1dnl Template file for GNU Autoconf
2dnl Copyright (C) 2015-2021 Free Software Foundation, Inc.
3
4dnl This program is free software; you can redistribute it and/or modify
5dnl it under the terms of the GNU General Public License as published by
6dnl the Free Software Foundation; either version 3 of the License, or
7dnl (at your option) any later version.
8
9dnl This program is distributed in the hope that it will be useful,
10dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
11dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12dnl GNU General Public License for more details.
13
14dnl You should have received a copy of the GNU General Public License
15dnl along with this program.  If not, see <http://www.gnu.org/licenses/>.
16
17# Process this file with autoconf to produce a configure script.
18
19dnl Error if AX_CODE_COVERAGE if missing.
20m4_pattern_forbid([^_?AX_])
21m4_pattern_allow([AX_CHECK_GNU_MAKE_HEADLINE])
22m4_pattern_allow([_AX_CODE_COVERAGE_GCOV_PROG_WITH])
23
24CFLAGS=$CFLAGS
25LDFLAGS=$LDFLAGS
26
27AC_PREREQ([2.69])
28AC_INIT([wget2],[2.0.0],[bug-wget@gnu.org],[wget2],[https://savannah.gnu.org/projects/wget])
29
30AC_CONFIG_MACRO_DIR([m4])
31AC_CONFIG_AUX_DIR([build-aux])
32
33AM_INIT_AUTOMAKE([subdir-objects parallel-tests gnu -Wno-portability dist-lzip])
34
35AC_CANONICAL_HOST
36case $host_os in
37  linux*)
38    ;;
39  mingw*)
40    XTRA_CFLAGS="-Wno-attributes -fno-PIC"
41#    XTRA_LIBS=-lws2_32
42    ;;
43  cygwin*)
44    XTRA_CFLAGS="-Wno-char-subscripts -fno-PIC"
45    ;;
46#  *)
47#    AC_MSG_ERROR([$host_os is not currently supported])
48#    ;;
49esac
50
51# Append EXTRA_CFLAGS to CFLAGS, if defined.
52test -n "$EXTRA_CFLAGS" && CFLAGS="$CFLAGS $EXTRA_CFLAGS"
53test -n "$XTRA_CFLAGS" && CFLAGS="$CFLAGS $XTRA_CFLAGS"
54
55AC_USE_SYSTEM_EXTENSIONS
56AC_PROG_CC
57if test "$ac_cv_prog_cc_c99" = "no"; then
58  AC_MSG_ERROR(Compiler does not support C99. Aborting.)
59fi
60
61gl_EARLY
62gl_INIT
63
64AX_CODE_COVERAGE
65
66LT_PREREQ([2.2])
67LT_INIT([dlopen])
68
69# Define these substitutions here to keep all version information in one place.
70# For information on how to properly maintain the library version information,
71# refer to the libtool manual, section "Updating library version information":
72# https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
73#
74# 1. Start with version information of ‘0:0:0’ for each libtool library.
75# 2. Update the version information only immediately before a public release of your software. More frequent updates are unnecessary, and only guarantee that the current interface number gets larger faster.
76# 3. If the library source code has changed at all since the last update, then increment revision (‘c:r:a’ becomes ‘c:r+1:a’).
77# 4. If any interfaces have been added, removed, or changed since the last update, increment current, and set revision to 0.
78# 5. If any interfaces have been added since the last public release, then increment age.
79# 6. If any existing interfaces have been removed or changed since the last public release, then set age to 0.
80AC_SUBST([LIBWGET_SO_VERSION], [1:0:0])
81AC_SUBST([LIBWGET_VERSION], [2.0.0])
82
83#
84# Generate version defines for include file
85#
86AC_SUBST([LIBWGET_VERSION_MAJOR], [`echo $LIBWGET_VERSION|cut -d'.' -f1`])
87AC_SUBST([LIBWGET_VERSION_MINOR], [`echo $LIBWGET_VERSION|cut -d'.' -f2`])
88AC_SUBST([LIBWGET_VERSION_PATCH], [`echo $LIBWGET_VERSION|cut -d'.' -f3`])
89AC_SUBST([LIBWGET_VERSION_NUMBER], [`printf '0x%02x%02x%02x' $LIBWGET_VERSION_MAJOR $LIBWGET_VERSION_MINOR $LIBWGET_VERSION_PATCH`])
90AC_CONFIG_FILES([include/wget/wgetver.h])
91
92AC_CONFIG_SRCDIR([src/wget.c])
93AC_CONFIG_HEADERS([config.h])
94
95# Non-verbose make
96m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
97
98# Check for large file support.  This check needs to come fairly
99# early because it could (in principle) affect whether functions and
100# headers are available, whether they work, etc.
101AC_SYS_LARGEFILE
102AC_CHECK_SIZEOF(off_t)
103
104# Checks for programs.
105
106AC_PROG_LEX([noyywrap])
107AC_PROG_INSTALL
108AC_PROG_LN_S
109
110# enable all possible compiler warnings in WARN_FLAGS
111#
112# to enable by default: create a file '.manywarnings'
113# enable explicitly : ./configure --enable-manywarnings
114# disable explicitly: ./configure --disable-manywarnings
115wget_MANYWARNINGS(WARN_CFLAGS, C)
116
117if test -n "$WARN_CFLAGS"; then
118  if test "$CCNAME" = "gcc"; then
119    # Set up list of unwanted warnings
120    nw=
121    nw="$nw -Wsystem-headers"       # System headers may trigger lot's of useless warnings
122    nw="$nw -Wvla"                  # This project is C99
123    nw="$nw -Wstack-protector"
124    nw="$nw -Wmissing-field-initializer"
125    nw="$nw -Wtraditional"
126    nw="$nw -Wtraditional-conversion"
127    nw="$nw -Wc++-compat"
128    nw="$nw -Wcast-qual"
129    nw="$nw -Wconversion"
130    nw="$nw -Wsign-conversion"
131    nw="$nw -Wunsuffixed-float-constants"
132    nw="$nw -Wdeclaration-after-statement" # C89 only, messing up gcc < 5
133    nw="$nw -Wcast-function-type" # gcc 8, very noisy
134    nw="$nw -Wabi" # gcc 8, very noisy
135    nw="$nw -Wunused-macros" # triggers in auto-generated lex css parser, #pragma doesn't work, conflicts with -Werror
136    nw="$nw -Wchkp" # gcc-9 says: not supported any more (but emits it via -Q --help=C)"
137    if test "$cross_compiling" = yes; then
138      nw="$nw -Wformat"
139    fi
140
141    # remove unwanted warn flags
142    wget_WORD_REMOVE([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
143
144    # add more flags as you like
145    if test $GCC_VERSION -ge 5; then
146      WARN_CFLAGS="$WARN_CFLAGS -fdiagnostics-color=always"
147    fi
148    if test "$cross_compiling" = yes; then
149      WARN_CFLAGS="$WARN_CFLAGS -Wno-format"
150    fi
151    if test $GCC_VERSION -ge 8; then
152      WARN_CFLAGS="$WARN_CFLAGS -Wno-cast-function-type"
153    fi
154    # WARN_CFLAGS="$WARN_CFLAGS -Werror"
155
156    # We use a slightly smaller set of warning options for lib/.
157    # Remove the following and save the result in GNULIB_WARN_CFLAGS.
158    # Removing is not enough if these switches are implicitly set by other
159    #  flags like -Wall or -Wextra. We have to explicitly unset them
160    #  with -Wno-....
161    nw=
162    nw="$nw -Wpedantic"
163    nw="$nw -Wsign-compare"
164    nw="$nw -Wunused-parameter"
165    nw="$nw -Wswitch-default"
166    nw="$nw -Wformat-nonliteral"
167    nw="$nw -Wsuggest-attribute=pure"
168    nw="$nw -Wunsafe-loop-optimizations"
169    nw="$nw -Wundef"
170    nw="$nw -Wswitch-enum"
171    nw="$nw -Wbad-function-cast"
172    nw="$nw -Wredundant-decls"
173    nw="$nw -Werror"
174    wget_WORD_REMOVE([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
175    wget_WORD_REMOVE([CFLAGS], [$CFLAGS], [-Werror])
176
177    # disable options implicitly set by other options
178    GNULIB_WARN_CFLAGS="-Wno-error $GNULIB_WARN_CFLAGS"
179    GNULIB_WARN_CFLAGS="$GNULIB_WARN_CFLAGS -Wno-sign-compare -Wno-unused-parameter -Wno-alloca"
180    GNULIB_WARN_CFLAGS="$GNULIB_WARN_CFLAGS -Wno-float-conversion -Wno-cast-function-type"
181    if test "$cross_compiling" = yes; then
182      GNULIB_WARN_CFLAGS="$GNULIB_WARN_CFLAGS -Wno-incompatible-pointer-types"
183    fi
184
185  elif test "$CCNAME" = "clang"; then
186    # setup flags for this project
187    WARN_CFLAGS="$WARN_CFLAGS -Wno-system-headers -Wno-vla -Wno-cast-qual -Wno-padded"
188    WARN_CFLAGS="$WARN_CFLAGS -Wno-reserved-id-macro -Wno-sign-conversion  -Wno-disabled-macro-expansion"
189    WARN_CFLAGS="$WARN_CFLAGS -Wno-documentation -Wno-documentation-unknown-command"
190    WARN_CFLAGS="$WARN_CFLAGS -Wno-covered-switch-default -Wno-unused-macros"
191    WARN_CFLAGS="$WARN_CFLAGS -Wno-missing-field-initializers"
192    WARN_CFLAGS="$WARN_CFLAGS -Wno-nullability-extension -Wno-nullability-completeness"
193
194    CLANG_VERSION=$($CC -dumpversion | cut -f1 -d.)
195    if test $CLANG_VERSION -ge 11; then
196      WARN_CFLAGS="$WARN_CFLAGS -Wno-implicit-int-float-conversion"
197    fi
198
199    # remove all flags from WARN_FLAGS that are already in CFLAGS
200    # wget_WORD_REMOVE([WARN_CFLAGS], [$WARN_CFLAGS], [$CFLAGS])
201
202    wget_WORD_REMOVE([CFLAGS], [$CFLAGS], [-Werror])
203
204    # disable verbose options
205    GNULIB_WARN_CFLAGS="-Wno-error $GNULIB_WARN_CFLAGS"
206    GNULIB_WARN_CFLAGS="$WARN_CFLAGS -Wno-sign-compare -Wno-unused-parameter -Wno-undef -Wno-format-nonliteral"
207    GNULIB_WARN_CFLAGS="$GNULIB_WARN_CFLAGS -Wno-conversion -Wno-disabled-macro-expansion -Wno-c++98-compat"
208    GNULIB_WARN_CFLAGS="$GNULIB_WARN_CFLAGS -Wno-gnu-statement-expression -Wno-shorten-64-to-32 -Wno-switch-enum"
209    GNULIB_WARN_CFLAGS="$GNULIB_WARN_CFLAGS -Wno-unused-macros -Wno-missing-field-initializers"
210    GNULIB_WARN_CFLAGS="$GNULIB_WARN_CFLAGS -Wno-gnu-zero-variadic-macro-arguments -Wno-conditional-uninitialized"
211    GNULIB_WARN_CFLAGS="$GNULIB_WARN_CFLAGS -Wno-comma -Wno-assign-enum -Wno-unreachable-code -Wno-error"
212    GNULIB_WARN_CFLAGS="$GNULIB_WARN_CFLAGS -Wno-missing-field-initializers -Wno-used-but-marked-unused"
213
214    # remove all flags from GNULIB_WARN_FLAGS that are already in CFLAGS
215    # wget_WORD_REMOVE([GNULIB_WARN_CFLAGS], [$GNULIB_WARN_CFLAGS], [$CFLAGS])
216  fi
217
218  AC_SUBST([MANYWARNINGS], [-DWGET_MANYWARNINGS])
219  AC_SUBST([WARN_CFLAGS])
220  AC_SUBST([GNULIB_WARN_CFLAGS])
221fi
222
223AC_ARG_ENABLE([manylibs],
224  [AS_HELP_STRING([--disable-manylibs], [Generate small libraries of libwget functionality groups])],
225  [enable_manylibs=$enableval], [enable_manylibs=yes])
226AM_CONDITIONAL([ENABLE_MANYLIBS], [test "$enable_manylibs" = "yes"])
227
228AC_ARG_ENABLE([fuzzing],
229  [AS_HELP_STRING([--enable-fuzzing], [Turn on fuzzing build (for developers)])],
230  [enable_fuzzing=yes; AC_SUBST([LIB_FUZZING_ENGINE])], [enable_fuzzing=no; LIB_FUZZING_ENGINE=""])
231AM_CONDITIONAL([FUZZING], [test -n "$LIB_FUZZING_ENGINE"])
232
233AC_ARG_ENABLE([fsanitize-ubsan],
234  [AS_HELP_STRING([--enable-fsanitize-ubsan], [Turn on Undefined Behavior Sanitizer (for developers)])],
235  [gl_cc_sanitize_ubsan=yes], [gl_cc_sanitize_ubsan=no])
236
237AC_ARG_ENABLE([fsanitize-asan],
238  [AS_HELP_STRING([--enable-fsanitize-asan], [Turn on Address Sanitizer (for developers) (mutually exclusive with Memory/Thread sanitizer or Valgrind tests)])],
239  [gl_cc_sanitize_asan=yes], [gl_cc_sanitize_asan=no])
240
241AC_ARG_ENABLE([fsanitize-msan],
242  [AS_HELP_STRING([--enable-fsanitize-msan], [Turn on Memory Sanitizer (for developers) (mutually exclusive with Address/Thread sanitizer or Valgrind tests)])],
243  [gl_cc_sanitize_msan=yes], [gl_cc_sanitize_msan=no])
244
245AC_ARG_ENABLE([fsanitize-tsan],
246  [AS_HELP_STRING([--enable-fsanitize-tsan], [Turn on Thread Sanitizer (for developers) (mutually exclusive with Address/Memory sanitizer or Valgrind tests)])],
247  [gl_cc_sanitize_tsan=yes], [gl_cc_sanitize_tsan=no])
248
249
250if test "$gl_cc_sanitize_asan" = yes; then
251  if test "$gl_cc_sanitize_msan" = yes; then
252    AC_MSG_ERROR([Address Sanitizer and Memory Sanitizer are mutually exclusive])
253  elif test "$gl_cc_sanitize_tsan" = yes; then
254    AC_MSG_ERROR([Address Sanitizer and Thread Sanitizer are mutually exclusive])
255  fi
256fi
257
258
259if test "$gl_cc_sanitize_msan" = yes; then
260  if test "$gl_cc_sanitize_tsan" = yes; then
261    AC_MSG_ERROR([Memory Sanitizer and Thread Sanitizer are mutually exclusive])
262  fi
263fi
264
265
266if test "$gl_cc_sanitize_ubsan" = yes; then
267  gl_WARN_ADD([-fsanitize=undefined])
268  gl_WARN_ADD([-fsanitize=bool])
269  gl_WARN_ADD([-fsanitize=alignment])
270  gl_WARN_ADD([-fsanitize=null])
271  gl_WARN_ADD([-fsanitize=enum])
272  gl_WARN_ADD([-fsanitize=bounds-strict])
273
274  # additional clang options, from OSS-Fuzz (20.12.2019)
275  gl_WARN_ADD([-fsanitize=integer])
276  gl_WARN_ADD([-fsanitize=array-bounds])
277  gl_WARN_ADD([-fsanitize=builtin])
278  gl_WARN_ADD([-fsanitize=float-divide-by-zero])
279  gl_WARN_ADD([-fsanitize=function])
280  gl_WARN_ADD([-fsanitize=integer-divide-by-zero])
281  gl_WARN_ADD([-fsanitize=object-size])
282  gl_WARN_ADD([-fsanitize=return])
283  gl_WARN_ADD([-fsanitize=returns-nonnull-attribute])
284  gl_WARN_ADD([-fsanitize=shift])
285  gl_WARN_ADD([-fsanitize=signed-integer-overflow])
286  gl_WARN_ADD([-fsanitize=unsigned-integer-overflow])
287  gl_WARN_ADD([-fsanitize=unreachable])
288  gl_WARN_ADD([-fsanitize=vla-bound])
289  gl_WARN_ADD([-fsanitize=vptr])
290fi
291
292if test "$gl_cc_sanitize_asan" = yes; then
293  gl_WARN_ADD([-fsanitize=address])
294  gl_WARN_ADD([-fsanitize=leak])
295  gl_WARN_ADD([-fsanitize=nonnull-attribute])
296  gl_WARN_ADD([-fno-omit-frame-pointer])
297
298  # additional clang option
299  gl_WARN_ADD([-fsanitize-address-use-after-scope])
300fi
301
302if test "$gl_cc_sanitize_ubsan" = yes || test "$gl_cc_sanitize_asan" = yes; then
303  gl_WARN_ADD([-fno-sanitize-recover=all])
304  gl_WARN_ADD([-fsanitize-recover=unsigned-integer-overflow])
305fi
306
307if test "$gl_cc_sanitize_msan" = yes; then
308  # clang options
309  gl_WARN_ADD([-fsanitize=memory])
310  gl_WARN_ADD([-fsanitize-memory-track-origins])
311
312  # gcc options
313  if test "$CCNAME" = "gcc"; then
314    gl_WARN_ADD([-fsanitize=leak])
315  fi
316
317  gl_WARN_ADD([-fno-omit-frame-pointer])
318  gl_WARN_ADD([-fPIE])
319fi
320
321if test "$gl_cc_sanitize_tsan" = yes; then
322  gl_WARN_ADD([-fsanitize=thread -fPIC -pie])
323fi
324
325#
326# Assertions
327#
328AC_ARG_ENABLE([assert],
329  [AS_HELP_STRING([--enable-assert], [Enable assertions in code (for developers)])],
330  [ENABLE_ASSERT=$enableval], [ENABLE_ASSERT=no])
331
332AS_IF([test "$ENABLE_ASSERT" != "yes"], [CFLAGS="-DNDEBUG $CFLAGS"], [])
333
334#
335# xattr
336#
337AC_ARG_ENABLE([xattr],
338  [AS_HELP_STRING([--disable-xattr], [disable support for POSIX Extended Attributes])],
339  [ENABLE_XATTR=$enableval],
340  [ENABLE_XATTR=yes])
341
342case "$host_os" in
343  *linux* | *darwin*) xattr_syscalls="fsetxattr" ;;
344  freebsd*)           xattr_syscalls="extattr_set_fd" ;;
345  *)  AC_MSG_NOTICE([Disabling Extended Attribute support: your system is not known to support extended attributes.])
346      ENABLE_XATTR=no
347esac
348
349if test "${ENABLE_XATTR}" = "yes" ; then
350  AC_CHECK_FUNCS([$xattr_syscalls], [], [
351    AC_MSG_NOTICE([Disabling Extended Attribute support: your system does not support $xattr_syscalls])
352    ENABLE_XATTR=no
353  ])
354fi
355
356test "${ENABLE_XATTR}" = "yes" && AC_DEFINE([ENABLE_XATTR], 1,
357    [Define if you want file meta-data storing into POSIX Extended Attributes compiled in.])
358
359#
360# Gettext
361#
362m4_ifdef([AM_GNU_GETTEXT], [
363  AM_GNU_GETTEXT([external],[need-ngettext])
364  AC_CONFIG_FILES([po/Makefile.in])
365  have_po=yes
366], [
367  have_po=no
368])
369m4_ifdef([AM_GNU_GETTEXT_VERSION], [
370#do not indent here
371AM_GNU_GETTEXT_VERSION([0.19.3])
372])
373AM_CONDITIONAL([HAVE_PO], [ test "$have_po" = "yes" ])
374
375#
376# check for doxygen and pandoc
377#
378AC_ARG_ENABLE(doc, AS_HELP_STRING([--disable-doc], [don t generate any documentation]),
379  enable_doc=$enableval, enable_doc=yes)
380if test "$enable_doc" = yes; then
381  AC_CHECK_PROGS([DOXYGEN], [doxygen-not-found])
382  AC_CHECK_PROGS([PANDOC], [pandoc])
383
384  if test -n "$DOXYGEN" || test -n "$PANDOC"; then
385    LIBWGET_DOCS_INFO="yes (found:"
386    if test -n "$DOXYGEN"; then
387      LIBWGET_DOCS_INFO="$LIBWGET_DOCS_INFO Doxygen)"
388	else
389	  LIBWGET_DOCS_INFO="no"
390    fi
391    WGET2_DOCS_INFO="yes (found:"
392    if test -n "$PANDOC"; then
393      WGET2_DOCS_INFO="$WGET2_DOCS_INFO Pandoc)"
394	else
395	  WGET2_DOCS_INFO="no"
396    fi
397  else
398    DOCS_INFO="no (neither Doxygen nor Pandoc found)"
399  fi
400else
401  DOCS_INFO="no (disabled)"
402fi
403AM_CONDITIONAL([WITH_DOCS], [ test -n "$DOXYGEN" || test -n "$PANDOC" ])
404AM_CONDITIONAL([WITH_DOXYGEN], [ test -n "$DOXYGEN" ])
405AM_CONDITIONAL([WITH_PANDOC], [ test -n "$PANDOC" ])
406
407#
408# enable creation of man pages
409#
410#AC_ARG_ENABLE(man,[AS_HELP_STRING([--enable-man],
411#                                  [generate man pages [default=auto]])],enable_man=yes,enable_man=no)
412
413#AM_CONDITIONAL(ENABLE_MAN, test "$enable_man" != "no")
414#AC_MSG_CHECKING([whether to generate man pages])
415#AS_IF([test "$enable_man" != no], [
416#  AC_MSG_RESULT([yes])
417#], [
418#  AC_MSG_RESULT([no])
419#])
420
421
422# Check for ldconfig
423AC_CHECK_PROG(LDCONFIG, ldconfig, ldconfig, :)
424
425# Check for valgrind
426AC_ARG_ENABLE(valgrind-tests,
427  AS_HELP_STRING([--enable-valgrind-tests], [enable using Valgrind for tests (mutually exclusive with Address/Memory/Thread sanitizer)]),
428  [ac_enable_valgrind=$enableval], [ac_enable_valgrind=no])
429AS_IF([test "${ac_enable_valgrind}" != "no"], [
430  AC_CHECK_PROG(HAVE_VALGRIND, valgrind, yes, no)
431  AS_IF([test "$HAVE_VALGRIND" = "yes"], [
432    VALGRIND_TESTS="1"
433    AC_SUBST(VALGRIND_TESTS)
434    TESTS_INFO="Test suite will be run under Valgrind"
435  ], [
436    TESTS_INFO="Valgrind not found"
437  ])
438], [
439  TESTS_INFO="Valgrind testing not enabled"
440])
441
442
443if test "$VALGRIND_TESTS" = 1; then
444  if test "$gl_cc_sanitize_asan" = yes; then
445    AC_MSG_ERROR([Valgrind and Address Sanitizer are mutually exclusive])
446  elif test "$gl_cc_sanitize_msan" = yes; then
447    AC_MSG_ERROR([Valgrind and Memory Sanitizer are mutually exclusive])
448  elif test "$gl_cc_sanitize_tsan" = yes; then
449    AC_MSG_ERROR([Valgrind and Thread Sanitizer are mutually exclusive])
450  fi
451fi
452
453# check for pandoc (documentation converter)
454
455# check for gcc's atomic read-add-write functionality
456AC_MSG_CHECKING([for __sync_fetch_and_add (int)])
457AC_LINK_IFELSE(
458   [AC_LANG_SOURCE([
459    int main(void) { return __sync_fetch_and_add((int *)0, 0); }
460   ])],
461   [AC_DEFINE([WITH_SYNC_FETCH_AND_ADD], [1], [use __sync_fetch_and_add]) AC_MSG_RESULT([yes])],
462   [AC_MSG_RESULT([no])]
463)
464AC_MSG_CHECKING([for __sync_fetch_and_add (long long)])
465AC_LINK_IFELSE(
466   [AC_LANG_SOURCE([
467    int main(void) { return __sync_fetch_and_add((long long *)0, 0); }
468   ])],
469   [AC_DEFINE([WITH_SYNC_FETCH_AND_ADD_LONGLONG], [1], [use __sync_fetch_and_add]) AC_MSG_RESULT([yes])],
470   [AC_MSG_RESULT([no])]
471)
472
473PKG_PROG_PKG_CONFIG
474
475AC_ARG_WITH(ssl, AS_HELP_STRING([--with-ssl], [Use SSL/TLS with specified library. Options: 'gnutls' (default), 'openssl', 'wolfssl' or 'none']), with_ssl=$withval, with_ssl="yes")
476
477AS_IF([test "$with_ssl" = "gnutls" || test "$with_ssl" = "yes"], [
478  PKG_CHECK_MODULES([GNUTLS], [gnutls], [
479    with_gnutls=yes
480    LIBS="$GNUTLS_LIBS $LIBS"
481    CFLAGS="$GNUTLS_CFLAGS $CFLAGS"
482    AC_DEFINE([WITH_GNUTLS], [1], [Use GnuTLS])
483    AC_DEFINE([WITH_GNUTLS_IN_TESTSUITE], [1], [GnuTLS is available for test suite.])
484    AC_SEARCH_LIBS(gnutls_hash, gnutls, [with_gnutls_hash=yes])
485    AS_IF([test "$with_gnutls_hash" = "yes"],
486      [AC_CHECK_HEADERS([gnutls/crypto.h], [], [], [#include <gnutls/gnutls.h>])])
487    AC_CHECK_HEADERS([gnutls/ocsp.h],
488      [AC_DEFINE([WITH_OCSP], [1], [OCSP is supported.])
489       AC_DEFINE([WITH_GNUTLS_OCSP], [1], [GnuTLS OCSP is supported for test suite.])],
490      [AC_MSG_WARN(*** Header file gnutls/ocsp.h was not found. OCSP will be disabled.)])
491    AC_CHECK_FUNCS(gnutls_srp_server_get_username gnutls_transport_get_int)
492  ], [
493    AC_SEARCH_LIBS(gnutls_global_init, gnutls,
494      [with_gnutls=yes],
495      [AC_MSG_WARN(*** GNUTLS was not found. Fallback to libnettle for hashing and checksumming.)])
496  ])
497])
498
499AS_IF([test "$with_ssl" = "openssl" || (test "$with_ssl" = "yes" && test "$with_gnutls" != "yes")], [
500  PKG_CHECK_MODULES([OPENSSL], [openssl], [
501    with_openssl=yes
502    LIBS="$OPENSSL_LIBS $LIBS"
503    CFLAGS="$OPENSSL_CFLAGS $CFLAGS"
504    AC_DEFINE([WITH_OPENSSL], [1], [Use OpenSSL])
505  ], [
506    AC_SEARCH_LIBS(SSL_CTX_new, ssl,
507      [with_openssl=yes; AC_DEFINE([WITH_OPENSSL], [1], [Use OpenSSL])],
508      [AC_MSG_WARN(*** OpenSSL was not found.)
509    ])
510  ])
511
512  AS_IF([test "$with_openssl" = "yes"], [
513    AC_CHECK_HEADERS([openssl/ssl.h])
514    AC_CHECK_HEADERS([openssl/x509_vfy.h])
515    AC_CHECK_HEADERS([openssl/ocsp.h],
516      [AC_DEFINE([WITH_OCSP], [1], [OCSP is supported])],
517      [AC_MSG_WARN(*** Header file openssl/ocsp.h was not found. OCSP will be disabled.)])
518
519    AC_CHECK_FUNCS(SSL_new X509_STORE_add_lookup)
520
521    AC_SEARCH_LIBS(EVP_MD_CTX_new, crypto,
522      [with_libcrypto=yes; AC_DEFINE([WITH_LIBCRYPTO], [1], [Use libcrypto])],
523      [with_libcrypto=no; AC_MSG_WARN(*** LIBCRYPTO was not found. Fallback to libwolfcrypt for hashing and checksumming.)
524    ])
525  ])
526])
527
528AS_IF([test "$with_ssl" = "wolfssl" || (test "$with_ssl" = "yes" && test "$with_gnutls" != "yes" && test "$with_openssl" != "yes")], [
529  PKG_CHECK_MODULES([WOLFSSL], [wolfssl], [
530    with_wolfssl=yes
531    LIBS="$WOLFSSL_LIBS $LIBS"
532    CFLAGS="$WOLFSSL_CFLAGS $CFLAGS"
533    AC_DEFINE([WITH_WOLFSSL], [1], [Use WolfSSL])
534  ], [
535    AC_SEARCH_LIBS(wolfSSL_Init, wolfssl,
536      [with_wolfssl=yes; AC_DEFINE([WITH_WOLFSSL], [1], [Use WolfSSL])],
537      [AC_MSG_WARN(*** WolfSSL was not found.)])
538  ])
539
540  AS_IF([test "$with_wolfssl" = "yes"], [
541    with_libwolfcrypt=yes
542    AC_DEFINE([WITH_LIBWOLFCRYPT], [1], [Use wolfcrypt])
543  ])
544])
545
546AS_IF([test "$with_gnutls" = "yes" || test "$with_wolfssl" = "yes" || test "$with_openssl" = "yes"], [
547  AC_DEFINE([WITH_TLS], [1], [Built with TLS support])
548  AS_IF([test "$with_gnutls" = "yes"], [ssl_enabled="gnutls"],
549        [test "$with_openssl" = "yes"], [ssl_enabled="openssl"],
550        [test "$with_wolfssl" = "yes"], [ssl_enabled="wolfssl"],
551        [ssl_enabled="(not found)"])
552], [
553  AS_IF([test "$with_ssl" != "none"], [
554    AS_IF([test "$with_ssl" == "yes"], [AC_MSG_ERROR([*** No SSL/TLS library not found.])],
555          [AC_MSG_ERROR([*** SSL/TLS library \"$with_ssl\" not found.])])
556  ])
557  ssl_enabled="none"
558])
559
560#AS_IF([test "$with_gnutls" != "yes" && test "$with_openssl" != "yes" && test "$with_wolfssl" != "yes"], [
561#  AS_IF([test "$with_ssl" != "none"], [
562#    AC_MSG_ERROR([*** Unsupported value for --with-ssl. Use 'gnutls' (default), 'openssl', 'wolfssl' or 'none'])
563#  ])
564#  ssl_enabled="(not found)"
565#])
566
567AM_CONDITIONAL([WITH_GNUTLS], [test "$with_gnutls" = "yes"])
568AM_CONDITIONAL([WITH_OPENSSL], [test "$with_openssl" = "yes"])
569AM_CONDITIONAL([WITH_WOLFSSL], [test "$with_wolfssl" = "yes"])
570
571AM_CONDITIONAL([WITH_TLS], [test "$with_gnutls" = "yes" || test "$with_wolfssl" = "yes" || test "$with_openssl" = "yes"])
572
573AS_IF([(test "$with_gnutls" != "yes" || test "$with_gnutls_hash" != "yes") && test "$with_libwolfcrypt" != "yes" && test "$with_libcrypto" != "yes"], [
574  PKG_CHECK_MODULES([NETTLE], nettle, [
575    with_libnettle=yes
576    LIBS="$NETTLE_LIBS $LIBS"
577    CFLAGS="$NETTLE_CFLAGS $CFLAGS"
578    AC_DEFINE([WITH_LIBNETTLE], [1], [Use libnettle])
579  ], [
580     with_libnettle=no
581     AC_MSG_WARN(*** LIBNETTLE was not found. Fallback to libgcrypt for hashing and checksumming.)
582  ])
583
584  AS_IF([test "$with_libnettle" != "yes"], [
585    AC_SEARCH_LIBS(gcry_check_version, gcrypt,
586      [with_gcrypt=yes; AC_DEFINE([WITH_GCRYPT], [1], [Use libgcrypt]) AC_CHECK_HEADERS([gcrypt.h])],
587      [with_gcrypt=no;  AC_MSG_WARN(*** LIBGCRYPT was not found. Fallback to gnulib for hashing and checksumming.)])
588  ])
589])
590
591AM_CONDITIONAL([WITH_LIBNETTLE], [test "$with_libnettle" = "yes"])
592AM_CONDITIONAL([WITH_CRYPT], [test "$with_gcrypt" = "yes"])
593
594AC_ARG_WITH(libpsl, AS_HELP_STRING([--without-libpsl], [disable support for libpsl cookie checking]), with_libpsl=$withval, with_libpsl=yes)
595AS_IF([test "$with_libpsl" != "no"], [
596  PKG_CHECK_MODULES([LIBPSL], libpsl, [
597    with_libpsl=yes
598    # correct $LIBPSL_LIBS (in libpsl <= 0.6.0)
599    AS_IF([test "$LIBPSL_LIBS" = "-llibpsl "], [LIBPSL_LIBS="-lpsl"])
600    LIBS="$LIBPSL_LIBS $LIBS"
601    CFLAGS="$LIBPSL_CFLAGS $CFLAGS"
602    AC_DEFINE([WITH_LIBPSL], [1], [PSL support enabled])
603  ], [
604    AC_SEARCH_LIBS(psl_builtin, psl,
605      [with_libpsl=yes; AC_DEFINE([WITH_LIBPSL], [1], [PSL support enabled])],
606      [with_libpsl=no;  AC_MSG_WARN(*** libpsl was not found. Fallback to builtin cookie checking.)])
607  ])
608])
609AM_CONDITIONAL([WITH_LIBPSL], [test "$with_libpsl" = "yes"])
610
611AC_ARG_WITH(libhsts, AS_HELP_STRING([--without-libhsts], [disable support for libhsts checking]), with_libhsts=$withval, with_libhsts=yes)
612AS_IF([test "$with_libhsts" != "no"], [
613  PKG_CHECK_MODULES([LIBHSTS], libhsts, [
614    with_libhsts=yes
615    LIBS="$LIBHSTS_LIBS $LIBS"
616    CFLAGS="$LIBHSTS_CFLAGS $CFLAGS"
617    AC_DEFINE([WITH_LIBHSTS], [1], [HSTS Preload List support enabled])
618  ], [
619    AC_SEARCH_LIBS(hsts_get_version, hsts,
620      [with_libhsts=yes; AC_DEFINE([WITH_LIBHSTS], [1], [HSTS Preload List support enabled])],
621      [with_libhsts=no;  AC_MSG_WARN(*** libhsts was not found.)])
622  ])
623])
624AM_CONDITIONAL([WITH_LIBHSTS], [test "$with_libHSTS" = "yes"])
625
626AC_ARG_WITH(libnghttp2, AS_HELP_STRING([--without-libnghttp2], [disable support for libnghttp2]), with_libnghttp2=$withval, with_libnghttp2=yes)
627AS_IF([test "$with_libnghttp2" != "no"], [
628  PKG_CHECK_MODULES([LIBNGHTTP2], libnghttp2, [
629    with_libnghttp2=yes
630    LIBS="$LIBNGHTTP2_LIBS $LIBS"
631    CFLAGS="$LIBNGHTTP2_CFLAGS $CFLAGS"
632    AC_DEFINE([WITH_LIBNGHTTP2], [1], [HTTP/2.0 support enabled via libnghttp2])
633  ], [
634    AC_SEARCH_LIBS(nghttp2_session_client_new, nghttp2,
635      [with_libnghttp2=yes; AC_DEFINE([WITH_LIBNGHTTP2], [1], [HTTP/2.0 support enabled via libnghttp2])],
636      [with_libnghttp2=no;  AC_MSG_WARN(*** libnghttp2 was not found. HTTP/2.0 support disabled.)])
637  ])
638])
639AM_CONDITIONAL([WITH_LIBNGHTTP2], [test "$with_libnghttp2" = "yes"])
640
641AC_ARG_WITH(bzip2, AS_HELP_STRING([--without-bzip2], [disable bzip2 compression support]), with_bzip2=$withval, with_bzip2=yes)
642AS_IF([test "$with_bzip2" != "no"], [
643  AC_SEARCH_LIBS(BZ2_bzDecompress, bz2,
644    [with_bzip2=yes; AC_SUBST([BZ2_LIBS], -lbz2) AC_DEFINE([WITH_BZIP2], [1], [Use libbz2])],
645    [with_bzip2=no;  AC_MSG_WARN(*** libbz2 was not found. You will not be able to use BZIP2 (de)compression)])
646])
647AM_CONDITIONAL([WITH_BZIP2], [test "$with_bzip2" = "yes"])
648
649AC_ARG_WITH(gpgme, AS_HELP_STRING([--without-gpgme], [support signature verification with gpgme]), with_gpgme=$withval, with_gpgme=yes)
650AS_IF([test "$with_gpgme" != "no"], [
651  PKG_CHECK_MODULES([GPGME], gpgme, [
652    with_gpgme=yes
653    LIBS="$GPGME_LIBS $LIBS"
654    CFLAGS="$GPGME_CFLAGS $CFLAGS"
655    AC_DEFINE([WITH_GPGME], [1], [Use gpgme])
656  ], [
657    m4_ifdef([AM_PATH_GPGME],[
658      AM_PATH_GPGME([], [
659        with_gpgme=yes
660        LIBS="$GPGME_LIBS $LIBS"
661        CFLAGS="$GPGME_CFLAGS $CFLAGS"
662        AC_DEFINE([WITH_GPGME], [1], [Use gpgme])
663      ],[
664        with_gpgme=no; AC_MSG_WARN(*** GPGME not found.)
665      ])
666    ], [
667      with_gpgme=no; AC_MSG_WARN(*** GPGME not found. Signature verification is not possible)
668    ])
669  ])
670])
671AM_CONDITIONAL([WITH_GPGME], [test "$with_gpgme" = "yes"])
672
673AC_ARG_WITH(zlib, AS_HELP_STRING([--without-zlib], [disable gzip compression support]), with_zlib=$withval, with_zlib=yes)
674AS_IF([test "$with_zlib" != "no"], [
675  PKG_CHECK_MODULES([ZLIB], zlib, [
676    with_zlib=yes
677    LIBS="$ZLIB_LIBS $LIBS"
678    CFLAGS="$ZLIB_CFLAGS $CFLAGS"
679    AC_DEFINE([WITH_ZLIB], [1], [Use zlib])
680  ], [
681    AC_SEARCH_LIBS(deflate, z,
682      [with_zlib=yes; AC_DEFINE([WITH_ZLIB], [1], [Use zlib])],
683      [with_zlib=no;  AC_MSG_WARN(*** ZLIB was not found. You will not be able to use gzip (de)compression)])
684  ])
685])
686AM_CONDITIONAL([WITH_ZLIB], [test "$with_zlib" = "yes"])
687
688AC_ARG_WITH(lzma, AS_HELP_STRING([--without-lzma], [disable LZMA compression support]), with_lzma=$withval, with_lzma=yes)
689AS_IF([test "$with_lzma" != "no"], [
690  PKG_CHECK_MODULES([LZMA], liblzma, [
691    with_lzma=yes
692    LIBS="$LZMA_LIBS $LIBS"
693    CFLAGS="$LZMA_CFLAGS $CFLAGS"
694    AC_DEFINE([WITH_LZMA], [1], [Use liblzma])
695  ], [
696    AC_SEARCH_LIBS(lzma_code, lzma,
697      [with_lzma=yes; AC_DEFINE([WITH_LZMA], [1], [Use liblzma])],
698      [with_lzma=no;  AC_MSG_WARN(*** liblzma was not found. You will not be able to use LZMA (de)compression)])
699  ])
700])
701AM_CONDITIONAL([WITH_LZMA], [test "$with_lzma" = "yes"])
702
703AC_ARG_WITH(brotlidec, AS_HELP_STRING([--without-brotlidec], [disable Brotli compression support]), with_brotlidec=$withval, with_brotlidec=yes)
704AS_IF([test "$with_brotlidec" != "no"], [
705  PKG_CHECK_MODULES([BROTLIDEC], libbrotlidec, [
706    with_brotlidec=yes
707    LIBS="$BROTLIDEC_LIBS $LIBS"
708    CFLAGS="$BROTLIDEC_CFLAGS $CFLAGS"
709    AC_DEFINE([WITH_BROTLIDEC], [1], [Use brotlidec])
710  ], [
711    AC_SEARCH_LIBS(BrotliDecoderCreateInstance, brotlidec,
712      [with_brotlidec=yes; AC_DEFINE([WITH_BROTLIDEC], [1], [Use libbrotlidec])],
713      [with_brotlidec=no;  AC_MSG_WARN(*** libbrotlidec was not found. You will not be able to use Brotli decompression)])
714  ])
715])
716AM_CONDITIONAL([WITH_BROTLIDEC], [test "$with_brotlidec" = "yes"])
717
718AC_ARG_WITH(zstd, AS_HELP_STRING([--without-zstd], [disable Zstandard compression support]), with_zstd=$withval, with_zstd=yes)
719AS_IF([test "$with_zstd" != "no"], [
720  PKG_CHECK_MODULES([ZSTD], libzstd, [
721    with_zstd=yes
722    LIBS="$ZSTD_LIBS $LIBS"
723    CFLAGS="$ZSTD_CFLAGS $CFLAGS"
724    AC_DEFINE([WITH_ZSTD], [1], [Use zstd])
725  ], [
726    AC_SEARCH_LIBS(ZSTD_decompressStream, zstd,
727      [with_zstd=yes; AC_DEFINE([WITH_ZSTD], [1], [Use libzstd])],
728      [with_zstd=no;  AC_MSG_WARN(*** libzstd was not found. You will not be able to use Zstandard decompression)])
729  ])
730])
731AM_CONDITIONAL([WITH_ZSTD], [test "$with_zstd" = "yes"])
732
733AC_ARG_WITH(lz, AS_HELP_STRING([--without-lzip], [disable lzip compression support]), with_lzip=$withval, with_lzip=yes)
734AS_IF([test "$with_lzip" != "no"], [
735  PKG_CHECK_MODULES([LZIP], liblz, [
736    with_lz=yes
737    LIBS="$LZIP_LIBS $LIBS"
738    CFLAGS="$LZIP_CFLAGS $CFLAGS"
739    AC_DEFINE([WITH_LZIP], [1], [Use liblz (lzip)])
740  ], [
741    old_LIBS="$LIBS"
742    LIBS=
743    AC_SEARCH_LIBS(LZ_decompress_open, lz,
744      [with_lzip=yes; LZIP_LIBS="$LIBS"; AC_DEFINE([WITH_LZIP], [1], [Use liblz (lzip)])],
745      [with_lzip=no;  AC_MSG_WARN(*** liblz was not found. You will not be able to use lzip decompression)])
746    LIBS="$old_LIBS $LZIP_LIBS"
747  ])
748])
749AM_CONDITIONAL([WITH_LZIP], [test "$with_lzip" = "yes"])
750
751# Support for internationalized domain names.
752# IDN support in Wget2 is provided in multiple ways:
753#   1. libidn2 >= 0.14.0 (IDNA 2008)
754#   3. libidn (IDNA 2003)
755#
756# If libidn2 is not found at all, we try to fallback to libidn.
757AC_ARG_WITH(libidn2, AS_HELP_STRING([--without-libidn2], [disable IDN2 support]), with_libidn2=$withval, with_libidn2=yes)
758AS_IF([test "$with_libidn2" != "no"], [
759  PKG_CHECK_MODULES([LIBIDN2], [libidn2 >= 0.14.0], [
760    with_libidn2=yes
761    IDNA_INFO="IDNA 2008 (libidn2)"
762    LIBS="$LIBIDN2_LIBS $LIBS"
763    CFLAGS="$LIBIDN2_CFLAGS $CFLAGS"
764    AC_DEFINE([WITH_LIBIDN2], [1], [Use libidn2])
765  ], [
766    with_libidn2=no
767    AC_MSG_WARN(*** LIBIDN2 was not found. You will not be able to use IDN2008 support)
768    ])
769])
770
771AM_CONDITIONAL([WITH_LIBIDN2], [test "$with_libidn2" = "yes"])
772
773AS_IF([test "$with_libidn2" != "yes"], [
774  AC_ARG_WITH(libidn, AS_HELP_STRING([--without-libidn], [disable IDN support]), with_libidn=$withval, with_libidn=yes)
775  AS_IF([test "$with_libidn" != "no"], [
776    PKG_CHECK_MODULES([LIBIDN], libidn, [
777      with_libidn=yes
778      LIBS="$LIBIDN_LIBS $LIBS"
779      CFLAGS="$LIBIDN_CFLAGS $CFLAGS"
780      AC_DEFINE([WITH_LIBIDN], [1], [Use libidn])
781      IDNA_INFO="IDNA 2003 (libidn)"
782    ], [
783      AC_SEARCH_LIBS(idna_to_ascii_8z, idn,
784        [with_libidn=yes; AC_DEFINE([WITH_LIBIDN], [1], [Use libidn]) IDNA_INFO="IDNA 2003 (libidn)"],
785        [with_libidn=no; AC_MSG_WARN(*** LIBIDN was not found. You will not be able to use IDN support)])
786    ])
787  ])
788])
789AM_CONDITIONAL([WITH_LIBIDN], [test "$with_libidn" = "yes"])
790
791AC_ARG_WITH(libpcre2, AS_HELP_STRING([--without-libpcre2], [disable support for libpcre2]), with_libpcre2=$withval, with_libpcre2=yes)
792AS_IF([test "$with_libpcre2" != "no"], [
793  PKG_CHECK_MODULES([LIBPCRE2], libpcre2-8, [
794    with_libpcre2=yes
795    LIBS="$LIBPCRE2_LIBS $LIBS"
796    CFLAGS="$LIBPCRE2_CFLAGS $CFLAGS"
797    AC_DEFINE([WITH_LIBPCRE2], [1], [PCRE regex support enabled via libpcre2])
798  ], [
799    AC_SEARCH_LIBS(pcre2_compile_8, pcre2-8,
800      [with_libpcre2=yes; AC_DEFINE([WITH_LIBPCRE2], [1], [PCRE regex support enabled via libpcre2])],
801      [with_libpcre2=no; AC_MSG_WARN(*** libpcre2 was not found. PCRE2 regex support disabled.)])
802  ])
803])
804AM_CONDITIONAL([WITH_LIBPCRE2], [test "$with_libpcre2" = "yes"])
805
806AS_IF([test "$with_libpcre2" != "yes"], [
807 AC_ARG_WITH(libpcre, AS_HELP_STRING([--without-libpcre], [disable support for libpcre]), with_libpcre=$withval, with_libpcre=yes)
808 AS_IF([test "$with_libpcre" != "no"], [
809   PKG_CHECK_MODULES([LIBPCRE], libpcre, [
810     with_libpcre=yes
811     LIBS="$LIBPCRE_LIBS $LIBS"
812     CFLAGS="$LIBPCRE_CFLAGS $CFLAGS"
813     AC_DEFINE([WITH_LIBPCRE], [1], [PCRE regex support enabled via libpcre])
814   ], [
815     AC_SEARCH_LIBS(pcre_compile, pcre,
816       [with_libpcre=yes; AC_DEFINE([WITH_LIBPCRE], [1], [PCRE regex support enabled via libpcre])],
817       [with_libpcre=no; AC_MSG_WARN(*** libpcre was not found. PCRE regex support disabled.)])
818   ])
819 ])
820])
821AM_CONDITIONAL([WITH_LIBPCRE], [test "$with_libpcre" = "yes"])
822
823AS_IF([test "$with_libpcre" = "yes"], [HAVE_PCRE="yes, via libpcre"], [test "$with_libpcre2" = "yes"], [HAVE_PCRE="yes, via libpcre2"], [HAVE_PCRE=no])
824
825AC_ARG_WITH(libmicrohttpd, AS_HELP_STRING([--without-libmicrohttpd], [disable support for libmicrohttpd]), with_libmicrohttpd=$withval, with_libmicrohttpd=yes)
826AS_IF([test "$with_libmicrohttpd" != "no"], [
827  old_LIBS=$LIBS
828  old_CFLAGS=$CFLAGS
829  PKG_CHECK_MODULES(MICROHTTPD, [libmicrohttpd], [
830    with_libmicrohttpd=yes
831    TEST_LIBS="$MICROHTTPD_LIBS $TEST_LIBS"
832    TEST_CFLAGS="$MICROHTTPD_CFLAGS $TEST_CFLAGS"
833    AC_DEFINE([WITH_MICROHTTPD], [1], [Use Libmicrohttpd])
834    LIBS="$MICROHTTPD_LIBS $LIBS"
835    CFLAGS="$MICROHTTPD_CFLAGS $CFLAGS"
836    AC_CHECK_FUNCS(MHD_free)
837    AC_CHECK_HEADERS([microhttpd_http2.h])
838    LIBS=$old_LIBS
839    CFLAGS=$old_CFLAGS
840  ], [
841    AC_SEARCH_LIBS(MHD_start_daemon, microhttpd,
842      [with_libmicrohttpd=yes; AC_DEFINE([WITH_MICROHTTPD], [1], [Use libmicrohttpd])],
843      [with_libmicrohttpd=no; AC_MSG_WARN(*** LIBMICROHTTPD was not found. Several tests will not run.)])
844    AC_CHECK_FUNCS(MHD_free)
845    AC_CHECK_HEADERS([microhttpd_http2.h])
846    TEST_LIBS=$LIBS
847    TEST_CFLAGS=$CFLAGS
848  ])
849  LIBS=$old_LIBS
850  CFLAGS=$old_CFLAGS
851
852  AS_IF([test "$with_libmicrohttpd" = "yes" && test "$with_gnutls" != "yes"], [
853    dnl MHD needs GnuTLS
854    PKG_CHECK_MODULES([GNUTLS], [gnutls], [
855      TEST_LIBS="$TEST_LIBS $GNUTLS_LIBS"
856      TEST_CFLAGS="$TEST_CFLAGS $GNUTLS_CFLAGS"
857      AC_DEFINE([WITH_GNUTLS_IN_TESTSUITE], [1], [GnuTLS is available for test suite.])
858      AC_CHECK_HEADERS([gnutls/ocsp.h],
859        [AC_DEFINE([WITH_GNUTLS_OCSP], [1], [GnuTLS OCSP is supported for test suite.])],
860        [AC_MSG_WARN(*** Header file gnutls/ocsp.h was not found. OCSP will be disabled for tests.)])
861    ], [
862      old_LIBS=$LIBS
863      old_CFLAGS=$CFLAGS
864      AC_SEARCH_LIBS(gnutls_global_init, gnutls,
865        [AC_DEFINE([WITH_GNUTLS_IN_TESTSUITE], [1], [GnuTLS is available for test suite.])],
866        [AC_MSG_WARN(*** GnuTLS is not available. Some tests will not run.)])
867      TEST_LIBS=$LIBS
868      TEST_CFLAGS=$CFLAGS
869      LIBS=$old_LIBS
870      CFLAGS=$old_CFLAGS
871    ])
872  ])
873])
874
875AM_CONDITIONAL([WITH_MICROHTTPD], [test "$with_libmicrohttpd" = "yes"])
876
877# Check for plugin support
878AC_CANONICAL_HOST
879case "$host_os" in
880	mingw*)
881		dl_impl="windows";
882		;;
883	win32*)
884		dl_impl="windows";
885		;;
886	*)
887		dl_impl="libdl";
888		;;
889esac
890AC_ARG_WITH(plugin_support,
891	AS_HELP_STRING([--without-plugin-support],
892		[Disable plugin support]),
893		[plugin_support="$withval"],
894		[plugin_support="yes"])
895FUZZ_LIBS=$LIBS
896if test "$plugin_support" = "no"; then
897	OLD_LIBS=$LIBS
898	AC_SEARCH_LIBS([dlsym], [dl dld])
899	FUZZ_LIBS=$LIBS
900	LIBS=$OLD_LIBS
901elif test "$dl_impl" = "libdl"; then
902	AC_SEARCH_LIBS([dlsym], [dl ldl], [:], [dl_impl="none"])
903	FUZZ_LIBS=$LIBS
904fi
905AC_SUBST([FUZZ_LIBS])
906if test "$plugin_support" = "yes" && test "$dl_impl" = "none"; then
907	AC_MSG_WARN(*** No working backend for plugin support found)
908	plugin_support="no"
909fi
910if test "$plugin_support" = "yes"; then
911	AC_DEFINE([PLUGIN_SUPPORT], [1], [Enable plugin support])
912	if test "$dl_impl" = "windows"; then
913		AC_DEFINE([PLUGIN_SUPPORT_WINDOWS], [1], [Use windows API for plugins])
914	else
915		AC_DEFINE([PLUGIN_SUPPORT_LIBDL], [1], [Use libdl for plugins])
916	fi
917fi
918AM_CONDITIONAL([PLUGIN_SUPPORT], [test "$plugin_support" = "yes"])
919
920AC_SUBST([TEST_CFLAGS])
921AC_SUBST([TEST_LIBS])
922AC_SUBST([ALL_LIBS], $LIBS)
923
924# Checks for header files.
925AC_CHECK_HEADERS([\
926 crypt.h idna.h idn/idna.h idn2.h unicase.h netinet/tcp.h])
927
928# Checks for library functions.
929AC_FUNC_FORK
930AC_FUNC_MMAP
931AC_CHECK_FUNCS([\
932 strlcpy getuid fmemopen])
933
934AC_CONFIG_FILES([Makefile
935                 lib/Makefile
936                 include/Makefile
937                 include/wget/Makefile
938                 libwget/Makefile
939                 src/Makefile
940                 examples/Makefile
941                 unit-tests/Makefile
942                 tests/Makefile
943                 fuzz/Makefile
944                 libwget.pc
945                 docs/Makefile
946                 docs/libwget.doxy
947                 docs/wget2_md2man.sh])
948AC_OUTPUT
949
950# patching libtool, generated when coming here
951patch libtool contrib/libtool.patch
952
953AC_MSG_NOTICE([Summary of build options:
954
955  Version:            ${PACKAGE_VERSION}
956  Host OS:            ${host_os}
957  Install prefix:     ${prefix}
958  Compiler:           ${CC}
959  CFlags:             ${CFLAGS} ${CPPFLAGS} ${WARN_CFLAGS}
960  LDFlags:            ${LDFLAGS}
961  Libs:               ${LIBS}
962  Library types:      shared=${enable_shared}, static=${enable_static}
963  Small libraries:    $enable_manylibs
964  SSL/TLS support:    $ssl_enabled
965  GZIP compression:   $with_zlib
966  BZIP2 compression:  $with_bzip2
967  LZMA compression:   $with_lzma
968  Brotli compression: $with_brotlidec
969  Zstd compression:   $with_zstd
970  Lzip compression:   $with_lzip
971  IDNA support:       $IDNA_INFO
972  PSL support:        $with_libpsl
973  HSTS support:       $with_libhsts
974  HTTP/2.0 support:   $with_libnghttp2
975  Documentation:      $DOCS_INFO
976  Wget2 docs:         $WGET2_DOCS_INFO
977  Libwget docs:       $LIBWGET_DOCS_INFO
978  PCRE support:       ${HAVE_PCRE}
979  Tests:              ${TESTS_INFO}
980  Assertions:         $ENABLE_ASSERT
981  POSIX xattr:        $ENABLE_XATTR
982  Microhttpd support: $with_libmicrohttpd (CFLAGS: ${TEST_CFLAGS}. LIBS: ${TEST_LIBS})
983  Fuzzing build:      $enable_fuzzing, $LIB_FUZZING_ENGINE
984  GPGME:              $with_gpgme
985])
986