This patch fixes FTBFS problems on big endian architectures (ppc64 and s390x)
This patch is an upstream fix, which will appear in the next version

--- mariadb-connector-c-2.3.2-src/libmariadb/my_stmt_codec.c	2017-01-17 10:53:54.000000000 +0100
+++ mariadb-connector-c-2.3.2-src/libmariadb/my_stmt_codec.c_patched	2017-01-23 23:24:00.489702554 +0100
@@ -358,7 +358,7 @@ static void convert_from_long(MYSQL_BIND
     {
       float fval;
       fval= is_unsigned ? (float)(ulonglong)(val) : (float)val;
-      float4store(r_param->buffer, fval);
+      float4store((float *)r_param->buffer, fval);
       *r_param->error= is_unsigned ? (ulonglong)fval != (ulonglong)val : (longlong)fval != val;
       r_param->buffer_length= 4;
     }