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aclocal.m4
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dnl $MawkId: aclocal.m4,v 1.84 2019/01/29 02:09:20 tom Exp $
dnl custom mawk macros for autoconf
dnl
dnl The symbols beginning "CF_MAWK_" were originally written by Mike Brennan,
dnl renamed for consistency by Thomas E Dickey.
dnl
dnl ---------------------------------------------------------------------------
dnl Copyright: 2008-2017,2019 by Thomas E. Dickey
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, distribute with modifications, sublicense, and/or sell
dnl copies of the Software, and to permit persons to whom the Software is
dnl furnished to do so, subject to the following conditions:
dnl
dnl The above copyright notice and this permission notice shall be included
dnl in all copies or 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 COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
dnl 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 ---------------------------------------------------------------------------
dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
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([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
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: 13 updated: 2017/02/25 18:57:40
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
(-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
case $cf_add_cflags in
(-D*)
cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
&& test -z "${cf_tst_cflags}" \
&& cf_fix_cppflags=yes
if test $cf_fix_cppflags = yes ; then
CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
continue
elif test "${cf_tst_cflags}" = "\"'" ; then
CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
continue
fi
;;
esac
case "$CPPFLAGS" in
(*$cf_add_cflags)
;;
(*)
case $cf_add_cflags in
(-D*)
cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
;;
esac
CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
;;
esac
;;
(*)
CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
;;
esac
;;
(yes)
CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
&& test -z "${cf_tst_cflags}" \
&& cf_fix_cppflags=no
;;
esac
done
if test -n "$cf_new_cflags" ; then
ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
fi
if test -n "$cf_new_cppflags" ; then
ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
fi
if test -n "$cf_new_extra_cppflags" ; then
ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_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: 2 updated: 2014/07/13 14:33:27
dnl -----------
dnl Add one or more libraries, used to enforce consistency. Libraries are
dnl prepended to an existing list, since their dependencies are assumed to
dnl already exist in the list.
dnl
dnl $1 = libraries to add, with the "-l", etc.
dnl $2 = variable to update (default $LIBS)
AC_DEFUN([CF_ADD_LIBS],[
cf_add_libs="$1"
# Filter out duplicates - this happens with badly-designed ".pc" files...
for cf_add_1lib in [$]ifelse($2,,LIBS,[$2])
do
for cf_add_2lib in $cf_add_libs
do
if test "x$cf_add_1lib" = "x$cf_add_2lib"
then
cf_add_1lib=
break
fi
done
test -n "$cf_add_1lib" && cf_add_libs="$cf_add_libs $cf_add_1lib"
done
ifelse($2,,LIBS,[$2])="$cf_add_libs"
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
dnl --------------
dnl use this macro for appending text without introducing an extra blank at
dnl the beginning
define([CF_APPEND_TEXT],
[
test -n "[$]$1" && $1="[$]$1 "
$1="[$]{$1}$2"
])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: 5 updated: 2015/05/10 19:52:14
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_BUILD_CC version: 8 updated: 2018/01/04 20:31:04
dnl -----------
dnl If we're cross-compiling, allow the user to override the tools and their
dnl options. The configure script is oriented toward identifying the host
dnl compiler, etc., but we need a build compiler to generate parts of the
dnl source.
dnl
dnl $1 = default for $CPPFLAGS
dnl $2 = default for $LIBS
AC_DEFUN([CF_BUILD_CC],[
CF_ACVERSION_CHECK(2.52,,
[AC_REQUIRE([CF_PROG_EXT])])
if test "$cross_compiling" = yes ; then
# defaults that we might want to override
: ${BUILD_CFLAGS:=''}
: ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
: ${BUILD_LDFLAGS:=''}
: ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
: ${BUILD_EXEEXT:='$x'}
: ${BUILD_OBJEXT:='o'}
AC_ARG_WITH(build-cc,
[ --with-build-cc=XXX the build C compiler ($BUILD_CC)],
[BUILD_CC="$withval"],
[AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
AC_MSG_CHECKING(for native build C compiler)
AC_MSG_RESULT($BUILD_CC)
AC_MSG_CHECKING(for native build C preprocessor)
AC_ARG_WITH(build-cpp,
[ --with-build-cpp=XXX the build C preprocessor ($BUILD_CPP)],
[BUILD_CPP="$withval"],
[BUILD_CPP='${BUILD_CC} -E'])
AC_MSG_RESULT($BUILD_CPP)
AC_MSG_CHECKING(for native build C flags)
AC_ARG_WITH(build-cflags,
[ --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
[BUILD_CFLAGS="$withval"])
AC_MSG_RESULT($BUILD_CFLAGS)
AC_MSG_CHECKING(for native build C preprocessor-flags)
AC_ARG_WITH(build-cppflags,
[ --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
[BUILD_CPPFLAGS="$withval"])
AC_MSG_RESULT($BUILD_CPPFLAGS)
AC_MSG_CHECKING(for native build linker-flags)
AC_ARG_WITH(build-ldflags,
[ --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
[BUILD_LDFLAGS="$withval"])
AC_MSG_RESULT($BUILD_LDFLAGS)
AC_MSG_CHECKING(for native build linker-libraries)
AC_ARG_WITH(build-libs,
[ --with-build-libs=XXX the build libraries (${BUILD_LIBS})],
[BUILD_LIBS="$withval"])
AC_MSG_RESULT($BUILD_LIBS)
# this assumes we're on Unix.
BUILD_EXEEXT=
BUILD_OBJEXT=o
: ${BUILD_CC:='${CC}'}
if ( test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}' ) ; then
AC_MSG_ERROR([Cross-build requires two compilers.
Use --with-build-cc to specify the native compiler.])
fi
else
: ${BUILD_CC:='${CC}'}
: ${BUILD_CPP:='${CPP}'}
: ${BUILD_CFLAGS:='${CFLAGS}'}
: ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
: ${BUILD_LDFLAGS:='${LDFLAGS}'}
: ${BUILD_LIBS:='${LIBS}'}
: ${BUILD_EXEEXT:='$x'}
: ${BUILD_OBJEXT:='o'}
fi
AC_SUBST(BUILD_CC)
AC_SUBST(BUILD_CPP)
AC_SUBST(BUILD_CFLAGS)
AC_SUBST(BUILD_CPPFLAGS)
AC_SUBST(BUILD_LDFLAGS)
AC_SUBST(BUILD_LIBS)
AC_SUBST(BUILD_EXEEXT)
AC_SUBST(BUILD_OBJEXT)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CC_ENV_FLAGS version: 9 updated: 2018/07/29 18:03:26
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
dnl with options, but eliminates a more common category of user confusion.
dnl
dnl In particular, it addresses the problem of being able to run the C
dnl preprocessor in a consistent manner.
dnl
dnl Caveat: this also disallows blanks in the pathname for the compiler, but
dnl the nuisance of having inconsistent settings for compiler and preprocessor
dnl outweighs that limitation.
AC_DEFUN([CF_CC_ENV_FLAGS],
[
# This should have been defined by AC_PROG_CC
: ${CC:=cc}
AC_MSG_CHECKING(\$CFLAGS variable)
case "x$CFLAGS" in
(*-[[IUD]]*)
AC_MSG_RESULT(broken)
AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
cf_flags="$CFLAGS"
CFLAGS=
for cf_arg in $cf_flags
do
CF_ADD_CFLAGS($cf_arg)
done
;;
(*)
AC_MSG_RESULT(ok)
;;
esac
AC_MSG_CHECKING(\$CC variable)
case "$CC" in
(*[[\ \ ]]-*)
AC_MSG_RESULT(broken)
AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
# humor him...
cf_prog=`echo "$CC" | sed -e 's/ / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
CC="$cf_prog"
for cf_arg in $cf_flags
do
case "x$cf_arg" in
(x-[[IUDfgOW]]*)
CF_ADD_CFLAGS($cf_arg)
;;
(*)
CC="$CC $cf_arg"
;;
esac
done
CF_VERBOSE(resulting CC: '$CC')
CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
;;
(*)
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_ENVIRON version: 3 updated: 2010/05/26 16:44:57
dnl ----------------
dnl Check for data that is usually declared in <unistd.h>, e.g., the 'environ'
dnl variable. Define a DECL_xxx symbol if we must declare it ourselves.
dnl
dnl $1 = the name to check
dnl $2 = the assumed type
AC_DEFUN([CF_CHECK_ENVIRON],
[
AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
AC_TRY_COMPILE([
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <unistd.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: 4 updated: 2015/04/18 08:56:57
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: 2 updated: 2013/11/19 19:23:35
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 = CLANG_COMPILER (default)
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,[$2]))
fi
])
dnl ---------------------------------------------------------------------------
dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
dnl ---------------
dnl You can always use "make -n" to see the actual options, but it's hard to
dnl pick out/analyze warning messages when the compile-line is long.
dnl
dnl Sets:
dnl ECHO_LT - symbol to control if libtool is verbose
dnl ECHO_LD - symbol to prefix "cc -o" lines
dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
dnl SHOW_CC - symbol to put before explicit "cc -c" lines
dnl ECHO_CC - symbol to put before any "cc" line
dnl
AC_DEFUN([CF_DISABLE_ECHO],[
AC_MSG_CHECKING(if you want to see long compiling messages)
CF_ARG_DISABLE(echo,
[ --disable-echo do not display "compiling" commands],
[
ECHO_LT='--silent'
ECHO_LD='@echo linking [$]@;'
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 "$with_no_leaks" = yes ; then
AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_ENABLE_TRACE version: 3 updated: 2012/10/04 05:24:07
dnl ---------------
AC_DEFUN([CF_ENABLE_TRACE],[
AC_MSG_CHECKING(if you want to enable debugging trace)
CF_ARG_ENABLE(trace,
[ --enable-trace test: turn on debug-tracing],
[with_trace=yes],
[with_trace=no])
AC_MSG_RESULT($with_trace)
if test "$with_trace" = "yes"
then
AC_DEFINE(OPT_TRACE,1,[Define to 1 if you want to enable debugging trace])
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_ENABLE_WARNINGS version: 5 updated: 2017/09/29 20:01:16
dnl ------------------
dnl Configure-option to enable gcc warnings
AC_DEFUN([CF_ENABLE_WARNINGS],[
if ( test "$GCC" = yes || test "$GXX" = yes )
then
AC_MSG_CHECKING(if you want to turn on gcc warnings)
CF_ARG_ENABLE(warnings,
[ --enable-warnings test: turn on gcc compiler warnings],
[with_warnings=yes],
[with_warnings=no])
AC_MSG_RESULT($with_warnings)
if test "$with_warnings" = "yes"
then
CF_GCC_ATTRIBUTES
CF_GCC_WARNINGS($1)
fi
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_GCC_ATTRIBUTES version: 17 updated: 2015/04/12 15:39:00
dnl -----------------
dnl Test for availability of useful gcc __attribute__ directives to quiet
dnl compiler warnings. Though useful, not all are supported -- and contrary
dnl to documentation, unrecognized directives cause older compilers to barf.
AC_DEFUN([CF_GCC_ATTRIBUTES],
[
if test "$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 $cf_attribute in
(printf)
cf_printf_attribute=yes
cat >conftest.h <<EOF
#define GCC_$cf_ATTRIBUTE 1
EOF
;;
(scanf)
cf_scanf_attribute=yes
cat >conftest.h <<EOF
#define GCC_$cf_ATTRIBUTE 1
EOF
;;
(*)
cat >conftest.h <<EOF
#define GCC_$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 $cf_attribute in
(noreturn)
AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
;;
(printf)
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)
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)
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: 33 updated: 2018/06/20 20:23:13
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 \
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 "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
for cf_opt in W Wall \
Wbad-function-cast \
Wcast-align \
Wcast-qual \
Wdeclaration-after-statement \
Wextra \
Winline \
Wmissing-declarations \
Wmissing-prototypes \
Wnested-externs \
Wpointer-arith \
Wshadow \
Wstrict-prototypes \
Wundef $cf_gcc_warnings $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
(Wcast-qual)
CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
;;
(Winline)
case $GCC_VERSION in
([[34]].*)
CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
continue;;
esac
;;
(Wpointer-arith)
case $GCC_VERSION in
([[12]].*)
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_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
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...
dnl
dnl Parameters:
dnl $1 is the nominal value for _XOPEN_SOURCE
AC_DEFUN([CF_GNU_SOURCE],
[
cf_gnu_xopen_source=ifelse($1,,500,$1)
AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
AC_TRY_COMPILE([#include <sys/types.h>],[
#if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
return 0;
#elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
return 0;
#else
# error not GNU C library
#endif],
[cf_cv_gnu_library=yes],
[cf_cv_gnu_library=no])
])
if test x$cf_cv_gnu_library = xyes; then
# With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
# was changed to help a little. newlib incorporated the change about 4
# years later.
AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
cf_save="$CPPFLAGS"
CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
AC_TRY_COMPILE([#include <sys/types.h>],[
#if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
return 0;
#elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
return 0;
#else
# error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
#endif],
[cf_cv_gnu_library_219=yes],
[cf_cv_gnu_library_219=no])
CPPFLAGS="$cf_save"
])
if test "x$cf_cv_gnu_library_219" = xyes; then
cf_save="$CPPFLAGS"
AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
AC_TRY_COMPILE([
#include <limits.h>
#include <sys/types.h>
],[
#if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
return 0;
#else
# error GNU C library is too old
#endif],
[cf_cv_gnu_dftsrc_219=yes],
[cf_cv_gnu_dftsrc_219=no])
])
test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
else
cf_cv_gnu_dftsrc_219=maybe
fi
if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
AC_TRY_COMPILE([#include <sys/types.h>],[
#ifndef _XOPEN_SOURCE
#error expected _XOPEN_SOURCE to be defined
#endif],
[cf_cv_gnu_source=no],
[cf_save="$CPPFLAGS"
CF_ADD_CFLAGS(-D_GNU_SOURCE)
AC_TRY_COMPILE([#include <sys/types.h>],[
#ifdef _XOPEN_SOURCE
#error expected _XOPEN_SOURCE to be undefined
#endif],
[cf_cv_gnu_source=no],
[cf_cv_gnu_source=yes])
CPPFLAGS="$cf_save"
])
])
if test "$cf_cv_gnu_source" = yes
then
AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
AC_TRY_COMPILE([#include <sys/types.h>],[
#ifdef _DEFAULT_SOURCE
#error expected _DEFAULT_SOURCE to be undefined
#endif],
[cf_cv_default_source=no],
[cf_cv_default_source=yes])
])
if test "$cf_cv_default_source" = yes
then
CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
fi
fi
fi
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_HELP_MESSAGE version: 3 updated: 1998/01/14 10:56:23
dnl ---------------
dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
AC_DEFUN([CF_HELP_MESSAGE],
[AC_DIVERT_HELP([$1])dnl
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_INTEL_COMPILER version: 7 updated: 2015/04/12 15:39:00
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],[
AC_REQUIRE([AC_CANONICAL_HOST])
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"
],[])
ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
;;
esac
fi