1dnl aclocal.m4 generated automatically by aclocal 1.4-p5
2
3dnl Copyright (C) 1994, 1995-8, 1999, 2001 Free Software Foundation, Inc.
4dnl This file is free software; the Free Software Foundation
5dnl gives unlimited permission to copy and/or distribute it,
6dnl with or without modifications, as long as this notice is preserved.
7
8dnl This program is distributed in the hope that it will be useful,
9dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
10dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
11dnl PARTICULAR PURPOSE.
12
13dnl Autoconf macros for libmcrypt
14dnl $id$
15
16# This script detects libmcrypt version and defines
17# LIBMCRYPT_CFLAGS, LIBMCRYPT_LIBS
18# and LIBMCRYPT24 or LIBMCRYPT22 depending on libmcrypt version
19# found.
20
21# Modified for LIBMCRYPT -- nmav
22# Configure paths for LIBGCRYPT
23# Shamelessly stolen from the one of XDELTA by Owen Taylor
24# Werner Koch   99-12-09
25
26dnl AM_PATH_LIBMCRYPT([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
27dnl Test for libmcrypt, and define LIBMCRYPT_CFLAGS and LIBMCRYPT_LIBS
28dnl
29AC_DEFUN(AM_PATH_LIBMCRYPT,
30[dnl
31dnl Get the cflags and libraries from the libmcrypt-config script
32dnl
33AC_ARG_WITH(libmcrypt-prefix,
34          [  --with-libmcrypt-prefix=PFX   Prefix where libmcrypt is installed (optional)],
35          libmcrypt_config_prefix="$withval", libmcrypt_config_prefix="")
36
37  if test x$libmcrypt_config_prefix != x ; then
38     libmcrypt_config_args="$libmcrypt_config_args --prefix=$libmcrypt_config_prefix"
39     if test x${LIBMCRYPT_CONFIG+set} != xset ; then
40        LIBMCRYPT_CONFIG=$libmcrypt_config_prefix/bin/libmcrypt-config
41     fi
42  fi
43
44  AC_PATH_PROG(LIBMCRYPT_CONFIG, libmcrypt-config, no)
45  min_libmcrypt_version=ifelse([$1], ,2.4.0,$1)
46  AC_MSG_CHECKING(for libmcrypt - version >= $min_libmcrypt_version)
47  no_libmcrypt=""
48  if test "$LIBMCRYPT_CONFIG" = "no" ; then
49dnl libmcrypt-config was not found (pre 2.4.11 versions)
50dnl Try to detect libmcrypt version
51      AC_TRY_RUN([
52#include <stdio.h>
53#include <stdlib.h>
54#include <string.h>
55#include <mcrypt.h>
56
57int
58main ()
59{
60#if MCRYPT_API_VERSION <= 19991015
61/* version 2.2 */
62    return 0;
63#else
64/* version 2.4 */
65    return 1;
66#endif /* 19991015 */
67}
68],  libmcrypt_config_version="2.2.0"
69    if test x$libmcrypt_config_prefix != x ; then
70	TTLIBS="-L${libmcrypt_config_prefix}/libs"
71	TTINCLUDE="-I${libmcrypt_config_prefix}/include"
72    fi
73    LIBMCRYPT_CFLAGS="${TTINCLUDE}"
74    LIBMCRYPT_LIBS="${TTLIBS} -lmcrypt"
75    AC_DEFINE(LIBMCRYPT22)
76
77,   libmcrypt_config_version="2.4.0"
78    if test x$libmcrypt_config_prefix != x ; then
79	TTLIBS="-L${libmcrypt_config_prefix}/libs"
80	TTINCLUDE="-I${libmcrypt_config_prefix}/include"
81    fi
82    LIBMCRYPT_CFLAGS="${TTINCLUDE}"
83    LIBMCRYPT_LIBS="${TTLIBS} -lmcrypt -lltdl ${LIBADD_DL}"
84    AC_DEFINE(LIBMCRYPT24))
85  else
86dnl libmcrypt-config was found
87    LIBMCRYPT_CFLAGS=`$LIBMCRYPT_CONFIG $libmcrypt_config_args --cflags`
88    LIBMCRYPT_LIBS=`$LIBMCRYPT_CONFIG $libmcrypt_config_args --libs`
89    libmcrypt_config_version=`$LIBMCRYPT_CONFIG $libmcrypt_config_args --version`
90    AC_DEFINE(LIBMCRYPT24)
91  fi
92
93  ac_save_CFLAGS="$CFLAGS"
94  ac_save_LIBS="$LIBS"
95  CFLAGS="$CFLAGS $LIBMCRYPT_CFLAGS"
96  LIBS="$LIBS $LIBMCRYPT_LIBS"
97
98dnl
99dnl Now check if the installed libmcrypt is sufficiently new. Also sanity
100dnl checks the results of libmcrypt-config to some extent
101dnl
102      rm -f conf.libmcrypttest
103      AC_TRY_RUN([
104#include <stdio.h>
105#include <stdlib.h>
106#include <string.h>
107#include <mcrypt.h>
108
109#define TWO "2.2"
110
111int
112main ()
113{
114#if MCRYPT_API_VERSION <= 20010201
115
116#if MCRYPT_API_VERSION <= 19991015
117/* version 2.2 */
118    int x = mcrypt_get_key_size(MCRYPT_TWOFISH_128);
119    system ("touch conf.libmcrypttest");
120
121    if( strncmp( TWO, "$min_libmcrypt_version", strlen(TWO))) {
122      printf("\n*** Requested libmcrypt %s, but LIBMCRYPT (%s)\n",
123             "$min_libmcrypt_version", TWO );
124      printf("*** was found!\n");
125      return 1;
126    }
127    return 0;
128#else
129/* version 2.4 before 11 */
130    MCRYPT td = mcrypt_module_open("twofish", NULL, "cbc", NULL);
131    system ("touch conf.libmcrypttest");
132    mcrypt_module_close(td);
133
134    return 0;
135#endif /* 19991015 */
136
137#else
138
139    system ("touch conf.libmcrypttest");
140
141    if( strcmp( mcrypt_check_version(NULL), "$libmcrypt_config_version" ) )
142    {
143      printf("\n*** 'libmcrypt-config --version' returned %s, but LIBMCRYPT (%s)\n",
144             "$libmcrypt_config_version", mcrypt_check_version(NULL) );
145      printf("*** was found! If libmcrypt-config was correct, then it is best\n");
146      printf("*** to remove the old version of LIBMCRYPT. You may also be able to fix the error\n");
147      printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
148      printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
149      printf("*** required on your system.\n");
150      printf("*** If libmcrypt-config was wrong, set the environment variable LIBMCRYPT_CONFIG\n");
151      printf("*** to point to the correct copy of libmcrypt-config, and remove the file config.cache\n");
152      printf("*** before re-running configure\n");
153    }
154    else if ( strcmp(mcrypt_check_version(NULL), LIBMCRYPT_VERSION ) )
155    {
156      printf("\n*** LIBMCRYPT header file (version %s) does not match\n", LIBMCRYPT_VERSION);
157      printf("*** library (version %s)\n", mcrypt_check_version(NULL) );
158    }
159    else
160    {
161      if ( mcrypt_check_version( "$min_libmcrypt_version" ) )
162      {
163        return 0;
164      }
165     else
166      {
167        printf("no\n*** An old version of LIBMCRYPT (%s) was found.\n",
168                mcrypt_check_version(NULL) );
169        printf("*** You need a version of LIBMCRYPT newer than %s. The latest version of\n",
170               "$min_libmcrypt_version" );
171        printf("*** LIBMCRYPT is always available from ftp://mcrypt.hellug.gr/pub/mcrypt.\n");
172        printf("*** \n");
173        printf("*** If you have already installed a sufficiently new version, this error\n");
174        printf("*** probably means that the wrong copy of the libmcrypt-config shell script is\n");
175        printf("*** being found. The easiest way to fix this is to remove the old version\n");
176        printf("*** of LIBMCRYPT, but you can also set the LIBMCRYPT_CONFIG environment to point to the\n");
177        printf("*** correct copy of libmcrypt-config. (In this case, you will have to\n");
178        printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
179        printf("*** so that the correct libraries are found at run-time))\n");
180      }
181    }
182  return 1;
183
184#endif /* 20010201 */
185
186}
187],, no_libmcrypt=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
188       CFLAGS="$ac_save_CFLAGS"
189       LIBS="$ac_save_LIBS"
190
191
192  if test "x$no_libmcrypt" = x ; then
193     AC_MSG_RESULT(yes)
194     ifelse([$2], , :, [$2])
195  else
196     if test -f conf.libmcrypttest ; then
197        :
198     else
199        AC_MSG_RESULT(no)
200     fi
201
202     if test -f conf.libmcrypttest ; then
203        :
204     else
205          echo "*** Could not run libmcrypt test program, checking why..."
206          CFLAGS="$CFLAGS $LIBMCRYPT_CFLAGS"
207          LIBS="$LIBS $LIBMCRYPT_LIBS"
208          AC_TRY_LINK([
209#include <stdio.h>
210#include <stdlib.h>
211#include <string.h>
212#include <mcrypt.h>
213],      [
214#if MCRYPT_API_VERSION <= 20010201
215
216#if MCRYPT_API_VERSION <= 19991015
217/* version 2.2 */
218    int x = mcrypt_get_key_size(MCRYPT_TWOFISH_128);
219    return 0;
220#else
221/* version 2.4 before 11 */
222    MCRYPT td = mcrypt_module_open("twofish", NULL, "cbc", NULL);
223    mcrypt_module_close(td);
224    return 0;
225#endif /* 19991015 */
226#else
227
228return !!mcrypt_check_version(NULL);
229
230#endif /* 20010201 */
231
232],
233        [ echo "*** The test program compiled, but did not run. This usually means"
234          echo "*** that the run-time linker is not finding LIBMCRYPT or finding the wrong"
235          echo "*** version of LIBMCRYPT. If it is not finding LIBMCRYPT, you'll need to set your"
236          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
237          echo "*** to the installed location  Also, make sure you have run ldconfig if that"
238          echo "*** is required on your system"
239          echo "***"
240          echo "*** If you have an old version installed, it is best to remove it, although"
241          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
242          echo "***" ],
243        [ echo "*** The test program failed to compile or link. See the file config.log for the"
244          echo "*** exact error that occured. This usually means LIBMCRYPT was incorrectly installed"
245          echo "*** or that you have moved LIBMCRYPT since it was installed. In the latter case, you"
246          echo "*** may want to edit the libmcrypt-config script: $LIBMCRYPT_CONFIG" ])
247          CFLAGS="$ac_save_CFLAGS"
248          LIBS="$ac_save_LIBS"
249     fi
250
251     LIBMCRYPT_CFLAGS=""
252     LIBMCRYPT_LIBS=""
253     ifelse([$3], , :, [$3])
254  fi
255  AC_SUBST(LIBMCRYPT_CFLAGS)
256  AC_SUBST(LIBMCRYPT_LIBS)
257])
258
259dnl *-*wedit:notab*-*  Please keep this as the last line.
260
261