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From: Antonio Terceiro <terceiro@debian.org>
Date: Tue, 16 Aug 2016 11:13:12 -0300
Subject: Seed RNG to 0 during builds
This helps making the build reproducible
---
ext/RMagick/rmmain.cpp | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/ext/RMagick/rmmain.cpp b/ext/RMagick/rmmain.cpp
index 2675b3e..b291ae9 100644
--- a/ext/RMagick/rmmain.cpp
+++ b/ext/RMagick/rmmain.cpp
@@ -1802,6 +1802,14 @@ Init_RMagick2(void)
SetFatalErrorHandler(rm_fatal_error_handler);
SetErrorHandler(rm_error_handler);
SetWarningHandler(rm_warning_handler);
+
+ if (getenv("SOURCE_DATE_EPOCH") != NULL) {
+#if defined(IMAGEMAGICK_7)
+ SetRandomSecretKey(0);
+#else
+ SeedPseudoRandomGenerator(0);
+#endif
+ }
}
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