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Fix build on NetBSD.

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The NetBSD C library's headers do not expose extensions when
compiling with -std=c99 (as opposed to -std=gnu99 or no -std=
option), so define _NETBSD_SOURCE to get timegm, and functions
that would otherwise require an _XOPEN_SOURCE definition, e.g.
realpath.

Note that, as with FreeBSD, you need gmake to compile janet
on NetBSD, and can also install it from packages.
This commit is contained in:
nia 2020-07-27 00:17:22 +01:00
parent 4cc680965c
commit b731f6ab03
2 changed files with 12 additions and 0 deletions
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5
README.md
View File

@ -115,6 +115,11 @@ gmake test
gmake repl gmake repl
``` ```
### NetBSD
NetBSD build instructions are the same as the FreeBSD build instuctions.
Alternatively, install directly from packages, using `pkgin install janet`.
### Windows ### Windows
1. Install [Visual Studio](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=Community&rel=15#) or [Visual Studio Build Tools](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=BuildTools&rel=15#) 1. Install [Visual Studio](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=Community&rel=15#) or [Visual Studio Build Tools](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=BuildTools&rel=15#)

7
src/core/features.h
View File

@ -38,4 +38,11 @@
#define _XOPEN_SOURCE 500 #define _XOPEN_SOURCE 500
#endif #endif
/* Needed for timegm and other extensions when building with -std=c99.
* It also defines realpath, etc, which would normally require
* _XOPEN_SOURCE >= 500. */
#if !defined(_NETBSD_SOURCE) && defined(__NetBSD__)
#define _NETBSD_SOURCE
#endif
#endif #endif