- All files have prominent copyright and SPDX identifier
- If not embedded in the file, in the .reuse/dep5 file
- All used licenses are in LICENSES/ (not shipped in tarballs)
- A new REUSE CI job verify that all files are OK
Assisted-by: Viktor Szakats
Closes#1084
Also:
- uppercase `(C)`.
- add missing 'All rights reserved.' lines.
- drop duplicate 'Author' lines.
- add copyright headers where missing.
- enable copyright header check in checksrc.
Reasons for deleting years (copied as-is from curl):
- 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
Closes#1082
- update `AC_HELP_STRING' to 'AS_HELP_STRING`:
```
configure.ac:[...]: warning: The macro `AC_HELP_STRING' is obsolete.
```
"AC_HELP_STRING is deprecated in 2.70+ and I believe AS_HELP_STRING works
already since 2.59 so bump the minimum required version to that."
Ref: a59f046116
- simplify to avoid:
```
src/Makefile.inc:48: warning: variable 'EXTRA_DIST_SOURCES' is defined but no program or
src/Makefile.inc:48: library has 'DIST' as canonical name (possible typo)
```
Regression from 2c18b6fc8d
- `AC_TRY_LINK`/`AC_TRY_COMPILE`:
```
configure.ac:335: warning: The macro `AC_TRY_COMPILE' is obsolete.
configure.ac:335: warning: The macro `AC_TRY_LINK' is obsolete.
```
- `libtool`-related ones:
```
configure.ac:70: warning: The macro `AC_LIBTOOL_WIN32_DLL' is obsolete.
configure.ac:70: warning: AC_LIBTOOL_WIN32_DLL: Remove this warning and the call to _LT_SET_OPTION when you
configure.ac:70: put the 'win32-dll' option into LT_INIT's first parameter.
configure.ac:71: warning: The macro `AC_PROG_LIBTOOL' is obsolete.
```
Using code copied from curl:
9ce7eee070/m4/xc-lt-iface.m4 (L157-L163)
- delete commented and obsolete `AC_HEADER_STDC`.
- formatting.
Most cherry-picked from `autoupdate` updates.
Cherry-picked from #1017Closes#1021
