manpage: ensure a maximum width for the text version

... using the new script 'maxline' to which we specify the maximum
number of columns we allow any single line to be, or it will cause

manpage: ensure a maximum width for the text version

... using the new script 'maxline' to which we specify the maximum
number of columns we allow any single line to be, or it will cause an
error.

Starting out with a max width at 100 columns.

Bonus: shorten the long line in the --ipfs-gateway section.

Closes #14423

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cmake: more small tidy-ups and fixes

- tidy up two `MATCHES` expression by avoiding macros expansion and
adding quotes. Then convert then to `STREQUAL` to match other places
in t

cmake: more small tidy-ups and fixes

- tidy up two `MATCHES` expression by avoiding macros expansion and
adding quotes. Then convert then to `STREQUAL` to match other places
in the code doing the same checks.

- fix setting `_ALL_SOURCE` for AIX to match what autotools does.

- delete stray `_ALL_SOURCE` reference from `lib/config_riscos.h`

- simplify/fix two `STREQUAL ""` checks.
The one in the `openssl_check_symbol_exists()` macro succeeded
regardless of the value. The other could return TRUE when
`CMAKE_OSX_SYSROOT` was undefined.

- delete code for CMake versions (<3.7) we no longer support.

- prefer `LIST(APPEND ...)` to extend `CURL_LIBS`.

- use `CURL_LIBS` to add the `network` lib for Haiku.
Before this patch it was done via raw C flags. I could not test this.

- move `_WIN32_WINNT`-related code next to each other.
It also moves detection to the top, allowing more code to use
the result.

- merge two `WIN32` blocks.

- rename internal variables to underscore + lowercase.

- unwrap a line, indent, whitespace.

Closes #14450

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krb5: add Linux/macOS CI tests, fix cmake GSS detection

- GHA/macos: enable GSS krb5 in a cmake job.
Uses CMake-native detection.

- GHA/linux: enable GSS krb5 in autotools job

krb5: add Linux/macOS CI tests, fix cmake GSS detection

- GHA/macos: enable GSS krb5 in a cmake job.
Uses CMake-native detection.

- GHA/linux: enable GSS krb5 in autotools job and add a cmake job to
match.
CMake uses `pkg-config`-based detection.

- GHA/linux: add step to dump configure logs.

- fix and simplify logic digesting FindGSS output.

- cmake: add `heimdal-gssapi` to `libcurl.pc`.

Closes #14447

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cmake: detect and show VCPKG in platform flags

Use `VCPKG_TOOLCHAIN` to detect a vcpkg build environment.

Closes #14451

GHA/non-native: ignore FTP results in OpenBSD job

They are flaky.

cmake: tidy up more value comparisons

- unquote numeric value.

- `NOT LESS` -> `GREATER_EQUAL`.

- replace macro with variable name.
It also avoids this error when the

cmake: tidy up more value comparisons

- unquote numeric value.

- `NOT LESS` -> `GREATER_EQUAL`.

- replace macro with variable name.
It also avoids this error when the variable is undefined:
```
CMake Error at CMakeLists.txt:1529 (if):
if given arguments:
"GREATER" "4"
Unknown arguments specified
```
https://github.com/curl/curl/actions/runs/10289921657/job/28478722584#step:30:356

Follow-up to 72ae0d86a42fea83612d8baf59cff2f945aca22a #14409
Follow-up to acbc6b703f6b0ee568d053f6f2565fbc107b5fd3 #14197

Closes #14449

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cmake: fix version variable references in FindGSS

Assign the value of the variable instead of the name of the variable
when detecting GSS version via `pkg-config` on old (?) CMake.

cmake: fix version variable references in FindGSS

Assign the value of the variable instead of the name of the variable
when detecting GSS version via `pkg-config` on old (?) CMake.

(On recent CMake, there is an empty value in these variables.)

Closes #14445

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cmake: more syntax tidy-up

- quote string literals.
In the hope it improves syntax-highlighting and readability.

- use lowercase, underscore-prefixed local var names.
As

cmake: more syntax tidy-up

- quote string literals.
In the hope it improves syntax-highlighting and readability.

- use lowercase, underscore-prefixed local var names.
As a hint for scope, to help readability.

- prefer `pkg_search_module` (over `pkg_check_modules`).
They are the same, but `pkg_search_module` stops searching
at the first hit.

- more `IN LISTS` in `foreach()`.

- OtherTests.cmake: clear `CMAKE_EXTRA_INCLUDE_FILES` after use.

- add `PROJECT_LABEL` for http/client and unit test targets.

- sync `Find*` module comments and formatting.

- drop a few local variables.

- drop bogus `CARES_LIBRARIES` from comment.

- unquote numeric literal.

Follow-up to acbc6b703f6b0ee568d053f6f2565fbc107b5fd3 #14197
Closes #14388

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wolfssl: avoid taking cached x509 store ref if sslctx already using it

Closes #14442

tracing: allow CURL_DEBUG override

On debug builds, allow environment variable CURL_DEBUG to override any
setting done via '-v' or '--no-verbose'.

Closes #14436

http/2: simplify eos/blocked handling

- rely on the new flush to handle blocked sends. No longer
do simulated EAGAIN on (partially) blocked sends with their
need to handle repeat

http/2: simplify eos/blocked handling

- rely on the new flush to handle blocked sends. No longer
do simulated EAGAIN on (partially) blocked sends with their
need to handle repeats.
- fix some debug handling CURL_SMALLREQSEND env var
- add some assertings in request.c for affirming we do it right
- enhance assertion output in test_16 for easier analysis

Closes #14435

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curl: fix --proxy-pinnedpubkey

This option was added in #2268 but never connected in
tool_operate.c.

Closes #14438

verbose.md: polish, mostly remove back-ticks

To make the page render nicer as manpage and text-only.

Closes #14441

max-filesize.md: mention zero disables the limit

Reported-by: MasterInQuestion on github
Fixes #14440
Closes #14443

cmake: fix `pkg-config`-based detection in `FindGSS.cmake`

Before this patch `pkg-config`-based detection was ignored, and used
solely as a path hint for native detection.

- fix

cmake: fix `pkg-config`-based detection in `FindGSS.cmake`

Before this patch `pkg-config`-based detection was ignored, and used
solely as a path hint for native detection.

- fix `pkg_search_module()` result prefix to match what code expects:
`_GSS` (was: `_GSS_PKG`). Update variable that were in sync with old
prefix.

- update the pkg-config codepath to use `_GSS_MODULE_NAME` to detect
GSS flavour. This requires CMake 3.16.
Otherwise fall back to the old method. (The old method doesn't seem to
work anymore (?) as of CMake 3.30.1. Documented
`<prefix>_<modulename>_VERSION` variable is defined, but empty.)

- update the pkg-config codepath to use `_GSS_VERSION` set by CMake.
Resort to the old code when this variable is empty. (The old code
doesn't seem to work anymore (?) as of CMake 3.30.1)

- fix pkg-config codepath to set the documented result variables.

- align native detection variable names with those generated by
`pkg_search_module()` in the pkg-config codepath.

- GHA/macos: enable GSS Heimdal in a cmake job.
Uses the native detection.

- GHA/linux: enable GSS Heimdal in cmake and autotools jobs.
CMake uses `pkg-config`-based detection.

- suppress test 2077 and 2078 results on Linux + Heimdal.
```
FAIL-IGNORED 2077: 'curl --fail --negotiate to unauthenticated service fails' HTTP, HTTP GET, GSS-API
FAIL-IGNORED 2078: 'curl --negotiate should not send empty POST request only' HTTP, HTTP GET, GSS-API
```
Failing with valgrind errors in both autotools and cmake builds:
https://github.com/curl/curl/actions/runs/10282222581/job/28453472068?pr=14430#step:38:3638
https://github.com/curl/curl/actions/runs/10282222581/job/28453473398?pr=14430#step:38:7831

Closes #14430

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krb5: fix `-Wcast-align`

```
lib/krb5.c:343:39: warning: cast from 'void **' to 'unsigned char **' increases required alignment from 2 to 8 [-Wcast-align]

krb5: fix `-Wcast-align`

```
lib/krb5.c:343:39: warning: cast from 'void **' to 'unsigned char **' increases required alignment from 2 to 8 [-Wcast-align]
(unsigned char **)&_gssresp.value,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
Seen on macOS Intel with Apple clang and brew heimdal 7.8.0_1.

Closes #14433

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cmake: add debug function to dump all variables

Place a `curl_dumpvars()` call anywhere in the CMake code to use it.

Closes #14439

GHA/macos: tweak toolchain dump steps

- use documented flavour of `xcrun` option.

- show SDK version with a dedicated command.
(Sometimes the SDK path is a symlink and doesn't

GHA/macos: tweak toolchain dump steps

- use documented flavour of `xcrun` option.

- show SDK version with a dedicated command.
(Sometimes the SDK path is a symlink and doesn't tell the version.
This is not at the moment the case in CI, but handle it anyway.)

- align group header with reality.
Preinstalled vs. installed Homebrew packages can be recognized
by their directory timestamps. Installed ones have a current date.

Closes #14434

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idn: more strictly check AppleIDN errors

UIDNA API returns two error values but we were only checking one.
Checking both better aligns the behaviour with that of libidn2.

Closes

idn: more strictly check AppleIDN errors

UIDNA API returns two error values but we were only checking one.
Checking both better aligns the behaviour with that of libidn2.

Closes #14431

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idn: support non-UTF-8 input under AppleIDN

This aligns the behaviour with libidn2 and the curl documentation.

Closes #14431

BINDINGS: add zig binding

Closes #14437

cmake: delete MSVC warning suppression for tests/server

Server code no longer produces this warning.

Closes #14428

dist: add missing `test_*.py` scripts

Closes #14427

tests: show snapshot commit in testcurl

This disambiguates the source code being tested. The output format is
the same as when testing out of a git repo, but with no description and

tests: show snapshot commit in testcurl

This disambiguates the source code being tested. The output format is
the same as when testing out of a git repo, but with no description and
a long hash.

Ref: #14363
Closes #14429

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ws: flags to opcodes should ignore CURLWS_CONT flag

When converting WebSocket flags such as CURLWS_TEXT | CURLWS_CONT we
want to exclude CURLWS_CONT from the lookup.

Closes #143

ws: flags to opcodes should ignore CURLWS_CONT flag

When converting WebSocket flags such as CURLWS_TEXT | CURLWS_CONT we
want to exclude CURLWS_CONT from the lookup.

Closes #14397

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