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improve detection of:

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strcasecmp()
  strcmpi()
  stricmp()
  strncasecmp()
  strncmpi()
  strnicmp()
pull/1/head
Yang Tse 16 years ago
parent 0cd952f7c2
commit b6e5b752fe
2 changed files with 522 additions and 2 deletions
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  1. 8
      configure.ac
  2. 516
      m4/cares-functions.m4

8
configure.ac
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@ -449,6 +449,7 @@ if test "$ac_cv_lib_resolve_strcasecmp" = "$ac_cv_func_strcasecmp"; then
,
-lnsl)
fi
ac_cv_func_strcasecmp="no"
dnl socket lib?
AC_CHECK_FUNC(connect, , [ AC_CHECK_LIB(socket, connect) ])
@ -643,7 +644,14 @@ CURL_CHECK_FUNC_RECVFROM
CURL_CHECK_FUNC_SEND
CURL_CHECK_MSG_NOSIGNAL
CARES_CHECK_FUNC_STRCASECMP
CARES_CHECK_FUNC_STRCMPI
CARES_CHECK_FUNC_STRDUP
CARES_CHECK_FUNC_STRICMP
CARES_CHECK_FUNC_STRNCASECMP
CARES_CHECK_FUNC_STRNCMPI
CARES_CHECK_FUNC_STRNICMP
dnl check for AF_INET6
CARES_CHECK_CONSTANT(

516
m4/cares-functions.m4
Unescape View File

@ -22,7 +22,7 @@
dnl CARES_INCLUDES_STRING
dnl -------------------------------------------------
dnl Set up variable with list of headers that must be
dnl included when string.h is to be included.
dnl included when string(s).h is to be included.
AC_DEFUN([CARES_INCLUDES_STRING], [
cares_includes_string="\
@ -33,13 +33,186 @@ cares_includes_string="\
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
/* includes end */"
AC_CHECK_HEADERS(
sys/types.h string.h,
sys/types.h string.h strings.h,
[], [], [$cares_includes_string])
])
dnl CARES_CHECK_FUNC_STRCASECMP
dnl -------------------------------------------------
dnl Verify if strcasecmp is available, prototyped, and
dnl can be compiled. If all of these are true, and
dnl usage has not been previously disallowed with
dnl shell variable cares_disallow_strcasecmp, then
dnl HAVE_STRCASECMP will be defined.
AC_DEFUN([CARES_CHECK_FUNC_STRCASECMP], [
AC_REQUIRE([CARES_INCLUDES_STRING])dnl
#
tst_links_strcasecmp="unknown"
tst_proto_strcasecmp="unknown"
tst_compi_strcasecmp="unknown"
tst_allow_strcasecmp="unknown"
#
AC_MSG_CHECKING([if strcasecmp can be linked])
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([strcasecmp])
],[
AC_MSG_RESULT([yes])
tst_links_strcasecmp="yes"
],[
AC_MSG_RESULT([no])
tst_links_strcasecmp="no"
])
#
if test "$tst_links_strcasecmp" = "yes"; then
AC_MSG_CHECKING([if strcasecmp is prototyped])
AC_EGREP_CPP([strcasecmp],[
$cares_includes_string
],[
AC_MSG_RESULT([yes])
tst_proto_strcasecmp="yes"
],[
AC_MSG_RESULT([no])
tst_proto_strcasecmp="no"
])
fi
#
if test "$tst_proto_strcasecmp" = "yes"; then
AC_MSG_CHECKING([if strcasecmp is compilable])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$cares_includes_string
]],[[
if(0 != strcasecmp(0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_strcasecmp="yes"
],[
AC_MSG_RESULT([no])
tst_compi_strcasecmp="no"
])
fi
#
if test "$tst_compi_strcasecmp" = "yes"; then
AC_MSG_CHECKING([if strcasecmp usage allowed])
if test "x$cares_disallow_strcasecmp" != "xyes"; then
AC_MSG_RESULT([yes])
tst_allow_strcasecmp="yes"
else
AC_MSG_RESULT([no])
tst_allow_strcasecmp="no"
fi
fi
#
AC_MSG_CHECKING([if strcasecmp might be used])
if test "$tst_links_strcasecmp" = "yes" &&
test "$tst_proto_strcasecmp" = "yes" &&
test "$tst_compi_strcasecmp" = "yes" &&
test "$tst_allow_strcasecmp" = "yes"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(HAVE_STRCASECMP, 1,
[Define to 1 if you have the strcasecmp function.])
ac_cv_func_strcasecmp="yes"
else
AC_MSG_RESULT([no])
ac_cv_func_strcasecmp="no"
fi
])
dnl CARES_CHECK_FUNC_STRCMPI
dnl -------------------------------------------------
dnl Verify if strcmpi is available, prototyped, and
dnl can be compiled. If all of these are true, and
dnl usage has not been previously disallowed with
dnl shell variable cares_disallow_strcmpi, then
dnl HAVE_STRCMPI will be defined.
AC_DEFUN([CARES_CHECK_FUNC_STRCMPI], [
AC_REQUIRE([CARES_INCLUDES_STRING])dnl
#
tst_links_strcmpi="unknown"
tst_proto_strcmpi="unknown"
tst_compi_strcmpi="unknown"
tst_allow_strcmpi="unknown"
#
AC_MSG_CHECKING([if strcmpi can be linked])
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([strcmpi])
],[
AC_MSG_RESULT([yes])
tst_links_strcmpi="yes"
],[
AC_MSG_RESULT([no])
tst_links_strcmpi="no"
])
#
if test "$tst_links_strcmpi" = "yes"; then
AC_MSG_CHECKING([if strcmpi is prototyped])
AC_EGREP_CPP([strcmpi],[
$cares_includes_string
],[
AC_MSG_RESULT([yes])
tst_proto_strcmpi="yes"
],[
AC_MSG_RESULT([no])
tst_proto_strcmpi="no"
])
fi
#
if test "$tst_proto_strcmpi" = "yes"; then
AC_MSG_CHECKING([if strcmpi is compilable])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$cares_includes_string
]],[[
if(0 != strcmpi(0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_strcmpi="yes"
],[
AC_MSG_RESULT([no])
tst_compi_strcmpi="no"
])
fi
#
if test "$tst_compi_strcmpi" = "yes"; then
AC_MSG_CHECKING([if strcmpi usage allowed])
if test "x$cares_disallow_strcmpi" != "xyes"; then
AC_MSG_RESULT([yes])
tst_allow_strcmpi="yes"
else
AC_MSG_RESULT([no])
tst_allow_strcmpi="no"
fi
fi
#
AC_MSG_CHECKING([if strcmpi might be used])
if test "$tst_links_strcmpi" = "yes" &&
test "$tst_proto_strcmpi" = "yes" &&
test "$tst_compi_strcmpi" = "yes" &&
test "$tst_allow_strcmpi" = "yes"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(HAVE_STRCMPI, 1,
[Define to 1 if you have the strcmpi function.])
ac_cv_func_strcmpi="yes"
else
AC_MSG_RESULT([no])
ac_cv_func_strcmpi="no"
fi
])
dnl CARES_CHECK_FUNC_STRDUP
dnl -------------------------------------------------
dnl Verify if strdup is available, prototyped, and
@ -124,3 +297,342 @@ AC_DEFUN([CARES_CHECK_FUNC_STRDUP], [
fi
])
dnl CARES_CHECK_FUNC_STRICMP
dnl -------------------------------------------------
dnl Verify if stricmp is available, prototyped, and
dnl can be compiled. If all of these are true, and
dnl usage has not been previously disallowed with
dnl shell variable cares_disallow_stricmp, then
dnl HAVE_STRICMP will be defined.
AC_DEFUN([CARES_CHECK_FUNC_STRICMP], [
AC_REQUIRE([CARES_INCLUDES_STRING])dnl
#
tst_links_stricmp="unknown"
tst_proto_stricmp="unknown"
tst_compi_stricmp="unknown"
tst_allow_stricmp="unknown"
#
AC_MSG_CHECKING([if stricmp can be linked])
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([stricmp])
],[
AC_MSG_RESULT([yes])
tst_links_stricmp="yes"
],[
AC_MSG_RESULT([no])
tst_links_stricmp="no"
])
#
if test "$tst_links_stricmp" = "yes"; then
AC_MSG_CHECKING([if stricmp is prototyped])
AC_EGREP_CPP([stricmp],[
$cares_includes_string
],[
AC_MSG_RESULT([yes])
tst_proto_stricmp="yes"
],[
AC_MSG_RESULT([no])
tst_proto_stricmp="no"
])
fi
#
if test "$tst_proto_stricmp" = "yes"; then
AC_MSG_CHECKING([if stricmp is compilable])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$cares_includes_string
]],[[
if(0 != stricmp(0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_stricmp="yes"
],[
AC_MSG_RESULT([no])
tst_compi_stricmp="no"
])
fi
#
if test "$tst_compi_stricmp" = "yes"; then
AC_MSG_CHECKING([if stricmp usage allowed])
if test "x$cares_disallow_stricmp" != "xyes"; then
AC_MSG_RESULT([yes])
tst_allow_stricmp="yes"
else
AC_MSG_RESULT([no])
tst_allow_stricmp="no"
fi
fi
#
AC_MSG_CHECKING([if stricmp might be used])
if test "$tst_links_stricmp" = "yes" &&
test "$tst_proto_stricmp" = "yes" &&
test "$tst_compi_stricmp" = "yes" &&
test "$tst_allow_stricmp" = "yes"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(HAVE_STRICMP, 1,
[Define to 1 if you have the stricmp function.])
ac_cv_func_stricmp="yes"
else
AC_MSG_RESULT([no])
ac_cv_func_stricmp="no"
fi
])
dnl CARES_CHECK_FUNC_STRNCASECMP
dnl -------------------------------------------------
dnl Verify if strncasecmp is available, prototyped, and
dnl can be compiled. If all of these are true, and
dnl usage has not been previously disallowed with
dnl shell variable cares_disallow_strncasecmp, then
dnl HAVE_STRNCASECMP will be defined.
AC_DEFUN([CARES_CHECK_FUNC_STRNCASECMP], [
AC_REQUIRE([CARES_INCLUDES_STRING])dnl
#
tst_links_strncasecmp="unknown"
tst_proto_strncasecmp="unknown"
tst_compi_strncasecmp="unknown"
tst_allow_strncasecmp="unknown"
#
AC_MSG_CHECKING([if strncasecmp can be linked])
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([strncasecmp])
],[
AC_MSG_RESULT([yes])
tst_links_strncasecmp="yes"
],[
AC_MSG_RESULT([no])
tst_links_strncasecmp="no"
])
#
if test "$tst_links_strncasecmp" = "yes"; then
AC_MSG_CHECKING([if strncasecmp is prototyped])
AC_EGREP_CPP([strncasecmp],[
$cares_includes_string
],[
AC_MSG_RESULT([yes])
tst_proto_strncasecmp="yes"
],[
AC_MSG_RESULT([no])
tst_proto_strncasecmp="no"
])
fi
#
if test "$tst_proto_strncasecmp" = "yes"; then
AC_MSG_CHECKING([if strncasecmp is compilable])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$cares_includes_string
]],[[
if(0 != strncasecmp(0, 0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_strncasecmp="yes"
],[
AC_MSG_RESULT([no])
tst_compi_strncasecmp="no"
])
fi
#
if test "$tst_compi_strncasecmp" = "yes"; then
AC_MSG_CHECKING([if strncasecmp usage allowed])
if test "x$cares_disallow_strncasecmp" != "xyes"; then
AC_MSG_RESULT([yes])
tst_allow_strncasecmp="yes"
else
AC_MSG_RESULT([no])
tst_allow_strncasecmp="no"
fi
fi
#
AC_MSG_CHECKING([if strncasecmp might be used])
if test "$tst_links_strncasecmp" = "yes" &&
test "$tst_proto_strncasecmp" = "yes" &&
test "$tst_compi_strncasecmp" = "yes" &&
test "$tst_allow_strncasecmp" = "yes"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(HAVE_STRNCASECMP, 1,
[Define to 1 if you have the strncasecmp function.])
ac_cv_func_strncasecmp="yes"
else
AC_MSG_RESULT([no])
ac_cv_func_strncasecmp="no"
fi
])
dnl CARES_CHECK_FUNC_STRNCMPI
dnl -------------------------------------------------
dnl Verify if strncmpi is available, prototyped, and
dnl can be compiled. If all of these are true, and
dnl usage has not been previously disallowed with
dnl shell variable cares_disallow_strncmpi, then
dnl HAVE_STRNCMPI will be defined.
AC_DEFUN([CARES_CHECK_FUNC_STRNCMPI], [
AC_REQUIRE([CARES_INCLUDES_STRING])dnl
#
tst_links_strncmpi="unknown"
tst_proto_strncmpi="unknown"
tst_compi_strncmpi="unknown"
tst_allow_strncmpi="unknown"
#
AC_MSG_CHECKING([if strncmpi can be linked])
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([strncmpi])
],[
AC_MSG_RESULT([yes])
tst_links_strncmpi="yes"
],[
AC_MSG_RESULT([no])
tst_links_strncmpi="no"
])
#
if test "$tst_links_strncmpi" = "yes"; then
AC_MSG_CHECKING([if strncmpi is prototyped])
AC_EGREP_CPP([strncmpi],[
$cares_includes_string
],[
AC_MSG_RESULT([yes])
tst_proto_strncmpi="yes"
],[
AC_MSG_RESULT([no])
tst_proto_strncmpi="no"
])
fi
#
if test "$tst_proto_strncmpi" = "yes"; then
AC_MSG_CHECKING([if strncmpi is compilable])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$cares_includes_string
]],[[
if(0 != strncmpi(0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_strncmpi="yes"
],[
AC_MSG_RESULT([no])
tst_compi_strncmpi="no"
])
fi
#
if test "$tst_compi_strncmpi" = "yes"; then
AC_MSG_CHECKING([if strncmpi usage allowed])
if test "x$cares_disallow_strncmpi" != "xyes"; then
AC_MSG_RESULT([yes])
tst_allow_strncmpi="yes"
else
AC_MSG_RESULT([no])
tst_allow_strncmpi="no"
fi
fi
#
AC_MSG_CHECKING([if strncmpi might be used])
if test "$tst_links_strncmpi" = "yes" &&
test "$tst_proto_strncmpi" = "yes" &&
test "$tst_compi_strncmpi" = "yes" &&
test "$tst_allow_strncmpi" = "yes"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(HAVE_STRNCMPI, 1,
[Define to 1 if you have the strncmpi function.])
ac_cv_func_strncmpi="yes"
else
AC_MSG_RESULT([no])
ac_cv_func_strncmpi="no"
fi
])
dnl CARES_CHECK_FUNC_STRNICMP
dnl -------------------------------------------------
dnl Verify if strnicmp is available, prototyped, and
dnl can be compiled. If all of these are true, and
dnl usage has not been previously disallowed with
dnl shell variable cares_disallow_strnicmp, then
dnl HAVE_STRNICMP will be defined.
AC_DEFUN([CARES_CHECK_FUNC_STRNICMP], [
AC_REQUIRE([CARES_INCLUDES_STRING])dnl
#
tst_links_strnicmp="unknown"
tst_proto_strnicmp="unknown"
tst_compi_strnicmp="unknown"
tst_allow_strnicmp="unknown"
#
AC_MSG_CHECKING([if strnicmp can be linked])
AC_LINK_IFELSE([
AC_LANG_FUNC_LINK_TRY([strnicmp])
],[
AC_MSG_RESULT([yes])
tst_links_strnicmp="yes"
],[
AC_MSG_RESULT([no])
tst_links_strnicmp="no"
])
#
if test "$tst_links_strnicmp" = "yes"; then
AC_MSG_CHECKING([if strnicmp is prototyped])
AC_EGREP_CPP([strnicmp],[
$cares_includes_string
],[
AC_MSG_RESULT([yes])
tst_proto_strnicmp="yes"
],[
AC_MSG_RESULT([no])
tst_proto_strnicmp="no"
])
fi
#
if test "$tst_proto_strnicmp" = "yes"; then
AC_MSG_CHECKING([if strnicmp is compilable])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$cares_includes_string
]],[[
if(0 != strnicmp(0, 0))
return 1;
]])
],[
AC_MSG_RESULT([yes])
tst_compi_strnicmp="yes"
],[
AC_MSG_RESULT([no])
tst_compi_strnicmp="no"
])
fi
#
if test "$tst_compi_strnicmp" = "yes"; then
AC_MSG_CHECKING([if strnicmp usage allowed])
if test "x$cares_disallow_strnicmp" != "xyes"; then
AC_MSG_RESULT([yes])
tst_allow_strnicmp="yes"
else
AC_MSG_RESULT([no])
tst_allow_strnicmp="no"
fi
fi
#
AC_MSG_CHECKING([if strnicmp might be used])
if test "$tst_links_strnicmp" = "yes" &&
test "$tst_proto_strnicmp" = "yes" &&
test "$tst_compi_strnicmp" = "yes" &&
test "$tst_allow_strnicmp" = "yes"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(HAVE_STRNICMP, 1,
[Define to 1 if you have the strnicmp function.])
ac_cv_func_strnicmp="yes"
else
AC_MSG_RESULT([no])
ac_cv_func_strnicmp="no"
fi
])

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