mirror of
https://github.com/curl/curl.git
synced 2024-12-27 06:59:43 +08:00
5a053ffe80
This commit renames lib/setup.h to lib/curl_setup.h and
renames lib/setup_once.h to lib/curl_setup_once.h.
Removes the need and usage of a header inclusion guard foreign
to libcurl. [1]
Removes the need and presence of an alarming notice we carried
in old setup_once.h [2]
----------------------------------------
1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard
up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H,
this single inclusion guard is enough to ensure that inclusion of
lib/setup_once.h done from lib/setup.h is only done once.
Additionally lib/setup.h has always used __SETUP_ONCE_H macro to
protect inclusion of setup_once.h even after commit ec691ca3, this
was to avoid a circular header inclusion triggered when building a
c-ares enabled version with c-ares sources available which also has
a setup_once.h header. Commit ec691ca3 exposes the real nature of
__SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard
foreign to libcurl belonging to c-ares's setup_once.h
The renaming this commit does, fixes the circular header inclusion,
and as such removes the need and usage of a header inclusion guard
foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl.
2 - Due to the circular interdependency of old lib/setup_once.h and the
c-ares setup_once.h header, old file lib/setup_once.h has carried
back from 2006 up to now days an alarming and prominent notice about
the need of keeping libcurl's and c-ares's setup_once.h in sync.
Given that this commit fixes the circular interdependency, the need
and presence of mentioned notice is removed.
All mentioned interdependencies come back from now old days when
the c-ares project lived inside a curl subdirectory. This commit
removes last traces of such fact.
618 lines
16 KiB
Plaintext
618 lines
16 KiB
Plaintext
#***************************************************************************
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# _ _ ____ _
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# Project ___| | | | _ \| |
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# / __| | | | |_) | |
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# | (__| |_| | _ <| |___
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# \___|\___/|_| \_\_____|
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#
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# Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
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#
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# This software is licensed as described in the file COPYING, which
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# you should have received as part of this distribution. The terms
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# are also available at http://curl.haxx.se/docs/copyright.html.
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#
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# You may opt to use, copy, modify, merge, publish, distribute and/or sell
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# copies of the Software, and permit persons to whom the Software is
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# furnished to do so, under the terms of the COPYING file.
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#
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# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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# KIND, either express or implied.
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#
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#***************************************************************************
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# File version for 'aclocal' use. Keep it a single number.
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# serial 10
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dnl Note 1
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dnl ------
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dnl None of the CURL_CHECK_NEED_REENTRANT_* macros shall use HAVE_FOO_H to
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dnl conditionally include header files. These macros are used early in the
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dnl configure process much before header file availability is known.
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dnl CURL_CHECK_NEED_REENTRANT_ERRNO
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes errno available as a preprocessor macro.
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AC_DEFUN([CURL_CHECK_NEED_REENTRANT_ERRNO], [
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#include <errno.h>
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]],[[
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if(0 != errno)
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return 1;
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]])
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],[
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tmp_errno="yes"
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],[
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tmp_errno="no"
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])
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if test "$tmp_errno" = "yes"; then
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#include <errno.h>
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]],[[
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#ifdef errno
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int dummy=1;
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#else
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force compilation error
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#endif
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]])
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],[
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tmp_errno="errno_macro_defined"
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],[
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#define _REENTRANT
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#include <errno.h>
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]],[[
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#ifdef errno
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int dummy=1;
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#else
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force compilation error
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#endif
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]])
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],[
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tmp_errno="errno_macro_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CURL_CHECK_NEED_REENTRANT_GMTIME_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function gmtime_r compiler visible.
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AC_DEFUN([CURL_CHECK_NEED_REENTRANT_GMTIME_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([gmtime_r])
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],[
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tmp_gmtime_r="yes"
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],[
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tmp_gmtime_r="no"
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])
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if test "$tmp_gmtime_r" = "yes"; then
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AC_EGREP_CPP([gmtime_r],[
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#include <sys/types.h>
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#include <time.h>
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],[
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tmp_gmtime_r="proto_declared"
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],[
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AC_EGREP_CPP([gmtime_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <time.h>
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],[
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tmp_gmtime_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CURL_CHECK_NEED_REENTRANT_LOCALTIME_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function localtime_r compiler visible.
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AC_DEFUN([CURL_CHECK_NEED_REENTRANT_LOCALTIME_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([localtime_r])
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],[
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tmp_localtime_r="yes"
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],[
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tmp_localtime_r="no"
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])
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if test "$tmp_localtime_r" = "yes"; then
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AC_EGREP_CPP([localtime_r],[
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#include <sys/types.h>
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#include <time.h>
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],[
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tmp_localtime_r="proto_declared"
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],[
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AC_EGREP_CPP([localtime_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <time.h>
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],[
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tmp_localtime_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CURL_CHECK_NEED_REENTRANT_STRERROR_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function strerror_r compiler visible.
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AC_DEFUN([CURL_CHECK_NEED_REENTRANT_STRERROR_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([strerror_r])
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],[
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tmp_strerror_r="yes"
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],[
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tmp_strerror_r="no"
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])
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if test "$tmp_strerror_r" = "yes"; then
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AC_EGREP_CPP([strerror_r],[
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#include <sys/types.h>
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#include <string.h>
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],[
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tmp_strerror_r="proto_declared"
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],[
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AC_EGREP_CPP([strerror_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <string.h>
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],[
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tmp_strerror_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CURL_CHECK_NEED_REENTRANT_STRTOK_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function strtok_r compiler visible.
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AC_DEFUN([CURL_CHECK_NEED_REENTRANT_STRTOK_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([strtok_r])
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],[
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tmp_strtok_r="yes"
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],[
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tmp_strtok_r="no"
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])
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if test "$tmp_strtok_r" = "yes"; then
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AC_EGREP_CPP([strtok_r],[
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#include <sys/types.h>
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#include <string.h>
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],[
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tmp_strtok_r="proto_declared"
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],[
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AC_EGREP_CPP([strtok_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <string.h>
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],[
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tmp_strtok_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CURL_CHECK_NEED_REENTRANT_INET_NTOA_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function inet_ntoa_r compiler visible.
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AC_DEFUN([CURL_CHECK_NEED_REENTRANT_INET_NTOA_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([inet_ntoa_r])
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],[
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tmp_inet_ntoa_r="yes"
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],[
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tmp_inet_ntoa_r="no"
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])
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if test "$tmp_inet_ntoa_r" = "yes"; then
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AC_EGREP_CPP([inet_ntoa_r],[
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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],[
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tmp_inet_ntoa_r="proto_declared"
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],[
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AC_EGREP_CPP([inet_ntoa_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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],[
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tmp_inet_ntoa_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CURL_CHECK_NEED_REENTRANT_GETHOSTBYADDR_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function gethostbyaddr_r compiler visible.
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AC_DEFUN([CURL_CHECK_NEED_REENTRANT_GETHOSTBYADDR_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([gethostbyaddr_r])
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],[
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tmp_gethostbyaddr_r="yes"
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],[
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tmp_gethostbyaddr_r="no"
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])
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if test "$tmp_gethostbyaddr_r" = "yes"; then
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AC_EGREP_CPP([gethostbyaddr_r],[
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_gethostbyaddr_r="proto_declared"
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],[
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AC_EGREP_CPP([gethostbyaddr_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_gethostbyaddr_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CURL_CHECK_NEED_REENTRANT_GETHOSTBYNAME_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function gethostbyname_r compiler visible.
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AC_DEFUN([CURL_CHECK_NEED_REENTRANT_GETHOSTBYNAME_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([gethostbyname_r])
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],[
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tmp_gethostbyname_r="yes"
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],[
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tmp_gethostbyname_r="no"
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])
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if test "$tmp_gethostbyname_r" = "yes"; then
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AC_EGREP_CPP([gethostbyname_r],[
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_gethostbyname_r="proto_declared"
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],[
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AC_EGREP_CPP([gethostbyname_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_gethostbyname_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CURL_CHECK_NEED_REENTRANT_GETPROTOBYNAME_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function getprotobyname_r compiler visible.
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AC_DEFUN([CURL_CHECK_NEED_REENTRANT_GETPROTOBYNAME_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([getprotobyname_r])
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],[
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tmp_getprotobyname_r="yes"
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],[
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tmp_getprotobyname_r="no"
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])
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if test "$tmp_getprotobyname_r" = "yes"; then
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AC_EGREP_CPP([getprotobyname_r],[
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_getprotobyname_r="proto_declared"
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],[
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AC_EGREP_CPP([getprotobyname_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_getprotobyname_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CURL_CHECK_NEED_REENTRANT_GETSERVBYPORT_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function getservbyport_r compiler visible.
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AC_DEFUN([CURL_CHECK_NEED_REENTRANT_GETSERVBYPORT_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([getservbyport_r])
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],[
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tmp_getservbyport_r="yes"
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],[
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tmp_getservbyport_r="no"
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])
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if test "$tmp_getservbyport_r" = "yes"; then
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AC_EGREP_CPP([getservbyport_r],[
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_getservbyport_r="proto_declared"
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],[
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AC_EGREP_CPP([getservbyport_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_getservbyport_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CURL_CHECK_NEED_REENTRANT_FUNCTIONS_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes several _r functions compiler visible.
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dnl Internal macro for CURL_CONFIGURE_REENTRANT.
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AC_DEFUN([CURL_CHECK_NEED_REENTRANT_FUNCTIONS_R], [
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if test "$tmp_need_reentrant" = "no"; then
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CURL_CHECK_NEED_REENTRANT_GMTIME_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CURL_CHECK_NEED_REENTRANT_LOCALTIME_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CURL_CHECK_NEED_REENTRANT_STRERROR_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CURL_CHECK_NEED_REENTRANT_STRTOK_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CURL_CHECK_NEED_REENTRANT_INET_NTOA_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CURL_CHECK_NEED_REENTRANT_GETHOSTBYADDR_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CURL_CHECK_NEED_REENTRANT_GETHOSTBYNAME_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CURL_CHECK_NEED_REENTRANT_GETPROTOBYNAME_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CURL_CHECK_NEED_REENTRANT_GETSERVBYPORT_R
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fi
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])
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dnl CURL_CHECK_NEED_REENTRANT_SYSTEM
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl must be unconditionally done for this platform.
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dnl Internal macro for CURL_CONFIGURE_REENTRANT.
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AC_DEFUN([CURL_CHECK_NEED_REENTRANT_SYSTEM], [
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case $host_os in
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solaris*)
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tmp_need_reentrant="yes"
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;;
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*)
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tmp_need_reentrant="no"
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;;
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esac
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])
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dnl CURL_CHECK_NEED_THREAD_SAFE_SYSTEM
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _THREAD_SAFE definition
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dnl must be unconditionally done for this platform.
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dnl Internal macro for CURL_CONFIGURE_THREAD_SAFE.
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AC_DEFUN([CURL_CHECK_NEED_THREAD_SAFE_SYSTEM], [
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case $host_os in
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aix[[123]].* | aix4.[[012]].*)
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dnl aix 4.2 and older
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tmp_need_thread_safe="no"
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;;
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aix*)
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dnl AIX 4.3 and newer
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|
tmp_need_thread_safe="yes"
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;;
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*)
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tmp_need_thread_safe="no"
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;;
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esac
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])
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|
|
|
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dnl CURL_CONFIGURE_FROM_NOW_ON_WITH_REENTRANT
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|
dnl -------------------------------------------------
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|
dnl This macro ensures that configuration tests done
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|
dnl after this will execute with preprocessor symbol
|
|
dnl _REENTRANT defined. This macro also ensures that
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dnl the generated config file defines NEED_REENTRANT
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dnl and that in turn curl_setup.h will define _REENTRANT.
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dnl Internal macro for CURL_CONFIGURE_REENTRANT.
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|
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AC_DEFUN([CURL_CONFIGURE_FROM_NOW_ON_WITH_REENTRANT], [
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AC_DEFINE(NEED_REENTRANT, 1,
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|
[Define to 1 if _REENTRANT preprocessor symbol must be defined.])
|
|
cat >>confdefs.h <<_EOF
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|
#ifndef _REENTRANT
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# define _REENTRANT
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|
#endif
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_EOF
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])
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|
|
|
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dnl CURL_CONFIGURE_FROM_NOW_ON_WITH_THREAD_SAFE
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|
dnl -------------------------------------------------
|
|
dnl This macro ensures that configuration tests done
|
|
dnl after this will execute with preprocessor symbol
|
|
dnl _THREAD_SAFE defined. This macro also ensures that
|
|
dnl the generated config file defines NEED_THREAD_SAFE
|
|
dnl and that in turn curl_setup.h will define _THREAD_SAFE.
|
|
dnl Internal macro for CURL_CONFIGURE_THREAD_SAFE.
|
|
|
|
AC_DEFUN([CURL_CONFIGURE_FROM_NOW_ON_WITH_THREAD_SAFE], [
|
|
AC_DEFINE(NEED_THREAD_SAFE, 1,
|
|
[Define to 1 if _THREAD_SAFE preprocessor symbol must be defined.])
|
|
cat >>confdefs.h <<_EOF
|
|
#ifndef _THREAD_SAFE
|
|
# define _THREAD_SAFE
|
|
#endif
|
|
_EOF
|
|
])
|
|
|
|
|
|
dnl CURL_CONFIGURE_REENTRANT
|
|
dnl -------------------------------------------------
|
|
dnl This first checks if the preprocessor _REENTRANT
|
|
dnl symbol is already defined. If it isn't currently
|
|
dnl defined a set of checks are performed to verify
|
|
dnl if its definition is required to make visible to
|
|
dnl the compiler a set of *_r functions. Finally, if
|
|
dnl _REENTRANT is already defined or needed it takes
|
|
dnl care of making adjustments necessary to ensure
|
|
dnl that it is defined equally for further configure
|
|
dnl tests and generated config file.
|
|
|
|
AC_DEFUN([CURL_CONFIGURE_REENTRANT], [
|
|
AC_PREREQ([2.50])dnl
|
|
#
|
|
AC_MSG_CHECKING([if _REENTRANT is already defined])
|
|
AC_COMPILE_IFELSE([
|
|
AC_LANG_PROGRAM([[
|
|
]],[[
|
|
#ifdef _REENTRANT
|
|
int dummy=1;
|
|
#else
|
|
force compilation error
|
|
#endif
|
|
]])
|
|
],[
|
|
AC_MSG_RESULT([yes])
|
|
tmp_reentrant_initially_defined="yes"
|
|
],[
|
|
AC_MSG_RESULT([no])
|
|
tmp_reentrant_initially_defined="no"
|
|
])
|
|
#
|
|
if test "$tmp_reentrant_initially_defined" = "no"; then
|
|
AC_MSG_CHECKING([if _REENTRANT is actually needed])
|
|
CURL_CHECK_NEED_REENTRANT_SYSTEM
|
|
if test "$tmp_need_reentrant" = "no"; then
|
|
CURL_CHECK_NEED_REENTRANT_ERRNO
|
|
fi
|
|
if test "$tmp_need_reentrant" = "no"; then
|
|
CURL_CHECK_NEED_REENTRANT_FUNCTIONS_R
|
|
fi
|
|
if test "$tmp_need_reentrant" = "yes"; then
|
|
AC_MSG_RESULT([yes])
|
|
else
|
|
AC_MSG_RESULT([no])
|
|
fi
|
|
fi
|
|
#
|
|
AC_MSG_CHECKING([if _REENTRANT is onwards defined])
|
|
if test "$tmp_reentrant_initially_defined" = "yes" ||
|
|
test "$tmp_need_reentrant" = "yes"; then
|
|
CURL_CONFIGURE_FROM_NOW_ON_WITH_REENTRANT
|
|
AC_MSG_RESULT([yes])
|
|
else
|
|
AC_MSG_RESULT([no])
|
|
fi
|
|
#
|
|
])
|
|
|
|
|
|
dnl CURL_CONFIGURE_THREAD_SAFE
|
|
dnl -------------------------------------------------
|
|
dnl This first checks if the preprocessor _THREAD_SAFE
|
|
dnl symbol is already defined. If it isn't currently
|
|
dnl defined a set of checks are performed to verify
|
|
dnl if its definition is required. Finally, if
|
|
dnl _THREAD_SAFE is already defined or needed it takes
|
|
dnl care of making adjustments necessary to ensure
|
|
dnl that it is defined equally for further configure
|
|
dnl tests and generated config file.
|
|
|
|
AC_DEFUN([CURL_CONFIGURE_THREAD_SAFE], [
|
|
AC_PREREQ([2.50])dnl
|
|
#
|
|
AC_MSG_CHECKING([if _THREAD_SAFE is already defined])
|
|
AC_COMPILE_IFELSE([
|
|
AC_LANG_PROGRAM([[
|
|
]],[[
|
|
#ifdef _THREAD_SAFE
|
|
int dummy=1;
|
|
#else
|
|
force compilation error
|
|
#endif
|
|
]])
|
|
],[
|
|
AC_MSG_RESULT([yes])
|
|
tmp_thread_safe_initially_defined="yes"
|
|
],[
|
|
AC_MSG_RESULT([no])
|
|
tmp_thread_safe_initially_defined="no"
|
|
])
|
|
#
|
|
if test "$tmp_thread_safe_initially_defined" = "no"; then
|
|
AC_MSG_CHECKING([if _THREAD_SAFE is actually needed])
|
|
CURL_CHECK_NEED_THREAD_SAFE_SYSTEM
|
|
if test "$tmp_need_thread_safe" = "yes"; then
|
|
AC_MSG_RESULT([yes])
|
|
else
|
|
AC_MSG_RESULT([no])
|
|
fi
|
|
fi
|
|
#
|
|
AC_MSG_CHECKING([if _THREAD_SAFE is onwards defined])
|
|
if test "$tmp_thread_safe_initially_defined" = "yes" ||
|
|
test "$tmp_need_thread_safe" = "yes"; then
|
|
CURL_CONFIGURE_FROM_NOW_ON_WITH_THREAD_SAFE
|
|
AC_MSG_RESULT([yes])
|
|
else
|
|
AC_MSG_RESULT([no])
|
|
fi
|
|
#
|
|
])
|
|
|