From ea1362a9367f78f59dbeafd7fbaaaf633f0bbc6a Mon Sep 17 00:00:00 2001 From: Yang Tse Date: Wed, 10 Sep 2008 17:33:15 +0000 Subject: improve detection of gmtime_r() and strtoll() --- m4/curl-functions.m4 | 273 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 273 insertions(+) create mode 100644 m4/curl-functions.m4 (limited to 'm4') diff --git a/m4/curl-functions.m4 b/m4/curl-functions.m4 new file mode 100644 index 000000000..abe52a0cd --- /dev/null +++ b/m4/curl-functions.m4 @@ -0,0 +1,273 @@ +#*************************************************************************** +# _ _ ____ _ +# Project ___| | | | _ \| | +# / __| | | | |_) | | +# | (__| |_| | _ <| |___ +# \___|\___/|_| \_\_____| +# +# Copyright (C) 1998 - 2008, Daniel Stenberg, , 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 +#endif +#ifdef HAVE_STDLIB_H +# include +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h stdlib.h, + [], [], [$curl_includes_stdlib]) +]) + + +dnl CURL_INCLUDES_TIME +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when time.h is to be included. + +AC_DEFUN([CURL_INCLUDES_TIME], [ +AC_REQUIRE([AC_HEADER_TIME])dnl +curl_includes_time="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include +#endif +#ifdef HAVE_SYS_TIME_H +# include +# ifdef TIME_WITH_SYS_TIME +# include +# endif +#else +# ifdef HAVE_TIME_H +# include +# endif +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h sys/time.h time.h, + [], [], [$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 +]) + + -- cgit v1.2.3