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util/nvmutil: enable arc4random on linux

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not available on older systems. can just pass
the relevant flag in the compiler:

HAVE_ARC4RANDOM_BUF=0 at build time if you need
the fallback.

Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-14 18:57:40 +00:00
parent 8ccdde57e1
commit 5b4168c763
1 changed files with 7 additions and 1 deletions
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util/nvmutil/nvmutil.c
+7 -1
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@@ -15,8 +15,14 @@
* -Os -Wall -Wextra -Werror -pedantic -std=c90 * -Os -Wall -Wextra -Werror -pedantic -std=c90
*/ */
/*
* NOTE: older Linux lacked arc4random.
* added in glibc 2.36. Just pass HAVE_ARC4RANDOM_BUF=0
* at build time if you need old Linux / other libc.
*/
#if defined(__OpenBSD__) || defined(__FreeBSD__) || \ #if defined(__OpenBSD__) || defined(__FreeBSD__) || \
defined(__NetBSD__) || defined(__APPLE__) defined(__NetBSD__) || defined(__APPLE__) || \
defined(__linux__)
#ifndef HAVE_ARC4RANDOM_BUF #ifndef HAVE_ARC4RANDOM_BUF
#define HAVE_ARC4RANDOM_BUF 1 #define HAVE_ARC4RANDOM_BUF 1
#endif #endif