Self checks are conditionally included in the library.
[gnutls:gnutls.git] / configure.ac
1 dnl Process this file with autoconf to produce a configure script.
2 # Copyright (C) 2000-2012 Free Software Foundation, Inc.
3 #
4 # Author: Nikos Mavrogiannopoulos, Simon Josefsson
5 #
6 # This file is part of GnuTLS.
7 #
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 3 of the License, or
11 # (at your option) any later version.
12 #
13 # This program is distributed in the hope that it will be useful, but
14 # WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 # General Public License for more details.
17 #
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
21 # USA
22
23 AC_PREREQ(2.61)
24 AC_INIT([GnuTLS], [3.3.0], [bugs@gnutls.org])
25 AC_CONFIG_AUX_DIR([build-aux])
26 AC_CONFIG_MACRO_DIR([m4])
27 AC_CANONICAL_HOST
28
29 AM_INIT_AUTOMAKE([1.12.2 no-dist-gzip dist-xz dist-lzip -Wall -Wno-override])
30 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
31 AC_CONFIG_HEADERS([config.h])
32
33 AC_MSG_RESULT([***
34 *** Checking for compilation programs...
35 ])
36
37 dnl Checks for programs.
38 AC_PROG_CC
39 gl_EARLY
40 ggl_EARLY
41 AM_PROG_AS
42 AM_PROG_AR
43 AC_PROG_CXX
44 AM_PROG_CC_C_O
45 AC_PROG_YACC
46 AC_CHECK_PROG([AUTOGEN], [autogen], [autogen], [/bin/true])
47
48 if test x"$AUTOGEN" = "x/bin/true"; then
49   AC_MSG_WARN([[
50 ***
51 *** autogen not found. Will not link against libopts.
52 *** ]])
53 enable_local_libopts=yes
54 fi
55
56 # For includes/gnutls/gnutls.h.in.
57 AC_SUBST(MAJOR_VERSION, `echo $PACKAGE_VERSION | sed 's/\(.*\)\..*\..*/\1/g'`)
58 AC_SUBST(MINOR_VERSION, `echo $PACKAGE_VERSION | sed 's/.*\.\(.*\)\..*/\1/g'`)
59 AC_SUBST(PATCH_VERSION, `echo $PACKAGE_VERSION | sed 's/.*\..*\.\(.*\)/\1/g'`)
60 AC_SUBST(NUMBER_VERSION, `printf "0x%02x%02x%02x" $MAJOR_VERSION $MINOR_VERSION $PATCH_VERSION`)
61
62 touch suppressions.valgrind
63 dnl C and C++ capabilities
64 AC_C_INLINE
65 AC_HEADER_STDC
66
67 # For the C++ code
68 AC_ARG_ENABLE(cxx,
69   AS_HELP_STRING([--disable-cxx], [unconditionally disable the C++ library]),
70     use_cxx=$enableval, use_cxx=yes)
71 if test "$use_cxx" != "no"; then
72   AC_LANG_PUSH(C++)
73   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])], use_cxx=yes, use_cxx=no)
74   AC_LANG_POP(C++)
75 fi
76 AM_CONDITIONAL(ENABLE_CXX, test "$use_cxx" != "no")
77 AM_CONDITIONAL(WANT_TEST_SUITE, [test -f tests/suite/mini-eagain2.c])
78
79 dnl Detect windows build
80 case "$host" in
81   *mingw32* | *mingw64*)
82     have_win=yes
83   ;;
84   *darwin*)
85     have_macosx=yes
86   ;;
87   *)
88     have_elf=yes
89   ;;
90 esac
91
92 AM_CONDITIONAL(WINDOWS, test "$have_win" = yes)
93 AM_CONDITIONAL(MACOSX, test "$have_macosx" = yes)
94 AM_CONDITIONAL(ELF, test "$have_elf" = yes)
95
96 dnl Hardware Acceleration
97 AC_ARG_ENABLE(hardware-acceleration,
98   AS_HELP_STRING([--disable-hardware-acceleration], [unconditionally disable hardware acceleration]),
99     use_accel=$enableval, use_accel=yes)
100 hw_accel=none
101
102
103 if test "$use_accel" != "no"; then
104 case $host_cpu in
105   i?86 | x86_64 | amd64)
106       AC_CHECK_HEADERS(cpuid.h)
107       if test "$host_cpu" = "x86_64" || test "$host_cpu" = "amd64"; then
108         hw_accel="x86-64"
109       else
110         hw_accel="x86"
111       fi
112   ;;
113   *)
114   ;;
115 esac
116
117 fi
118
119 AM_CONDITIONAL(ASM_X86_64, test x"$hw_accel" = x"x86-64")
120 AM_CONDITIONAL(ASM_X86_32, test x"$hw_accel" = x"x86")
121 AM_CONDITIONAL(ASM_X86, test x"$hw_accel" = x"x86" || test x"$hw_accel" = x"x86-64")
122 AM_CONDITIONAL(HAVE_GCC_GNU89_INLINE_OPTION, test "$gnu89_inline" = "yes"])
123 AM_CONDITIONAL(HAVE_GCC, test "$GCC" = "yes")
124
125 AC_ARG_ENABLE(self-checks,
126   AS_HELP_STRING([--enable-self-checks], [enable self checking functionality]),
127     enable_self_checks=$enableval, enable_self_checks=no)
128 AM_CONDITIONAL(ENABLE_SELF_CHECKS, test "$enable_self_checks" = "yes")
129 if [ test "$enable_self_checks" = "yes" ];then
130    AC_DEFINE([ENABLE_SELF_CHECKS], 1, [Self checks are included in the library])
131 fi
132
133 dnl Try the hooks.m4
134 LIBGNUTLS_HOOKS
135 LIBGNUTLS_EXTRA_HOOKS
136
137 AC_ARG_ENABLE(doc,
138   AS_HELP_STRING([--disable-doc], [don't generate any documentation]),
139     enable_doc=$enableval, enable_doc=yes)
140 AM_CONDITIONAL(ENABLE_DOC, test "$enable_doc" != "no")
141
142 AC_ARG_ENABLE(tests,
143   AS_HELP_STRING([--disable-tests], [don't compile or run any tests]),
144     enable_tests=$enableval, enable_tests=yes)
145 AM_CONDITIONAL(ENABLE_TESTS, test "$enable_tests" != "no")
146
147 GTK_DOC_CHECK(1.1)
148 AM_GNU_GETTEXT([external])
149 AM_GNU_GETTEXT_VERSION([0.18])
150
151 AC_C_BIGENDIAN
152
153 gl_INIT
154 ggl_INIT
155
156 dnl GCC warnings to enable
157
158 AC_ARG_ENABLE([gcc-warnings],
159   [AS_HELP_STRING([--enable-gcc-warnings],
160                   [turn on lots of GCC warnings (for developers)])],
161   [case $enableval in
162      yes|no) ;;
163      *)      AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
164    esac
165    gl_gcc_warnings=$enableval],
166   [gl_gcc_warnings=no]
167 )
168
169 if test "$gl_gcc_warnings" = yes; then
170   gl_WARN_ADD([-Wframe-larger-than=1024], [WSTACK_CFLAGS])
171
172   nw="$nw -Wsystem-headers"         # Don't let system headers trigger warnings
173   nw="$nw -Wc++-compat"             # We don't care about C++ compilers
174   nw="$nw -Wundef"                  # Warns on '#if GNULIB_FOO' etc in gnulib
175   nw="$nw -Wtraditional"            # Warns on #elif which we use often
176   nw="$nw -Wlogical-op"             # Too many false positives
177   nw="$nw -Wold-style-definition"   # 
178   nw="$nw -Wpadded"                 # Our structs are not padded
179   nw="$nw -Wunreachable-code"       # Too many false positives
180   nw="$nw -Wtraditional-conversion" # Too many warnings for now
181   nw="$nw -Wcast-qual"              # Too many warnings for now
182   nw="$nw -Waggregate-return"       # Too many warnings for now
183   nw="$nw -Wshadow"                 # Too many warnings for now
184   nw="$nw -Wswitch-default"         # Too many warnings for now
185   nw="$nw -Wswitch-enum"            # Too many warnings for now
186   nw="$nw -Wconversion"             # Too many warnings for now
187   nw="$nw -Wsign-conversion"        # Too many warnings for now
188   nw="$nw -Wformat-y2k"             # Too many warnings for now
189   nw="$nw -Woverlength-strings"     # We use some in tests/
190   nw="$nw -Wvla"                    # There is no point to avoid C99 variable length arrays
191   nw="$nw -Wformat-nonliteral"      # Incompatible with gettext _()
192   nw="$nw -Wunsafe-loop-optimizations"
193   nw="$nw -Wstrict-overflow"
194   nw="$nw -Wmissing-noreturn"
195   nw="$nw -Winline"                 # Too compiler dependent
196   nw="$nw -Wsuggest-attribute=pure" # Is it worth using attributes?
197   nw="$nw -Wsuggest-attribute=const" # Is it worth using attributes?
198   nw="$nw -Wsuggest-attribute=noreturn" # Is it worth using attributes?
199   nw="$nw -Wstack-protector"        # Some functions cannot be protected
200   nw="$nw -Wredundant-decls"        # Some files cannot be compiled with that (gl_fd_to_handle)
201
202   gl_MANYWARN_ALL_GCC([ws])
203   gl_MANYWARN_COMPLEMENT(ws, [$ws], [$nw])
204   for w in $ws; do
205     gl_WARN_ADD([$w])
206   done
207
208   gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
209   gl_WARN_ADD([-Wno-format-y2k])     # Too many warnings for now
210   gl_WARN_ADD([-Wno-unused-value]) # warnings for things we don't want to get
211   gl_WARN_ADD([-Wno-unused-result]) # warnings for things we don't want to get
212   gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
213   gl_WARN_ADD([-Wno-stack-protector])  # Some functions cannot be protected
214   gl_WARN_ADD([-Wno-int-to-pointer-cast])  # Some files cannot be compiled with that (gl_fd_to_handle)
215   gl_WARN_ADD([-fdiagnostics-show-option])
216 fi
217
218 AC_SUBST([WERROR_CFLAGS])
219 AC_SUBST([WSTACK_CFLAGS])
220 AC_SUBST([WARN_CFLAGS])
221
222 dnl Programs for compilation or development
223 AC_PROG_LN_S
224 AC_LIBTOOL_WIN32_DLL
225 AC_PROG_LIBTOOL
226
227
228 dnl No fork on MinGW, disable some self-tests until we fix them.
229 dnl Check clock_gettime and pthread_mutex_lock in libc (avoid linking to other libs)
230 AC_CHECK_FUNCS([fork getrusage getpwuid_r nanosleep daemon getpid clock_gettime pthread_mutex_lock iconv localtime vasprintf],,)
231 AM_CONDITIONAL(HAVE_FORK, test "$ac_cv_func_fork" != "no")
232
233 AC_LIB_HAVE_LINKFLAGS(rt,, [#include <time.h>
234 #include <signal.h>
235 ], [timer_create (0,0,0);])
236
237 if test "$ac_cv_func_pthread_mutex_lock" != "yes";then
238   AC_LIB_HAVE_LINKFLAGS(pthread,, [#include <pthread.h>], [pthread_mutex_lock (0);])
239 fi
240
241 if test "$ac_cv_func_nanosleep" != "yes";then
242   AC_LIB_HAVE_LINKFLAGS(rt,, [#include <time.h>], [nanosleep (0, 0);])
243   gnutls_needs_librt=yes
244 fi
245
246 ac_have_unicode=no
247 if test "$ac_cv_func_iconv" != "yes";then
248   AC_LIB_HAVE_LINKFLAGS(iconv,, [#include <iconv.h>], [iconv (0, 0, 0, 0, 0);])
249   if test "$HAVE_LIBICONV" = "yes";then
250     ac_have_unicode=yes
251   fi
252 else
253   ac_have_unicode=yes
254 fi
255
256 if test "$ac_have_unicode" != "yes";then
257   if test "$have_win" = "yes";then
258     ac_have_unicode=yes
259   fi
260 fi
261
262 AC_MSG_CHECKING([whether to build libdane])
263 AC_ARG_ENABLE(libdane,
264     AS_HELP_STRING([--disable-libdane],
265                    [disable the built of libdane]),
266     enable_dane=$enableval, enable_dane=yes)
267 AC_MSG_RESULT($enable_dane)
268
269 if test "$enable_dane" != "no"; then
270     LIBS="$oldlibs -lunbound"
271     AC_MSG_CHECKING([for unbound library])
272     AC_LINK_IFELSE([AC_LANG_PROGRAM([
273                    #include <unbound.h>],[
274                    struct ub_ctx* ctx;
275                    ctx = ub_ctx_create();])],
276                   [AC_MSG_RESULT(yes)
277                    AC_SUBST([UNBOUND_LIBS], [-lunbound])
278                    AC_SUBST([UNBOUND_CFLAGS], [])
279                    AC_DEFINE([HAVE_DANE], 1, [Enable the DANE library])
280                    enable_dane=yes],
281                   [AC_MSG_RESULT(no)
282                    AC_MSG_WARN([[
283 *** 
284 *** libunbound was not found. Libdane will not be built.
285 *** ]])
286                   enable_dane=no])
287     LIBS="$oldlibs"
288 fi
289
290 AM_CONDITIONAL(ENABLE_DANE, test "$enable_dane" = "yes")
291
292 AC_ARG_WITH(unbound-root-key-file, AS_HELP_STRING([--with-unbound-root-key-file],
293                                  [specify the unbound root key file]),
294             unbound_root_key_file="$withval", 
295 if test "$have_win" = yes; then
296     unbound_root_key_file="C:\\Program Files\\Unbound\\root.key"
297 else
298     if test -f /var/lib/unbound/root.key;then
299         unbound_root_key_file="/var/lib/unbound/root.key"
300     else
301         unbound_root_key_file="/etc/unbound/root.key"
302     fi
303 fi
304 )
305
306 AC_DEFINE_UNQUOTED([UNBOUND_ROOT_KEY_FILE],
307   ["$unbound_root_key_file"], [The DNSSEC root key file])
308
309 dnl Check for p11-kit
310 P11_KIT_MINIMUM=0.19.1
311 AC_ARG_WITH(p11-kit,
312         AS_HELP_STRING([--without-p11-kit],
313                 [Build without p11-kit and PKCS#11 support]))
314 if test "$with_p11_kit" != "no"; then
315         PKG_CHECK_MODULES(P11_KIT, [p11-kit-1 >= $P11_KIT_MINIMUM], [with_p11_kit=yes], [with_p11_kit=no])
316         if test "$with_p11_kit" != "no";then
317                 AC_DEFINE([ENABLE_PKCS11], 1, [Build PKCS#11 support])
318                 if test "x$GNUTLS_REQUIRES_PRIVATE" = "x"; then
319                         GNUTLS_REQUIRES_PRIVATE="Requires.private: p11-kit-1"
320                 else
321                         GNUTLS_REQUIRES_PRIVATE="${GNUTLS_REQUIRES_PRIVATE}, p11-kit-1"
322                 fi
323         else
324                 with_p11_kit=no
325                 AC_MSG_WARN([[
326 *** 
327 *** p11-kit >= $P11_KIT_MINIMUM was not found. PKCS #11 support will be disabled.
328 *** You may get it from http://p11-glue.freedesktop.org/p11-kit.html
329 *** ]])
330         fi
331 fi
332
333 AM_CONDITIONAL(ENABLE_PKCS11, test "$with_p11_kit" != "no")
334
335 AC_ARG_WITH(tpm,
336         AS_HELP_STRING([--without-tpm],
337                 [Disable TPM (trousers) support.]),
338                 [with_tpm=$withval], [with_tpm=yes])
339 if test "$with_tpm" != "no"; then
340     LIBS="$oldlibs -ltspi"
341     AC_MSG_CHECKING([for tss library])
342     AC_LINK_IFELSE([AC_LANG_PROGRAM([
343                    #include <trousers/tss.h>
344                    #include <trousers/trousers.h>],[
345                    int err = Tspi_Context_Create((void *)0);
346                    Trspi_Error_String(err);])],
347                   [AC_MSG_RESULT(yes)
348                    AC_SUBST([TSS_LIBS], [-ltspi])
349                    AC_SUBST([TSS_CFLAGS], [])
350                    AC_DEFINE([HAVE_TROUSERS], 1, [Enable TPM])
351                    with_tpm=yes],
352                   [AC_MSG_RESULT(no)
353                    AC_MSG_WARN([[
354 *** 
355 *** trousers was not found. TPM support will be disabled.
356 *** ]])
357                   with_tpm=no])
358     LIBS="$oldlibs"
359 fi
360
361 AM_CONDITIONAL(ENABLE_TROUSERS, test "$with_tpm" != "no")
362
363 LIBOPTS_CHECK([src/libopts])
364 if test "$NEED_LIBOPTS_DIR" == "true";then
365         dnl delete libopts-generated files
366         for i in ${srcdir}/src/*-args.c.bak ${srcdir}/src/*-args.h.bak; do
367                 nam=`echo $i|sed 's/.bak//g'`
368                 if test -f $i;then
369                         cp -f $i $nam
370                 fi
371         done
372         AC_SUBST([AUTOGEN], [/bin/true])
373         enable_local_libopts=yes
374 else
375         enable_local_libopts=no
376 fi
377 AM_CONDITIONAL(NEED_LIBOPTS, test "$enable_local_libopts" = "yes")
378
379 AC_CHECK_TYPE(ssize_t,
380   [
381     DEFINE_SSIZE_T="#include <sys/types.h>"
382     AC_SUBST(DEFINE_SSIZE_T)
383   ], [
384     AC_DEFINE([NO_SSIZE_T], 1, [no ssize_t type was found])
385     DEFINE_SSIZE_T="typedef int ssize_t;"
386     AC_SUBST(DEFINE_SSIZE_T)
387   ], [
388     #include <sys/types.h>
389   ])
390
391 # For minitasn1.
392 AC_CHECK_SIZEOF(unsigned long int, 4)
393 AC_CHECK_SIZEOF(unsigned int, 4)
394
395 AC_ARG_WITH(zlib, AS_HELP_STRING([--without-zlib],
396                                  [disable zlib compression support]),
397             ac_zlib=$withval, ac_zlib=yes)
398 AC_MSG_CHECKING([whether to include zlib compression support])
399 if test x$ac_zlib != xno; then
400  AC_MSG_RESULT(yes)
401  AC_LIB_HAVE_LINKFLAGS(z,, [#include <zlib.h>], [compress (0, 0, 0, 0);])
402  if test x$ac_cv_libz != xyes; then
403    AC_MSG_WARN(
404 *** 
405 *** ZLIB was not found. You will not be able to use ZLIB compression.)
406  fi
407 else
408  AC_MSG_RESULT(no)
409 fi
410
411 PKG_CHECK_EXISTS(zlib, ZLIB_HAS_PKGCONFIG=y, ZLIB_HAS_PKGCONFIG=n)
412
413 if test x$ac_zlib != xno; then
414   if test "$ZLIB_HAS_PKGCONFIG" = "y" ; then
415     if test "x$GNUTLS_REQUIRES_PRIVATE" = x; then
416       GNUTLS_REQUIRES_PRIVATE="Requires.private: zlib"
417     else
418       GNUTLS_REQUIRES_PRIVATE="$GNUTLS_REQUIRES_PRIVATE, zlib"
419     fi
420   fi
421 fi
422 AC_SUBST(GNUTLS_REQUIRES_PRIVATE)
423
424
425
426 AC_ARG_WITH([default-trust-store-pkcs11],
427   [AS_HELP_STRING([--with-default-trust-store-pkcs11=URI],
428     [use the given pkcs11 uri as default trust store])])
429
430 if test "x$with_default_trust_store_pkcs11" != x; then
431   if test "x$with_p11_kit" = xno; then
432     AC_MSG_ERROR([cannot use pkcs11 store without p11-kit])
433   fi
434   AC_DEFINE_UNQUOTED([DEFAULT_TRUST_STORE_PKCS11],
435     ["$with_default_trust_store_pkcs11"], [use the given pkcs11 uri as default trust store])
436 fi
437
438 dnl auto detect http://lists.gnu.org/archive/html/help-gnutls/2012-05/msg00004.html
439 AC_ARG_WITH([default-trust-store-file],
440   [AS_HELP_STRING([--with-default-trust-store-file=FILE],
441     [use the given file default trust store])], with_default_trust_store_file="$withval",
442   [if test "$build" = "$host";then
443   for i in \
444     /etc/ssl/ca-bundle.pem \
445     /etc/ssl/certs/ca-certificates.crt \
446     /etc/pki/tls/cert.pem \
447     /usr/local/share/certs/ca-root-nss.crt \
448     /etc/ssl/cert.pem
449     do
450     if test -e $i; then
451       with_default_trust_store_file="$i"
452       break
453     fi
454   done
455   fi]
456 )
457
458 if test "$with_default_trust_store_file" = "no";then
459   with_default_trust_store_file=""
460 fi
461
462 AC_ARG_WITH([default-crl-file],
463   [AS_HELP_STRING([--with-default-crl-file=FILE],
464     [use the given CRL file as default])])
465
466 if test "x$with_default_trust_store_file" != x; then
467   AC_DEFINE_UNQUOTED([DEFAULT_TRUST_STORE_FILE],
468     ["$with_default_trust_store_file"], [use the given file default trust store])
469 fi
470
471 if test "x$with_default_crl_file" != x; then
472   AC_DEFINE_UNQUOTED([DEFAULT_CRL_FILE],
473     ["$with_default_crl_file"], [use the given CRL file])
474 fi
475
476 dnl Guile bindings.
477 opt_guile_bindings=yes
478 AC_MSG_CHECKING([whether building Guile bindings])
479 AC_ARG_ENABLE(guile,
480         AS_HELP_STRING([--enable-guile], [build GNU Guile bindings]),
481 opt_guile_bindings=$enableval)
482 AC_MSG_RESULT($opt_guile_bindings)
483
484 AC_ARG_WITH([guile-site-dir],
485   [AS_HELP_STRING([--with-guile-site-dir],
486      [use the given directory as the Guile site (use with care)])])
487
488 if test "$opt_guile_bindings" = "yes"; then
489    AC_MSG_RESULT([***
490 *** Detecting GNU Guile...
491 ])
492
493    AC_PATH_PROG([guile_snarf], [guile-snarf])
494    if test "x$guile_snarf" = "x"; then
495       AC_MSG_WARN([`guile-snarf' from Guile 1.8 not found.  Guile bindings not built.])
496       opt_guile_bindings=no
497    else
498       GUILE_PROGS
499       GUILE_FLAGS
500
501       save_CFLAGS="$CFLAGS"
502       save_LIBS="$LIBS"
503       CFLAGS="$CFLAGS $GUILE_CFLAGS"
504       LIBS="$LIBS $GUILE_LDFLAGS"
505       AC_MSG_CHECKING([whether GNU Guile is recent enough])
506       AC_LINK_IFELSE([AC_LANG_PROGRAM([], [scm_from_locale_string ("")])],
507         [], [opt_guile_bindings=no])
508       CFLAGS="$save_CFLAGS"
509       LIBS="$save_LIBS"
510
511       if test "$opt_guile_bindings" = "yes"; then
512         AC_MSG_RESULT([yes])
513         case "x$with_guile_site_dir" in 
514              xno)
515                 # Use the default $(GUILE_SITE).
516                 GUILE_SITE_DIR
517                 ;;
518              x|xyes)
519                 # Automatically derive $(GUILE_SITE) from $(pkgdatadir).  This
520                 # hack is used to allow `distcheck' to work (see
521                 # `DISTCHECK_CONFIGURE_FLAGS' in the top-level `Makefile.am').
522                 GUILE_SITE="\$(datadir)/guile/site"
523                 AC_SUBST(GUILE_SITE)
524                 ;;
525              *)
526                 # Use the user-specified directory as $(GUILE_SITE).
527                 GUILE_SITE="$with_guile_site_dir"
528                 AC_SUBST(GUILE_SITE)
529                 ;;
530         esac
531         AC_MSG_CHECKING([whether gcc supports -fgnu89-inline])
532         _gcc_cflags_save="$CFLAGS"
533         CFLAGS="${CFLAGS} -fgnu89-inline"
534         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
535                           gnu89_inline=yes, gnu89_inline=no)
536         AC_MSG_RESULT($gnu89_inline)
537         CFLAGS="$_gcc_cflags_save"
538
539         # Optional Guile functions.
540         save_CFLAGS="$CFLAGS"
541         save_LIBS="$LIBS"
542         CFLAGS="$CFLAGS $GUILE_CFLAGS"
543         LIBS="$LIBS $GUILE_LDFLAGS"
544         AC_CHECK_FUNCS([scm_gc_malloc_pointerless])
545         CFLAGS="$save_CFLAGS"
546         LIBS="$save_LIBS"
547
548         # The place where guile-gnutls.la will go.
549         AC_MSG_CHECKING([the Guile effective version])
550         guile_effective_version="`$GUILE -c '(display (effective-version))'`"
551         AC_MSG_RESULT([$guile_effective_version])
552         guileextensiondir="$libdir/guile/$guile_effective_version"
553         AC_SUBST([guileextensiondir])
554       else
555         AC_MSG_RESULT([no])
556         AC_MSG_WARN([A sufficiently recent GNU Guile not found.  Guile bindings not built.])
557         opt_guile_bindings=no
558       fi
559    fi
560 fi
561 AM_CONDITIONAL(HAVE_GUILE, test "$opt_guile_bindings" = "yes")
562
563 LIBGNUTLS_LIBS="-L${libdir} -lgnutls $LIBS"
564 LIBGNUTLS_CFLAGS="-I${includedir}"
565 AC_SUBST(LIBGNUTLS_LIBS)
566 AC_SUBST(LIBGNUTLS_CFLAGS)
567
568 AM_CONDITIONAL(NEEDS_LIBRT, test "$gnutls_needs_librt" = "yes")
569
570 AC_DEFINE([GNUTLS_COMPAT_H], 1, [Make sure we don't use old features in code.])
571 AC_DEFINE([GNUTLS_INTERNAL_BUILD], 1, [We allow temporarily usage of deprecated functions - until they are removed.])
572
573 AC_DEFINE([fread_file], [_gnutls_fread_file], [static lib rename])
574 AC_DEFINE([read_file], [_gnutls_read_file], [static lib rename])
575 AC_DEFINE([read_binary_file], [_gnutls_read_binary_file], [static lib rename])
576
577 dnl Crywrap dependencies
578    AC_MSG_RESULT([***
579 *** Checking dependencies for crywrap...
580 ])
581
582 crywrap=no
583
584 if test "$have_win" != "yes"; then
585
586 AC_CHECK_HEADERS([arpa/inet.h netinet/in.h sys/select.h sys/types.h sys/wait.h])
587
588 dnl **********************
589 dnl * Typedefs & co
590 dnl **********************
591 AC_CACHE_CHECK([return type of signal handlers],[ac_cv_type_signal],[AC_COMPILE_IFELSE(
592 [AC_LANG_PROGRAM([#include <sys/types.h>
593 #include <signal.h>
594 ],
595                  [return *(signal (0, 0)) (0) == 1;])],
596                    [ac_cv_type_signal=int],
597                    [ac_cv_type_signal=void])])
598 AC_DEFINE_UNQUOTED([RETSIGTYPE],[$ac_cv_type_signal],[Define as the return type of signal handlers
599                     (`int' or `void').])
600
601 AC_FUNC_SELECT_ARGTYPES
602 AC_CHECK_FUNCS([alarm atexit dup2 epoll_create kqueue memchr memset munmap \
603                 putenv regcomp scandir select socket strcasecmp strchr \
604                 strdup strerror strncasecmp strrchr strstr strtoul uname])
605
606 AC_ARG_ENABLE(crywrap,
607         AS_HELP_STRING([--disable-crywrap], [unconditionally disable the crywrap TLS proxy service]))
608
609  libidn=no
610
611  if test "x$enable_crywrap" != "xno" ; then
612         PKG_CHECK_MODULES(LIBIDN, libidn >= 0.0.0, [libidn=yes], [libidn=no])
613         AC_CHECK_FUNCS([argp_usage],[ac_argp=yes],[ac_argp=no])
614  fi
615
616  if test "x$libidn" != "xno" && test "$ac_cv_func_daemon" != "no" && test "$ac_argp" != "no";then
617   crywrap=yes
618  fi
619
620 fi
621
622 AM_CONDITIONAL(ENABLE_CRYWRAP, test "x$crywrap" != "xno")
623
624 dnl end of crywrap requirements
625
626 AC_CONFIG_FILES([guile/pre-inst-guile], [chmod +x guile/pre-inst-guile])
627 AC_CONFIG_FILES([
628   Makefile
629   doc/Makefile
630   doc/credentials/Makefile
631   doc/credentials/openpgp/Makefile
632   doc/credentials/srp/Makefile
633   doc/credentials/x509/Makefile
634   doc/cyclo/Makefile
635   doc/doxygen/Doxyfile
636   doc/examples/Makefile
637   doc/latex/Makefile
638   doc/manpages/Makefile
639   doc/reference/Makefile
640   doc/reference/version.xml
641   doc/scripts/Makefile
642   extra/Makefile
643   extra/includes/Makefile
644   libdane/Makefile
645   libdane/includes/Makefile
646   libdane/gnutls-dane.pc
647   gl/Makefile
648   gl/tests/Makefile
649   guile/Makefile
650   guile/modules/Makefile
651   guile/src/Makefile
652   guile/tests/Makefile
653   lib/Makefile
654   lib/accelerated/Makefile
655   lib/accelerated/x86/Makefile
656   lib/algorithms/Makefile
657   lib/auth/Makefile
658   lib/ext/Makefile
659   lib/extras/Makefile
660   lib/gnutls.pc
661   lib/includes/Makefile
662   lib/includes/gnutls/gnutls.h
663   lib/minitasn1/Makefile
664   lib/nettle/Makefile
665   lib/opencdk/Makefile
666   lib/openpgp/Makefile
667   lib/x509/Makefile
668   po/Makefile.in
669   src/Makefile
670   src/crywrap/Makefile
671   src/gl/Makefile
672   tests/Makefile
673   tests/cert-tests/Makefile
674   tests/dsa/Makefile
675   tests/dtls/Makefile
676   tests/srp/Makefile
677   tests/ecdsa/Makefile
678   tests/key-id/Makefile
679   tests/openpgp-certs/Makefile
680   tests/pkcs1-padding/Makefile
681   tests/pkcs12-decode/Makefile
682   tests/pkcs8-decode/Makefile
683   tests/rsa-md5-collision/Makefile
684   tests/safe-renegotiation/Makefile
685   tests/scripts/Makefile
686   tests/sha2/Makefile
687   tests/slow/Makefile
688   tests/suite/Makefile
689   tests/userid/Makefile
690 ])
691
692 AC_OUTPUT
693
694 dnl  Warning flags:        errors: ${WERROR_CFLAGS} warnings: ${WARN_CFLAGS}
695 dnl  Valgrind:             $opt_valgrind_tests ${VALGRIND}
696 AC_MSG_NOTICE([summary of build options:
697
698   version:              ${VERSION} shared $LT_CURRENT:$LT_REVISION:$LT_AGE
699   Host/Target system:   ${host}
700   Build system:         ${build}
701   Install prefix:       ${prefix}
702   Compiler:             ${CC}
703   CFlags:               ${CFLAGS}
704   Library types:        Shared=${enable_shared}, Static=${enable_static}
705 ])
706
707 AC_MSG_NOTICE([External hardware support:
708
709   /dev/crypto:          $enable_cryptodev
710   Hardware accel:       $hw_accel
711   PKCS#11 support:      $with_p11_kit
712   TPM support:          $with_tpm
713 ])
714
715 AC_MSG_NOTICE([Optional features:
716 (note that included applications might not compile properly
717 if features are disabled)
718
719   DTLS-SRTP support:    $ac_enable_srtp
720   ALPN support:         $ac_enable_alpn
721   OCSP support:         $ac_enable_ocsp
722   OpenPGP support:      $ac_enable_openpgp
723   SRP support:          $ac_enable_srp
724   PSK support:          $ac_enable_psk
725   DHE support:          $ac_enable_dhe
726   ECDHE support:        $ac_enable_ecdhe
727   Anon auth support:    $ac_enable_anon
728   Heartbeat support:    $ac_enable_heartbeat
729   RSA-EXPORT compat:    $ac_enable_rsa_export
730   Unicode support:      $ac_have_unicode
731   Self checks:          $enable_self_checks
732 ])
733
734 AC_MSG_NOTICE([Optional applications:
735
736   crywrap app:          $libidn
737   local libopts:        ${enable_local_libopts}
738   local libtasn1:       ${included_libtasn1}
739 ])
740
741 AC_MSG_NOTICE([Optional libraries:
742
743   Guile wrappers:       $opt_guile_bindings
744   C++ library:          $use_cxx
745   DANE library:         $enable_dane
746   OpenSSL compat:       $enable_openssl
747 ])
748
749 AC_MSG_NOTICE([System files:
750
751   Trust store pkcs:     $with_default_trust_store_pkcs11
752   Trust store file:     $with_default_trust_store_file
753   CRL file:             $with_default_crl_file
754   DNSSEC root key file: $unbound_root_key_file
755 ])
756
757 if test ! -f "$unbound_root_key_file"; then
758 AC_MSG_WARN([[
759 *** 
760 *** The DNSSEC root key file in $unbound_root_key_file was not found. 
761 *** This file is needed for the verification of DNSSEC responses.
762 *** Use the command: unbound-anchor -a "$unbound_root_key_file"
763 *** to generate or update it.
764 *** ]])
765 fi