src/Makefile.am: access curl.txt using a relative path, not abs

... to make it work when mounted using different mount points. Like when
generated/used inside and outside of a docker ima

src/Makefile.am: access curl.txt using a relative path, not abs

... to make it work when mounted using different mount points. Like when
generated/used inside and outside of a docker image.

Closes #13320

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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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configure: add --disable-docs flag

Building man pages from curldown sources now requires perl. Add a
--disable-docs flag to configure to enable building and installing
without docume

configure: add --disable-docs flag

Building man pages from curldown sources now requires perl. Add a
--disable-docs flag to configure to enable building and installing
without documentation where perl is not available or man pages are not
required. This is selected automatically (with a warning) when perl is
not found by configure.

Fixes #12832
Closes #12857

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tool: fix the listhelp generation command

The previous command line to generate the tool_listhelp.c source file
broke with 2494b8dd5175cee7.

Make 'make listhelp' invoked in src/

tool: fix the listhelp generation command

The previous command line to generate the tool_listhelp.c source file
broke with 2494b8dd5175cee7.

Make 'make listhelp' invoked in src/ generate it. Also update the
comment in the file to mention the right procedure.

Closes #12786

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autotools: accept linker flags via `CURL_LDFLAGS_{LIB,BIN}`

To allow passing `LDFLAGS` specific to libcurl (`CURL_LDFLAGS_LIB`) and
curl tool (`CURL_LDFLAGS_BIN`).

This makes it

autotools: accept linker flags via `CURL_LDFLAGS_{LIB,BIN}`

To allow passing `LDFLAGS` specific to libcurl (`CURL_LDFLAGS_LIB`) and
curl tool (`CURL_LDFLAGS_BIN`).

This makes it possible to build libcurl and curl with a single
invocation with lib- and tool-specific custom linker flags.

Such flag can be enabling `.map` files, a `.def` file for libcurl DLL,
controlling static/shared, incl. requesting a static curl tool (with
`-static-libtool-libs`) while building both shared and static libcurl.

curl-for-win uses the above and some more.

These options are already supported in `Makefile.mk`. CMake has built-in
variables for this.

Closes #12312

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build: add `src/.checksrc` to source tarball

Regression from e5bb88b8f824ed87620bd923552534c83c2a516e #11958

Bug: https://github.com/curl/curl/pull/11958#issuecomment-1757079071

build: add `src/.checksrc` to source tarball

Regression from e5bb88b8f824ed87620bd923552534c83c2a516e #11958

Bug: https://github.com/curl/curl/pull/11958#issuecomment-1757079071
Reported-by: Romain Geissler
Fixes #12084
Closes #12085

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base64: also build for curl

Since the tool itself now uses the base64 code using the curlx way, it
needs to build also when the tool needs it. Starting now, the tool build
defines BU

base64: also build for curl

Since the tool itself now uses the base64 code using the curlx way, it
needs to build also when the tool needs it. Starting now, the tool build
defines BULDING_CURL to allow lib-side code to use it.

Follow-up to 2e160c9c6525

Closes #12010

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nss: remove support for this TLS library

Closes #11459

docs: provide more see also for cipher options

More cross references. Hide nroff errors.

Closes #11513

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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Makefile.mk: portable Makefile.m32

Update bare GNU Make `Makefile.m32` to:

- Move objects into a subdirectory.
- Add support for MS-DOS. Tested with DJGPP.
- Add support for

Makefile.mk: portable Makefile.m32

Update bare GNU Make `Makefile.m32` to:

- Move objects into a subdirectory.
- Add support for MS-DOS. Tested with DJGPP.
- Add support for Watt-32 (on MS-DOS).
- Add support for AmigaOS.
- Rename `Makefile.m32` to `Makefile.mk`
- Replace `ARCH` with `TRIPLET`.
- Build `tool_hugehelp.c` proper (when tools are available).
- Drop MS-DOS compatibility macro `USE_ZLIB` (replaced by `HAVE_LIBZ`)
- Add support for `ZLIB_LIBS` to override `-lz`.
- Omit object files when building examples.
- Default `CC` to `gcc` once again, for convenience. (Caveat: compiler
name `cc` cannot be set now.)
- Set `-DCURL_NO_OLDIES` for examples, like autotools does.
- Delete `makefile.dj` files. Notice the configuration details and
defaults are not retained with the new method.
- Delete `makefile.amiga` files. A successful build needs a few custom
options. We're also not retaining all build details from the existing
Amiga make files.
- Rename `Makefile.m32` to `Makefile.mk` to reflect that they are not
Windows/MinGW32-specific anymore.
- Add support for new `CFG` options: `-map`, `-debug`, `-trackmem`
- Set `-DNDEBUG` by default.
- Allow using `-DOS=...` in all `lib/config-*.h` headers, syncing this
with `config-win32.h`.
- Look for zlib parts in `ZLIB_PATH/include` and `ZLIB_PATH/lib`
instead of bare `ZLIB_PATH`.

Note that existing build configurations for MS-DOS and AmigaOS likely
become incompatible with this change.

Example AmigaOS configuration:
```
export CROSSPREFIX=/opt/amiga/bin/m68k-amigaos-
export CC=gcc
export CPPFLAGS='-DHAVE_PROTO_BSDSOCKET_H'
export CFLAGS='-mcrt=clib2'
export LDFLAGS="${CFLAGS}"
export LIBS='-lnet -lm'
make -C lib -f Makefile.mk
make -C src -f Makefile.mk
```

Example MS-DOS configuration:
```
export CROSSPREFIX=/opt/djgpp/bin/i586-pc-msdosdjgpp-
export WATT_PATH=/opt/djgpp/net/watt
export ZLIB_PATH=/opt/djgpp
export OPENSSL_PATH=/opt/djgpp
export OPENSSL_LIBS='-lssl -lcrypt'
export CFG=-zlib-ssl
make -C lib -f Makefile.mk
make -C src -f Makefile.mk
```

Closes #9764

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windows: fail early with a missing windres in autotools

`windres` is not always auto-detected by autotools when building for
Windows. When this happened, the build failed with a confusin

windows: fail early with a missing windres in autotools

`windres` is not always auto-detected by autotools when building for
Windows. When this happened, the build failed with a confusing error due
to the empty `RC` command:

```
/bin/bash ../libtool --tag=RC --mode=compile -I../include -DCURL_EMBED_MANIFEST -i curl.rc -o curl.o
[...]
Usage: /sandbox/curl/libtool [OPTION]... [MODE-ARG]...
Try 'libtool --help' for more information.
libtool: error: unrecognised option: '-I../include'
```

Improve this by verifying if `RC` is set, and fail with a clear error
otherwise.

Follow-up to 6de7322c03d5b4d91576a7d9fc893e03cc9d1057

Ref: https://curl.se/mail/lib-2022-10/0049.html
Reported-by: Thomas Glanzmann
Closes #9781

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windows: fix linking .rc to shared curl with autotools

`./configure --enable-shared --disable-static` fails when trying to link
a shared `curl.exe`, due to `libtool` magically changing t

windows: fix linking .rc to shared curl with autotools

`./configure --enable-shared --disable-static` fails when trying to link
a shared `curl.exe`, due to `libtool` magically changing the output
filename of `windres` to one that it doesn't find when linking:

```
/bin/sh ../libtool --tag=RC --mode=compile windres -I../../curl/include -DCURL_EMBED_MANIFEST -i ../../curl/src/curl.rc -o curl.o
libtool: compile: windres -I../../curl/include -DCURL_EMBED_MANIFEST -i ../../curl/src/curl.rc -o .libs/curl.o
[...]
CCLD curl.exe
clang: error: no such file or directory: 'curl.o'
```

Let's resolve this by skipping `libtool` and calling `windres` directly
when building `src` (aka `curl.exe`). Leave `lib` unchanged, as it does
need the `libtool` magic. This solution is compatible with building
a static `curl.exe`.

This build scenario is not CI-tested.

While here, delete an obsolete comment about a permanent `libtool`
warning that we've resolved earlier.

Regression from 6de7322c03d5b4d91576a7d9fc893e03cc9d1057

Reported-by: Christoph Reiter
Fixes #9803
Closes #9805

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windows: add .rc support to autotools builds

After this update autotools builds will compile and link `.rc` resources
to Windows executables. Bringing this feature on par with CMake and

windows: add .rc support to autotools builds

After this update autotools builds will compile and link `.rc` resources
to Windows executables. Bringing this feature on par with CMake and
Makefile.m32 builds. And also making it unnecessary to improvise these
steps manually, while monkey patching build files, e.g. [0].

You can customize the resource compiler via the `RC` envvar, and its
options via `RCFLAGS`.

This harmless warning may appear throughout the build, even though the
autotools manual documents [1] `RC` as a valid tag, and it fails when
omitting one:
`libtool: error: ignoring unknown tag RC`

[0] https://github.com/curl/curl-for-win/blob/535f19060d4b708f72e75dd849409ce50baa1b84/curl-autotools.sh#L376-L382
[1] https://www.gnu.org/software/libtool/manual/html_node/Tags.html

Closes #9521

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tool_hugehelp: make hugehelp a blank macro when disabled

Closes #9485

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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macos9: remove partial support

The support for compiling on Mac OS 9 hasn't been modified since 2001
and has no active maintainer or packager, so it's time to remove it as
it's incre

macos9: remove partial support

The support for compiling on Mac OS 9 hasn't been modified since 2001
and has no active maintainer or packager, so it's time to remove it as
it's incredibly unlikely to work. If a maintainer re-emerges it can be
resurrected from Git history.

Closes: #8836
Reviewed-by: Daniel Stenberg <daniel@haxx.se>

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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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netware: remove support

There are no current users and no Netware related changes done in the
code for over 13 years is a clear sign this is abandoned.

Closes #8358

tool_listhelp: easier to generate with gen.pl

tool_listhelp.c is now a separate file with only the command line --help
output, exactly as generated by gen.pl. This makes it easier to gen

tool_listhelp: easier to generate with gen.pl

tool_listhelp.c is now a separate file with only the command line --help
output, exactly as generated by gen.pl. This makes it easier to generate
updates according to what's in the docs/cmdline-opts docs.

cd $srcroot/docs/cmdline-opts
./gen.pl listhelp *.d > $srcroot/src/tool_listhelp.c

With a configure build, this also works:

make -C src listhelp

Closes #7787

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metalink: remove

Warning: this will make existing curl command lines that use metalink to
stop working.

Reasons for removal:

1. We've found several security problems an

metalink: remove

Warning: this will make existing curl command lines that use metalink to
stop working.

Reasons for removal:

1. We've found several security problems and issues involving the
metalink support in curl. The issues are not detailed here. When
working on those, it become apparent to the team that several of the
problems are due to the system design, metalink library API and what
the metalink RFC says. They are very hard to fix on the curl side
only.

2. The metalink usage with curl was only very briefly documented and was
not following the "normal" curl usage pattern in several ways, making
it surprising and non-intuitive which could lead to further security
issues.

3. The metalink library was last updated 6 years ago and wasn't so
active the years before that either. An unmaintained library means
there's a security problem waiting to happen. This is probably reason
enough.

4. Metalink requires an XML parsing library, which is complex code (even
the smaller alternatives) and to this day often gets security
updates.

5. Metalink is not a widely used curl feature. In the 2020 curl user
survey, only 1.4% of the responders said that they'd are using it. In
2021 that number was 1.2%. Searching the web also show very few
traces of it being used, even with other tools.

6. The torrent format and associated technology clearly won for
downloading large files from multiple sources in parallel.

Cloes #7176

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curl.se: new home

Closes #6172

build: drop support for building with Watcom

These files are not maintained, they seem to have no users, Watcom
compilers look like not having users nor releases anymore.

Closes

build: drop support for building with Watcom

These files are not maintained, they seem to have no users, Watcom
compilers look like not having users nor releases anymore.

Closes #5918

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src/makefile: fix uncompressed hugehelp.c generation

Regression from 5cf5d57ab9 (7.64.1)

Fixed-by: Lance Ware
Fixes #4176
Closes #4177

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