Subject: [PATCH v3 12/13] config.mak.uname: add arc4random to the cygwin build

From: Ramsay Jones <[email-masked]>
Date: Thu, 17 Apr 2025 00:18:33 +0100

The arc4random_buf() function has been available in cygwin since
about 2016 (somewhere in the v2.x branch). Set the CSPRNG_METHOD
build variable to 'arc4random', in the cygwin section, to enable
the use of this cryptographically-secure pseudorandom number
function. Note that the autoconf and new meson builds also enable
this function.

Signed-off-by: Ramsay Jones <[email-masked]>
---
 config.mak.uname | 1 +
 1 file changed, 1 insertion(+)

diff --git a/config.mak.uname b/config.mak.uname
index e7bd07cf6e..330741eb5a 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -254,6 +254,7 @@ ifeq ($(uname_O),Cygwin)
 	HAVE_CLOCK_GETTIME = YesPlease
 	HAVE_CLOCK_MONOTONIC = YesPlease
 	HAVE_SYSINFO = YesPlease
+	CSPRNG_METHOD = arc4random
 	HAVE_ALLOCA_H = YesPlease
 	NEEDS_LIBICONV = YesPlease
 	NO_FAST_WORKING_DIRECTORY = UnfortunatelyYes
-- 
2.49.0