gcc -std=gnu99 -I/usr/share/R/include -DNDEBUG -I. -Iyajl -Ibson -Imongoc -include apple.h -include mlfeatures.h -I/opt/csw/include -DBSON_COMPILATION -DMONGOC_COMPILATION      -fpic  -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -g  -O3 -Wall -pipe -pedantic -std=gnu99 -c bson/bson-context.c -o bson/bson-context.o
In file included from bson/bson-context.c:32:0:
bson/bson-context-private.h:31:4: warning: type of bit-field ‘flags’ is a GCC extension [-Wpedantic]
    bson_context_flags_t flags : 7;
    ^
gcc -std=gnu99 -I/usr/share/R/include -DNDEBUG -I. -Iyajl -Ibson -Imongoc -include apple.h -include mlfeatures.h -I/opt/csw/include -DBSON_COMPILATION -DMONGOC_COMPILATION      -fpic  -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -g  -O3 -Wall -pipe -pedantic -std=gnu99 -c bson/bson-iso8601.c -o bson/bson-iso8601.o
bson/bson-iso8601.c: In function ‘_bson_iso8601_date_parse’:
bson/bson-iso8601.c:227:30: 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;
                               ^
gcc -std=gnu99 -I/usr/share/R/include -DNDEBUG -I. -Iyajl -Ibson -Imongoc -include apple.h -include mlfeatures.h -I/opt/csw/include -DBSON_COMPILATION -DMONGOC_COMPILATION      -fpic  -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -g  -O3 -Wall -pipe -pedantic -std=gnu99 -c bson/bson-oid.c -o bson/bson-oid.o
In file included from bson/bson-oid.c:24:0:
bson/bson-context-private.h:31:4: warning: type of bit-field ‘flags’ is a GCC extension [-Wpedantic]
    bson_context_flags_t flags : 7;
    ^
gcc -std=gnu99 -I/usr/share/R/include -DNDEBUG -I. -Iyajl -Ibson -Imongoc -include apple.h -include mlfeatures.h -I/opt/csw/include -DBSON_COMPILATION -DMONGOC_COMPILATION      -fpic  -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -g  -O3 -Wall -pipe -pedantic -std=gnu99 -c mongoc/mongoc-bulk-operation.c -o mongoc/mongoc-bulk-operation.o
In file included from mongoc/mongoc-bulk-operation-private.h:26:0,
                 from mongoc/mongoc-bulk-operation.c:19:
mongoc/mongoc-write-command-private.h:46:10: warning: type of bit-field ‘ordered’ is a GCC extension [-Wpedantic]
          uint8_t   ordered : 1;
          ^
mongoc/mongoc-write-command-private.h:47:10: warning: type of bit-field ‘multi’ is a GCC extension [-Wpedantic]
          uint8_t   multi : 1;
          ^
mongoc/mongoc-write-command-private.h:50:10: warning: type of bit-field ‘ordered’ is a GCC extension [-Wpedantic]
          uint8_t   ordered : 1;
          ^
mongoc/mongoc-write-command-private.h:51:10: warning: type of bit-field ‘allow_bulk_op_insert’ is a GCC extension [-Wpedantic]
          uint8_t   allow_bulk_op_insert : 1;
          ^
mongoc/mongoc-write-command-private.h:54:10: warning: type of bit-field ‘ordered’ is a GCC extension [-Wpedantic]
          uint8_t   ordered : 1;
          ^
-DBSON_COMPILATION -DMONGOC_COMPILATION      -fpic  -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -g  -O3 -Wall -pipe -pedantic -std=gnu99 -c mongoc/mongoc-collection.c -o mongoc/mongoc-collection.o
In file included from mongoc/mongoc-bulk-operation-private.h:26:0,
                 from mongoc/mongoc-collection.c:22:
mongoc/mongoc-write-command-private.h:46:10: warning: type of bit-field ‘ordered’ is a GCC extension [-Wpedantic]
          uint8_t   ordered : 1;
          ^
mongoc/mongoc-write-command-private.h:47:10: warning: type of bit-field ‘multi’ is a GCC extension [-Wpedantic]
          uint8_t   multi : 1;
          ^
mongoc/mongoc-write-command-private.h:50:10: warning: type of bit-field ‘ordered’ is a GCC extension [-Wpedantic]
          uint8_t   ordered : 1;
          ^
mongoc/mongoc-write-command-private.h:51:10: warning: type of bit-field ‘allow_bulk_op_insert’ is a GCC extension [-Wpedantic]
          uint8_t   allow_bulk_op_insert : 1;
          ^
mongoc/mongoc-write-command-private.h:54:10: warning: type of bit-field ‘ordered’ is a GCC extension [-Wpedantic]
          uint8_t   ordered : 1;
          ^
gcc -std=gnu99 -I/usr/share/R/include -DNDEBUG -I. -Iyajl -Ibson -Imongoc -include apple.h -include mlfeatures.h -I/opt/csw/include -DBSON_COMPILATION -DMONGOC_COMPILATION      -fpic  -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -g  -O3 -Wall -pipe -pedantic -std=gnu99 -c mongoc/mongoc-gridfs.c -o mongoc/mongoc-gridfs.o
mongoc/mongoc-gridfs.c: In function ‘_mongoc_gridfs_new’:
mongoc/mongoc-gridfs.c:110:16: warning: variable ‘prefix_len’ set but not used [-Wunused-but-set-variable]
       uint32_t prefix_len;
                ^
gcc -std=gnu99 -I/usr/share/R/include -DNDEBUG -I. -Iyajl -Ibson -Imongoc -include apple.h -include mlfeatures.h -I/opt/csw/include -DBSON_COMPILATION -DMONGOC_COMPILATION      -fpic  -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -g  -O3 -Wall -pipe -pedantic -std=gnu99 -c mongoc/mongoc-write-command.c -o mongoc/mongoc-write-command.o
In file included from mongoc/mongoc-write-command.c:21:0:
mongoc/mongoc-write-command-private.h:46:10: warning: type of bit-field ‘ordered’ is a GCC extension [-Wpedantic]
          uint8_t   ordered : 1;
          ^
mongoc/mongoc-write-command-private.h:47:10: warning: type of bit-field ‘multi’ is a GCC extension [-Wpedantic]
          uint8_t   multi : 1;
          ^
mongoc/mongoc-write-command-private.h:50:10: warning: type of bit-field ‘ordered’ is a GCC extension [-Wpedantic]
          uint8_t   ordered : 1;
          ^
mongoc/mongoc-write-command-private.h:51:10: warning: type of bit-field ‘allow_bulk_op_insert’ is a GCC extension [-Wpedantic]
          uint8_t   allow_bulk_op_insert : 1;
          ^
mongoc/mongoc-write-command-private.h:54:10: warning: type of bit-field ‘ordered’ is a GCC extension [-Wpedantic]
          uint8_t   ordered : 1;
          ^