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Added check for memrchr function or macro

This commit is contained in:
Yang Tse 2009-09-28 12:16:29 +00:00
parent 0ea6abe7df
commit b64dd3c63d
2 changed files with 107 additions and 1 deletions
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1
configure.ac
View File

@ -2058,6 +2058,7 @@ CURL_CHECK_FUNC_IOCTL
CURL_CHECK_FUNC_IOCTLSOCKET
CURL_CHECK_FUNC_IOCTLSOCKET_CAMEL
CURL_CHECK_FUNC_LOCALTIME_R
CURL_CHECK_FUNC_MEMRCHR
CURL_CHECK_FUNC_POLL
CURL_CHECK_FUNC_SETSOCKOPT
CURL_CHECK_FUNC_SIGACTION

107
m4/curl-functions.m4
View File

@ -22,7 +22,7 @@
#***************************************************************************
# File version for 'aclocal' use. Keep it a single number.
# serial 51
# serial 53
dnl CURL_INCLUDES_ARPA_INET
@ -3494,6 +3494,111 @@ AC_DEFUN([CURL_CHECK_FUNC_LOCALTIME_R], [
])
dnl CURL_CHECK_FUNC_MEMRCHR
dnl -------------------------------------------------
dnl Verify if memrchr 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_memrchr, then
dnl HAVE_MEMRCHR will be defined.
AC_DEFUN([CURL_CHECK_FUNC_MEMRCHR], [
AC_REQUIRE([CURL_INCLUDES_STRING])dnl
#
tst_links_memrchr="unknown"
tst_macro_memrchr="unknown"
tst_proto_memrchr="unknown"
tst_compi_memrchr="unknown"
tst_allow_memrchr="unknown"
#
AC_MSG_CHECKING([if memrchr can be linked])
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([memrchr])
],[
AC_MSG_RESULT([yes])
tst_links_memrchr="yes"
],[
AC_MSG_RESULT([no])
tst_links_memrchr="no"
])
#
if test "$tst_links_memrchr" = "no"; then
AC_MSG_CHECKING([if memrchr seems a macro])
AC_LINK_IFELSE([
AC_LANG_PROGRAM([[
$curl_includes_string
]],[[
if(0 != memrchr(0, 0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_macro_memrchr="yes"
],[
AC_MSG_RESULT([no])
tst_macro_memrchr="no"
])
fi
#
if test "$tst_links_memrchr" = "yes"; then
AC_MSG_CHECKING([if memrchr is prototyped])
AC_EGREP_CPP([memrchr],[
$curl_includes_string
],[
AC_MSG_RESULT([yes])
tst_proto_memrchr="yes"
],[
AC_MSG_RESULT([no])
tst_proto_memrchr="no"
])
fi
#
if test "$tst_proto_memrchr" = "yes" ||
test "$tst_macro_memrchr" = "yes"; then
AC_MSG_CHECKING([if memrchr is compilable])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$curl_includes_string
]],[[
if(0 != memrchr(0, 0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_memrchr="yes"
],[
AC_MSG_RESULT([no])
tst_compi_memrchr="no"
])
fi
#
if test "$tst_compi_memrchr" = "yes"; then
AC_MSG_CHECKING([if memrchr usage allowed])
if test "x$curl_disallow_memrchr" != "xyes"; then
AC_MSG_RESULT([yes])
tst_allow_memrchr="yes"
else
AC_MSG_RESULT([no])
tst_allow_memrchr="no"
fi
fi
#
AC_MSG_CHECKING([if memrchr might be used])
if (test "$tst_proto_memrchr" = "yes" ||
test "$tst_macro_memrchr" = "yes") &&
test "$tst_compi_memrchr" = "yes" &&
test "$tst_allow_memrchr" = "yes"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(HAVE_MEMRCHR, 1,
[Define to 1 if you have the memrchr function or macro.])
ac_cv_func_memrchr="yes"
else
AC_MSG_RESULT([no])
ac_cv_func_memrchr="no"
fi
])
dnl CURL_CHECK_FUNC_POLL
dnl -------------------------------------------------
dnl Verify if poll is available, prototyped, can