tests/server/util.c: remove use of strncpy

... and ban the function in code in this directory.

Closes #15213

cmake: allow building tests in unity mode

Makes building tests noticeably faster.

Apply changes/fixes/workarounds to make Unity work:
- rename test variables to avoid collisions

cmake: allow building tests in unity mode

Makes building tests noticeably faster.

Apply changes/fixes/workarounds to make Unity work:
- rename test variables to avoid collisions or shadowing each other when
combined into single units.
- add workaround to avoid applying `lib/memdebug.h` overrides to system
headers declaring/defining `getaddrinfo()`/`freeaddrinfo()` for
`tests/server/resolve.c`. This replaces a previous workaround that
worked for that specific source.
- rename test macro `CTRL` clashing with Cygwin `sys/ioctl.h`.
- add include guard to `test.h`.

Also:
- exclude `tests/http/clients` which are all single-source. (like
`docs/examples`.)

Build time improvements for tests:
- AppVeyor CI:
- MSVC 2008, 2010: 1 minute faster (4m8s -> 2m56s, 3m19s -> 2m24s)
- MSVC 2022 arm64: 3.5 minutes faster (10m18s -> 6m48s)
before: https://ci.appveyor.com/project/curlorg/curl/builds/50522785
after: https://ci.appveyor.com/project/curlorg/curl/builds/50522942
- GHA:
- Cygwin: 1.5 minutes faster (3m13s -> 1m43s)
before: https://github.com/curl/curl/actions/runs/10681535327/job/29605384398
after: https://github.com/curl/curl/actions/runs/10680818726/job/29603130637
- Windows:
before: https://github.com/curl/curl/actions/runs/10680818713
after: https://github.com/curl/curl/actions/runs/10683850187
- MSYS2, mingw-w64: 1 minute faster
- MSVC: 30 seconds faster (3m17s -> 2m48s)
- macOS: double speed (39s -> 18s)
before: https://github.com/curl/curl/actions/runs/10680818753/job/29603133447
after: https://github.com/curl/curl/actions/runs/10683850174/job/29612914515
- Linux: almost double speed (30/31s -> 18s)
before: https://github.com/curl/curl/actions/runs/10681535311/job/29605387156
after: https://github.com/curl/curl/actions/runs/10680818721/job/29603133976
- non-native: no obvious effect.
before: https://github.com/curl/curl/actions/runs/10680818722
after: https://github.com/curl/curl/actions/runs/10683850187
- Old Linux: Unity mode not supported by old CMake, no effect.

Closes #14765

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tidy-up: delete `Makefile.inc` from `EXTRA_DIST`

autotools is adding them automatically. Delete the few ones that were
also added manually.

Closes #14496

build: untangle `CURLDEBUG` and `DEBUGBUILD` macros

`CURLDEBUG` is meant to enable memory tracking, but in a bunch of cases,
it was protecting debug features that were supposed to be gua

build: untangle `CURLDEBUG` and `DEBUGBUILD` macros

`CURLDEBUG` is meant to enable memory tracking, but in a bunch of cases,
it was protecting debug features that were supposed to be guarded with
`DEBUGBUILD`.

Replace these uses with `DEBUGBUILD`.

This leaves `CURLDEBUG` uses solely for its intended purpose: to enable
the memory tracking debug feature.

Also:
- autotools: rely on `DEBUGBUILD` to enable `checksrc`.
Instead of `CURLDEBUG`, which worked in most cases because debug
builds enable `CURLDEBUG` by default, but it's not accurate.
- include `lib/easyif.h` instead of keeping a copy of a declaration.
- add CI test jobs for the build issues discovered.

Ref: https://github.com/curl/curl/pull/13694#issuecomment-2120311894
Closes #13718

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copyright: update all copyright lines and remove year ranges

- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- save

copyright: update all copyright lines and remove year ranges

- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- saves us from pointless churn
- git keeps history for us
- the year range is kept in COPYING

checksrc is updated to allow non-year using copyright statements

Closes #10205

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test644: verify --xattr (with redirect)

copyright: make repository REUSE compliant

Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the

copyright: make repository REUSE compliant

Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.

This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.

Closes #8869

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scripts: move three scripts from lib/ to scripts/

Move checksrc.pl, firefox-db2pem.sh and mk-ca-bundle.pl since they don't
particularly belong in lib/

Also created an EXTRA_DIST

scripts: move three scripts from lib/ to scripts/

Move checksrc.pl, firefox-db2pem.sh and mk-ca-bundle.pl since they don't
particularly belong in lib/

Also created an EXTRA_DIST= in scripts/Makefile.am instead of specifying
those files in the root Makefile.am

Closes #8625

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configure: remove support for "embedded ares"

In March 2010 (commit 4259d2df7dd) we removed the embedded 'ares'
directory from the curl source tree but we have since supported
especi

configure: remove support for "embedded ares"

In March 2010 (commit 4259d2df7dd) we removed the embedded 'ares'
directory from the curl source tree but we have since supported
especially detecting and using that build directory. The time has come
to remove that kludge and ask users to specify the c-ares dir correctly
with --enable-ares.

Closes #8397

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copyright: fix year ranges

Follow-up from 4d2f8006777

curl.se: new home

Closes #6172

tests: make sure checksrc runs on header files too

makefile: make checksrc and hugefile commands "silent"

... to match the style already used for compiling, linking
etc. Acknowledges 'make V=1' to enable verbose.

Closes #3681

includes: remove curl/curlbuild.h and curl/curlrules.h

Rely entirely on curl/system.h now.

Introduced in Aug 2008 with commit 14240e9e109f. Now gone.

Fixes #1456

tests/server: run checksrc by default in debug-builds

make/checksrc: use $srcdir, not $top_srcdir

checksrc/makefile.am: use $top_srcdir to find source files

... to properly support out of source tree builds.

tests: fix make checksrc in servers/

URLs: change all http:// URLs to https://

tests: Distribute CMakeLists.txt files in subdirectories

build: fix circular header inclusion with other packages

This commit renames lib/setup.h to lib/curl_setup.h and
renames lib/setup_once.h to lib/curl_setup_once.h.

Removes the n

build: fix circular header inclusion with other packages

This commit renames lib/setup.h to lib/curl_setup.h and
renames lib/setup_once.h to lib/curl_setup_once.h.

Removes the need and usage of a header inclusion guard foreign
to libcurl. [1]

Removes the need and presence of an alarming notice we carried
in old setup_once.h [2]

----------------------------------------

1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard
up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H,
this single inclusion guard is enough to ensure that inclusion of
lib/setup_once.h done from lib/setup.h is only done once.

Additionally lib/setup.h has always used __SETUP_ONCE_H macro to
protect inclusion of setup_once.h even after commit ec691ca3, this
was to avoid a circular header inclusion triggered when building a
c-ares enabled version with c-ares sources available which also has
a setup_once.h header. Commit ec691ca3 exposes the real nature of
__SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard
foreign to libcurl belonging to c-ares's setup_once.h

The renaming this commit does, fixes the circular header inclusion,
and as such removes the need and usage of a header inclusion guard
foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl.

2 - Due to the circular interdependency of old lib/setup_once.h and the
c-ares setup_once.h header, old file lib/setup_once.h has carried
back from 2006 up to now days an alarming and prominent notice about
the need of keeping libcurl's and c-ares's setup_once.h in sync.

Given that this commit fixes the circular interdependency, the need
and presence of mentioned notice is removed.

All mentioned interdependencies come back from now old days when
the c-ares project lived inside a curl subdirectory. This commit
removes last traces of such fact.

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build: explain current role of LIBS in our Makefile.am files

BLANK_AT_MAKETIME may be used in our Makefile.am files to blank
LIBS variable used in generated makefile at makefile processi

build: explain current role of LIBS in our Makefile.am files

BLANK_AT_MAKETIME may be used in our Makefile.am files to blank
LIBS variable used in generated makefile at makefile processing
time. Doing this functionally prevents LIBS from being used for
all link targets in given makefile.

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build: prevent global LIBS from influencing test server build targets

build: fix Windows build targets damaged since commit 550e403f00

uniformly use AM_CPPFLAGS, avoid deprecated INCLUDES

Since automake 1.12.4, the warnings are issued on running automake:

warning: 'INCLUDES' is the old name for 'AM_CPPFLAGS' (or

uniformly use AM_CPPFLAGS, avoid deprecated INCLUDES

Since automake 1.12.4, the warnings are issued on running automake:

warning: 'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')

Avoid INCLUDES and roll these flags into AM_CPPFLAGS.

Compile tested on:
Ubuntu 10.04 (automake 1:1.11.1-1)
Ubuntu 12.04 (automake 1:1.11.3-1ubuntu2)
Arch Linux (automake 1.12.4)

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