1dnl $Id: check-xau.m4 15454 2005-06-16 21:02:16Z lha $
2dnl
3dnl check for Xau{Read,Write}Auth and XauFileName
4dnl
5AC_DEFUN([AC_CHECK_XAU],[
6save_CFLAGS="$CFLAGS"
7CFLAGS="$X_CFLAGS $CFLAGS"
8save_LIBS="$LIBS"
9dnl LIBS="$X_LIBS $X_PRE_LIBS $X_EXTRA_LIBS $LIBS"
10LIBS="$X_PRE_LIBS $X_EXTRA_LIBS $LIBS"
11save_LDFLAGS="$LDFLAGS"
12LDFLAGS="$LDFLAGS $X_LIBS"
13
14## check for XauWriteAuth first, so we detect the case where
15## XauReadAuth is in -lX11, but XauWriteAuth is only in -lXau this
16## could be done by checking for XauReadAuth in -lXau first, but this
17## breaks in IRIX 6.5
18
19AC_FIND_FUNC_NO_LIBS(XauWriteAuth, X11 Xau,[#include <X11/Xauth.h>],[0,0])
20ac_xxx="$LIBS"
21LIBS="$LIB_XauWriteAuth $LIBS"
22AC_FIND_FUNC_NO_LIBS(XauReadAuth, X11 Xau,[#include <X11/Xauth.h>],[0])
23LIBS="$LIB_XauReadAauth $LIBS"
24AC_FIND_FUNC_NO_LIBS(XauFileName, X11 Xau,[#include <X11/Xauth.h>])
25LIBS="$ac_xxx"
26
27## set LIB_XauReadAuth to union of these tests, since this is what the
28## Makefiles are using
29case "$ac_cv_funclib_XauWriteAuth" in
30yes)	;;
31no)	;;
32*)	if test "$ac_cv_funclib_XauReadAuth" = yes; then
33		if test "$ac_cv_funclib_XauFileName" = yes; then
34			LIB_XauReadAuth="$LIB_XauWriteAuth"
35		else
36			LIB_XauReadAuth="$LIB_XauWriteAuth $LIB_XauFileName"
37		fi
38	else
39		if test "$ac_cv_funclib_XauFileName" = yes; then
40			LIB_XauReadAuth="$LIB_XauReadAuth $LIB_XauWriteAuth"
41		else
42			LIB_XauReadAuth="$LIB_XauReadAuth $LIB_XauWriteAuth $LIB_XauFileName"
43		fi
44	fi
45	;;
46esac
47
48if test "$AUTOMAKE" != ""; then
49	AM_CONDITIONAL(NEED_WRITEAUTH, test "$ac_cv_func_XauWriteAuth" != "yes")
50else
51	AC_SUBST(NEED_WRITEAUTH_TRUE)
52	AC_SUBST(NEED_WRITEAUTH_FALSE)
53	if test "$ac_cv_func_XauWriteAuth" != "yes"; then
54		NEED_WRITEAUTH_TRUE=
55		NEED_WRITEAUTH_FALSE='#'
56	else
57		NEED_WRITEAUTH_TRUE='#'
58		NEED_WRITEAUTH_FALSE=
59	fi
60fi
61CFLAGS=$save_CFLAGS
62LIBS=$save_LIBS
63LDFLAGS=$save_LDFLAGS
64])
65