tidy-up: OS names

Use these words and casing more consistently across text, comments and
one curl tool output:
AIX, ALPN, ANSI, BSD, Cygwin, Darwin, FreeBSD, GitHub, HP-UX, Linux,

tidy-up: OS names

Use these words and casing more consistently across text, comments and
one curl tool output:
AIX, ALPN, ANSI, BSD, Cygwin, Darwin, FreeBSD, GitHub, HP-UX, Linux,
macOS, MS-DOS, MSYS, MinGW, NTLM, POSIX, Solaris, UNIX, Unix, Unicode,
WINE, WebDAV, Win32, winbind, WinIDN, Windows, Windows CE, Winsock.

Mostly OS names and a few more.

Also a couple of other minor text fixups.

Closes #14360

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GIT-INFO.md: remove version requirements

Keep them in docs/INTERNALS.md

Bump lowest perl to 5.8

Closes #14112

reuse: add copyright + license info to individual docs/*.md files

Instead of use 'docs/*.md' in dep5. For clarity and avoiding a wide-
matching wildcard.

+ Remove mention of old

reuse: add copyright + license info to individual docs/*.md files

Instead of use 'docs/*.md' in dep5. For clarity and avoiding a wide-
matching wildcard.

+ Remove mention of old files from .reuse/dep5
+ add info to .github/dependabot.yml
+ make scripts/copyright.pl warn on non-matching patterns

Closes #13245

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docs: ascii version of manpage without nroff

Create ASCII version of manpage without nroff

- build src/tool_hugegelp.c from the ascii manpage
- move the the manpage and the as

docs: ascii version of manpage without nroff

Create ASCII version of manpage without nroff

- build src/tool_hugegelp.c from the ascii manpage
- move the the manpage and the ascii version build to docs/cmdline-opts
- remove all use of nroff from the build process
- should make the build entirely reproducible (by avoiding nroff)

- partly reverts 2620aa9 to build libcurl option man pages one by one
in cmake because the appveyor builds got all crazy until I did

The ASCII version of the manpage

- is built with gen.pl, just like the manpage is
- has a right-justified column making the appearance similar to the previous
version
- uses a 4-space indent per level (instead of the old version's 7)
- does not do hyphenation of words (which nroff does)

History

We first made the curl build use nroff for building the hugehelp file in
December 1998, for curl 5.2.

Closes #13047

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gskit: remove

We remove support for building curl with gskit.

- This is a niche TLS library, only running on some IBM systems
- no regular curl contributors use this backend

gskit: remove

We remove support for building curl with gskit.

- This is a niche TLS library, only running on some IBM systems
- no regular curl contributors use this backend
- no CI builds use or verify this backend
- gskit, or the curl adaption for it, lacks many modern TLS features
making it an inferior solution
- build breakages in this code take weeks or more to get detected
- fixing gskit code is mostly done "flying blind"

This removal has been advertized in DEPRECATED in Jan 2, 2023 and it has
been mentioned on the curl-library mailing list.

It could be brought back, this is not a ban. Given proper effort and
will, gskit support is welcome back into the curl TLS backend family.

Closes #11460

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nss: remove support for this TLS library

Closes #11459

configure: check for nghttp2_session_get_stream_local_window_size

The http2 code uses it now. Introduced in nghttp2 1.15.0 (Sep 2016)

Fixes #11470
Reported-by: Paul Howarth

configure: check for nghttp2_session_get_stream_local_window_size

The http2 code uses it now. Introduced in nghttp2 1.15.0 (Sep 2016)

Fixes #11470
Reported-by: Paul Howarth
Closes #11473

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docs: bump the minimum perl version to 5.6

It's actually been this way since at least 2012 (when a 3-argument open
was added to runtests.pl). Given the lack of complaints in the interim,

docs: bump the minimum perl version to 5.6

It's actually been this way since at least 2012 (when a 3-argument open
was added to runtests.pl). Given the lack of complaints in the interim,
it's safe to call this 23 year old perl version the minimum.

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INTERNALS.md: grammar

Closes #10607

INTERNALS: cleanup

- remove "operating systems" (mostly outdated)

- upodate the "build tools"

Closes #10162

docs: spellfixes

Pointed by the new CI job

docs: fix proselint complaints

INTERNALS: bring back the "Library symbols" section

Most contents was moved, but this text should remain here.

Follow-up to: d324ac8
Reported-by: Viktor Szakats
Bug: https:/

INTERNALS: bring back the "Library symbols" section

Most contents was moved, but this text should remain here.

Follow-up to: d324ac8
Reported-by: Viktor Szakats
Bug: https://github.com/curl/curl/pull/9027#discussion_r903382326
Closes #9037

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docs/INTERNALS.md: clean up, refer to the book

The explanatory parts are now in the everything curl book (which can
also use images etc). This document now refers to that resource and on

docs/INTERNALS.md: clean up, refer to the book

The explanatory parts are now in the everything curl book (which can
also use images etc). This document now refers to that resource and only
leaves listings of supported versions of libs, tools and operating
systems. See https://everything.curl.dev/internals

Closes #8467

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docs: grammar proofread, typo fixes

(Partially automated) proofread of most of the documentation, leading to
various typo fixes.

Closes #8353

docs: update IETF links to use datatracker

The tools.ietf.org domain has been deprecated a while now, with the
links being redirected to datatracker.ietf.org.

Rather than make p

docs: update IETF links to use datatracker

The tools.ietf.org domain has been deprecated a while now, with the
links being redirected to datatracker.ietf.org.

Rather than make people eat that redirect time, this change switches the
URL to a more canonical source.

Closes #8317

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language: "email"

Missed three occurrences.

Follow-up to 7a92f86

misc: s/e-mail/email

Consistency is king. Following the lead in everything curl.

Closes #8159

docs: address proselint nits

- avoid exclamation marks
- use consistent number of spaces after periods: one
- avoid clichés
- avoid using 'very'

Closes #8060

docs: reduce/avoid English contractions

You're => You are
Hasn't => Has not
Doesn't => Does not
Don't => Do not
You'll => You will
etc

Closes #7930

docs: reduce use of "very"

"Very" should be avoided in most texts. If intensifiers are needed, try
find better words instead.

Closes #7936

INTERNALS: c-ares has a new home: c-ares.org

INTERNALS: bump c-ares requirement to 1.16.0

Since ba904db0705c93 we use ares_getaddrinfo, added in c-ares 1.16.0

docs: improve INTERNALS.md regarding getsock cb

This adds the I/O prefix to indicate that those "actions" are kind-of
related to those found in select(2) or poll(2) (reading/writing).

docs: improve INTERNALS.md regarding getsock cb

This adds the I/O prefix to indicate that those "actions" are kind-of
related to those found in select(2) or poll(2) (reading/writing).

It also adds a note where the prototypes of those functions can be found
in the source code.

Closes #7092

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docs: document attach in INTERNALS.md

The new field in the Curl_handler struct still lacks documentation. This
adds it it from the information extracted from lib/urldata.h:797

C

docs: document attach in INTERNALS.md

The new field in the Curl_handler struct still lacks documentation. This
adds it it from the information extracted from lib/urldata.h:797

Closes #7091

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