARG_DISABLE(rpath-hack,
[ --disable-rpath-hack don't add rpath options for additional libraries],
[cf_disable_rpath_hack=yes],
[cf_disable_rpath_hack=no])
AC_MSG_RESULT($cf_disable_rpath_hack)
if test "$cf_disable_rpath_hack" = no ; then
CF_RPATH_HACK
fi
])
dnl ---------------------------------------------------------------------------
dnl CF_ENABLE_NARROWPROTO version: 3 updated: 2006/02/12 17:46:00
dnl ---------------------
dnl If this is not set properly, Xaw's scrollbars will not work.
dnl The so-called "modular" configuration for X.org omits most of the
dnl configure checks that would be needed to provide compatibility with
dnl older X builds. This one breaks things noticeably.
AC_DEFUN([CF_ENABLE_NARROWPROTO],
[
AC_MSG_CHECKING(if you want narrow prototypes for X libraries)
case `$ac_config_guess` in #(vi
*cygwin*|*freebsd*|*gnu*|*irix5*|*irix6*|*linux-gnu*|*netbsd*|*openbsd*|*qnx*|*sco*|*sgi*) #(vi
cf_default_narrowproto=yes
;;
*)
cf_default_narrowproto=no
;;
esac
CF_ARG_OPTION(narrowproto,
[ --enable-narrowproto enable narrow prototypes for X libraries],
[enable_narrowproto=$enableval],
[enable_narrowproto=$cf_default_narrowproto],
[$cf_default_narrowproto])
AC_MSG_RESULT($enable_narrowproto)
])
dnl ---------------------------------------------------------------------------
dnl CF_ERRNO version: 5 updated: 1997/11/30 12:44:39
dnl --------
dnl Check if 'errno' is declared in <errno.h>
AC_DEFUN([CF_ERRNO],
[
CF_CHECK_ERRNO(errno)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_FUNC_GRANTPT version: 9 updated: 2012/10/04 05:24:07
dnl ---------------
dnl Check for grantpt versus openpty, as well as functions that "should" be
dnl available if grantpt is available.
AC_DEFUN([CF_FUNC_GRANTPT],[
AC_CHECK_HEADERS( \
stropts.h \
)
cf_func_grantpt="grantpt ptsname"
case $host_os in #(vi
darwin[[0-9]].*) #(vi
;;
*)
cf_func_grantpt="$cf_func_grantpt posix_openpt"
;;
esac
AC_CHECK_FUNCS($cf_func_grantpt)
cf_grantpt_opts=
if test "x$ac_cv_func_grantpt" = "xyes" ; then
AC_MSG_CHECKING(if grantpt really works)
AC_TRY_LINK(CF__GRANTPT_HEAD,CF__GRANTPT_BODY,[
AC_TRY_RUN(CF__GRANTPT_HEAD
int main(void)
{
CF__GRANTPT_BODY
}
,
,ac_cv_func_grantpt=no
,ac_cv_func_grantpt=maybe)
],ac_cv_func_grantpt=no)
AC_MSG_RESULT($ac_cv_func_grantpt)
if test "x$ac_cv_func_grantpt" != "xno" ; then
if test "x$ac_cv_func_grantpt" = "xyes" ; then
AC_MSG_CHECKING(for pty features)
dnl if we have no stropts.h, skip the checks for streams modules
if test "x$ac_cv_header_stropts_h" = xyes
then
cf_pty_this=0
else
cf_pty_this=3
fi
cf_pty_defines=
while test $cf_pty_this != 6
do
cf_pty_feature=
cf_pty_next=`expr $cf_pty_this + 1`
CF_MSG_LOG(pty feature test $cf_pty_next:5)
AC_TRY_RUN(#define CONFTEST $cf_pty_this
$cf_pty_defines
CF__GRANTPT_HEAD
int main(void)
{
CF__GRANTPT_BODY
}
,
[
case $cf_pty_next in #(vi
1) #(vi - streams
cf_pty_feature=ptem
;;
2) #(vi - streams
cf_pty_feature=ldterm
;;
3) #(vi - streams
cf_pty_feature=ttcompat
;;
4) #(vi
cf_pty_feature=pty_isatty
;;
5) #(vi
cf_pty_feature=pty_tcsetattr
;;
6) #(vi
cf_pty_feature=tty_tcsetattr
;;
esac
],[
case $cf_pty_next in #(vi
1|2|3)
CF_MSG_LOG(skipping remaining streams features $cf_pty_this..2)
cf_pty_next=3
;;
esac
])
if test -n "$cf_pty_feature"
then
cf_pty_defines="$cf_pty_defines
#define CONFTEST_$cf_pty_feature 1
"
cf_grantpt_opts="$cf_grantpt_opts $cf_pty_feature"
fi
cf_pty_this=$cf_pty_next
done
AC_MSG_RESULT($cf_grantpt_opts)
cf_grantpt_opts=`echo "$cf_grantpt_opts" | sed -e 's/ isatty//'`
fi
fi
fi
dnl If we found grantpt, but no features, e.g., for streams or if we are not
dnl able to use tcsetattr, then give openpty a try. In particular, Darwin 10.7
dnl has a more functional openpty than posix_openpt.
dnl
dnl There is no configure run-test for openpty, since its implementations do
dnl not always run properly as a non-root user.
if test "x$ac_cv_func_grantpt" != "xyes" || test -z "$cf_grantpt_opts" ; then
AC_CHECK_LIB(util, openpty, [cf_have_openpty=yes],[cf_have_openpty=no])
if test "$cf_have_openpty" = yes ; then
ac_cv_func_grantpt=no
LIBS="-lutil $LIBS"
AC_DEFINE(HAVE_OPENPTY,1,[Define to 1 if you have the openpty function])
AC_CHECK_HEADERS( \
util.h \
libutil.h \
pty.h \
)
fi
fi
dnl If we did not settle on using openpty, fill in the definitions for grantpt.
if test "x$ac_cv_func_grantpt" != xno
then
AC_DEFINE(HAVE_WORKING_GRANTPT,1,[Define to 1 if the grantpt function seems to work])
for cf_feature in $cf_grantpt_opts
do
cf_feature=`echo "$cf_feature" | sed -e 's/ //g'`
CF_UPPER(cf_FEATURE,$cf_feature)
AC_DEFINE_UNQUOTED(HAVE_GRANTPT_$cf_FEATURE)
done
elif test "x$cf_have_openpty" = xno
then
CF_VERBOSE(will rely upon BSD-pseudoterminals)
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_FUNC_TGETENT version: 19 updated: 2012/10/04 20:12:20
dnl ---------------
dnl Check for tgetent function in termcap library. If we cannot find this,
dnl we'll use the $LINES and $COLUMNS environment variables to pass screen
dnl size information to subprocesses. (We cannot use terminfo's compatibility
dnl function, since it cannot provide the termcap-format data).
dnl
dnl If the --disable-full-tgetent option is given, we'll settle for the first
dnl tgetent function we find. Since the search list in that case does not
dnl include the termcap library, that allows us to default to terminfo.
AC_DEFUN([CF_FUNC_TGETENT],
[
# compute a reasonable value for $TERM to give tgetent(), since we may be
# running in 'screen', which sets $TERMCAP to a specific entry that is not
# necessarily in /etc/termcap - unsetenv is not portable, so we cannot simply
# discard $TERMCAP.
cf_TERMVAR=vt100
if test -n "$TERMCAP"
then
cf_TERMCAP=`echo "$TERMCAP" | tr '\n' ' ' | sed -e 's/^..|//' -e 's/|.*//'`
case "$cf_TERMCAP" in #(vi
screen*.*) #(vi
;;
*)
cf_TERMVAR="$cf_TERMCAP"
;;
esac
fi
test -z "$cf_TERMVAR" && cf_TERMVAR=vt100
AC_MSG_CHECKING(if we want full tgetent function)
CF_ARG_DISABLE(full-tgetent,
[ --disable-full-tgetent disable check for full tgetent function],
cf_full_tgetent=no,
cf_full_tgetent=yes,yes)
AC_MSG_RESULT($cf_full_tgetent)
if test "$cf_full_tgetent" = yes ; then
cf_test_message="full tgetent"
else
cf_test_message="tgetent"
fi
AC_CACHE_CHECK(for $cf_test_message function,cf_cv_lib_tgetent,[
cf_save_LIBS="$LIBS"
cf_cv_lib_tgetent=no
if test "$cf_full_tgetent" = yes ; then
cf_TERMLIB="otermcap termcap termlib ncurses curses"
cf_TERMTST="buffer[[0]] == 0"
else
cf_TERMLIB="termlib ncurses curses"
cf_TERMTST="0"
fi
for cf_termlib in '' $cf_TERMLIB ; do
LIBS="$cf_save_LIBS"
test -n "$cf_termlib" && CF_ADD_LIB($cf_termlib)
AC_TRY_RUN([
/* terminfo implementations ignore the buffer argument, making it useless for
* the xterm application, which uses this information to make a new TERMCAP
* environment variable.
*/
int main()
{
char buffer[1024];
buffer[0] = 0;
tgetent(buffer, "$cf_TERMVAR");
${cf_cv_main_return:-return} ($cf_TERMTST); }],
[echo "yes, there is a termcap/tgetent in $cf_termlib" 1>&AC_FD_CC
if test -n "$cf_termlib" ; then
cf_cv_lib_tgetent="-l$cf_termlib"
else
cf_cv_lib_tgetent=yes
fi
break],
[echo "no, there is no termcap/tgetent in $cf_termlib" 1>&AC_FD_CC],
[echo "cross-compiling, cannot verify if a termcap/tgetent is present in $cf_termlib" 1>&AC_FD_CC])
done
LIBS="$cf_save_LIBS"
])
# If we found a working tgetent(), set LIBS and check for termcap.h.
# (LIBS cannot be set inside AC_CACHE_CHECK; the commands there should
# not have side effects other than setting the cache variable, because
# they are not executed when a cached value exists.)
if test "x$cf_cv_lib_tgetent" != xno ; then
test "x$cf_cv_lib_tgetent" != xyes && CF_ADD_LIBS($cf_cv_lib_tgetent)
AC_DEFINE(USE_TERMCAP,1,[Define 1 to indicate that working tgetent is found])
if test "$cf_full_tgetent" = no ; then
AC_TRY_COMPILE([
#include <termcap.h>],[
#ifdef NCURSES_VERSION
make an error
#endif],[AC_DEFINE(HAVE_TERMCAP_H)])
else
AC_CHECK_HEADERS(termcap.h)
fi
else
# If we didn't find a tgetent() that supports the buffer
# argument, look again to see whether we can find even
# a crippled one. A crippled tgetent() is still useful to
# validate values for the TERM environment variable given to
# child processes.
AC_CACHE_CHECK(for partial tgetent function,cf_cv_lib_part_tgetent,[
cf_cv_lib_part_tgetent=no
for cf_termlib in $cf_TERMLIB ; do
LIBS="$cf_save_LIBS -l$cf_termlib"
AC_TRY_LINK([],[tgetent(0, "$cf_TERMVAR")],
[echo "there is a terminfo/tgetent in $cf_termlib" 1>&AC_FD_CC
cf_cv_lib_part_tgetent="-l$cf_termlib"
break])
done
LIBS="$cf_save_LIBS"
])
if test "$cf_cv_lib_part_tgetent" != no ; then
CF_ADD_LIBS($cf_cv_lib_part_tgetent)
AC_CHECK_HEADERS(termcap.h)
# If this is linking against ncurses, we'll trigger the
# ifdef in resize.c that turns the termcap stuff back off.
AC_DEFINE(USE_TERMINFO,1,[Define to 1 to indicate that terminfo provides the tgetent interface])
fi
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_GCC_ATTRIBUTES version: 16 updated: 2012/10/02 20:55:03
dnl -----------------
dnl Test for availability of useful gcc __attribute__ directives to quiet
dnl compiler warnings. Though useful, not all are supported -- and contrary
dnl to documentation, unrecognized directives cause older compilers to barf.
AC_DEFUN([CF_GCC_ATTRIBUTES],
[
if test "$GCC" = yes
then
cat > conftest.i <<EOF
#ifndef GCC_PRINTF
#define GCC_PRINTF 0
#endif
#ifndef GCC_SCANF
#define GCC_SCANF 0
#endif
#ifndef GCC_NORETURN
#define GCC_NORETURN /* nothing */
#endif
#ifndef GCC_UNUSED
#define GCC_UNUSED /* nothing */
#endif
EOF
if test "$GCC" = yes
then
AC_CHECKING([for $CC __attribute__ directives])
cat > conftest.$ac_ext <<EOF
#line __oline__ "${as_me:-configure}"
#include "confdefs.h"
#include "conftest.h"
#include "conftest.i"
#if GCC_PRINTF
#define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
#else
#define GCC_PRINTFLIKE(fmt,var) /*nothing*/
#endif
#if GCC_SCANF
#define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
#else
#define GCC_SCANFLIKE(fmt,var) /*nothing*/
#endif
extern void wow(char *,...) GCC_SCANFLIKE(1,2);
extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
extern void foo(void) GCC_NORETURN;
int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
EOF
cf_printf_attribute=no
cf_scanf_attribute=no
for cf_attribute in scanf printf unused noreturn
do
CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
cf_directive="__attribute__(($cf_attribute))"
echo "checking for $CC $cf_directive" 1>&AC_FD_CC
case $cf_attribute in #(vi
printf) #(vi
cf_printf_attribute=yes
cat >conftest.h <<EOF
#define GCC_$cf_ATTRIBUTE 1
EOF
;;
scanf) #(vi
cf_scanf_attribute=yes
cat >conftest.h <<EOF
#define GCC_$cf_ATTRIBUTE 1
EOF
;;
*) #(vi
cat >conftest.h <<EOF
#define GCC_$cf_ATTRIBUTE $cf_directive
EOF
;;
esac
if AC_TRY_EVAL(ac_compile); then
test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
cat conftest.h >>confdefs.h
case $cf_attribute in #(vi
noreturn) #(vi
AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
;;
printf) #(vi
cf_value='/* nothing */'
if test "$cf_printf_attribute" != no ; then
cf_value='__attribute__((format(printf,fmt,var)))'
AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
fi
AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
;;
scanf) #(vi
cf_value='/* nothing */'
if test "$cf_scanf_attribute" != no ; then
cf_value='__attribute__((format(scanf,fmt,var)))'
AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
fi
AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
;;
unused) #(vi
AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
;;
esac
fi
done
else
fgrep define conftest.i >>confdefs.h
fi
rm -rf conftest*
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_GCC_VERSION version: 7 updated: 2012/10/18 06:46:33
dnl --------------
dnl Find version of gcc
AC_DEFUN([CF_GCC_VERSION],[
AC_REQUIRE([AC_PROG_CC])
GCC_VERSION=none
if test "$GCC" = yes ; then
AC_MSG_CHECKING(version of $CC)
GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
test -z "$GCC_VERSION" && GCC_VERSION=unknown
AC_MSG_RESULT($GCC_VERSION)
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_GCC_WARNINGS version: 29 updated: 2012/06/16 14:55:39
dnl ---------------
dnl Check if the compiler supports useful warning options. There's a few that
dnl we don't use, simply because they're too noisy:
dnl
dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
dnl -Wredundant-decls (system headers make this too noisy)
dnl -Wtraditional (combines too many unrelated messages, only a few useful)
dnl -Wwrite-strings (too noisy, but should review occasionally). This
dnl is enabled for ncurses using "--enable-const".
dnl -pedantic
dnl
dnl Parameter:
dnl $1 is an optional list of gcc warning flags that a particular
dnl application might want to use, e.g., "no-unused" for
dnl -Wno-unused
dnl Special:
dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
dnl
AC_DEFUN([CF_GCC_WARNINGS],
[
AC_REQUIRE([CF_GCC_VERSION])
CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
cat > conftest.$ac_ext <<EOF
#line __oline__ "${as_me:-configure}"
int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
EOF
if test "$INTEL_COMPILER" = yes
then
# The "-wdXXX" options suppress warnings:
# remark #1419: external declaration in primary source file
# remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
# remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
# remark #193: zero used for undefined preprocessing identifier
# remark #593: variable "curs_sb_left_arrow" was set but never used
# remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
# remark #869: parameter "tw" was never referenced
# remark #981: operands are evaluated in unspecified order
# warning #279: controlling expression is constant
AC_CHECKING([for $CC warning options])
cf_save_CFLAGS="$CFLAGS"
EXTRA_CFLAGS="-Wall"
for cf_opt in \
wd1419 \
wd1683 \
wd1684 \
wd193 \
wd593 \
wd279 \