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/cvs/gvpe/configure.ac
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Comparing gvpe/configure.ac (file contents):
Revision 1.65 by root, Wed Nov 2 07:06:38 2016 UTC vs.
Revision 1.68 by root, Thu Oct 6 03:25:53 2022 UTC

1dnl Process this file with autoconf to produce a configure script. 1dnl Process this file with autoconf to produce a configure script.
2 2
3AC_PREREQ(2.69) 3AC_PREREQ([2.71])
4AC_INIT 4AC_INIT([gvpe],[3.1])
5AC_CONFIG_SRCDIR([src/gvpe.C]) 5AC_CONFIG_SRCDIR([src/gvpe.C])
6AC_CANONICAL_TARGET 6AC_CANONICAL_TARGET
7AM_INIT_AUTOMAKE(gvpe, 3.0) 7AM_INIT_AUTOMAKE
8AC_CONFIG_HEADERS([config.h]) 8AC_CONFIG_HEADERS([config.h])
9AM_MAINTAINER_MODE 9AM_MAINTAINER_MODE
10 10
11AH_TOP([ 11AH_TOP([
12#ifndef CONFIG_H__ 12#ifndef CONFIG_H__
… …
179 179
180dnl Checks for typedefs, structures, and compiler characteristics. 180dnl Checks for typedefs, structures, and compiler characteristics.
181AC_C_CONST 181AC_C_CONST
182AC_TYPE_PID_T 182AC_TYPE_PID_T
183AC_TYPE_SIZE_T 183AC_TYPE_SIZE_T
184AC_HEADER_TIME 184AC_CHECK_HEADERS_ONCE([sys/time.h])
185
185AC_STRUCT_TM 186AC_STRUCT_TM
186 187
187AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t, 188AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t,
188[ 189[
189 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> 190 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
… …
201]) 202])
202if test $ac_cv_struct_addrinfo = yes; then 203if test $ac_cv_struct_addrinfo = yes; then
203 AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1, [struct addrinfo available]) 204 AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1, [struct addrinfo available])
204fi 205fi
205 206
206dnl Checks for library functions.
207AC_TYPE_SIGNAL
208
209AC_LANG_PUSH(C) 207AC_LANG_PUSH(C)
210
211AC_HEADER_STDC
212 208
213dnl argl, could somebody catapult darwin into the 21st century??? 209dnl argl, could somebody catapult darwin into the 21st century???
214AC_CHECK_FUNCS(asprintf daemon get_current_dir_name putenv select strerror strsignal strtol unsetenv mlockall) 210AC_CHECK_FUNCS(asprintf daemon get_current_dir_name putenv select strerror strsignal strtol unsetenv mlockall)
215 211
216AC_FUNC_ALLOCA 212AC_FUNC_ALLOCA
… …
234AC_CACHE_SAVE 230AC_CACHE_SAVE
235 231
236dnl These are defined in files in m4/ 232dnl These are defined in files in m4/
237tinc_TUNTAP 233tinc_TUNTAP
238 234
239tinc_OPENSSL 235PKG_CHECK_MODULES([LIBCRYPTO], [libcrypto >= 1])
240if test "x$openssl_include" != x; then
241 CXXFLAGS="$CXXFLAGS -I$openssl_include"
242fi
243dnl tinc_ZLIB
244 236
245AC_ARG_ENABLE(threads, 237AC_ARG_ENABLE(threads,
246 [AS_HELP_STRING(--enable-threads,try to use threads for long-running asynchronous operations (default enabled).)], 238 [AS_HELP_STRING(--enable-threads,try to use threads for long-running asynchronous operations (default enabled).)],
247 [try_threads=$enableval], 239 [try_threads=$enableval],
248 [try_threads=yes] 240 [try_threads=yes]
… …
415dnl 407dnl
416dnl if $LD -v --help 2>&1 | grep -q gc-sections; then 408dnl if $LD -v --help 2>&1 | grep -q gc-sections; then
417dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections" 409dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections"
418dnl fi 410dnl fi
419 411
420AC_SUBST(INCLUDES) 412AC_SUBST(AM_CPPFLAGS)
421 413
422AC_CONFIG_FILES([Makefile po/Makefile.in 414AC_CONFIG_FILES([Makefile po/Makefile.in
423src/Makefile 415src/Makefile
424doc/Makefile 416doc/Makefile
425lib/Makefile 417lib/Makefile
… …
449fi 441fi
450 442
451echo "***" 443echo "***"
452echo 444echo
453 445
446if pkg-config --exists 'libcrypto >= 1.1 libcrypto < 2.0'; then
447 cat <<EOF
448@<:@33m
449***
450*** WARNING WARNING WARNING WARNING WARNING WARNING WARNING
451***
452*** You seem to configure gvpe with OpenSSL 1.1 or newer.
453*** While this probably compiles, please note that this is not only
454*** unsupported, but also discouraged.
455***
456*** It is recommended to use either OpenSSL 1.0, as long as that is still
457*** supported, or LibreSSL (https://www.libressl.org/).
458***
459*** This is not a political issue - while porting GVPE to the newer
460*** OpenSSL 1.1 API, I encountered two incompatible API changes that were
461*** not documented, were not caught while compiling but caused security
462*** issues. When reported, the reaction of the OpenSSL developers was to
463*** update the documentation.
464***
465*** As a result, I lost all confidence in the ability and desire of
466*** OpenSSL developers to create a safe API, and would highly recommend
467*** switching to LibreSSL which explicitly avoids such braking changes.
468***
469*** WARNING WARNING WARNING WARNING WARNING WARNING WARNING
470***
471*** Again, do not use OpenSSL 1.1 and complain if stuff breaks.
472*** You have been warned, but your choice is respected.
473***
474@<:@0m
454 475
476EOF
477fi
478
479

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