xref: /freebsd/contrib/byacc/aclocal.m4 (revision 3fc36ee018bb836bd1796067cf4ef8683f166ebc) 
1dnl $Id: aclocal.m4,v 1.39 2016/03/25 00:06:44 tom Exp $
2dnl Macros for byacc configure script (Thomas E. Dickey)
3dnl ---------------------------------------------------------------------------
4dnl Copyright 2004-2015,2016 Thomas E. Dickey
5dnl
6dnl Permission is hereby granted, free of charge, to any person obtaining a
7dnl copy of this software and associated documentation files (the
8dnl "Software"), to deal in the Software without restriction, including
9dnl without limitation the rights to use, copy, modify, merge, publish,
10dnl distribute, distribute with modifications, sublicense, and/or sell
11dnl copies of the Software, and to permit persons to whom the Software is
12dnl furnished to do so, subject to the following conditions:
13dnl
14dnl The above copyright notice and this permission notice shall be included
15dnl in all copies or portions of the Software.
16dnl
17dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
21dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
22dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
23dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24dnl
25dnl Except as contained in this notice, the name(s) of the above copyright
26dnl holders shall not be used in advertising or otherwise to promote the
27dnl sale, use or other dealings in this Software without prior written
28dnl authorization.
29dnl ---------------------------------------------------------------------------
30dnl ---------------------------------------------------------------------------
31dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
32dnl ------------------
33dnl Conditionally generate script according to whether we're using a given autoconf.
34dnl
35dnl $1 = version to compare against
36dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
37dnl $3 = code to use if AC_ACVERSION is older than $1.
38define([CF_ACVERSION_CHECK],
39[
40ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
41ifdef([m4_version_compare],
42[m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
43[CF_ACVERSION_COMPARE(
44AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
45AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
46dnl ---------------------------------------------------------------------------
47dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
48dnl --------------------
49dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
50dnl                      MAJOR2, MINOR2, TERNARY2,
51dnl                      PRINTABLE2, not FOUND, FOUND)
52define([CF_ACVERSION_COMPARE],
53[ifelse(builtin([eval], [$2 < $5]), 1,
54[ifelse([$8], , ,[$8])],
55[ifelse([$9], , ,[$9])])])dnl
56dnl ---------------------------------------------------------------------------
57dnl CF_ADD_CFLAGS version: 12 updated: 2015/04/12 15:39:00
58dnl -------------
59dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
60dnl The second parameter if given makes this macro verbose.
61dnl
62dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
63dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
64dnl confused by the quotes (which require backslashes to keep them usable).
65AC_DEFUN([CF_ADD_CFLAGS],
66[
67cf_fix_cppflags=no
68cf_new_cflags=
69cf_new_cppflags=
70cf_new_extra_cppflags=
71
72for cf_add_cflags in $1
73do
74case $cf_fix_cppflags in
75(no)
76	case $cf_add_cflags in
77	(-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
78		case $cf_add_cflags in
79		(-D*)
80			cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
81
82			test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
83				&& test -z "${cf_tst_cflags}" \
84				&& cf_fix_cppflags=yes
85
86			if test $cf_fix_cppflags = yes ; then
87				cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
88				continue
89			elif test "${cf_tst_cflags}" = "\"'" ; then
90				cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
91				continue
92			fi
93			;;
94		esac
95		case "$CPPFLAGS" in
96		(*$cf_add_cflags)
97			;;
98		(*)
99			case $cf_add_cflags in
100			(-D*)
101				cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
102				CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
103				;;
104			esac
105			cf_new_cppflags="$cf_new_cppflags $cf_add_cflags"
106			;;
107		esac
108		;;
109	(*)
110		cf_new_cflags="$cf_new_cflags $cf_add_cflags"
111		;;
112	esac
113	;;
114(yes)
115	cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
116
117	cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
118
119	test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
120		&& test -z "${cf_tst_cflags}" \
121		&& cf_fix_cppflags=no
122	;;
123esac
124done
125
126if test -n "$cf_new_cflags" ; then
127	ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
128	CFLAGS="$CFLAGS $cf_new_cflags"
129fi
130
131if test -n "$cf_new_cppflags" ; then
132	ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
133	CPPFLAGS="$CPPFLAGS $cf_new_cppflags"
134fi
135
136if test -n "$cf_new_extra_cppflags" ; then
137	ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
138	EXTRA_CPPFLAGS="$cf_new_extra_cppflags $EXTRA_CPPFLAGS"
139fi
140
141AC_SUBST(EXTRA_CPPFLAGS)
142
143])dnl
144dnl ---------------------------------------------------------------------------
145dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
146dnl --------------
147dnl Allow user to disable a normally-on option.
148AC_DEFUN([CF_ARG_DISABLE],
149[CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
150dnl ---------------------------------------------------------------------------
151dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
152dnl -------------
153dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
154dnl values.
155dnl
156dnl Parameters:
157dnl $1 = option name
158dnl $2 = help-string
159dnl $3 = action to perform if option is not default
160dnl $4 = action if perform if option is default
161dnl $5 = default option value (either 'yes' or 'no')
162AC_DEFUN([CF_ARG_OPTION],
163[AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
164	if test "$enableval" != "$5" ; then
165ifelse([$3],,[    :]dnl
166,[    $3]) ifelse([$4],,,[
167	else
168		$4])
169	fi],[enableval=$5 ifelse([$4],,,[
170	$4
171])dnl
172])])dnl
173dnl ---------------------------------------------------------------------------
174dnl CF_CC_ENV_FLAGS version: 2 updated: 2015/04/12 15:39:00
175dnl ---------------
176dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
177dnl into CC.  This will not help with broken scripts that wrap the compiler with
178dnl options, but eliminates a more common category of user confusion.
179AC_DEFUN([CF_CC_ENV_FLAGS],
180[
181# This should have been defined by AC_PROG_CC
182: ${CC:=cc}
183
184AC_MSG_CHECKING(\$CC variable)
185case "$CC" in
186(*[[\ \	]]-[[IUD]]*)
187	AC_MSG_RESULT(broken)
188	AC_MSG_WARN(your environment misuses the CC variable to hold CFLAGS/CPPFLAGS options)
189	# humor him...
190	cf_flags=`echo "$CC" | sed -e 's/^[[^ 	]]*[[ 	]]//'`
191	CC=`echo "$CC" | sed -e 's/[[ 	]].*//'`
192	CF_ADD_CFLAGS($cf_flags)
193	;;
194(*)
195	AC_MSG_RESULT(ok)
196	;;
197esac
198])dnl
199dnl ---------------------------------------------------------------------------
200dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
201dnl --------------
202dnl Check if we're accidentally using a cache from a different machine.
203dnl Derive the system name, as a check for reusing the autoconf cache.
204dnl
205dnl If we've packaged config.guess and config.sub, run that (since it does a
206dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
207dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
208dnl which is useful in cross-compiles.
209dnl
210dnl Note: we would use $ac_config_sub, but that is one of the places where
211dnl autoconf 2.5x broke compatibility with autoconf 2.13
212AC_DEFUN([CF_CHECK_CACHE],
213[
214if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
215	ifelse([$1],,[AC_CANONICAL_HOST],[$1])
216	system_name="$host_os"
217else
218	system_name="`(uname -s -r) 2>/dev/null`"
219	if test -z "$system_name" ; then
220		system_name="`(hostname) 2>/dev/null`"
221	fi
222fi
223test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
224AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
225
226test -z "$system_name" && system_name="$cf_cv_system_name"
227test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
228
229if test ".$system_name" != ".$cf_cv_system_name" ; then
230	AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
231	AC_MSG_ERROR("Please remove config.cache and try again.")
232fi
233])dnl
234dnl ---------------------------------------------------------------------------
235dnl CF_CLANG_COMPILER version: 2 updated: 2013/11/19 19:23:35
236dnl -----------------
237dnl Check if the given compiler is really clang.  clang's C driver defines
238dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
239dnl not ignore some gcc options.
240dnl
241dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
242dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
243dnl the wrappers for gcc and g++ warnings.
244dnl
245dnl $1 = GCC (default) or GXX
246dnl $2 = CLANG_COMPILER (default)
247dnl $3 = CFLAGS (default) or CXXFLAGS
248AC_DEFUN([CF_CLANG_COMPILER],[
249ifelse([$2],,CLANG_COMPILER,[$2])=no
250
251if test "$ifelse([$1],,[$1],GCC)" = yes ; then
252	AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
253	cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
254	ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
255	AC_TRY_COMPILE([],[
256#ifdef __clang__
257#else
258make an error
259#endif
260],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
261cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
262],[])
263	ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
264	AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
265fi
266])
267dnl ---------------------------------------------------------------------------
268dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
269dnl ---------------
270dnl You can always use "make -n" to see the actual options, but it's hard to
271dnl pick out/analyze warning messages when the compile-line is long.
272dnl
273dnl Sets:
274dnl	ECHO_LT - symbol to control if libtool is verbose
275dnl	ECHO_LD - symbol to prefix "cc -o" lines
276dnl	RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
277dnl	SHOW_CC - symbol to put before explicit "cc -c" lines
278dnl	ECHO_CC - symbol to put before any "cc" line
279dnl
280AC_DEFUN([CF_DISABLE_ECHO],[
281AC_MSG_CHECKING(if you want to see long compiling messages)
282CF_ARG_DISABLE(echo,
283	[  --disable-echo          do not display "compiling" commands],
284	[
285	ECHO_LT='--silent'
286	ECHO_LD='@echo linking [$]@;'
287	RULE_CC='@echo compiling [$]<'
288	SHOW_CC='@echo compiling [$]@'
289	ECHO_CC='@'
290],[
291	ECHO_LT=''
292	ECHO_LD=''
293	RULE_CC=''
294	SHOW_CC=''
295	ECHO_CC=''
296])
297AC_MSG_RESULT($enableval)
298AC_SUBST(ECHO_LT)
299AC_SUBST(ECHO_LD)
300AC_SUBST(RULE_CC)
301AC_SUBST(SHOW_CC)
302AC_SUBST(ECHO_CC)
303])dnl
304dnl ---------------------------------------------------------------------------
305dnl CF_DISABLE_LEAKS version: 7 updated: 2012/10/02 20:55:03
306dnl ----------------
307dnl Combine no-leak checks with the libraries or tools that are used for the
308dnl checks.
309AC_DEFUN([CF_DISABLE_LEAKS],[
310
311AC_REQUIRE([CF_WITH_DMALLOC])
312AC_REQUIRE([CF_WITH_DBMALLOC])
313AC_REQUIRE([CF_WITH_VALGRIND])
314
315AC_MSG_CHECKING(if you want to perform memory-leak testing)
316AC_ARG_ENABLE(leaks,
317	[  --disable-leaks         test: free permanent memory, analyze leaks],
318	[if test "x$enableval" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi],
319	: ${with_no_leaks:=no})
320AC_MSG_RESULT($with_no_leaks)
321
322if test "$with_no_leaks" = yes ; then
323	AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
324	AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
325fi
326])dnl
327dnl ---------------------------------------------------------------------------
328dnl CF_GCC_ATTRIBUTES version: 17 updated: 2015/04/12 15:39:00
329dnl -----------------
330dnl Test for availability of useful gcc __attribute__ directives to quiet
331dnl compiler warnings.  Though useful, not all are supported -- and contrary
332dnl to documentation, unrecognized directives cause older compilers to barf.
333AC_DEFUN([CF_GCC_ATTRIBUTES],
334[
335if test "$GCC" = yes
336then
337cat > conftest.i <<EOF
338#ifndef GCC_PRINTF
339#define GCC_PRINTF 0
340#endif
341#ifndef GCC_SCANF
342#define GCC_SCANF 0
343#endif
344#ifndef GCC_NORETURN
345#define GCC_NORETURN /* nothing */
346#endif
347#ifndef GCC_UNUSED
348#define GCC_UNUSED /* nothing */
349#endif
350EOF
351if test "$GCC" = yes
352then
353	AC_CHECKING([for $CC __attribute__ directives])
354cat > conftest.$ac_ext <<EOF
355#line __oline__ "${as_me:-configure}"
356#include "confdefs.h"
357#include "conftest.h"
358#include "conftest.i"
359#if	GCC_PRINTF
360#define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
361#else
362#define GCC_PRINTFLIKE(fmt,var) /*nothing*/
363#endif
364#if	GCC_SCANF
365#define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
366#else
367#define GCC_SCANFLIKE(fmt,var)  /*nothing*/
368#endif
369extern void wow(char *,...) GCC_SCANFLIKE(1,2);
370extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
371extern void foo(void) GCC_NORETURN;
372int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
373EOF
374	cf_printf_attribute=no
375	cf_scanf_attribute=no
376	for cf_attribute in scanf printf unused noreturn
377	do
378		CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
379		cf_directive="__attribute__(($cf_attribute))"
380		echo "checking for $CC $cf_directive" 1>&AC_FD_CC
381
382		case $cf_attribute in
383		(printf)
384			cf_printf_attribute=yes
385			cat >conftest.h <<EOF
386#define GCC_$cf_ATTRIBUTE 1
387EOF
388			;;
389		(scanf)
390			cf_scanf_attribute=yes
391			cat >conftest.h <<EOF
392#define GCC_$cf_ATTRIBUTE 1
393EOF
394			;;
395		(*)
396			cat >conftest.h <<EOF
397#define GCC_$cf_ATTRIBUTE $cf_directive
398EOF
399			;;
400		esac
401
402		if AC_TRY_EVAL(ac_compile); then
403			test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
404			cat conftest.h >>confdefs.h
405			case $cf_attribute in
406			(noreturn)
407				AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
408				;;
409			(printf)
410				cf_value='/* nothing */'
411				if test "$cf_printf_attribute" != no ; then
412					cf_value='__attribute__((format(printf,fmt,var)))'
413					AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
414				fi
415				AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
416				;;
417			(scanf)
418				cf_value='/* nothing */'
419				if test "$cf_scanf_attribute" != no ; then
420					cf_value='__attribute__((format(scanf,fmt,var)))'
421					AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
422				fi
423				AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
424				;;
425			(unused)
426				AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
427				;;
428			esac
429		fi
430	done
431else
432	fgrep define conftest.i >>confdefs.h
433fi
434rm -rf conftest*
435fi
436])dnl
437dnl ---------------------------------------------------------------------------
438dnl CF_GCC_VERSION version: 7 updated: 2012/10/18 06:46:33
439dnl --------------
440dnl Find version of gcc
441AC_DEFUN([CF_GCC_VERSION],[
442AC_REQUIRE([AC_PROG_CC])
443GCC_VERSION=none
444if test "$GCC" = yes ; then
445	AC_MSG_CHECKING(version of $CC)
446	GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
447	test -z "$GCC_VERSION" && GCC_VERSION=unknown
448	AC_MSG_RESULT($GCC_VERSION)
449fi
450])dnl
451dnl ---------------------------------------------------------------------------
452dnl CF_GCC_WARNINGS version: 32 updated: 2015/04/12 15:39:00
453dnl ---------------
454dnl Check if the compiler supports useful warning options.  There's a few that
455dnl we don't use, simply because they're too noisy:
456dnl
457dnl	-Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
458dnl	-Wredundant-decls (system headers make this too noisy)
459dnl	-Wtraditional (combines too many unrelated messages, only a few useful)
460dnl	-Wwrite-strings (too noisy, but should review occasionally).  This
461dnl		is enabled for ncurses using "--enable-const".
462dnl	-pedantic
463dnl
464dnl Parameter:
465dnl	$1 is an optional list of gcc warning flags that a particular
466dnl		application might want to use, e.g., "no-unused" for
467dnl		-Wno-unused
468dnl Special:
469dnl	If $with_ext_const is "yes", add a check for -Wwrite-strings
470dnl
471AC_DEFUN([CF_GCC_WARNINGS],
472[
473AC_REQUIRE([CF_GCC_VERSION])
474CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
475CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
476
477cat > conftest.$ac_ext <<EOF
478#line __oline__ "${as_me:-configure}"
479int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
480EOF
481
482if test "$INTEL_COMPILER" = yes
483then
484# The "-wdXXX" options suppress warnings:
485# remark #1419: external declaration in primary source file
486# remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
487# remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
488# remark #193: zero used for undefined preprocessing identifier
489# remark #593: variable "curs_sb_left_arrow" was set but never used
490# remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
491# remark #869: parameter "tw" was never referenced
492# remark #981: operands are evaluated in unspecified order
493# warning #279: controlling expression is constant
494
495	AC_CHECKING([for $CC warning options])
496	cf_save_CFLAGS="$CFLAGS"
497	EXTRA_CFLAGS="-Wall"
498	for cf_opt in \
499		wd1419 \
500		wd1683 \
501		wd1684 \
502		wd193 \
503		wd593 \
504		wd279 \
505		wd810 \
506		wd869 \
507		wd981
508	do
509		CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
510		if AC_TRY_EVAL(ac_compile); then
511			test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
512			EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
513		fi
514	done
515	CFLAGS="$cf_save_CFLAGS"
516
517elif test "$GCC" = yes
518then
519	AC_CHECKING([for $CC warning options])
520	cf_save_CFLAGS="$CFLAGS"
521	EXTRA_CFLAGS=
522	cf_warn_CONST=""
523	test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
524	cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
525	test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
526	for cf_opt in W Wall \
527		Wbad-function-cast \
528		Wcast-align \
529		Wcast-qual \
530		Wdeclaration-after-statement \
531		Wextra \
532		Winline \
533		Wmissing-declarations \
534		Wmissing-prototypes \
535		Wnested-externs \
536		Wpointer-arith \
537		Wshadow \
538		Wstrict-prototypes \
539		Wundef $cf_gcc_warnings $cf_warn_CONST $1
540	do
541		CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
542		if AC_TRY_EVAL(ac_compile); then
543			test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
544			case $cf_opt in
545			(Wcast-qual)
546				CPPFLAGS="$CPPFLAGS -DXTSTRINGDEFINES"
547				;;
548			(Winline)
549				case $GCC_VERSION in
550				([[34]].*)
551					CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
552					continue;;
553				esac
554				;;
555			(Wpointer-arith)
556				case $GCC_VERSION in
557				([[12]].*)
558					CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
559					continue;;
560				esac
561				;;
562			esac
563			EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
564		fi
565	done
566	CFLAGS="$cf_save_CFLAGS"
567fi
568rm -rf conftest*
569
570AC_SUBST(EXTRA_CFLAGS)
571])dnl
572dnl ---------------------------------------------------------------------------
573dnl CF_GNU_SOURCE version: 6 updated: 2005/07/09 13:23:07
574dnl -------------
575dnl Check if we must define _GNU_SOURCE to get a reasonable value for
576dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
577dnl (or misfeature) of glibc2, which breaks portability of many applications,
578dnl since it is interwoven with GNU extensions.
579dnl
580dnl Well, yes we could work around it...
581AC_DEFUN([CF_GNU_SOURCE],
582[
583AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
584AC_TRY_COMPILE([#include <sys/types.h>],[
585#ifndef _XOPEN_SOURCE
586make an error
587#endif],
588	[cf_cv_gnu_source=no],
589	[cf_save="$CPPFLAGS"
590	 CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
591	 AC_TRY_COMPILE([#include <sys/types.h>],[
592#ifdef _XOPEN_SOURCE
593make an error
594#endif],
595	[cf_cv_gnu_source=no],
596	[cf_cv_gnu_source=yes])
597	CPPFLAGS="$cf_save"
598	])
599])
600test "$cf_cv_gnu_source" = yes && CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
601])dnl
602dnl ---------------------------------------------------------------------------
603dnl CF_INTEL_COMPILER version: 7 updated: 2015/04/12 15:39:00
604dnl -----------------
605dnl Check if the given compiler is really the Intel compiler for Linux.  It
606dnl tries to imitate gcc, but does not return an error when it finds a mismatch
607dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
608dnl
609dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
610dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
611dnl the wrappers for gcc and g++ warnings.
612dnl
613dnl $1 = GCC (default) or GXX
614dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
615dnl $3 = CFLAGS (default) or CXXFLAGS
616AC_DEFUN([CF_INTEL_COMPILER],[
617AC_REQUIRE([AC_CANONICAL_HOST])
618ifelse([$2],,INTEL_COMPILER,[$2])=no
619
620if test "$ifelse([$1],,[$1],GCC)" = yes ; then
621	case $host_os in
622	(linux*|gnu*)
623		AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
624		cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
625		ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
626		AC_TRY_COMPILE([],[
627#ifdef __INTEL_COMPILER
628#else
629make an error
630#endif
631],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
632cf_save_CFLAGS="$cf_save_CFLAGS -we147"
633],[])
634		ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
635		AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
636		;;
637	esac
638fi
639])dnl
640dnl ---------------------------------------------------------------------------
641dnl CF_MAKE_DOCS version: 4 updated: 2015/07/04 21:43:03
642dnl ------------
643dnl $1 = name(s) to generate rules for
644dnl $2 = suffix of corresponding manpages used as input.
645dnl
646dnl This works best if called at the end of configure.in, following CF_WITH_MAN2HTML
647define([CF_MAKE_DOCS],[
648test -z "$cf_make_docs" && cf_make_docs=0
649
650cf_output=makefile
651test -f "$cf_output" || cf_output=Makefile
652
653if test "$cf_make_docs" = 0
654then
655cat >>$cf_output <<CF_EOF
656################################################################################
657## generated by $0
658.SUFFIXES : .html .$2 .man .ps .pdf .txt
659
660${NROFF_NOTE}.$2.txt :
661${NROFF_NOTE}	[\$](SHELL) -c "tbl [\$]*.$2 | nroff -man | col -bx" >[\$]@
662
663${GROFF_NOTE}.ps.pdf :
664${GROFF_NOTE}	ps2pdf [\$]*.ps
665${GROFF_NOTE}
666${GROFF_NOTE}.$2.ps :
667${GROFF_NOTE}	[\$](SHELL) -c "tbl [\$]*.$2 | groff -man" >[\$]@
668${GROFF_NOTE}
669${GROFF_NOTE}.$2.txt :
670${GROFF_NOTE}	GROFF_NO_SGR=stupid [\$](SHELL) -c "tbl [\$]*.$2 | nroff -Tascii -man | col -bx" >[\$]@
671
672${MAN2HTML_NOTE}.$2.html :
673${MAN2HTML_NOTE}	./${MAN2HTML_TEMP} [\$]* $2 man >[\$]@
674
675CF_EOF
676	cf_make_docs=1
677fi
678
679for cf_name in $1
680do
681cat >>$cf_output <<CF_EOF
682################################################################################
683${NROFF_NOTE}docs docs-$cf_name :: $cf_name.txt
684${MAN2HTML_NOTE}docs docs-$cf_name :: $cf_name.html
685${GROFF_NOTE}docs docs-$cf_name :: $cf_name.pdf
686${GROFF_NOTE}docs docs-$cf_name :: $cf_name.ps
687${GROFF_NOTE}docs docs-$cf_name :: $cf_name.txt
688
689clean \\
690docs-clean ::
691${NROFF_NOTE}	rm -f $cf_name.txt
692${MAN2HTML_NOTE}	rm -f $cf_name.html
693${GROFF_NOTE}	rm -f $cf_name.pdf
694${GROFF_NOTE}	rm -f $cf_name.ps
695${GROFF_NOTE}	rm -f $cf_name.txt
696
697${NROFF_NOTE}$cf_name.txt  : $cf_name.$2
698${MAN2HTML_NOTE}$cf_name.html : $cf_name.$2
699${GROFF_NOTE}$cf_name.pdf  : $cf_name.ps
700${GROFF_NOTE}$cf_name.ps   : $cf_name.$2
701${GROFF_NOTE}$cf_name.txt  : $cf_name.$2
702CF_EOF
703done
704])dnl
705dnl ---------------------------------------------------------------------------
706dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
707dnl ------------
708dnl Generate tags/TAGS targets for makefiles.  Do not generate TAGS if we have
709dnl a monocase filesystem.
710AC_DEFUN([CF_MAKE_TAGS],[
711AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
712
713AC_CHECK_PROGS(CTAGS, exctags ctags)
714AC_CHECK_PROGS(ETAGS, exetags etags)
715
716AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
717
718if test "$cf_cv_mixedcase" = yes ; then
719	AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
720else
721	MAKE_UPPER_TAGS=no
722fi
723
724if test "$MAKE_UPPER_TAGS" = yes ; then
725	MAKE_UPPER_TAGS=
726else
727	MAKE_UPPER_TAGS="#"
728fi
729
730if test "$MAKE_LOWER_TAGS" = yes ; then
731	MAKE_LOWER_TAGS=
732else
733	MAKE_LOWER_TAGS="#"
734fi
735
736AC_SUBST(CTAGS)
737AC_SUBST(ETAGS)
738
739AC_SUBST(MAKE_UPPER_TAGS)
740AC_SUBST(MAKE_LOWER_TAGS)
741])dnl
742dnl ---------------------------------------------------------------------------
743dnl CF_MIXEDCASE_FILENAMES version: 7 updated: 2015/04/12 15:39:00
744dnl ----------------------
745dnl Check if the file-system supports mixed-case filenames.  If we're able to
746dnl create a lowercase name and see it as uppercase, it doesn't support that.
747AC_DEFUN([CF_MIXEDCASE_FILENAMES],
748[
749AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
750if test "$cross_compiling" = yes ; then
751	case $target_alias in
752	(*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*)
753		cf_cv_mixedcase=no
754		;;
755	(*)
756		cf_cv_mixedcase=yes
757		;;
758	esac
759else
760	rm -f conftest CONFTEST
761	echo test >conftest
762	if test -f CONFTEST ; then
763		cf_cv_mixedcase=no
764	else
765		cf_cv_mixedcase=yes
766	fi
767	rm -f conftest CONFTEST
768fi
769])
770test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
771])dnl
772dnl ---------------------------------------------------------------------------
773dnl CF_MKSTEMP version: 9 updated: 2012/10/03 04:34:49
774dnl ----------
775dnl Check for a working mkstemp.  This creates two files, checks that they are
776dnl successfully created and distinct (AmigaOS apparently fails on the last).
777AC_DEFUN([CF_MKSTEMP],[
778AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
779rm -rf conftest*
780AC_TRY_RUN([
781#include <sys/types.h>
782#include <stdlib.h>
783#include <stdio.h>
784#include <string.h>
785#include <sys/stat.h>
786int main()
787{
788	char *tmpl = "conftestXXXXXX";
789	char name[2][80];
790	int n;
791	int result = 0;
792	int fd;
793	struct stat sb;
794
795	umask(077);
796	for (n = 0; n < 2; ++n) {
797		strcpy(name[n], tmpl);
798		if ((fd = mkstemp(name[n])) >= 0) {
799			if (!strcmp(name[n], tmpl)
800			 || stat(name[n], &sb) != 0
801			 || (sb.st_mode & S_IFMT) != S_IFREG
802			 || (sb.st_mode & 077) != 0) {
803				result = 1;
804			}
805			close(fd);
806		}
807	}
808	if (result == 0
809	 && !strcmp(name[0], name[1]))
810		result = 1;
811	${cf_cv_main_return:-return}(result);
812}
813],[cf_cv_func_mkstemp=yes
814],[cf_cv_func_mkstemp=no
815],[cf_cv_func_mkstemp=maybe])
816])
817if test "x$cf_cv_func_mkstemp" = xmaybe ; then
818	AC_CHECK_FUNC(mkstemp)
819fi
820if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
821	AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
822fi
823])dnl
824dnl ---------------------------------------------------------------------------
825dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
826dnl ----------
827dnl Write a debug message to config.log, along with the line number in the
828dnl configure script.
829AC_DEFUN([CF_MSG_LOG],[
830echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
831])dnl
832dnl ---------------------------------------------------------------------------
833dnl CF_NO_LEAKS_OPTION version: 6 updated: 2015/04/12 15:39:00
834dnl ------------------
835dnl see CF_WITH_NO_LEAKS
836AC_DEFUN([CF_NO_LEAKS_OPTION],[
837AC_MSG_CHECKING(if you want to use $1 for testing)
838AC_ARG_WITH($1,
839	[$2],
840	[AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
841	 $4
842])
843	: ${with_cflags:=-g}
844	: ${with_no_leaks:=yes}
845	 with_$1=yes],
846	[with_$1=])
847AC_MSG_RESULT(${with_$1:-no})
848
849case .$with_cflags in
850(.*-g*)
851	case .$CFLAGS in
852	(.*-g*)
853		;;
854	(*)
855		CF_ADD_CFLAGS([-g])
856		;;
857	esac
858	;;
859esac
860])dnl
861dnl ---------------------------------------------------------------------------
862dnl CF_PATH_SYNTAX version: 16 updated: 2015/04/18 08:56:57
863dnl --------------
864dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
865dnl begins with one of the prefix/exec_prefix variables, and then again if the
866dnl result begins with 'NONE'.  This is necessary to work around autoconf's
867dnl delayed evaluation of those symbols.
868AC_DEFUN([CF_PATH_SYNTAX],[
869if test "x$prefix" != xNONE; then
870	cf_path_syntax="$prefix"
871else
872	cf_path_syntax="$ac_default_prefix"
873fi
874
875case ".[$]$1" in
876(.\[$]\(*\)*|.\'*\'*)
877	;;
878(..|./*|.\\*)
879	;;
880(.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
881	;;
882(.\[$]{*prefix}*|.\[$]{*dir}*)
883	eval $1="[$]$1"
884	case ".[$]$1" in
885	(.NONE/*)
886		$1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
887		;;
888	esac
889	;;
890(.no|.NONE/*)
891	$1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
892	;;
893(*)
894	ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
895	;;
896esac
897])dnl
898dnl ---------------------------------------------------------------------------
899dnl CF_POSIX_C_SOURCE version: 9 updated: 2015/04/12 15:39:00
900dnl -----------------
901dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
902dnl
903dnl	POSIX.1-1990				_POSIX_SOURCE
904dnl	POSIX.1-1990 and			_POSIX_SOURCE and
905dnl		POSIX.2-1992 C-Language			_POSIX_C_SOURCE=2
906dnl		Bindings Option
907dnl	POSIX.1b-1993				_POSIX_C_SOURCE=199309L
908dnl	POSIX.1c-1996				_POSIX_C_SOURCE=199506L
909dnl	X/Open 2000				_POSIX_C_SOURCE=200112L
910dnl
911dnl Parameters:
912dnl	$1 is the nominal value for _POSIX_C_SOURCE
913AC_DEFUN([CF_POSIX_C_SOURCE],
914[
915cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
916
917cf_save_CFLAGS="$CFLAGS"
918cf_save_CPPFLAGS="$CPPFLAGS"
919
920CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
921CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
922
923AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
924	CF_MSG_LOG(if the symbol is already defined go no further)
925	AC_TRY_COMPILE([#include <sys/types.h>],[
926#ifndef _POSIX_C_SOURCE
927make an error
928#endif],
929	[cf_cv_posix_c_source=no],
930	[cf_want_posix_source=no
931	 case .$cf_POSIX_C_SOURCE in
932	 (.[[12]]??*)
933		cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
934		;;
935	 (.2)
936		cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
937		cf_want_posix_source=yes
938		;;
939	 (.*)
940		cf_want_posix_source=yes
941		;;
942	 esac
943	 if test "$cf_want_posix_source" = yes ; then
944		AC_TRY_COMPILE([#include <sys/types.h>],[
945#ifdef _POSIX_SOURCE
946make an error
947#endif],[],
948		cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
949	 fi
950	 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
951	 CFLAGS="$cf_trim_CFLAGS"
952	 CPPFLAGS="$cf_trim_CPPFLAGS $cf_cv_posix_c_source"
953	 CF_MSG_LOG(if the second compile does not leave our definition intact error)
954	 AC_TRY_COMPILE([#include <sys/types.h>],[
955#ifndef _POSIX_C_SOURCE
956make an error
957#endif],,
958	 [cf_cv_posix_c_source=no])
959	 CFLAGS="$cf_save_CFLAGS"
960	 CPPFLAGS="$cf_save_CPPFLAGS"
961	])
962])
963
964if test "$cf_cv_posix_c_source" != no ; then
965	CFLAGS="$cf_trim_CFLAGS"
966	CPPFLAGS="$cf_trim_CPPFLAGS"
967	CF_ADD_CFLAGS($cf_cv_posix_c_source)
968fi
969
970])dnl
971dnl ---------------------------------------------------------------------------
972dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
973dnl -----------
974dnl Check for awk, ensure that the check found something.
975AC_DEFUN([CF_PROG_AWK],
976[
977AC_PROG_AWK
978test -z "$AWK" && AC_MSG_ERROR(No awk program found)
979])dnl
980dnl ---------------------------------------------------------------------------
981dnl CF_PROG_CC version: 4 updated: 2014/07/12 18:57:58
982dnl ----------
983dnl standard check for CC, plus followup sanity checks
984dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
985AC_DEFUN([CF_PROG_CC],[
986ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
987CF_GCC_VERSION
988CF_ACVERSION_CHECK(2.52,
989	[AC_PROG_CC_STDC],
990	[CF_ANSI_CC_REQD])
991CF_CC_ENV_FLAGS
992])dnl
993dnl ---------------------------------------------------------------------------
994dnl CF_PROG_GROFF version: 2 updated: 2015/07/04 11:16:27
995dnl -------------
996dnl Check if groff is available, for cases (such as html output) where nroff
997dnl is not enough.
998AC_DEFUN([CF_PROG_GROFF],[
999AC_PATH_PROG(GROFF_PATH,groff,no)
1000AC_PATH_PROG(NROFF_PATH,nroff,no)
1001if test "x$GROFF_PATH" = xno
1002then
1003	NROFF_NOTE=
1004	GROFF_NOTE="#"
1005else
1006	NROFF_NOTE="#"
1007	GROFF_NOTE=
1008fi
1009AC_SUBST(GROFF_NOTE)
1010AC_SUBST(NROFF_NOTE)
1011])dnl
1012dnl ---------------------------------------------------------------------------
1013dnl CF_PROG_LINT version: 2 updated: 2009/08/12 04:43:14
1014dnl ------------
1015AC_DEFUN([CF_PROG_LINT],
1016[
1017AC_CHECK_PROGS(LINT, tdlint lint alint splint lclint)
1018AC_SUBST(LINT_OPTS)
1019])dnl
1020dnl ---------------------------------------------------------------------------
1021dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
1022dnl ----------------
1023dnl Remove all -U and -D options that refer to the given symbol from a list
1024dnl of C compiler options.  This works around the problem that not all
1025dnl compilers process -U and -D options from left-to-right, so a -U option
1026dnl cannot be used to cancel the effect of a preceding -D option.
1027dnl
1028dnl $1 = target (which could be the same as the source variable)
1029dnl $2 = source (including '$')
1030dnl $3 = symbol to remove
1031define([CF_REMOVE_DEFINE],
1032[
1033$1=`echo "$2" | \
1034	sed	-e 's/-[[UD]]'"$3"'\(=[[^ 	]]*\)\?[[ 	]]/ /g' \
1035		-e 's/-[[UD]]'"$3"'\(=[[^ 	]]*\)\?[$]//g'`
1036])dnl
1037dnl ---------------------------------------------------------------------------
1038dnl CF_TRY_XOPEN_SOURCE version: 1 updated: 2011/10/30 17:09:50
1039dnl -------------------
1040dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
1041dnl can define it successfully.
1042AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
1043AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
1044	AC_TRY_COMPILE([
1045#include <stdlib.h>
1046#include <string.h>
1047#include <sys/types.h>
1048],[
1049#ifndef _XOPEN_SOURCE
1050make an error
1051#endif],
1052	[cf_cv_xopen_source=no],
1053	[cf_save="$CPPFLAGS"
1054	 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
1055	 AC_TRY_COMPILE([
1056#include <stdlib.h>
1057#include <string.h>
1058#include <sys/types.h>
1059],[
1060#ifdef _XOPEN_SOURCE
1061make an error
1062#endif],
1063	[cf_cv_xopen_source=no],
1064	[cf_cv_xopen_source=$cf_XOPEN_SOURCE])
1065	CPPFLAGS="$cf_save"
1066	])
1067])
1068
1069if test "$cf_cv_xopen_source" != no ; then
1070	CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
1071	CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
1072	cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
1073	CF_ADD_CFLAGS($cf_temp_xopen_source)
1074fi
1075])
1076dnl ---------------------------------------------------------------------------
1077dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
1078dnl --------
1079dnl Make an uppercase version of a variable
1080dnl $1=uppercase($2)
1081AC_DEFUN([CF_UPPER],
1082[
1083$1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
1084])dnl
1085dnl ---------------------------------------------------------------------------
1086dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
1087dnl ----------
1088dnl Use AC_VERBOSE w/o the warnings
1089AC_DEFUN([CF_VERBOSE],
1090[test -n "$verbose" && echo "	$1" 1>&AC_FD_MSG
1091CF_MSG_LOG([$1])
1092])dnl
1093dnl ---------------------------------------------------------------------------
1094dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
1095dnl ----------------
1096dnl Configure-option for dbmalloc.  The optional parameter is used to override
1097dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
1098AC_DEFUN([CF_WITH_DBMALLOC],[
1099CF_NO_LEAKS_OPTION(dbmalloc,
1100	[  --with-dbmalloc         test: use Conor Cahill's dbmalloc library],
1101	[USE_DBMALLOC])
1102
1103if test "$with_dbmalloc" = yes ; then
1104	AC_CHECK_HEADER(dbmalloc.h,
1105		[AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
1106fi
1107])dnl
1108dnl ---------------------------------------------------------------------------
1109dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
1110dnl ---------------
1111dnl Configure-option for dmalloc.  The optional parameter is used to override
1112dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
1113AC_DEFUN([CF_WITH_DMALLOC],[
1114CF_NO_LEAKS_OPTION(dmalloc,
1115	[  --with-dmalloc          test: use Gray Watson's dmalloc library],
1116	[USE_DMALLOC])
1117
1118if test "$with_dmalloc" = yes ; then
1119	AC_CHECK_HEADER(dmalloc.h,
1120		[AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
1121fi
1122])dnl
1123dnl ---------------------------------------------------------------------------
1124dnl CF_WITH_MAN2HTML version: 5 updated: 2015/08/20 04:51:36
1125dnl ----------------
1126dnl Check for man2html and groff.  Optionally prefer man2html over groff.
1127dnl Generate a shell script which hides the differences between the two.
1128dnl
1129dnl We name that "man2html.tmp".
1130dnl
1131dnl The shell script can be removed later, e.g., using "make distclean".
1132AC_DEFUN([CF_WITH_MAN2HTML],[
1133AC_REQUIRE([CF_PROG_GROFF])
1134
1135AC_MSG_CHECKING(for program to convert manpage to html)
1136AC_ARG_WITH(man2html,
1137	[  --with-man2html=XXX     use XXX rather than groff],
1138	[cf_man2html=$withval],
1139	[cf_man2html=$GROFF_PATH])
1140
1141cf_with_groff=no
1142
1143case $cf_man2html in
1144(yes)
1145	AC_MSG_RESULT(man2html)
1146	AC_PATH_PROG(cf_man2html,man2html,no)
1147	;;
1148(no|groff|*/groff*)
1149	cf_with_groff=yes
1150	cf_man2html=$GROFF_PATH
1151	AC_MSG_RESULT($cf_man2html)
1152	;;
1153(*)
1154	AC_MSG_RESULT($cf_man2html)
1155	;;
1156esac
1157
1158MAN2HTML_TEMP="man2html.tmp"
1159	cat >$MAN2HTML_TEMP <<CF_EOF
1160#!$SHELL
1161# Temporary script generated by CF_WITH_MAN2HTML
1162# Convert inputs to html, sending result to standard output.
1163#
1164# Parameters:
1165# \${1} = rootname of file to convert
1166# \${2} = suffix of file to convert, e.g., "1"
1167# \${3} = macros to use, e.g., "man"
1168#
1169ROOT=\[$]1
1170TYPE=\[$]2
1171MACS=\[$]3
1172
1173unset LANG
1174unset LC_ALL
1175unset LC_CTYPE
1176unset LANGUAGE
1177GROFF_NO_SGR=stupid
1178export GROFF_NO_SGR
1179
1180CF_EOF
1181
1182if test "x$cf_with_groff" = xyes
1183then
1184	MAN2HTML_NOTE="$GROFF_NOTE"
1185	MAN2HTML_PATH="$GROFF_PATH"
1186	cat >>$MAN2HTML_TEMP <<CF_EOF
1187$SHELL -c "tbl \${ROOT}.\${TYPE} | $GROFF_PATH -P -o0 -I\${ROOT}_ -Thtml -\${MACS}"
1188CF_EOF
1189else
1190	MAN2HTML_NOTE=""
1191	CF_PATH_SYNTAX(cf_man2html)
1192	MAN2HTML_PATH="$cf_man2html"
1193	AC_MSG_CHECKING(for $cf_man2html top/bottom margins)
1194
1195	# for this example, expect 3 lines of content, the remainder is head/foot
1196	cat >conftest.in <<CF_EOF
1197.TH HEAD1 HEAD2 HEAD3 HEAD4 HEAD5
1198.SH SECTION
1199MARKER
1200CF_EOF
1201
1202	LC_ALL=C LC_CTYPE=C LANG=C LANGUAGE=C nroff -man conftest.in >conftest.out
1203
1204	cf_man2html_1st=`fgrep -n MARKER conftest.out |sed -e 's/^[[^0-9]]*://' -e 's/:.*//'`
1205	cf_man2html_top=`expr $cf_man2html_1st - 2`
1206	cf_man2html_bot=`wc -l conftest.out |sed -e 's/[[^0-9]]//g'`
1207	cf_man2html_bot=`expr $cf_man2html_bot - 2 - $cf_man2html_top`
1208	cf_man2html_top_bot="-topm=$cf_man2html_top -botm=$cf_man2html_bot"
1209
1210	AC_MSG_RESULT($cf_man2html_top_bot)
1211
1212	AC_MSG_CHECKING(for pagesize to use)
1213	for cf_block in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
1214	do
1215	cat >>conftest.in <<CF_EOF
1216.nf
12170
12181
12192
12203
12214
12225
12236
12247
12258
12269
1227CF_EOF
1228	done
1229
1230	LC_ALL=C LC_CTYPE=C LANG=C LANGUAGE=C nroff -man conftest.in >conftest.out
1231	cf_man2html_page=`fgrep -n HEAD1 conftest.out |tail -n 1 |sed -e 's/^[[^0-9]]*://' -e 's/:.*//'`
1232	test -z "$cf_man2html_page" && cf_man2html_page=99999
1233	test "$cf_man2html_page" -gt 100 && cf_man2html_page=99999
1234
1235	rm -rf conftest*
1236	AC_MSG_RESULT($cf_man2html_page)
1237
1238	cat >>$MAN2HTML_TEMP <<CF_EOF
1239: \${MAN2HTML_PATH=$MAN2HTML_PATH}
1240MAN2HTML_OPTS="\$MAN2HTML_OPTS -index -title="\$ROOT\(\$TYPE\)" -compress -pgsize $cf_man2html_page"
1241case \${TYPE} in
1242(ms)
1243	tbl \${ROOT}.\${TYPE} | nroff -\${MACS} | \$MAN2HTML_PATH -topm=0 -botm=0 \$MAN2HTML_OPTS
1244	;;
1245(*)
1246	tbl \${ROOT}.\${TYPE} | nroff -\${MACS} | \$MAN2HTML_PATH $cf_man2html_top_bot \$MAN2HTML_OPTS
1247	;;
1248esac
1249CF_EOF
1250fi
1251
1252chmod 700 $MAN2HTML_TEMP
1253
1254AC_SUBST(MAN2HTML_NOTE)
1255AC_SUBST(MAN2HTML_PATH)
1256AC_SUBST(MAN2HTML_TEMP)
1257])dnl
1258dnl ---------------------------------------------------------------------------
1259dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
1260dnl ----------------
1261AC_DEFUN([CF_WITH_VALGRIND],[
1262CF_NO_LEAKS_OPTION(valgrind,
1263	[  --with-valgrind         test: use valgrind],
1264	[USE_VALGRIND])
1265])dnl
1266dnl ---------------------------------------------------------------------------
1267dnl CF_WITH_WARNINGS version: 5 updated: 2004/07/23 14:40:34
1268dnl ----------------
1269dnl Combine the checks for gcc features into a configure-script option
1270dnl
1271dnl Parameters:
1272dnl	$1 - see CF_GCC_WARNINGS
1273AC_DEFUN([CF_WITH_WARNINGS],
1274[
1275if ( test "$GCC" = yes || test "$GXX" = yes )
1276then
1277AC_MSG_CHECKING(if you want to check for gcc warnings)
1278AC_ARG_WITH(warnings,
1279	[  --with-warnings         test: turn on gcc warnings],
1280	[cf_opt_with_warnings=$withval],
1281	[cf_opt_with_warnings=no])
1282AC_MSG_RESULT($cf_opt_with_warnings)
1283if test "$cf_opt_with_warnings" != no ; then
1284	CF_GCC_ATTRIBUTES
1285	CF_GCC_WARNINGS([$1])
1286fi
1287fi
1288])dnl
1289dnl ---------------------------------------------------------------------------
1290dnl CF_XOPEN_SOURCE version: 50 updated: 2015/10/17 19:03:33
1291dnl ---------------
1292dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
1293dnl or adapt to the vendor's definitions to get equivalent functionality,
1294dnl without losing the common non-POSIX features.
1295dnl
1296dnl Parameters:
1297dnl	$1 is the nominal value for _XOPEN_SOURCE
1298dnl	$2 is the nominal value for _POSIX_C_SOURCE
1299AC_DEFUN([CF_XOPEN_SOURCE],[
1300AC_REQUIRE([AC_CANONICAL_HOST])
1301
1302cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
1303cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
1304cf_xopen_source=
1305
1306case $host_os in
1307(aix[[4-7]]*)
1308	cf_xopen_source="-D_ALL_SOURCE"
1309	;;
1310(cygwin|msys)
1311	cf_XOPEN_SOURCE=600
1312	;;
1313(darwin[[0-8]].*)
1314	cf_xopen_source="-D_APPLE_C_SOURCE"
1315	;;
1316(darwin*)
1317	cf_xopen_source="-D_DARWIN_C_SOURCE"
1318	cf_XOPEN_SOURCE=
1319	;;
1320(freebsd*|dragonfly*)
1321	# 5.x headers associate
1322	#	_XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
1323	#	_XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
1324	cf_POSIX_C_SOURCE=200112L
1325	cf_XOPEN_SOURCE=600
1326	cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
1327	;;
1328(hpux11*)
1329	cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
1330	;;
1331(hpux*)
1332	cf_xopen_source="-D_HPUX_SOURCE"
1333	;;
1334(irix[[56]].*)
1335	cf_xopen_source="-D_SGI_SOURCE"
1336	cf_XOPEN_SOURCE=
1337	;;
1338(linux*|gnu*|mint*|k*bsd*-gnu)
1339	CF_GNU_SOURCE
1340	;;
1341(minix*)
1342	cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
1343	;;
1344(mirbsd*)
1345	# setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
1346	cf_XOPEN_SOURCE=
1347	CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
1348	;;
1349(netbsd*)
1350	cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
1351	;;
1352(openbsd[[4-9]]*)
1353	# setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
1354	cf_xopen_source="-D_BSD_SOURCE"
1355	cf_XOPEN_SOURCE=600
1356	;;
1357(openbsd*)
1358	# setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
1359	;;
1360(os2*)
1361	cf_XOPEN_SOURCE=
1362	;;
1363(osf[[45]]*)
1364	cf_xopen_source="-D_OSF_SOURCE"
1365	;;
1366(nto-qnx*)
1367	cf_xopen_source="-D_QNX_SOURCE"
1368	;;
1369(sco*)
1370	# setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
1371	;;
1372(solaris2.*)
1373	cf_xopen_source="-D__EXTENSIONS__"
1374	cf_cv_xopen_source=broken
1375	;;
1376(sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
1377	cf_XOPEN_SOURCE=
1378	cf_POSIX_C_SOURCE=
1379	;;
1380(*)
1381	CF_TRY_XOPEN_SOURCE
1382	CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
1383	;;
1384esac
1385
1386if test -n "$cf_xopen_source" ; then
1387	CF_ADD_CFLAGS($cf_xopen_source,true)
1388fi
1389
1390dnl In anything but the default case, we may have system-specific setting
1391dnl which is still not guaranteed to provide all of the entrypoints that
1392dnl _XOPEN_SOURCE would yield.
1393if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
1394	AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
1395	AC_TRY_COMPILE([#include <stdlib.h>],[
1396#ifndef _XOPEN_SOURCE
1397make an error
1398#endif],
1399	[cf_XOPEN_SOURCE_set=yes],
1400	[cf_XOPEN_SOURCE_set=no])
1401	AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
1402	if test $cf_XOPEN_SOURCE_set = yes
1403	then
1404		AC_TRY_COMPILE([#include <stdlib.h>],[
1405#if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
1406make an error
1407#endif],
1408		[cf_XOPEN_SOURCE_set_ok=yes],
1409		[cf_XOPEN_SOURCE_set_ok=no])
1410		if test $cf_XOPEN_SOURCE_set_ok = no
1411		then
1412			AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
1413		fi
1414	else
1415		CF_TRY_XOPEN_SOURCE
1416	fi
1417fi
1418])
1419