add gcc error faq
diff --git a/docs/mynewt_faq/troubleshoot_faq.rst b/docs/mynewt_faq/troubleshoot_faq.rst
index 7d2e97c..27bbd9d 100644
--- a/docs/mynewt_faq/troubleshoot_faq.rst
+++ b/docs/mynewt_faq/troubleshoot_faq.rst
@@ -77,4 +77,20 @@
pkg.homepage:
pkg.cflags:
- - -DENABLE_TRACE
\ No newline at end of file
+ - -DENABLE_TRACE
+
+Bug With Older Versions of ``gcc``
+----------------------------------
+
+**Q**: I got the following error using ``newt build``. How do I fix it?
+
+.. code-block:: console:
+
+ Error: repos/apache-mynewt-core/sys/log/modlog/src/modlog.c: In function 'modlog_alloc':
+ repos/apache-mynewt-core/sys/log/modlog/src/modlog.c:61:23: error: missing braces around initializer [-Werror=missing-braces]
+ *mm = (struct modlog_mapping) { 0 };
+ ^
+ repos/apache-mynewt-core/sys/log/modlog/src/modlog.c:61:23: error: (near initialization for '(anonymous).next') [-Werror=missing-braces]
+ cc1: all warnings being treated as errors
+
+**A**: That is a bug in older versions of ``gcc`` (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119). The recommended ``gcc`` version is 7.x.
