mirror of https://github.com/jarun/nnn.git
3686ef756a
Fixes the build on NetBSD 9 on arm64.
GCC expands alloca() to __builtin_alloca() but only in nonstandard mode,
e.g. when -std=... is not supplied. In standards mode (with -std=...)
alloca() is left undefined by GCC. The C library may define it but it
also may not, as on NetBSD on arm64:
$ uname -srp
NetBSD 9.0 aarch64
$ cat alloca.c
#include <stdlib.h>
int main() { char *p = alloca(10); }
$ gcc alloca.c
$ gcc -std=c99 alloca.c
alloca.c:(.text+0xc): warning: Warning: reference to the libc
supplied alloca(3); this most likely will not work. Please use the
compiler provided version of alloca(3), by supplying the
appropriate compiler flags (e.g. not -std=c89).
ld: alloca.c:(.text+0xc): undefined reference to `alloca'
The fix is to either not use standards mode (undesirable) or to
explicitly use the builtin, which is what this patch does.
This is also sufficient for Solarius/Illumos so that check and include
are removed.
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| .. | ||
| .clang-tidy | ||
| dbg.h | ||
| nnn.c | ||
| nnn.h | ||