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This replaces the sketchy cmake invocation we had inside configure
The libs are always built and always used in unit tests, but only
included in libtor and tor when --enable-gpl is set.
Signed-off-by: Micah Elizabeth Scott <beth@torproject.org>
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This forgoes another external library dependency, and instead
introduces a compatibility header so that interested parties
(who already depend on equix, like hs_pow and unit tests) can
use the implementation of blake2b included in hashx.
Signed-off-by: Micah Elizabeth Scott <beth@torproject.org>
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This adds a new "pow" module for the user-visible proof
of work support in ./configure, and this disables
src/feature/hs/hs_pow at compile-time.
Signed-off-by: Micah Elizabeth Scott <beth@torproject.org>
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This change on its own doesn't use the option for anything, but
it includes support for configure and a message in 'tor --version'
Signed-off-by: Micah Elizabeth Scott <beth@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Clang 16 warns on -Wstrict-prototypes in preparation for C23 which can
among other things, lead to some configure tests silently failing/returning the wrong result.
Fixes this error:
```
-ignoreme: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
+ignoreme: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
main ()
```
For more information, see LWN.net [0] or LLVM's Discourse [1], gentoo-dev@ [2],
or the (new) c-std-porting mailing list [3].
[0] https://lwn.net/Articles/913505/
[1] https://discourse.llvm.org/t/configure-script-breakage-with-the-new-werror-implicit-function-declaration/65213
[2] https://archives.gentoo.org/gentoo-dev/message/dd9f2d3082b8b6f8dfbccb0639e6e240
[3] hosted at lists.linux.dev.
Bug: https://bugs.gentoo.org/879747
Signed-off-by: Sam James <sam@gentoo.org>
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update AX_CHECK_COMPILE_FLAG function call
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LibreSSL is now closer to OpenSSL 1.1 than OpenSSL 1.0. According to
https://undeadly.org/cgi?action=article;sid=20220116121253, this is the
intention of OpenBSD developers.
According to #40630, many special cases are needed to compile Tor against
LibreSSL 3.5 when using Tor's OpenSSL 1.0 compatibility mode, whereas only a
small number of #defines are required when using OpenSSL 1.1 compatibility
mode. One additional workaround is required for LibreSSL 3.4 compatibility.
Compiles and passes unit tests with LibreSSL 3.4.3 and 3.5.1.
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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From LibreSSL versions 3.2.1 through 3.4.0, our configure script
would conclude that TLSv1.3 as supported, but it actually wasn't.
This led to annoying breakage like #40128 and #40445.
Now we give an error message if we try to build with one of those
versions.
Closes #40511.
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Previously the logic was reversed, and always gave the wrong answer.
This has no other effect than to change whether we suppress
deprecated API warnings.
Fixes #40429; bugfix on 0.3.5.13.
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Mingw headers sometimes like to define alternative scanf/printf
format attributes depending on whether they're using clang, UCRT,
MINGW_ANSI_STDIO, or the microsoft version of printf/scanf. This
change attempts to use the right one on the given platform.
This is an attempt to fix part of #40355.
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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