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improve detection of gmtime_r() and strtoll()

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This commit is contained in:
Yang Tse 2008-09-10 17:33:15 +00:00
parent f62a5b83a9
commit ea1362a936
2 changed files with 276 additions and 42 deletions
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45
configure.ac
View File

@ -1881,47 +1881,6 @@ if test "x$RECENTAIX" = "xyes"; then
checkfor_gmtime_r="yes"
fi
if test x$cross_compiling != xyes; then
if test x$checkfor_gmtime_r = xyes; then
dnl if gmtime_r was found, verify that it actually works, as (at least) HPUX
dnl 10.20 is known to have a buggy one. If it doesn't work, disable use of
dnl it.
AC_MSG_CHECKING([if gmtime_r exists and works])
AC_RUN_IFELSE([[
#include <time.h>
int main(void)
{
time_t local = 1170352587;
struct tm *gmt;
struct tm keeper;
putenv("TZ=CST6CDT");
tzset();
gmt = gmtime_r(&local, &keeper);
if(gmt) {
return 0;
}
return 1; /* failure */
}
]],
dnl success, do nothing
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GMTIME_R, 1, [if you have (a working) gmtime_r])
,
dnl failure, now disable the function
AC_MSG_RESULT(no)
,
dnl not invoked when crosscompiling)
echo "hej"
)
fi
else
dnl and for crosscompiling
AC_CHECK_FUNCS(gmtime_r)
fi
dnl **********************************************************************
dnl Back to "normal" configuring
@ -2075,6 +2034,9 @@ CURL_CHECK_FUNC_RECVFROM
CURL_CHECK_FUNC_SEND
CURL_CHECK_MSG_NOSIGNAL
CURL_CHECK_FUNC_GMTIME_R
CURL_CHECK_FUNC_STRTOLL
dnl Checks for library functions.
dnl AC_PROG_GCC_TRADITIONAL
@ -2121,7 +2083,6 @@ AC_CHECK_FUNCS([basename \
strlcat \
strstr \
strtok_r \
strtoll \
uname \
utime
],[

273
m4/curl-functions.m4 Normal file
View File

@ -0,0 +1,273 @@
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at http://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# $Id$
#***************************************************************************
# File version for 'aclocal' use. Keep it a single number.
# serial 1
dnl CURL_INCLUDES_STDLIB
dnl -------------------------------------------------
dnl Set up variable with list of headers that must be
dnl included when stdlib.h is to be included.
AC_DEFUN([CURL_INCLUDES_STDLIB], [
curl_includes_stdlib="\
/* includes start */
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif
/* includes end */"
AC_CHECK_HEADERS(
sys/types.h stdlib.h,
[], [], [$curl_includes_stdlib])
])
dnl CURL_INCLUDES_TIME
dnl -------------------------------------------------
dnl Set up variable with list of headers that must be
dnl included when time.h is to be included.
AC_DEFUN([CURL_INCLUDES_TIME], [
AC_REQUIRE([AC_HEADER_TIME])dnl
curl_includes_time="\
/* includes start */
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
# ifdef TIME_WITH_SYS_TIME
# include <time.h>
# endif
#else
# ifdef HAVE_TIME_H
# include <time.h>
# endif
#endif
/* includes end */"
AC_CHECK_HEADERS(
sys/types.h sys/time.h time.h,
[], [], [$curl_includes_time])
])
dnl CURL_CHECK_FUNC_GMTIME_R
dnl -------------------------------------------------
dnl Verify if gmtime_r is available, prototyped, can
dnl be compiled and seems to work. If all of these are
dnl true, and usage has not been previously disallowed
dnl with shell variable curl_disallow_gmtime_r, then
dnl HAVE_GMTIME_R will be defined.
AC_DEFUN([CURL_CHECK_FUNC_GMTIME_R], [
AC_REQUIRE([CURL_INCLUDES_TIME])dnl
#
tst_links_gmtime_r="unknown"
tst_proto_gmtime_r="unknown"
tst_compi_gmtime_r="unknown"
tst_works_gmtime_r="unknown"
tst_allow_gmtime_r="unknown"
#
AC_MSG_CHECKING([if gmtime_r can be linked])
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([gmtime_r])
],[
AC_MSG_RESULT([yes])
tst_links_gmtime_r="yes"
],[
AC_MSG_RESULT([no])
tst_links_gmtime_r="no"
])
#
if test "$tst_links_gmtime_r" = "yes"; then
AC_MSG_CHECKING([if gmtime_r is prototyped])
AC_EGREP_CPP([gmtime_r],[
$curl_includes_time
],[
AC_MSG_RESULT([yes])
tst_proto_gmtime_r="yes"
],[
AC_MSG_RESULT([no])
tst_proto_gmtime_r="no"
])
fi
#
if test "$tst_proto_gmtime_r" = "yes"; then
AC_MSG_CHECKING([if gmtime_r is compilable])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$curl_includes_time
]],[[
gmtime_r(0, 0);
]])
],[
AC_MSG_RESULT([yes])
tst_compi_gmtime_r="yes"
],[
AC_MSG_RESULT([no])
tst_compi_gmtime_r="no"
])
fi
#
dnl only do runtime verification when not cross-compiling
if test "x$cross_compiling" != "xyes" &&
test "$tst_compi_gmtime_r" = "yes"; then
AC_MSG_CHECKING([if gmtime_r seems to work])
AC_RUN_IFELSE([
AC_LANG_PROGRAM([[
$curl_includes_time
]],[[
time_t local = 1170352587;
struct tm *gmt = 0;
struct tm result;
gmt = gmtime_r(&local, &result);
if(gmt)
exit(0);
else
exit(1);
]])
],[
AC_MSG_RESULT([yes])
tst_works_gmtime_r="yes"
],[
AC_MSG_RESULT([no])
tst_works_gmtime_r="no"
])
fi
#
if test "$tst_works_gmtime_r" != "no"; then
AC_MSG_CHECKING([if gmtime_r usage allowed])
if test "x$curl_disallow_gmtime_r" != "xyes"; then
AC_MSG_RESULT([yes])
tst_allow_gmtime_r="yes"
else
AC_MSG_RESULT([no])
tst_allow_gmtime_r="no"
fi
fi
#
AC_MSG_CHECKING([if gmtime_r might be used])
if test "$tst_links_gmtime_r" = "yes" &&
test "$tst_proto_gmtime_r" = "yes" &&
test "$tst_compi_gmtime_r" = "yes" &&
test "$tst_allow_gmtime_r" = "yes" &&
test "$tst_works_gmtime_r" != "no"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(HAVE_GMTIME_R, 1,
[Define to 1 if you have a working gmtime_r function.])
ac_cv_func_gmtime_r="yes"
else
AC_MSG_RESULT([no])
ac_cv_func_gmtime_r="no"
fi
])
dnl CURL_CHECK_FUNC_STRTOLL
dnl -------------------------------------------------
dnl Verify if strtoll is available, prototyped, and
dnl can be compiled. If all of these are true, and
dnl usage has not been previously disallowed with
dnl shell variable curl_disallow_strtoll, then
dnl HAVE_STRTOLL will be defined.
AC_DEFUN([CURL_CHECK_FUNC_STRTOLL], [
AC_REQUIRE([CURL_INCLUDES_STDLIB])dnl
#
tst_links_strtoll="unknown"
tst_proto_strtoll="unknown"
tst_compi_strtoll="unknown"
tst_allow_strtoll="unknown"
#
AC_MSG_CHECKING([if strtoll can be linked])
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([strtoll])
],[
AC_MSG_RESULT([yes])
tst_links_strtoll="yes"
],[
AC_MSG_RESULT([no])
tst_links_strtoll="no"
])
#
if test "$tst_links_strtoll" = "yes"; then
AC_MSG_CHECKING([if strtoll is prototyped])
AC_EGREP_CPP([strtoll],[
$curl_includes_stdlib
],[
AC_MSG_RESULT([yes])
tst_proto_strtoll="yes"
],[
AC_MSG_RESULT([no])
tst_proto_strtoll="no"
])
fi
#
if test "$tst_proto_strtoll" = "yes"; then
AC_MSG_CHECKING([if strtoll is compilable])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$curl_includes_stdlib
]],[[
strtoll(0, 0, 0);
]])
],[
AC_MSG_RESULT([yes])
tst_compi_strtoll="yes"
],[
AC_MSG_RESULT([no])
tst_compi_strtoll="no"
])
fi
#
if test "$tst_compi_strtoll" = "yes"; then
AC_MSG_CHECKING([if strtoll usage allowed])
if test "x$curl_disallow_strtoll" != "xyes"; then
AC_MSG_RESULT([yes])
tst_allow_strtoll="yes"
else
AC_MSG_RESULT([no])
tst_allow_strtoll="no"
fi
fi
#
AC_MSG_CHECKING([if strtoll might be used])
if test "$tst_links_strtoll" = "yes" &&
test "$tst_proto_strtoll" = "yes" &&
test "$tst_compi_strtoll" = "yes" &&
test "$tst_allow_strtoll" = "yes"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(HAVE_STRTOLL, 1,
[Define to 1 if you have the strtoll function.])
ac_cv_func_strtoll="yes"
else
AC_MSG_RESULT([no])
ac_cv_func_strtoll="no"
fi
])