Add CI checker to compare `libcurl.pc` and `curl-config` files
generated by autotools and cmake builds.
Fix differences and apply tiny cleanups:
- curl-config: use single-quotes for literals.
- curl-config: quote all variables.
- curl-config: replace double with single quotes in a substituted value
that's always literal (`@prefix@`).
- libcurl.pc: spelling in `Description:`.
- libcurl.pc: avoid substitution in a comment.
- cmake: fill `libdir` with `${exec_prefix}` instead of a literal.
To sync with './configure'.
- configure: fix `CURL_CA_BUNDLE` value to not generate nested quotes
in `curl-config`.
- configure: add missing `LDFLAGS` to `Libs.private` in `libcurl.pc`.
To sync with CMake.
- cmake: skip adding `CMAKE_C_IMPLICIT_LINK_LIBRARIES` for MINGW and
UNIX. They added these values as seen in CI:
MINGW: `-lmingw32 -lgcc -lmoldname -lmingwex -ladvapi32 -lshell32 -luser32 -lkernel32 -lmingw32 -lgcc -lmoldname -lmingwex`
Linux: `-lgcc -lgcc_s -lc -lgcc -lgcc_s`
- cmake: delete FIXME about enabling libssh2 by default.
`./configure` has special defaults for these packages (called: "off"):
brotli, zstd, libpsl, libssh2, libssh, wolfssl, librtmp
It looks for them, but only at system locations, which makes them
never detected e.g. on macOS. CMake doesn't offer such default mode
for now.
- GHA/macos: drop now redundant `-DCURL_DISABLE_LDAPS=ON`.
- cmake: use `CMAKE_INSTALL_INCLUDEDIR` and `CMAKE_INSTALL_LIBDIR`
instead of hardcoded `include`/`lib` when generating `libcurl.pc`.
Updates to the GHA workflow:
- move autotools out-of-tree and rename cmake out-of-tree directory
to `bld_cm` to tell it's cmake.
- disable static libcurl for `./configure` to match cmake.
- enable `pkg-config` debug output with `./configure`.
- dump list of Homebrew packages on macOS.
- dump `./configure` detailed logs.
- disable zstd and brotli for Linux, to match cmake.
There remain differences, mostly due to detection order and method. Also
some values are inherently different when using CMake and autotools,
such as `--cc`, `--configure`. autotools also generates duplicates for
`-lssl` and `-lcrypto`. macOS LDAP wants to link `-lber` while autotools
doesn't. Some build defaults are also different in autotools and cmake.
These differences are smoothened out for now by the checker script, or
via build options. Notice that lib order (a dupes) _can_ be significant
in some cases. E.g. the binutils linker is infamous for that on Windows.
Closes#14681
- configure: disable pthreads by default on Windows.
- configure: disable detecting `fseeko()` on Windows.
(It exists in mingw-w64 2.0.0 and newer, but it's permanently ignored
in CMake, as this function is never necessary on Windows.)
- extend existing exceptions with their Windows variants.
- `lib/formdata.c`: prioritize `_fseeki64()` over `fseeko()`.
To reduce the difference between Windows builds, which now all use
`_fseeki64()`.
- cmake: perm-enable `HAVE_DIRENT_H` and `HAVE_OPENDIR` for mingw-w64,
to match configure.
Follow-up to bfe54b0e88#13137
This in theory could make the dir listing feature work in mingw-w64
build, but in my tests (on WINE) it failed at the preceding `open()`
call.
- cmake: perm-enable `HAVE_STRINGS_H` and `HAVE_UTIME_H` for mingw-w64,
to match configure. (They are wrappers and make no difference in the build.)
Also:
- configure: sync `USE_MANUAL` macro with cmake, by only setting it for
`src`. Drop checker exception.
- CI: use `--disable-dependency-tracking` in existing jobs.
- CI: install packages before git checkout, in existing jobs.
Closes#14678
Also:
- explicitly disable libpsl in CI to avoid configure warning, where
necessary.
- add TODO to make this warning an error (to match autotools.)
Follow-up to 2998874bb6#12661Closes#14533
- sync cmake macOS `OS` value manually with the autotools one.
- stop exporting/subst-ing `HAVE_OPENSSL_QUIC` from autotools.
The variable was only used internally.
- exclude a dependency detection symbol.
- allow to run when the workflow itself was updated.
- simplify cmake command.
- fix indentation.
Closes#14546
Uses scripts/cmp-config.pl two compare two curl_config.h files,
presumbly generated with configure and cmake. It displays the
differences and filters out a lot of known lines we ignore.
The script also shows the matches that were *not* used. Possibly
subjects for removal.
Closes#11964
