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e512fbfa67
Change mingw-w64 printf format checks in public curl headers to use `__MINGW_PRINTF_FORMAT` instead of `gnu_printf`. This syncs the format checker with format string macros published via `curl/system.h`. (Also disable format checks for mingw-w64 older than 3.0.0 (2013-09-20) and classic-mingw, which do not support this macro.) This fixes bogus format checker `-Wformat` warnings in 3rd party code using curl format strings with the curl printf functions, when using mingw-w64 7.0.0 (2019-11-10) and older (with GCC, MSVCRT). It also allows to delete two workaounds for this within curl itself: - setting `-D__USE_MINGW_ANSI_STDIO=1` for mingw-w64 via cmake and configure for `docs/examples` and `tests/http/clients`. Ref: c730c8549b5b67e7668ca5d2cd82c3cc183e125d #14640 The format check macro is incompatible (depending on mingw-w64 version and configuration) with the C99 `%z` (`size_t`) format string used internally by curl. To work around this problem, override the format check style in curl public headers to use `gnu_printf`. This is compatible with `%z` in all mingw-w64 versions and allows keeping the C99 format strings internally. Also: - lib/ws.c: add missing space to an error message. - docs/examples/ftpgetinfo.c: fix to use standard printf. Ref: #14643 (take 1) Follow-up to 3829759bd042c03225ae862062560f568ba1a231 #12489 Closes #14703
include
Public include files for libcurl, external users.
They are all placed in the curl subdirectory here for better fit in any kind of environment. You must include files from here using...
#include <curl/curl.h>
... style and point the compiler's include path to the directory holding the curl subdirectory. It makes it more likely to survive future modifications.
The public curl include files can be shared freely between different platforms and different architectures.