--- /dev/null
+Description: Fix FTBFS on some archs.
+Author: James Cowgill <jcowgill@debian.org>
+jcowgill@debian.org
+Forwarded: no
+
+Index: giada/src/utils/string.cpp
+===================================================================
+--- giada.orig/src/utils/string.cpp
++++ giada/src/utils/string.cpp
+@@ -108,7 +108,9 @@ std::string gu_format(const char* format
+ /* Compute the size of the new expanded string (i.e. with replacement taken
+ into account). */
+
+- size_t size = vsnprintf(nullptr, 0, format, args);
++ va_start(args, format);
++ size_t size = vsnprintf(nullptr, 0, format, args) + 1;
++ va_end(args);
+
+ /* Create a new temporary char array to hold the new expanded string. */
+