C:/Rtools/mingw_32/bin/gcc  -I"c:/R/include" -DNDEBUG -I../windows/openssl-1.0.2h/include -I../windows/libsasl-2.1.26/include -I. -Iyajl -Ibson -Imongoc -DLIBSASL_EXPORTS -DBSON_COMPILATION -DMONGOC_COMPILATION -DMONGOC_HAVE_SASL_CLIENT_DONE -D__USE_MINGW_ANSI_STDIO    -I"d:/Compiler/gcc-4.9.3/local330/include"  -Wno-unused-value -Wno-implicit-function-declaration   -O3 -Wall  -std=gnu99 -mtune=core2 -c bson/bson-iso8601.c -o bson/bson-iso8601.o
bson/bson-iso8601.c: In function '_bson_iso8601_date_parse':
bson/bson-iso8601.c:227:20: warning: 'sec_ptr' may be used uninitialized in this function [-Wmaybe-uninitialized]
    if (sec_len && !parse_num (sec_ptr, sec_len, 2, 0, 60, &sec)) {
                    ^
bson/bson-iso8601.c:273:31: warning: 'millis_ptr' may be used uninitialized in this function [-Wmaybe-uninitialized]
          millis += (millis_ptr[millis_len - i] - '0') * magnitude;
                               ^