commit 3013ed48b333c70d5960393412a3b2c541cc97ba
author m-gupta <gupt.manoj@gmail.com> Mon Sep 16 12:24:13 2019 -0700
committer Jordan Bayles <jophba@chromium.org> Mon Sep 16 12:24:13 2019 -0700
tree a150e71bb33de6330746900df5b9b6ff6ec175bd
parent 2cb9a5803e5123efcc0a08f7c3f52dd521917a34

jsoncpp: Define JSON_USE_INT64_DOUBLE_CONVERSION for clang as well. (#1002)

The current check to define JSON_USE_INT64_DOUBLE_CONVERSION
works for GCC but not clang.

Clang does define __GNUC__ but with a value 4 which misses
the check for >= 6.

This avoids the -Wimplicit-int-float-conversion warning
when jsoncpp is built with a recent version of clang.

Signed-off-by: Manoj Gupta <manojgupta@google.com>

include/json/config.h

diff --git a/include/json/config.h b/include/json/config.h
index 6426c3b..0ff5968 100644
--- a/include/json/config.h
+++ b/include/json/config.h
@@ -104,7 +104,9 @@
 #define JSONCPP_OP_EXPLICIT
 #endif
 
-#if defined(__GNUC__) && (__GNUC__ >= 6)
+#if defined(__clang__)
+#define JSON_USE_INT64_DOUBLE_CONVERSION 1
+#elif defined(__GNUC__) && (__GNUC__ >= 6)
 #define JSON_USE_INT64_DOUBLE_CONVERSION 1
 #endif