Disable gcc < 5

Summary: [Folly] Disable `gcc < 5` via compile-time error. Reviewed By: mzlee Differential Revision: D14590065 fbshipit-source-id: 3d184f58f6b2f2d616092255002a95e96c7bc31c

Disable gcc < 5
Summary: [Folly] Disable `gcc < 5` via compile-time error. Reviewed By: mzlee Differential Revision: D14590065 fbshipit-source-id: 3d184f58f6b2f2d616092255002a95e96c7bc31c
3886ce15 · Yedidya Feldblum · Facebook Github Bot · a4a4bec7 · 3886ce15
Commit 3886ce15 authored Mar 25, 2019 by Yedidya Feldblum Committed by Facebook Github Bot Mar 25, 2019
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folly/Portability.h folly/Portability.h +4 -0

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--- a/folly/Portability.h
+++ b/folly/Portability.h
@@ -22,6 +22,10 @@
 static_assert(__cplusplus >= 201402L, "__cplusplus >= 201402L");
 #endif

+#if defined(__GNUC__) && !defined(__clang__)
+static_assert(__GNUC__ >= 5, "__GNUC__ >= 5");
+#endif
+
 #include <cstddef>

 #include <folly/CPortability.h>