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-rw-r--r--patch_cmds/diffstat/aclocal.m41306
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diff --git a/patch_cmds/diffstat/aclocal.m4 b/patch_cmds/diffstat/aclocal.m4
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+++ b/patch_cmds/diffstat/aclocal.m4
@@ -0,0 +1,1306 @@
+dnl $Id: aclocal.m4,v 1.21 2012/01/03 09:37:14 tom Exp $
+dnl autoconf macros for 'diffstat'
+dnl
+dnl Copyright 2003-2010,2012 Thomas E. Dickey
+dnl
+dnl See also
+dnl http://invisible-island.net/autoconf/
+dnl
+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_ANSI_CC_CHECK version: 11 updated: 2011/07/01 19:47:45
+dnl ----------------
+dnl This was originally adapted from the macros 'fp_PROG_CC_STDC' and
+dnl 'fp_C_PROTOTYPES' in the sharutils 4.2 distribution.
+AC_DEFUN([CF_ANSI_CC_CHECK],
+[
+# This should have been defined by AC_PROG_CC
+: ${CC:=cc}
+
+# Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
+# into CC. This will not help with broken scripts that wrap the compiler with
+# options, but eliminates a more common category of user confusion.
+AC_MSG_CHECKING(\$CC variable)
+case "$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
+
+AC_CACHE_CHECK(for ${CC:-cc} option to accept ANSI C, cf_cv_ansi_cc,[
+cf_cv_ansi_cc=no
+cf_save_CFLAGS="$CFLAGS"
+cf_save_CPPFLAGS="$CPPFLAGS"
+# Don't try gcc -ansi; that turns off useful extensions and
+# breaks some systems' header files.
+# AIX -qlanglvl=ansi
+# Ultrix and OSF/1 -std1
+# HP-UX -Aa -D_HPUX_SOURCE
+# SVR4 -Xc
+# UnixWare 1.2 (cannot use -Xc, since ANSI/POSIX clashes)
+for cf_arg in "-DCC_HAS_PROTOS" \
+ "" \
+ -qlanglvl=ansi \
+ -std1 \
+ -Ae \
+ "-Aa -D_HPUX_SOURCE" \
+ -Xc
+do
+ CF_ADD_CFLAGS($cf_arg)
+ AC_TRY_COMPILE(
+[
+#ifndef CC_HAS_PROTOS
+#if !defined(__STDC__) || (__STDC__ != 1)
+choke me
+#endif
+#endif
+],[
+ int test (int i, double x);
+ struct s1 {int (*f) (int a);};
+ struct s2 {int (*f) (double a);};],
+ [cf_cv_ansi_cc="$cf_arg"; break])
+done
+CFLAGS="$cf_save_CFLAGS"
+CPPFLAGS="$cf_save_CPPFLAGS"
+])
+
+if test "$cf_cv_ansi_cc" != "no"; then
+if test ".$cf_cv_ansi_cc" != ".-DCC_HAS_PROTOS"; then
+ CF_ADD_CFLAGS($cf_cv_ansi_cc)
+else
+ AC_DEFINE(CC_HAS_PROTOS)
+fi
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ANSI_CC_REQD version: 4 updated: 2008/03/23 14:48:54
+dnl ---------------
+dnl For programs that must use an ANSI compiler, obtain compiler options that
+dnl will make it recognize prototypes. We'll do preprocessor checks in other
+dnl macros, since tools such as unproto can fake prototypes, but only part of
+dnl the preprocessor.
+AC_DEFUN([CF_ANSI_CC_REQD],
+[AC_REQUIRE([CF_ANSI_CC_CHECK])
+if test "$cf_cv_ansi_cc" = "no"; then
+ AC_MSG_ERROR(
+[Your compiler does not appear to recognize prototypes.
+You have the following choices:
+ a. adjust your compiler options
+ b. get an up-to-date compiler
+ c. use a wrapper such as unproto])
+fi
+])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_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_CHECK_CACHE version: 11 updated: 2008/03/23 14:45:59
+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,"$system_name")
+AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$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 ($cf_cv_system_name))
+ AC_MSG_ERROR("Please remove config.cache and try again.")
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_DISABLE_ECHO version: 11 updated: 2009/12/13 13:16:57
+dnl ---------------
+dnl You can always use "make -n" to see the actual options, but it's hard to
+dnl pick out/analyze warning messages when the compile-line is long.
+dnl
+dnl Sets:
+dnl ECHO_LT - symbol to control if libtool is verbose
+dnl ECHO_LD - symbol to prefix "cc -o" lines
+dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
+dnl SHOW_CC - symbol to put before explicit "cc -c" lines
+dnl ECHO_CC - symbol to put before any "cc" line
+dnl
+AC_DEFUN([CF_DISABLE_ECHO],[
+AC_MSG_CHECKING(if you want to see long compiling messages)
+CF_ARG_DISABLE(echo,
+ [ --disable-echo display "compiling" commands],
+ [
+ ECHO_LT='--silent'
+ ECHO_LD='@echo linking [$]@;'
+ RULE_CC='@echo compiling [$]<'
+ SHOW_CC='@echo compiling [$]@'
+ ECHO_CC='@'
+],[
+ ECHO_LT=''
+ ECHO_LD=''
+ RULE_CC=''
+ SHOW_CC=''
+ ECHO_CC=''
+])
+AC_MSG_RESULT($enableval)
+AC_SUBST(ECHO_LT)
+AC_SUBST(ECHO_LD)
+AC_SUBST(RULE_CC)
+AC_SUBST(SHOW_CC)
+AC_SUBST(ECHO_CC)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_DISABLE_LEAKS version: 6 updated: 2010/07/23 04:14:32
+dnl ----------------
+dnl Combine no-leak checks with the libraries or tools that are used for the
+dnl checks.
+AC_DEFUN([CF_DISABLE_LEAKS],[
+
+AC_REQUIRE([CF_WITH_DMALLOC])
+AC_REQUIRE([CF_WITH_DBMALLOC])
+AC_REQUIRE([CF_WITH_VALGRIND])
+
+AC_MSG_CHECKING(if you want to perform memory-leak testing)
+AC_ARG_ENABLE(leaks,
+ [ --disable-leaks test: free permanent memory, analyze leaks],
+ [if test "x$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 "$with_no_leaks" = yes ; then
+ AC_DEFINE(NO_LEAKS)
+ AC_DEFINE(YY_NO_LEAKS)
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_GCC_ATTRIBUTES version: 14 updated: 2010/10/23 15:52:32
+dnl -----------------
+dnl Test for availability of useful gcc __attribute__ directives to quiet
+dnl compiler warnings. Though useful, not all are supported -- and contrary
+dnl to documentation, unrecognized directives cause older compilers to barf.
+AC_DEFUN([CF_GCC_ATTRIBUTES],
+[
+if test "$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 $cf_attribute in #(vi
+ printf) #(vi
+ if test "$cf_printf_attribute" = no ; then
+ cat >>confdefs.h <<EOF
+#define GCC_PRINTFLIKE(fmt,var) /* nothing */
+EOF
+ else
+ cat >>confdefs.h <<EOF
+#define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
+EOF
+ fi
+ ;;
+ scanf) #(vi
+ if test "$cf_scanf_attribute" = no ; then
+ cat >>confdefs.h <<EOF
+#define GCC_SCANFLIKE(fmt,var) /* nothing */
+EOF
+ else
+ cat >>confdefs.h <<EOF
+#define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
+EOF
+ fi
+ ;;
+ esac
+ fi
+ done
+else
+ fgrep define conftest.i >>confdefs.h
+fi
+rm -rf conftest*
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_GCC_VERSION version: 5 updated: 2010/04/24 11:02:31
+dnl --------------
+dnl Find version of gcc
+AC_DEFUN([CF_GCC_VERSION],[
+AC_REQUIRE([AC_PROG_CC])
+GCC_VERSION=none
+if test "$GCC" = yes ; then
+ AC_MSG_CHECKING(version of $CC)
+ GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
+ test -z "$GCC_VERSION" && GCC_VERSION=unknown
+ AC_MSG_RESULT($GCC_VERSION)
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_GCC_WARNINGS version: 27 updated: 2010/10/23 15:52:32
+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 $with_ext_const is "yes", add a check for -Wwrite-strings
+dnl
+AC_DEFUN([CF_GCC_WARNINGS],
+[
+AC_REQUIRE([CF_GCC_VERSION])
+CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
+
+cat > conftest.$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 \
+ wd810 \
+ wd869 \
+ wd981
+ do
+ CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
+ if AC_TRY_EVAL(ac_compile); then
+ test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
+ EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
+ fi
+ done
+ CFLAGS="$cf_save_CFLAGS"
+
+elif test "$GCC" = yes
+then
+ AC_CHECKING([for $CC warning options])
+ cf_save_CFLAGS="$CFLAGS"
+ EXTRA_CFLAGS=
+ cf_warn_CONST=""
+ test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
+ for cf_opt in W Wall \
+ Wbad-function-cast \
+ Wcast-align \
+ Wcast-qual \
+ Winline \
+ Wmissing-declarations \
+ Wmissing-prototypes \
+ Wnested-externs \
+ Wpointer-arith \
+ Wshadow \
+ Wstrict-prototypes \
+ Wundef $cf_warn_CONST $1
+ do
+ CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
+ if AC_TRY_EVAL(ac_compile); then
+ test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
+ case $cf_opt in #(vi
+ Wcast-qual) #(vi
+ CPPFLAGS="$CPPFLAGS -DXTSTRINGDEFINES"
+ ;;
+ Winline) #(vi
+ case $GCC_VERSION in
+ [[34]].*)
+ CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
+ continue;;
+ esac
+ ;;
+ esac
+ EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
+ fi
+ done
+ CFLAGS="$cf_save_CFLAGS"
+fi
+rm -rf conftest*
+
+AC_SUBST(EXTRA_CFLAGS)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_GETOPT_HEADER version: 4 updated: 2009/08/31 20:07:52
+dnl ----------------
+dnl Check for getopt's variables which are commonly defined in stdlib.h,
+dnl unistd.h or (nonstandard) in getopt.h
+AC_DEFUN([CF_GETOPT_HEADER],
+[
+AC_HAVE_HEADERS(unistd.h getopt.h)
+AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
+cf_cv_getopt_header=none
+for cf_header in stdio.h stdlib.h unistd.h getopt.h
+do
+AC_TRY_COMPILE([
+#include <$cf_header>],
+[int x = optind; char *y = optarg],
+[cf_cv_getopt_header=$cf_header
+ break])
+done
+])
+if test $cf_cv_getopt_header != none ; then
+ AC_DEFINE(HAVE_GETOPT_HEADER)
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_GNU_SOURCE version: 6 updated: 2005/07/09 13:23:07
+dnl -------------
+dnl Check if we must define _GNU_SOURCE to get a reasonable value for
+dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
+dnl (or misfeature) of glibc2, which breaks portability of many applications,
+dnl since it is interwoven with GNU extensions.
+dnl
+dnl Well, yes we could work around it...
+AC_DEFUN([CF_GNU_SOURCE],
+[
+AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
+AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifndef _XOPEN_SOURCE
+make an error
+#endif],
+ [cf_cv_gnu_source=no],
+ [cf_save="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
+ AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifdef _XOPEN_SOURCE
+make an error
+#endif],
+ [cf_cv_gnu_source=no],
+ [cf_cv_gnu_source=yes])
+ CPPFLAGS="$cf_save"
+ ])
+])
+test "$cf_cv_gnu_source" = yes && CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_GNU_SOURCE version: 6 updated: 2005/07/09 13:23:07
+dnl -------------
+dnl Check if we must define _GNU_SOURCE to get a reasonable value for
+dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
+dnl (or misfeature) of glibc2, which breaks portability of many applications,
+dnl since it is interwoven with GNU extensions.
+dnl
+dnl Well, yes we could work around it...
+AC_DEFUN([CF_GNU_SOURCE],
+[
+AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
+AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifndef _XOPEN_SOURCE
+make an error
+#endif],
+ [cf_cv_gnu_source=no],
+ [cf_save="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
+ AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifdef _XOPEN_SOURCE
+make an error
+#endif],
+ [cf_cv_gnu_source=no],
+ [cf_cv_gnu_source=yes])
+ CPPFLAGS="$cf_save"
+ ])
+])
+test "$cf_cv_gnu_source" = yes && CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_INTEL_COMPILER version: 4 updated: 2010/05/26 05:38:42
+dnl -----------------
+dnl Check if the given compiler is really the Intel compiler for Linux. It
+dnl tries to imitate gcc, but does not return an error when it finds a mismatch
+dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
+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_INTEL_COMPILER],[
+ifelse([$2],,INTEL_COMPILER,[$2])=no
+
+if test "$ifelse([$1],,[$1],GCC)" = yes ; then
+ case $host_os in
+ linux*|gnu*)
+ AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
+ cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
+ ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
+ AC_TRY_COMPILE([],[
+#ifdef __INTEL_COMPILER
+#else
+make an error
+#endif
+],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
+cf_save_CFLAGS="$cf_save_CFLAGS -we147 -no-gcc"
+],[])
+ ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
+ AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
+ ;;
+ esac
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
+dnl ------------
+dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
+dnl a monocase filesystem.
+AC_DEFUN([CF_MAKE_TAGS],[
+AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
+
+AC_CHECK_PROGS(CTAGS, exctags ctags)
+AC_CHECK_PROGS(ETAGS, exetags etags)
+
+AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
+
+if test "$cf_cv_mixedcase" = yes ; then
+ AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
+else
+ MAKE_UPPER_TAGS=no
+fi
+
+if test "$MAKE_UPPER_TAGS" = yes ; then
+ MAKE_UPPER_TAGS=
+else
+ MAKE_UPPER_TAGS="#"
+fi
+
+if test "$MAKE_LOWER_TAGS" = yes ; then
+ MAKE_LOWER_TAGS=
+else
+ MAKE_LOWER_TAGS="#"
+fi
+
+AC_SUBST(CTAGS)
+AC_SUBST(ETAGS)
+
+AC_SUBST(MAKE_UPPER_TAGS)
+AC_SUBST(MAKE_LOWER_TAGS)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_MIXEDCASE_FILENAMES version: 3 updated: 2003/09/20 17:07:55
+dnl ----------------------
+dnl Check if the file-system supports mixed-case filenames. If we're able to
+dnl create a lowercase name and see it as uppercase, it doesn't support that.
+AC_DEFUN([CF_MIXEDCASE_FILENAMES],
+[
+AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
+if test "$cross_compiling" = yes ; then
+ case $target_alias in #(vi
+ *-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-mingw32*|*-uwin*) #(vi
+ cf_cv_mixedcase=no
+ ;;
+ *)
+ cf_cv_mixedcase=yes
+ ;;
+ esac
+else
+ rm -f conftest CONFTEST
+ echo test >conftest
+ if test -f CONFTEST ; then
+ cf_cv_mixedcase=no
+ else
+ cf_cv_mixedcase=yes
+ fi
+ rm -f conftest CONFTEST
+fi
+])
+test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
+dnl ----------
+dnl Write a debug message to config.log, along with the line number in the
+dnl configure script.
+AC_DEFUN([CF_MSG_LOG],[
+echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_NO_LEAKS_OPTION version: 4 updated: 2006/12/16 14:24:05
+dnl ------------------
+dnl see CF_WITH_NO_LEAKS
+AC_DEFUN([CF_NO_LEAKS_OPTION],[
+AC_MSG_CHECKING(if you want to use $1 for testing)
+AC_ARG_WITH($1,
+ [$2],
+ [AC_DEFINE($3)ifelse([$4],,[
+ $4
+])
+ : ${with_cflags:=-g}
+ : ${with_no_leaks:=yes}
+ with_$1=yes],
+ [with_$1=])
+AC_MSG_RESULT(${with_$1:-no})
+
+case .$with_cflags in #(vi
+.*-g*)
+ case .$CFLAGS in #(vi
+ .*-g*) #(vi
+ ;;
+ *)
+ CF_ADD_CFLAGS([-g])
+ ;;
+ esac
+ ;;
+esac
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PATHSEP version: 5 updated: 2010/05/26 05:38:42
+dnl ----------
+dnl Provide a value for the $PATH and similar separator
+AC_DEFUN([CF_PATHSEP],
+[
+ case $cf_cv_system_name in
+ os2*) PATH_SEPARATOR=';' ;;
+ *) PATH_SEPARATOR=':' ;;
+ esac
+ifelse([$1],,,[$1=$PATH_SEPARATOR])
+ AC_SUBST(PATH_SEPARATOR)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PATH_PROG version: 8 updated: 2010/10/23 16:12:25
+dnl ------------
+dnl Check for a given program, defining corresponding symbol.
+dnl $1 = environment variable, which is suffixed by "_PATH" in the #define.
+dnl $2 = program name to find.
+dnl $3 = optional list of additional program names to test.
+dnl
+dnl If there is more than one token in the result, #define the remaining tokens
+dnl to $1_ARGS. We need this for 'install' in particular.
+dnl
+dnl FIXME: we should allow this to be overridden by environment variables
+dnl
+AC_DEFUN([CF_PATH_PROG],[
+AC_REQUIRE([CF_PATHSEP])
+test -z "[$]$1" && $1=$2
+AC_PATH_PROGS($1,[$]$1 $2 $3,[$]$1)
+
+cf_path_prog=""
+cf_path_args=""
+IFS="${IFS:- }"; cf_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR"
+for cf_temp in $ac_cv_path_$1
+do
+ if test -z "$cf_path_prog" ; then
+ if test "$with_full_paths" = yes ; then
+ CF_PATH_SYNTAX(cf_temp,break)
+ cf_path_prog="$cf_temp"
+ else
+ cf_path_prog="`basename $cf_temp`"
+ fi
+ elif test -z "$cf_path_args" ; then
+ cf_path_args="$cf_temp"
+ else
+ cf_path_args="$cf_path_args $cf_temp"
+ fi
+done
+IFS="$cf_save_ifs"
+
+if test -n "$cf_path_prog" ; then
+ CF_MSG_LOG(defining path for ${cf_path_prog})
+ AC_DEFINE_UNQUOTED($1_PATH,"$cf_path_prog")
+ test -n "$cf_path_args" && AC_DEFINE_UNQUOTED($1_ARGS,"$cf_path_args")
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PATH_SYNTAX version: 13 updated: 2010/05/26 05:38:42
+dnl --------------
+dnl Check the argument to see that it looks like a pathname. Rewrite it if it
+dnl begins with one of the prefix/exec_prefix variables, and then again if the
+dnl result begins with 'NONE'. This is necessary to work around autoconf's
+dnl delayed evaluation of those symbols.
+AC_DEFUN([CF_PATH_SYNTAX],[
+if test "x$prefix" != xNONE; then
+ cf_path_syntax="$prefix"
+else
+ cf_path_syntax="$ac_default_prefix"
+fi
+
+case ".[$]$1" in #(vi
+.\[$]\(*\)*|.\'*\'*) #(vi
+ ;;
+..|./*|.\\*) #(vi
+ ;;
+.[[a-zA-Z]]:[[\\/]]*) #(vi OS/2 EMX
+ ;;
+.\[$]{*prefix}*) #(vi
+ eval $1="[$]$1"
+ case ".[$]$1" in #(vi
+ .NONE/*)
+ $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
+ ;;
+ esac
+ ;; #(vi
+.no|.NONE/*)
+ $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
+ ;;
+*)
+ ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
+ ;;
+esac
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_POSIX_C_SOURCE version: 8 updated: 2010/05/26 05:38:42
+dnl -----------------
+dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
+dnl
+dnl POSIX.1-1990 _POSIX_SOURCE
+dnl POSIX.1-1990 and _POSIX_SOURCE and
+dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
+dnl Bindings Option
+dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
+dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
+dnl X/Open 2000 _POSIX_C_SOURCE=200112L
+dnl
+dnl Parameters:
+dnl $1 is the nominal value for _POSIX_C_SOURCE
+AC_DEFUN([CF_POSIX_C_SOURCE],
+[
+cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
+
+cf_save_CFLAGS="$CFLAGS"
+cf_save_CPPFLAGS="$CPPFLAGS"
+
+CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
+CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
+
+AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
+ CF_MSG_LOG(if the symbol is already defined go no further)
+ AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifndef _POSIX_C_SOURCE
+make an error
+#endif],
+ [cf_cv_posix_c_source=no],
+ [cf_want_posix_source=no
+ case .$cf_POSIX_C_SOURCE in #(vi
+ .[[12]]??*) #(vi
+ cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
+ ;;
+ .2) #(vi
+ cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
+ cf_want_posix_source=yes
+ ;;
+ .*)
+ cf_want_posix_source=yes
+ ;;
+ esac
+ if test "$cf_want_posix_source" = yes ; then
+ AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifdef _POSIX_SOURCE
+make an error
+#endif],[],
+ cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
+ fi
+ CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
+ CFLAGS="$cf_trim_CFLAGS"
+ CPPFLAGS="$cf_trim_CPPFLAGS $cf_cv_posix_c_source"
+ CF_MSG_LOG(if the second compile does not leave our definition intact error)
+ AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifndef _POSIX_C_SOURCE
+make an error
+#endif],,
+ [cf_cv_posix_c_source=no])
+ CFLAGS="$cf_save_CFLAGS"
+ CPPFLAGS="$cf_save_CPPFLAGS"
+ ])
+])
+
+if test "$cf_cv_posix_c_source" != no ; then
+ CFLAGS="$cf_trim_CFLAGS"
+ CPPFLAGS="$cf_trim_CPPFLAGS"
+ CF_ADD_CFLAGS($cf_cv_posix_c_source)
+fi
+
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PROG_CC_U_D version: 1 updated: 2005/07/14 16:59:30
+dnl --------------
+dnl Check if C (preprocessor) -U and -D options are processed in the order
+dnl given rather than by type of option. Some compilers insist on apply all
+dnl of the -U options after all of the -D options. Others allow mixing them,
+dnl and may predefine symbols that conflict with those we define.
+AC_DEFUN([CF_PROG_CC_U_D],
+[
+AC_CACHE_CHECK(if $CC -U and -D options work together,cf_cv_cc_u_d_options,[
+ cf_save_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="-UU_D_OPTIONS -DU_D_OPTIONS -DD_U_OPTIONS -UD_U_OPTIONS"
+ AC_TRY_COMPILE([],[
+#ifndef U_D_OPTIONS
+make an undefined-error
+#endif
+#ifdef D_U_OPTIONS
+make a defined-error
+#endif
+ ],[
+ cf_cv_cc_u_d_options=yes],[
+ cf_cv_cc_u_d_options=no])
+ CPPFLAGS="$cf_save_CPPFLAGS"
+])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PROG_EXT version: 10 updated: 2004/01/03 19:28:18
+dnl -----------
+dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
+AC_DEFUN([CF_PROG_EXT],
+[
+AC_REQUIRE([CF_CHECK_CACHE])
+case $cf_cv_system_name in
+os2*)
+ CFLAGS="$CFLAGS -Zmt"
+ CPPFLAGS="$CPPFLAGS -D__ST_MT_ERRNO__"
+ CXXFLAGS="$CXXFLAGS -Zmt"
+ # autoconf's macro sets -Zexe and suffix both, which conflict:w
+ LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
+ ac_cv_exeext=.exe
+ ;;
+esac
+
+AC_EXEEXT
+AC_OBJEXT
+
+PROG_EXT="$EXEEXT"
+AC_SUBST(PROG_EXT)
+test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT")
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PROG_LINT version: 2 updated: 2009/08/12 04:43:14
+dnl ------------
+AC_DEFUN([CF_PROG_LINT],
+[
+AC_CHECK_PROGS(LINT, tdlint lint alint splint lclint)
+AC_SUBST(LINT_OPTS)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
+dnl ----------------
+dnl Remove all -U and -D options that refer to the given symbol from a list
+dnl of C compiler options. This works around the problem that not all
+dnl compilers process -U and -D options from left-to-right, so a -U option
+dnl cannot be used to cancel the effect of a preceding -D option.
+dnl
+dnl $1 = target (which could be the same as the source variable)
+dnl $2 = source (including '$')
+dnl $3 = symbol to remove
+define([CF_REMOVE_DEFINE],
+[
+$1=`echo "$2" | \
+ sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
+ -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_STDIO_UNLOCKED version: 3 updated: 2009/10/06 19:54:39
+dnl -----------------
+dnl The four functions getc_unlocked(), getchar_unlocked(), putc_unlocked(),
+dnl putchar_unlocked() are in POSIX.1-2001.
+dnl
+dnl Test for one or more of the "unlocked" stdio getc/putc functions, and (if
+dnl the system requires it to declare the prototype) define _REENTRANT
+dnl
+dnl $1 = one or more stdio functions to check for existence and prototype.
+AC_DEFUN([CF_STDIO_UNLOCKED],
+[
+cf_stdio_unlocked=no
+AC_CHECK_FUNCS(ifelse([$1],,[getc_unlocked putc_unlocked],[$1]),
+ [cf_stdio_unlocked=$ac_func])
+if test "$cf_stdio_unlocked" != no ; then
+ case "$CPPFLAGS" in #(vi
+ *-D_REENTRANT*) #(vi
+ ;;
+ *)
+ AC_CACHE_CHECK(if we should define _REENTRANT,cf_cv_stdio_unlocked,[
+ AC_TRY_COMPILE([#include <stdio.h>],[
+ extern void *$cf_stdio_unlocked(void *);
+ void *dummy = $cf_stdio_unlocked(0)],
+ [cf_cv_stdio_unlocked=yes],
+ [cf_cv_stdio_unlocked=no])])
+ if test "$cf_cv_stdio_unlocked" = yes ; then
+ AC_DEFINE(_REENTRANT)
+ fi
+ ;;
+ esac
+fi
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_TRY_XOPEN_SOURCE version: 1 updated: 2011/10/30 17:09:50
+dnl -------------------
+dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
+dnl can define it successfully.
+AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
+AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
+ AC_TRY_COMPILE([
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+],[
+#ifndef _XOPEN_SOURCE
+make an error
+#endif],
+ [cf_cv_xopen_source=no],
+ [cf_save="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
+ AC_TRY_COMPILE([
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+],[
+#ifdef _XOPEN_SOURCE
+make an error
+#endif],
+ [cf_cv_xopen_source=no],
+ [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
+ CPPFLAGS="$cf_save"
+ ])
+])
+
+if test "$cf_cv_xopen_source" != no ; then
+ CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
+ CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
+ cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
+ CF_ADD_CFLAGS($cf_temp_xopen_source)
+fi
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
+dnl --------
+dnl Make an uppercase version of a variable
+dnl $1=uppercase($2)
+AC_DEFUN([CF_UPPER],
+[
+$1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
+dnl ----------
+dnl Use AC_VERBOSE w/o the warnings
+AC_DEFUN([CF_VERBOSE],
+[test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
+CF_MSG_LOG([$1])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
+dnl ----------------
+dnl Configure-option for dbmalloc. The optional parameter is used to override
+dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
+AC_DEFUN([CF_WITH_DBMALLOC],[
+CF_NO_LEAKS_OPTION(dbmalloc,
+ [ --with-dbmalloc test: use Conor Cahill's dbmalloc library],
+ [USE_DBMALLOC])
+
+if test "$with_dbmalloc" = yes ; then
+ AC_CHECK_HEADER(dbmalloc.h,
+ [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
+dnl ---------------
+dnl Configure-option for dmalloc. The optional parameter is used to override
+dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
+AC_DEFUN([CF_WITH_DMALLOC],[
+CF_NO_LEAKS_OPTION(dmalloc,
+ [ --with-dmalloc test: use Gray Watson's dmalloc library],
+ [USE_DMALLOC])
+
+if test "$with_dmalloc" = yes ; then
+ AC_CHECK_HEADER(dmalloc.h,
+ [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_WITH_INSTALL_PREFIX version: 4 updated: 2010/10/23 15:52:32
+dnl ----------------------
+dnl Configure-script option to give a default value for the poorly-chosen name
+dnl $(DESTDIR).
+AC_DEFUN([CF_WITH_INSTALL_PREFIX],
+[
+AC_MSG_CHECKING(for install-prefix)
+AC_ARG_WITH(install-prefix,
+ [ --with-install-prefix=XXX sets DESTDIR, useful for packaging],
+ [cf_opt_with_install_prefix=$withval],
+ [cf_opt_with_install_prefix=${DESTDIR:-no}])
+AC_MSG_RESULT($cf_opt_with_install_prefix)
+if test "$cf_opt_with_install_prefix" != no ; then
+ CF_PATH_SYNTAX(cf_opt_with_install_prefix)
+ DESTDIR=$cf_opt_with_install_prefix
+fi
+AC_SUBST(DESTDIR)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_WITH_PURIFY version: 2 updated: 2006/12/14 18:43:43
+dnl --------------
+AC_DEFUN([CF_WITH_PURIFY],[
+CF_NO_LEAKS_OPTION(purify,
+ [ --with-purify test: use Purify],
+ [USE_PURIFY],
+ [LINK_PREFIX="$LINK_PREFIX purify"])
+AC_SUBST(LINK_PREFIX)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
+dnl ----------------
+AC_DEFUN([CF_WITH_VALGRIND],[
+CF_NO_LEAKS_OPTION(valgrind,
+ [ --with-valgrind test: use valgrind],
+ [USE_VALGRIND])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_WITH_WARNINGS version: 5 updated: 2004/07/23 14:40:34
+dnl ----------------
+dnl Combine the checks for gcc features into a configure-script option
+dnl
+dnl Parameters:
+dnl $1 - see CF_GCC_WARNINGS
+AC_DEFUN([CF_WITH_WARNINGS],
+[
+if ( test "$GCC" = yes || test "$GXX" = yes )
+then
+AC_MSG_CHECKING(if you want to check for gcc warnings)
+AC_ARG_WITH(warnings,
+ [ --with-warnings test: turn on gcc warnings],
+ [cf_opt_with_warnings=$withval],
+ [cf_opt_with_warnings=no])
+AC_MSG_RESULT($cf_opt_with_warnings)
+if test "$cf_opt_with_warnings" != no ; then
+ CF_GCC_ATTRIBUTES
+ CF_GCC_WARNINGS([$1])
+fi
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_XOPEN_SOURCE version: 41 updated: 2011/12/10 18:58:47
+dnl ---------------
+dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
+dnl or adapt to the vendor's definitions to get equivalent functionality,
+dnl without losing the common non-POSIX features.
+dnl
+dnl Parameters:
+dnl $1 is the nominal value for _XOPEN_SOURCE
+dnl $2 is the nominal value for _POSIX_C_SOURCE
+AC_DEFUN([CF_XOPEN_SOURCE],[
+
+cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
+cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
+cf_xopen_source=
+
+case $host_os in #(vi
+aix[[4-7]]*) #(vi
+ cf_xopen_source="-D_ALL_SOURCE"
+ ;;
+cygwin) #(vi
+ cf_XOPEN_SOURCE=600
+ ;;
+darwin[[0-8]].*) #(vi
+ cf_xopen_source="-D_APPLE_C_SOURCE"
+ ;;
+darwin*) #(vi
+ cf_xopen_source="-D_DARWIN_C_SOURCE"
+ ;;
+freebsd*|dragonfly*) #(vi
+ # 5.x headers associate
+ # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
+ # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
+ cf_POSIX_C_SOURCE=200112L
+ cf_XOPEN_SOURCE=600
+ cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
+ ;;
+hpux11*) #(vi
+ cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
+ ;;
+hpux*) #(vi
+ cf_xopen_source="-D_HPUX_SOURCE"
+ ;;
+irix[[56]].*) #(vi
+ cf_xopen_source="-D_SGI_SOURCE"
+ cf_XOPEN_SOURCE=
+ ;;
+linux*|gnu*|mint*|k*bsd*-gnu) #(vi
+ CF_GNU_SOURCE
+ ;;
+mirbsd*) #(vi
+ # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
+ cf_XOPEN_SOURCE=
+ CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
+ ;;
+netbsd*) #(vi
+ cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
+ ;;
+openbsd[[4-9]]*) #(vi
+ # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
+ cf_XOPEN_SOURCE=600
+ ;;
+openbsd*) #(vi
+ # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
+ ;;
+osf[[45]]*) #(vi
+ cf_xopen_source="-D_OSF_SOURCE"
+ ;;
+nto-qnx*) #(vi
+ cf_xopen_source="-D_QNX_SOURCE"
+ ;;
+sco*) #(vi
+ # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
+ ;;
+solaris2.*) #(vi
+ cf_xopen_source="-D__EXTENSIONS__"
+ ;;
+*)
+ CF_TRY_XOPEN_SOURCE
+ CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
+ ;;
+esac
+
+if test -n "$cf_xopen_source" ; then
+ CF_ADD_CFLAGS($cf_xopen_source)
+fi
+
+dnl In anything but the default case, we may have system-specific setting
+dnl which is still not guaranteed to provide all of the entrypoints that
+dnl _XOPEN_SOURCE would yield.
+if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
+ AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
+ AC_TRY_COMPILE([#include <stdlib.h>],[
+#ifndef _XOPEN_SOURCE
+make an error
+#endif],
+ [cf_XOPEN_SOURCE_set=yes],
+ [cf_XOPEN_SOURCE_set=no])
+ AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
+ if test $cf_XOPEN_SOURCE_set = yes
+ then
+ AC_TRY_COMPILE([#include <stdlib.h>],[
+#if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
+make an error
+#endif],
+ [cf_XOPEN_SOURCE_set_ok=yes],
+ [cf_XOPEN_SOURCE_set_ok=no])
+ if test $cf_XOPEN_SOURCE_set_ok = no
+ then
+ AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
+ fi
+ else
+ CF_TRY_XOPEN_SOURCE
+ fi
+fi
+])
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