1
0
mirror of https://github.com/moparisthebest/curl synced 2024-11-07 10:05:06 -05:00
curl/ares/m4/reentrant.m4
Yang Tse 052f9ddedb Another step towards detecting if _REENTRANT is already defined or actually
needed, and being able to define it if appropriate for further configure tests
as well as for the generated config file.
2008-07-27 01:36:33 +00:00

427 lines
10 KiB
Plaintext

dnl CARES_CHECK_NEED_REENTRANT_GMTIME_R
dnl -------------------------------------------------
dnl Checks if the preprocessor _REENTRANT definition
dnl makes function gmtime_r compiler visible.
AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GMTIME_R], [
#
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([gmtime_r])
],[
tmp_gmtime_r="yes"
],[
tmp_gmtime_r="no"
])
#
if test "$tmp_gmtime_r" = "yes"; then
AC_EGREP_CPP([gmtime_r],[
#include <sys/types.h>
#include <time.h>
],[
tmp_gmtime_r="proto_declared"
],[
AC_EGREP_CPP([gmtime_r],[
#define _REENTRANT
#include <sys/types.h>
#include <time.h>
],[
tmp_gmtime_r="proto_needs_reentrant"
tmp_need_reentrant="yes"
])
])
fi
])
dnl CARES_CHECK_NEED_REENTRANT_LOCALTIME_R
dnl -------------------------------------------------
dnl Checks if the preprocessor _REENTRANT definition
dnl makes function localtime_r compiler visible.
AC_DEFUN([CARES_CHECK_NEED_REENTRANT_LOCALTIME_R], [
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([localtime_r])
],[
tmp_localtime_r="yes"
],[
tmp_localtime_r="no"
])
if test "$tmp_localtime_r" = "yes"; then
AC_EGREP_CPP([localtime_r],[
#include <sys/types.h>
#include <time.h>
],[
tmp_localtime_r="proto_declared"
],[
AC_EGREP_CPP([localtime_r],[
#define _REENTRANT
#include <sys/types.h>
#include <time.h>
],[
tmp_localtime_r="proto_needs_reentrant"
tmp_need_reentrant="yes"
])
])
fi
])
dnl CARES_CHECK_NEED_REENTRANT_STRERROR_R
dnl -------------------------------------------------
dnl Checks if the preprocessor _REENTRANT definition
dnl makes function strerror_r compiler visible.
AC_DEFUN([CARES_CHECK_NEED_REENTRANT_STRERROR_R], [
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([strerror_r])
],[
tmp_strerror_r="yes"
],[
tmp_strerror_r="no"
])
if test "$tmp_strerror_r" = "yes"; then
AC_EGREP_CPP([strerror_r],[
#include <sys/types.h>
#include <string.h>
],[
tmp_strerror_r="proto_declared"
],[
AC_EGREP_CPP([strerror_r],[
#define _REENTRANT
#include <sys/types.h>
#include <string.h>
],[
tmp_strerror_r="proto_needs_reentrant"
tmp_need_reentrant="yes"
])
])
fi
])
dnl CARES_CHECK_NEED_REENTRANT_STRTOK_R
dnl -------------------------------------------------
dnl Checks if the preprocessor _REENTRANT definition
dnl makes function strtok_r compiler visible.
AC_DEFUN([CARES_CHECK_NEED_REENTRANT_STRTOK_R], [
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([strtok_r])
],[
tmp_strtok_r="yes"
],[
tmp_strtok_r="no"
])
if test "$tmp_strtok_r" = "yes"; then
AC_EGREP_CPP([strtok_r],[
#include <sys/types.h>
#include <string.h>
],[
tmp_strtok_r="proto_declared"
],[
AC_EGREP_CPP([strtok_r],[
#define _REENTRANT
#include <sys/types.h>
#include <string.h>
],[
tmp_strtok_r="proto_needs_reentrant"
tmp_need_reentrant="yes"
])
])
fi
])
dnl CARES_CHECK_NEED_REENTRANT_INET_NTOA_R
dnl -------------------------------------------------
dnl Checks if the preprocessor _REENTRANT definition
dnl makes function inet_ntoa_r compiler visible.
AC_DEFUN([CARES_CHECK_NEED_REENTRANT_INET_NTOA_R], [
#
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([inet_ntoa_r])
],[
tmp_inet_ntoa_r="yes"
],[
tmp_inet_ntoa_r="no"
])
if test "$tmp_inet_ntoa_r" = "yes"; then
AC_EGREP_CPP([inet_ntoa_r],[
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
],[
tmp_inet_ntoa_r="proto_declared"
],[
AC_EGREP_CPP([inet_ntoa_r],[
#define _REENTRANT
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
],[
tmp_inet_ntoa_r="proto_needs_reentrant"
tmp_need_reentrant="yes"
])
])
fi
])
dnl CARES_CHECK_NEED_REENTRANT_GETHOSTBYADDR_R
dnl -------------------------------------------------
dnl Checks if the preprocessor _REENTRANT definition
dnl makes function gethostbyaddr_r compiler visible.
AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GETHOSTBYADDR_R], [
#
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([gethostbyaddr_r])
],[
tmp_gethostbyaddr_r="yes"
],[
tmp_gethostbyaddr_r="no"
])
if test "$tmp_gethostbyaddr_r" = "yes"; then
AC_EGREP_CPP([gethostbyaddr_r],[
#include <sys/types.h>
#include <netdb.h>
],[
tmp_gethostbyaddr_r="proto_declared"
],[
AC_EGREP_CPP([gethostbyaddr_r],[
#define _REENTRANT
#include <sys/types.h>
#include <netdb.h>
],[
tmp_gethostbyaddr_r="proto_needs_reentrant"
tmp_need_reentrant="yes"
])
])
fi
])
dnl CARES_CHECK_NEED_REENTRANT_GETHOSTBYNAME_R
dnl -------------------------------------------------
dnl Checks if the preprocessor _REENTRANT definition
dnl makes function gethostbyname_r compiler visible.
AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GETHOSTBYNAME_R], [
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([gethostbyname_r])
],[
tmp_gethostbyname_r="yes"
],[
tmp_gethostbyname_r="no"
])
if test "$tmp_gethostbyname_r" = "yes"; then
AC_EGREP_CPP([gethostbyname_r],[
#include <sys/types.h>
#include <netdb.h>
],[
tmp_gethostbyname_r="proto_declared"
],[
AC_EGREP_CPP([gethostbyname_r],[
#define _REENTRANT
#include <sys/types.h>
#include <netdb.h>
],[
tmp_gethostbyname_r="proto_needs_reentrant"
tmp_need_reentrant="yes"
])
])
fi
])
dnl CARES_CHECK_NEED_REENTRANT_GETPROTOBYNAME_R
dnl -------------------------------------------------
dnl Checks if the preprocessor _REENTRANT definition
dnl makes function getprotobyname_r compiler visible.
AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GETPROTOBYNAME_R], [
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([getprotobyname_r])
],[
tmp_getprotobyname_r="yes"
],[
tmp_getprotobyname_r="no"
])
if test "$tmp_getprotobyname_r" = "yes"; then
AC_EGREP_CPP([getprotobyname_r],[
#include <sys/types.h>
#include <netdb.h>
],[
tmp_getprotobyname_r="proto_declared"
],[
AC_EGREP_CPP([getprotobyname_r],[
#define _REENTRANT
#include <sys/types.h>
#include <netdb.h>
],[
tmp_getprotobyname_r="proto_needs_reentrant"
tmp_need_reentrant="yes"
])
])
fi
])
dnl CARES_CHECK_NEED_REENTRANT_GETSERVBYPORT_R
dnl -------------------------------------------------
dnl Checks if the preprocessor _REENTRANT definition
dnl makes function getservbyport_r compiler visible.
AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GETSERVBYPORT_R], [
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([getservbyport_r])
],[
tmp_getservbyport_r="yes"
],[
tmp_getservbyport_r="no"
])
#
if test "$tmp_getservbyport_r" = "yes"; then
AC_EGREP_CPP([getservbyport_r],[
#include <sys/types.h>
#include <netdb.h>
],[
tmp_getservbyport_r="proto_declared"
],[
AC_EGREP_CPP([getservbyport_r],[
#define _REENTRANT
#include <sys/types.h>
#include <netdb.h>
],[
tmp_getservbyport_r="proto_needs_reentrant"
tmp_need_reentrant="yes"
])
])
fi
])
dnl CARES_CHECK_NEED_REENTRANT_FUNCTIONS_R
dnl -------------------------------------------------
dnl Checks if the preprocessor _REENTRANT definition
dnl makes several _r functions compiler visible.
dnl Internal macro for CONFIGURE_REENTRANT.
AC_DEFUN([CARES_CHECK_NEED_REENTRANT_FUNCTIONS_R], [
#
tmp_need_reentrant="no"
#
if test "$tmp_need_reentrant" = "no"; then
CARES_CHECK_NEED_REENTRANT_GMTIME_R
fi
if test "$tmp_need_reentrant" = "no"; then
CARES_CHECK_NEED_REENTRANT_LOCALTIME_R
fi
if test "$tmp_need_reentrant" = "no"; then
CARES_CHECK_NEED_REENTRANT_STRERROR_R
fi
if test "$tmp_need_reentrant" = "no"; then
CARES_CHECK_NEED_REENTRANT_STRTOK_R
fi
if test "$tmp_need_reentrant" = "no"; then
CARES_CHECK_NEED_REENTRANT_INET_NTOA_R
fi
if test "$tmp_need_reentrant" = "no"; then
CARES_CHECK_NEED_REENTRANT_GETHOSTBYADDR_R
fi
if test "$tmp_need_reentrant" = "no"; then
CARES_CHECK_NEED_REENTRANT_GETHOSTBYNAME_R
fi
if test "$tmp_need_reentrant" = "no"; then
CARES_CHECK_NEED_REENTRANT_GETPROTOBYNAME_R
fi
if test "$tmp_need_reentrant" = "no"; then
CARES_CHECK_NEED_REENTRANT_GETSERVBYPORT_R
fi
])
dnl CARES_CONFIGURE_FROM_NOW_ON_WITH_REENTRANT
dnl -------------------------------------------------
dnl This macro ensures that configuration tests done
dnl after this will execute with preprocessor symbol
dnl _REENTRANT defined. This macro also ensures that
dnl the generated config file will equally define it.
dnl Internal macro for CONFIGURE_REENTRANT.
AC_DEFUN([CARES_CONFIGURE_FROM_NOW_ON_WITH_REENTRANT], [
AH_VERBATIM([NEED_REENTRANT],
[/* Configure process defines NEED_REENTRANT to 1 when it finds out that */
/* _REENTRANT is required or already defined for proper configuration. */
@%:@undef NEED_REENTRANT
@%:@if defined(NEED_REENTRANT) && !defined(_REENTRANT)
@%:@ define _REENTRANT
@%:@endif])
cat >>confdefs.h <<_ACEOF
[@%:@ifndef _REENTRANT
@%:@ define _REENTRANT
@%:@endif]
_ACEOF
AC_DEFINE(NEED_REENTRANT, 1, [])
])
dnl CARES_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([CARES_CONFIGURE_REENTRANT], [
#
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 "$tmp_reentrant_initially_defined" = "no"; then
AC_MSG_CHECKING([if _REENTRANT is actually needed])
CARES_CHECK_NEED_REENTRANT_FUNCTIONS_R
if test "$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
CARES_CONFIGURE_FROM_NOW_ON_WITH_REENTRANT
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
#
])