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use same AIX XLC compiler options as curl's

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This commit is contained in:
Yang Tse 2007-02-07 18:13:40 +00:00
parent 4ab91a93e8
commit 7a39b98471
1 changed files with 78 additions and 0 deletions
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78
ares/configure.ac
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@ -77,6 +77,13 @@ esac
AC_MSG_RESULT($need_no_undefined)
AM_CONDITIONAL(NO_UNDEFINED, test x$need_no_undefined = xyes)
dnl **********************************************************************
dnl check if this is the Intel ICC compiler, and if so make it stricter
dnl (convert warning 147 into an error) so that it properly can detect the
dnl gethostbyname_r() version
dnl **********************************************************************
CURL_DETECT_ICC([CFLAGS="$CFLAGS -we 147"])
dnl **********************************************************************
dnl Checks for libraries.
dnl **********************************************************************
@ -198,6 +205,77 @@ AC_HELP_STRING([--enable-libgcc],[use libgcc when linking]),
AC_MSG_RESULT(no)
)
dnl Default is to try the thread-safe versions of a few functions
OPT_THREAD=on
dnl detect AIX 4.3 or later
AC_MSG_CHECKING([AIX 4.3 or later])
AC_PREPROC_IFELSE([
#if defined(_AIX) && defined(_AIX43)
printf("just fine");
#else
#error "this is not AIX 4.3 or later"
#endif
],
[ AC_MSG_RESULT([yes])
RECENTAIX=yes
OPT_THREAD=off ],
[ AC_MSG_RESULT([no]) ]
)
AC_ARG_ENABLE(thread,dnl
AC_HELP_STRING([--disable-thread],[don't look for thread-safe functions])
AC_HELP_STRING([--enable-thread],[look for thread-safe functions]),
[ case "$enableval" in
no)
OPT_THREAD=off
AC_MSG_WARN(c-ares will not get built using thread-safe functions)
;;
*)
;;
esac
]
)
if test X"$OPT_THREAD" = Xoff
then
AC_DEFINE(DISABLED_THREADSAFE, 1,
[Set to explicitly specify we don't want to use thread-safe functions])
fi
dnl for recent AIX versions, we skip all the thread-safe checks above since
dnl they claim a thread-safe libc using the standard API. But there are
dnl some functions still not thread-safe. Check for these!
dnl Let's hope this split URL remains working:
dnl http://publibn.boulder.ibm.com/doc_link/en_US/a_doc_lib/aixprggd/ \
dnl genprogc/thread_quick_ref.htm
if test "x$RECENTAIX" = "xyes"; then
AC_DEFINE(_THREAD_SAFE, 1, [define this if you need it to compile thread-safe code])
dnl check if this is the IBM xlc compiler
dnl Details thanks to => http://predef.sourceforge.net/
AC_MSG_CHECKING([if this is the xlc compiler])
AC_EGREP_CPP([^__xlC__], [__xlC__],
dnl action if the text is found, this it has not been replaced by the
dnl cpp
XLC="no"
AC_MSG_RESULT([no]),
dnl the text was not found, it was replaced by the cpp
XLC="yes"
AC_MSG_RESULT([yes])
CFLAGS="$CFLAGS -qthreaded"
dnl AIX xlc has to have strict aliasing turned off. If not,
dnl the optimizer assumes that pointers can only point to
dnl an object of the same type.
CFLAGS="$CFLAGS -qnoansialias"
)
fi
dnl **********************************************************************
dnl Back to "normal" configuring
dnl **********************************************************************