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build: tidy up deprecation suppression, enable warnings for clang

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Suppress deprecation warnings the closest to the deprecated code, using
`CURL_IGNORE_DEPRECATION()`. Then drop build-specific suppressions, and
file-wide ones. The latter is not compatible with Unity mode. Also
replace manual suppressions with a macro to apply to all compilers with
deprecation warning support. Also enable deprecation warnings for clang.

- curl/curl.h: enable deprecation warnings for clang.

- docs/examples: stop setting `CURL_DISABLE_DEPRECATION` with autotools.
  Suppression moved to C-level earlier. Syncs with cmake.
  Follow-up to 5fc61a37c1 #14123

- tests/http/clients: stop setting `CURL_DISABLE_DEPRECATION` in
  autotools. If it becomes necessary in the future, it can be done in
  C via the macro. Syncs with cmake.

- lib1545: stop setting `CURL_DISABLE_DEPRECATION` in autotools.
  Drop guard from test source.
  Follow-up to 0f10360073 #12444

- libtest, unit: replace `CURL_DISABLE_DEPRECATION` with
  `CURL_IGNORE_DEPRECATION()`.

- docs/examples: replace pragmas with `CURL_IGNORE_DEPRECATION()`.

Closes #14789
This commit is contained in:
Viktor Szakats 2024-09-05 02:11:35 +02:00
parent e1ab01d1bd
commit 5cefda1b93
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13 changed files with 280 additions and 239 deletions
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9
include/curl/curl.h
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@ -34,10 +34,11 @@
#endif
/* Compile-time deprecation macros. */
#if (defined(__GNUC__) && \
((__GNUC__ > 12) || ((__GNUC__ == 12) && (__GNUC_MINOR__ >= 1 ))) || \
defined(__IAR_SYSTEMS_ICC__)) && \
!defined(__INTEL_COMPILER) && \
#if (defined(__GNUC__) && \
((__GNUC__ > 12) || ((__GNUC__ == 12) && (__GNUC_MINOR__ >= 1))) || \
(defined(__clang__) && __clang_major__ >= 3) || \
defined(__IAR_SYSTEMS_ICC__)) && \
!defined(__INTEL_COMPILER) && \
!defined(CURL_DISABLE_DEPRECATION) && !defined(BUILDING_LIBCURL)
#define CURL_DEPRECATED(version, message) \
__attribute__((deprecated("since " # version ". " message)))