build: assume stdint.h

curl requires `stdint.h` from C99, and no longer builds without it since
v8.18.0 (after dropping VS2008 support). Assume it's available, drop
feature checks.

Also:
- drop duplicate `stdint.h` includes.
- introduce internal `HAVE_UINTPTR_T`, enabled by default.
- OS400: disable `HAVE_UINTPTR_T`.
- build: keep cmake pre-fill and `cmp-config.pl` exception because cmake
  and autotools both detect `stdint.h` implicitly.

Co-authored-by: Dan Fandrich
Ref: #20405
Ref: #20384
Follow-up to 2e1a045d89 #17931

Closes #20406
This commit is contained in:
Viktor Szakats 2026-01-21 16:20:51 +01:00
parent f062b4b903
commit feb52be197
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14 changed files with 8 additions and 31 deletions

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@ -25,10 +25,6 @@
***************************************************************************/
#include "urldata.h"
#ifdef USE_HTTPSRR
# include <stdint.h>
#endif
#ifndef CURL_DISABLE_DOH
typedef enum {