diff options
author | dscho <dscho> | 2003-07-10 09:29:01 +0000 |
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committer | dscho <dscho> | 2003-07-10 09:29:01 +0000 |
commit | d5ac0a551a459b4954dc5a9fd0b184a3f25fded0 (patch) | |
tree | 7030f24876904cd95fb97c993e61a7caf11becd7 /aclocal.m4 | |
parent | ebc250a946ab47cf2cd685b7ff8896a12c5ed89b (diff) | |
download | libtdevnc-d5ac0a551a459b4954dc5a9fd0b184a3f25fded0.tar.gz libtdevnc-d5ac0a551a459b4954dc5a9fd0b184a3f25fded0.zip |
another try to make CVS more helpful with configure
Diffstat (limited to 'aclocal.m4')
-rw-r--r-- | aclocal.m4 | 1076 |
1 files changed, 1076 insertions, 0 deletions
diff --git a/aclocal.m4 b/aclocal.m4 new file mode 100644 index 0000000..6c77feb --- /dev/null +++ b/aclocal.m4 @@ -0,0 +1,1076 @@ +# aclocal.m4 generated automatically by aclocal 1.5 + +# Copyright 1996, 1997, 1998, 1999, 2000, 2001 +# Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +AH_TEMPLATE(socklen_t, [The type for socklen]) +AC_DEFUN([AC_TYPE_SOCKLEN_T], +[AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t, +[ + AC_TRY_COMPILE( + [#include <sys/types.h> + #include <sys/socket.h>], + [socklen_t len = 42; return 0;], + ac_cv_type_socklen_t=yes, + ac_cv_type_socklen_t=no) +]) + if test $ac_cv_type_socklen_t != yes; then + AC_DEFINE(socklen_t, int) + fi +]) + +dnl Available from the GNU Autoconf Macro Archive at: +dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_compile_check_sizeof.html +dnl +AC_DEFUN([AC_COMPILE_CHECK_SIZEOF], +[changequote(<<, >>)dnl +dnl The name to #define. +define(<<AC_TYPE_NAME>>, translit(sizeof_$1, [a-z *], [A-Z_P]))dnl +dnl The cache variable name. +define(<<AC_CV_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl +changequote([, ])dnl +AC_MSG_CHECKING(size of $1) +AC_CACHE_VAL(AC_CV_NAME, +[for ac_size in 4 8 1 2 16 $2 ; do # List sizes in rough order of prevalence. + AC_TRY_COMPILE([#include "confdefs.h" +#include <sys/types.h> +$2 +], [switch (0) case 0: case (sizeof ($1) == $ac_size):;], AC_CV_NAME=$ac_size) + if test x$AC_CV_NAME != x ; then break; fi +done +]) +if test x$AC_CV_NAME = x ; then + AC_MSG_ERROR([cannot determine a size for $1]) +fi +AC_MSG_RESULT($AC_CV_NAME) +AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME, [The number of bytes in type $1]) +undefine([AC_TYPE_NAME])dnl +undefine([AC_CV_NAME])dnl +]) + +dnl Available from the GNU Autoconf Macro Archive at: +dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_create_stdint_h.html +dnl +AC_DEFUN([AC_CREATE_STDINT_H], +[# ------ AC CREATE STDINT H ------------------------------------- +AC_MSG_CHECKING([for stdint-types....]) +ac_stdint_h=`echo ifelse($1, , _stdint.h, $1)` +if test "$ac_stdint_h" = "stdint.h" ; then + AC_MSG_RESULT("(are you sure you want them in ./stdint.h?)") +elif test "$ac_stdint_h" = "inttypes.h" ; then + AC_MSG_RESULT("(are you sure you want them in ./inttypes.h?)") +else + AC_MSG_RESULT("(putting them into $ac_stdint_h)") +fi + +inttype_headers=`echo inttypes.h sys/inttypes.h sys/inttypes.h $2 \ +| sed -e 's/,/ /g'` + + ac_cv_header_stdint_x="no-file" + ac_cv_header_stdint_o="no-file" + ac_cv_header_stdint_u="no-file" + for i in stdint.h $inttype_headers ; do + unset ac_cv_type_uintptr_t + unset ac_cv_type_uint64_t + _AC_CHECK_TYPE_NEW(uintptr_t,[ac_cv_header_stdint_x=$i],dnl + continue,[#include <$i>]) + AC_CHECK_TYPE(uint64_t,[and64="(uint64_t too)"],[and64=""],[#include<$i>]) + AC_MSG_RESULT(... seen our uintptr_t in $i $and64) + break; + done + if test "$ac_cv_header_stdint_x" = "no-file" ; then + for i in stdint.h $inttype_headers ; do + unset ac_cv_type_uint32_t + unset ac_cv_type_uint64_t + AC_CHECK_TYPE(uint32_t,[ac_cv_header_stdint_o=$i],dnl + continue,[#include <$i>]) + AC_CHECK_TYPE(uint64_t,[and64="(uint64_t too)"],[and64=""],[#include<$i>]) + AC_MSG_RESULT(... seen our uint32_t in $i $and64) + break; + done + if test "$ac_cv_header_stdint_o" = "no-file" ; then + for i in sys/types.h $inttype_headers ; do + unset ac_cv_type_u_int32_t + unset ac_cv_type_u_int64_t + AC_CHECK_TYPE(u_int32_t,[ac_cv_header_stdint_u=$i],dnl + continue,[#include <$i>]) + AC_CHECK_TYPE(uint64_t,[and64="(u_int64_t too)"],[and64=""],[#include<$i>]) + AC_MSG_RESULT(... seen our u_int32_t in $i $and64) + break; + done + fi + fi + +# ----------------- DONE inttypes.h checks MAYBE C basic types -------- + +if test "$ac_cv_header_stdint_x" = "no-file" ; then + AC_COMPILE_CHECK_SIZEOF(char) + AC_COMPILE_CHECK_SIZEOF(short) + AC_COMPILE_CHECK_SIZEOF(int) + AC_COMPILE_CHECK_SIZEOF(long) + AC_COMPILE_CHECK_SIZEOF(void*) + ac_cv_header_stdint_test="yes" +else + ac_cv_header_stdint_test="no" +fi + +# ----------------- DONE inttypes.h checks START header ------------- +_ac_stdint_h=AS_TR_CPP(_$ac_stdint_h) +AC_MSG_RESULT(creating $ac_stdint_h : $_ac_stdint_h) +echo "#ifndef" $_ac_stdint_h >$ac_stdint_h +echo "#define" $_ac_stdint_h "1" >>$ac_stdint_h +echo "#ifndef" _GENERATED_STDINT_H >>$ac_stdint_h +echo "#define" _GENERATED_STDINT_H '"'$PACKAGE $VERSION'"' >>$ac_stdint_h +if test "$GCC" = "yes" ; then + echo "/* generated using a gnu compiler version" `$CC --version` "*/" \ + >>$ac_stdint_h +else + echo "/* generated using $CC */" >>$ac_stdint_h +fi +echo "" >>$ac_stdint_h + +if test "$ac_cv_header_stdint_x" != "no-file" ; then + ac_cv_header_stdint="$ac_cv_header_stdint_x" +elif test "$ac_cv_header_stdint_o" != "no-file" ; then + ac_cv_header_stdint="$ac_cv_header_stdint_o" +elif test "$ac_cv_header_stdint_u" != "no-file" ; then + ac_cv_header_stdint="$ac_cv_header_stdint_u" +else + ac_cv_header_stdint="stddef.h" +fi + +# ----------------- See if int_least and int_fast types are present +unset ac_cv_type_int_least32_t +unset ac_cv_type_int_fast32_t +AC_CHECK_TYPE(int_least32_t,,,[#include <$ac_cv_header_stdint>]) +AC_CHECK_TYPE(int_fast32_t,,,[#include<$ac_cv_header_stdint>]) + +if test "$ac_cv_header_stdint" != "stddef.h" ; then +if test "$ac_cv_header_stdint" != "stdint.h" ; then +AC_MSG_RESULT(..adding include stddef.h) + echo "#include <stddef.h>" >>$ac_stdint_h +fi ; fi +AC_MSG_RESULT(..adding include $ac_cv_header_stdint) + echo "#include <$ac_cv_header_stdint>" >>$ac_stdint_h +echo "" >>$ac_stdint_h + +# ----------------- DONE header START basic int types ------------- +if test "$ac_cv_header_stdint_x" = "no-file" ; then + AC_MSG_RESULT(... need to look at C basic types) +dnl ac_cv_header_stdint_test="yes" # moved up before creating the file +else + AC_MSG_RESULT(... seen good stdint.h inttypes) +dnl ac_cv_header_stdint_test="no" # moved up before creating the file +fi + +if test "$ac_cv_header_stdint_u" != "no-file" ; then + AC_MSG_RESULT(... seen bsd/sysv typedefs) + cat >>$ac_stdint_h <<EOF + +/* int8_t int16_t int32_t defined by inet code, redeclare the u_intXX types */ +typedef u_int8_t uint8_t; +typedef u_int16_t uint16_t; +typedef u_int32_t uint32_t; +EOF + cat >>$ac_stdint_h <<EOF + +/* glibc compatibility */ +#ifndef __int8_t_defined +#define __int8_t_defined +#endif +EOF +fi + +ac_cv_sizeof_x="$ac_cv_sizeof_char:$ac_cv_sizeof_short" +ac_cv_sizeof_X="$ac_cv_sizeof_x:$ac_cv_sizeof_int" +ac_cv_sizeof_X="$ac_cv_sizeof_X:$ac_cv_sizeof_voidp:$ac_cv_sizeof_long" +if test "$ac_cv_header_stdint" = "stddef.h" ; then +# we must guess all the basic types. Apart from byte-adressable system, +# there a few 32-bit-only dsp-systems. nibble-addressable systems are way off. + cat >>$ac_stdint_h <<EOF +/* ------------ BITSPECIFIC INTTYPES SECTION --------------- */ +EOF + t="typedefs for a" + case "$ac_cv_sizeof_X" in + 1:2:2:2:4) AC_MSG_RESULT(..adding $t normal 16-bit system) + cat >>$ac_stdint_h <<EOF +/* a normal 16-bit system */ +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned long uint32_t; +#ifndef __int8_t_defined +#define __int8_t_defined +typedef char int8_t; +typedef short int16_t; +typedef long int32_t; +#endif +EOF +;; + 1:2:2:4:4) AC_MSG_RESULT(..adding $t 32-bit system derived from a 16-bit) + cat >>$ac_stdint_h <<EOF +/* a 32-bit system derived from a 16-bit */ +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned int uint32_t; +#ifndef __int8_t_defined +#define __int8_t_defined +typedef char int8_t; +typedef short int16_t; +typedef int int32_t; +#endif +EOF +;; + 1:2:4:4:4) AC_MSG_RESULT(..adding $t normal 32-bit system) + cat >>$ac_stdint_h <<EOF +/* a normal 32-bit system */ +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned int uint32_t; +#ifndef __int8_t_defined +#define __int8_t_defined +typedef char int8_t; +typedef short int16_t; +typedef int int32_t; +#endif +EOF +;; + 1:2:4:4:8) AC_MSG_RESULT(..adding $t 32-bit system prepared for 64-bit) + cat >>$ac_stdint_h <<EOF + +/* a 32-bit system prepared for 64-bit */ +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned int uint32_t; +#ifndef __int8_t_defined +#define __int8_t_defined +typedef char int8_t; +typedef short int16_t; +typedef int int32_t; +#endif +EOF +;; + 1:2:4:8:8) AC_MSG_RESULT(..adding $t normal 64-bit system) + cat >>$ac_stdint_h <<EOF + +/* a normal 64-bit system */ +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned int uint32_t; +#ifndef __int8_t_defined +#define __int8_t_defined +typedef char int8_t; +typedef short int16_t; +typedef int int32_t; +#endif +EOF +;; + 1:2:4:8:4) AC_MSG_RESULT(..adding $t 64-bit system derived from a 32-bit) + cat >>$ac_stdint_h <<EOF + +/* a 64-bit system derived from a 32-bit system */ +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned int uint32_t; +#ifndef __int8_t_defined +#define __int8_t_defined +typedef char int8_t; +typedef short int16_t; +typedef int int32_t; +#endif +EOF +;; + *) + AC_MSG_ERROR([ $ac_cv_sizeof_X dnl + what is that a system? contact the author, quick! http://ac-archive.sf.net]) + exit 1 +;; + esac +fi + +# ------------- DONE basic int types START int64_t types ------------ +if test "$ac_cv_type_uint64_t" = "yes" +then AC_MSG_RESULT(... seen good uint64_t) + cat >>$ac_stdint_h <<EOF + +/* system headers have good uint64_t */ +#ifndef _HAVE_UINT64_T +#define _HAVE_UINT64_T +#endif +EOF + +elif test "$ac_cv_type_u_int64_t" = "yes" +then AC_MSG_RESULT(..adding typedef u_int64_t uint64_t) + cat >>$ac_stdint_h <<EOF + +/* system headers have an u_int64_t */ +#ifndef _HAVE_UINT64_T +#define _HAVE_UINT64_T +typedef u_int64_t uint64_t; +#endif +EOF +else AC_MSG_RESULT(..adding generic uint64_t runtime checks) + cat >>$ac_stdint_h <<EOF + +/* -------------------- 64 BIT GENERIC SECTION -------------------- */ +/* here are some common heuristics using compiler runtime specifics */ +#if defined __STDC_VERSION__ && defined __STDC_VERSION__ > 199901L + +#ifndef _HAVE_UINT64_T +#define _HAVE_UINT64_T +typedef long long int64_t; +typedef unsigned long long uint64_t; +#endif + +#elif !defined __STRICT_ANSI__ +#if defined _MSC_VER || defined __WATCOMC__ || defined __BORLANDC__ + +#ifndef _HAVE_UINT64_T +#define _HAVE_UINT64_T +typedef __int64 int64_t; +typedef unsigned __int64 uint64_t; +#endif + +#elif defined __GNUC__ || defined __MWERKS__ || defined __ELF__ +dnl /* note: all ELF-systems seem to have loff-support which needs 64-bit */ + +#if !defined _NO_LONGLONG +#ifndef _HAVE_UINT64_T +#define _HAVE_UINT64_T +typedef long long int64_t; +typedef unsigned long long uint64_t; +#endif +#endif + +#elif defined __alpha || (defined __mips && defined _ABIN32) + +#if !defined _NO_LONGLONG +#ifndef _HAVE_UINT64_T +#define _HAVE_UINT64_T +typedef long int64_t; +typedef unsigned long uint64_t; +#endif +#endif + /* compiler/cpu type ... or just ISO C99 */ +#endif +#endif +EOF + +# plus a default 64-bit for systems that are likely to be 64-bit ready + case "$ac_cv_sizeof_x:$ac_cv_sizeof_voidp:$ac_cv_sizeof_long" in + 1:2:8:8) AC_MSG_RESULT(..adding uint64_t default, normal 64-bit system) +cat >>$ac_stdint_h <<EOF +/* DEFAULT: */ +/* seen normal 64-bit system, CC has sizeof(long and void*) == 8 bytes */ +#ifndef _HAVE_UINT64_T +#define _HAVE_UINT64_T +typedef long int64_t; +typedef unsigned long uint64_t; +#endif +EOF +;; + 1:2:4:8) AC_MSG_RESULT(..adding uint64_t default, typedef to long) +cat >>$ac_stdint_h <<EOF +/* DEFAULT: */ +/* seen 32-bit system prepared for 64-bit, CC has sizeof(long) == 8 bytes */ +#ifndef _HAVE_UINT64_T +#define _HAVE_UINT64_T +typedef long int64_t; +typedef unsigned long uint64_t; +#endif +EOF +;; + 1:2:8:4) AC_MSG_RESULT(..adding uint64_t default, typedef long long) +cat >>$ac_stdint_h <<EOF +/* DEFAULT: */ +/* seen 64-bit derived from a 32-bit, CC has sizeof(long) == 4 bytes */ +#ifndef _HAVE_UINT64_T +#define _HAVE_UINT64_T +typedef long long int64_t; +typedef unsigned long long uint64_t; +#endif +EOF +;; + *) +cat >>$ac_stdint_h <<EOF +/* NOTE: */ +/* the configure-checks for the basic types did not make us believe */ +/* that we could add a fallback to a 'long long' typedef to int64_t */ +EOF + esac +fi + +# ------------- DONE int64_t types START intptr types ------------ +if test "$ac_cv_header_stdint_x" = "no-file" ; then + cat >>$ac_stdint_h <<EOF + +/* -------------------------- INPTR SECTION --------------------------- */ +EOF + case "$ac_cv_sizeof_x:$ac_cv_sizeof_voidp" in + 1:2:2) + a="int16_t" ; cat >>$ac_stdint_h <<EOF +/* we tested sizeof(void*) to be of 2 chars, hence we declare it 16-bit */ + +typedef uint16_t uintptr_t; +typedef int16_t intptr_t; +EOF +;; + 1:2:4) + a="int32_t" ; cat >>$ac_stdint_h <<EOF +/* we tested sizeof(void*) to be of 4 chars, hence we declare it 32-bit */ + +typedef uint32_t uintptr_t; +typedef int32_t intptr_t; +EOF +;; + 1:2:8) + a="int64_t" ; cat >>$ac_stdint_h <<EOF +/* we tested sizeof(void*) to be of 8 chars, hence we declare it 64-bit */ + +typedef uint64_t uintptr_t; +typedef int64_t intptr_t; +EOF +;; + *) + a="long" ; cat >>$ac_stdint_h <<EOF +/* we tested sizeof(void*) but got no guess, hence we declare it as if long */ + +typedef unsigned long uintptr_t; +typedef long intptr_t; +EOF +;; + esac +AC_MSG_RESULT(..adding typedef $a intptr_t) +fi + +# ------------- DONE intptr types START int_least types ------------ +if test "$ac_cv_type_int_least32_t" = "no"; then +AC_MSG_RESULT(..adding generic int_least-types) + cat >>$ac_stdint_h <<EOF + +/* --------------GENERIC INT_LEAST ------------------ */ + +typedef int8_t int_least8_t; +typedef int16_t int_least16_t; +typedef int32_t int_least32_t; +#ifdef _HAVE_INT64_T +typedef int64_t int_least64_t; +#endif + +typedef uint8_t uint_least8_t; +typedef uint16_t uint_least16_t; +typedef uint32_t uint_least32_t; +#ifdef _HAVE_INT64_T +typedef uint64_t uint_least64_t; +#endif +EOF +fi + +# ------------- DONE intptr types START int_least types ------------ +if test "$ac_cv_type_int_fast32_t" = "no"; then +AC_MSG_RESULT(..adding generic int_fast-types) + cat >>$ac_stdint_h <<EOF + +/* --------------GENERIC INT_FAST ------------------ */ + +typedef int8_t int_fast8_t; +typedef int32_t int_fast16_t; +typedef int32_t int_fast32_t; +#ifdef _HAVE_INT64_T +typedef int64_t int_fast64_t; +#endif + +typedef uint8_t uint_fast8_t; +typedef uint32_t uint_fast16_t; +typedef uint32_t uint_fast32_t; +#ifdef _HAVE_INT64_T +typedef uint64_t uint_fast64_t; +#endif +EOF +fi + +if test "$ac_cv_header_stdint_x" = "no-file" ; then + cat >>$ac_stdint_h <<EOF + +#ifdef _HAVE_INT64_T +typedef int64_t intmax_t; +typedef uint64_t uintmax_t; +#else +typedef long int intmax_t; +typedef unsigned long uintmax_t; +#endif +EOF +fi + +AC_MSG_RESULT(... DONE $ac_stdint_h) + cat >>$ac_stdint_h <<EOF + + /* once */ +#endif +#endif +EOF +]) + +dnl quote from SunOS-5.8 sys/inttypes.h: +dnl Use at your own risk. As of February 1996, the committee is squarely +dnl behind the fixed sized types; the "least" and "fast" types are still being +dnl discussed. The probability that the "fast" types may be removed before +dnl the standard is finalized is high enough that they are not currently +dnl implemented. + + + +# Do all the work for Automake. This macro actually does too much -- +# some checks are only needed if your package does certain things. +# But this isn't really a big deal. + +# serial 5 + +# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be +# written in clear, in which case automake, when reading aclocal.m4, +# will think it sees a *use*, and therefore will trigger all it's +# C support machinery. Also note that it means that autoscan, seeing +# CC etc. in the Makefile, will ask for an AC_PROG_CC use... + + +# We require 2.13 because we rely on SHELL being computed by configure. +AC_PREREQ([2.13]) + +# AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED) +# ----------------------------------------------------------- +# If MACRO-NAME is provided do IF-PROVIDED, else IF-NOT-PROVIDED. +# The purpose of this macro is to provide the user with a means to +# check macros which are provided without letting her know how the +# information is coded. +# If this macro is not defined by Autoconf, define it here. +ifdef([AC_PROVIDE_IFELSE], + [], + [define([AC_PROVIDE_IFELSE], + [ifdef([AC_PROVIDE_$1], + [$2], [$3])])]) + + +# AM_INIT_AUTOMAKE(PACKAGE,VERSION, [NO-DEFINE]) +# ---------------------------------------------- +AC_DEFUN([AM_INIT_AUTOMAKE], +[AC_REQUIRE([AC_PROG_INSTALL])dnl +# test to see if srcdir already configured +if test "`CDPATH=:; cd $srcdir && pwd`" != "`pwd`" && + test -f $srcdir/config.status; then + AC_MSG_ERROR([source directory already configured; run \"make distclean\" there first]) +fi + +# Define the identity of the package. +PACKAGE=$1 +AC_SUBST(PACKAGE)dnl +VERSION=$2 +AC_SUBST(VERSION)dnl +ifelse([$3],, +[AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package]) +AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])]) + +# Autoconf 2.50 wants to disallow AM_ names. We explicitly allow +# the ones we care about. +ifdef([m4_pattern_allow], + [m4_pattern_allow([^AM_[A-Z]+FLAGS])])dnl + +# Autoconf 2.50 always computes EXEEXT. However we need to be +# compatible with 2.13, for now. So we always define EXEEXT, but we +# don't compute it. +AC_SUBST(EXEEXT) +# Similar for OBJEXT -- only we only use OBJEXT if the user actually +# requests that it be used. This is a bit dumb. +: ${OBJEXT=o} +AC_SUBST(OBJEXT) + +# Some tools Automake needs. +AC_REQUIRE([AM_SANITY_CHECK])dnl +AC_REQUIRE([AC_ARG_PROGRAM])dnl +AM_MISSING_PROG(ACLOCAL, aclocal) +AM_MISSING_PROG(AUTOCONF, autoconf) +AM_MISSING_PROG(AUTOMAKE, automake) +AM_MISSING_PROG(AUTOHEADER, autoheader) +AM_MISSING_PROG(MAKEINFO, makeinfo) +AM_MISSING_PROG(AMTAR, tar) +AM_PROG_INSTALL_SH +AM_PROG_INSTALL_STRIP +# We need awk for the "check" target. The system "awk" is bad on +# some platforms. +AC_REQUIRE([AC_PROG_AWK])dnl +AC_REQUIRE([AC_PROG_MAKE_SET])dnl +AC_REQUIRE([AM_DEP_TRACK])dnl +AC_REQUIRE([AM_SET_DEPDIR])dnl +AC_PROVIDE_IFELSE([AC_PROG_][CC], + [_AM_DEPENDENCIES(CC)], + [define([AC_PROG_][CC], + defn([AC_PROG_][CC])[_AM_DEPENDENCIES(CC)])])dnl +AC_PROVIDE_IFELSE([AC_PROG_][CXX], + [_AM_DEPENDENCIES(CXX)], + [define([AC_PROG_][CXX], + defn([AC_PROG_][CXX])[_AM_DEPENDENCIES(CXX)])])dnl +]) + +# +# Check to make sure that the build environment is sane. +# + +# serial 3 + +# AM_SANITY_CHECK +# --------------- +AC_DEFUN([AM_SANITY_CHECK], +[AC_MSG_CHECKING([whether build environment is sane]) +# Just in case +sleep 1 +echo timestamp > conftest.file +# Do `set' in a subshell so we don't clobber the current shell's +# arguments. Must try -L first in case configure is actually a +# symlink; some systems play weird games with the mod time of symlinks +# (eg FreeBSD returns the mod time of the symlink's containing +# directory). +if ( + set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null` + if test "$[*]" = "X"; then + # -L didn't work. + set X `ls -t $srcdir/configure conftest.file` + fi + rm -f conftest.file + if test "$[*]" != "X $srcdir/configure conftest.file" \ + && test "$[*]" != "X conftest.file $srcdir/configure"; then + + # If neither matched, then we have a broken ls. This can happen + # if, for instance, CONFIG_SHELL is bash and it inherits a + # broken ls alias from the environment. This has actually + # happened. Such a system could not be considered "sane". + AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken +alias in your environment]) + fi + + test "$[2]" = conftest.file + ) +then + # Ok. + : +else + AC_MSG_ERROR([newly created file is older than distributed files! +Check your system clock]) +fi +AC_MSG_RESULT(yes)]) + + +# serial 2 + +# AM_MISSING_PROG(NAME, PROGRAM) +# ------------------------------ +AC_DEFUN([AM_MISSING_PROG], +[AC_REQUIRE([AM_MISSING_HAS_RUN]) +$1=${$1-"${am_missing_run}$2"} +AC_SUBST($1)]) + + +# AM_MISSING_HAS_RUN +# ------------------ +# Define MISSING if not defined so far and test if it supports --run. +# If it does, set am_missing_run to use it, otherwise, to nothing. +AC_DEFUN([AM_MISSING_HAS_RUN], +[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl +test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing" +# Use eval to expand $SHELL +if eval "$MISSING --run true"; then + am_missing_run="$MISSING --run " +else + am_missing_run= + am_backtick='`' + AC_MSG_WARN([${am_backtick}missing' script is too old or missing]) +fi +]) + +# AM_AUX_DIR_EXPAND + +# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets +# $ac_aux_dir to `$srcdir/foo'. 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