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openssl-3.4.1: Applied our changes, regenerated files, added missing files and functions. This time with a three way merge. bugref:10890
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| 1 | Notes on ANSI C
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| 2 | ===============
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| 3 |
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| 4 | When building for pure ANSI C (C89/C90), you must configure with at least
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| 5 | the following configuration settings:
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| 6 |
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| 7 | - `no-asm`
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| 8 |
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| 9 | There are cases of `asm()` calls in our C source, which isn't supported
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| 10 | in pure ANSI C.
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| 11 |
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| 12 | - `no-secure-memory`
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| 13 |
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| 14 | The secure memory calls aren't supported with ANSI C.
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| 15 |
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| 16 | - `-D_XOPEN_SOURCE=1`
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| 17 |
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| 18 | This macro enables the use of the following types, functions and global
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| 19 | variables:
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| 20 |
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| 21 | - `timezone`
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| 22 |
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| 23 | - `-D_POSIX_C_SOURCE=200809L`
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| 24 |
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| 25 | This macro enables the use of the following types, functions and global
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| 26 | variables:
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| 27 |
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| 28 | - `ssize_t`
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| 29 | - `strdup()`
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| 30 |
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| 31 | It's arguable that with gcc and clang, all of these issues are removed when
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| 32 | defining the macro `_DEFAULT_SOURCE`. However, that effectively sets the C
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| 33 | language level to C99, which isn't ANSI C.
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