Bug 916822

Created attachment 704050 [details]
Fixes the configure script in the ocaml-mysql source code.

Description of problem: Programs that use the libraries in the ocaml-mysql package in F18 do not compile.


Version-Release number of selected component (if applicable): ocaml-mysql-1.1.1-1.fc18.x86_64 


How reproducible: Attempt to compile any OCaml program that uses objects in the Mysql module, get a compile-time error.


Steps to Reproduce:
1. Use yum to install the ocaml-mysql package.

2. Create a text file called mysqltest.ml consisting of the following code:

let dbh = Mysql.quick_connect ~host:"localhost" ~database:"test"
          ~user:"some_user" ~password:"my_password" ();;
Mysql.disconnect dbh;;
 
3. Attempt to compile the program:

ocamlopt -I /usr/lib64/ocaml/mysql -I /usr/lib64/mysql -o mysqltest \
mysql.cmxa mysqltest.ml

  
Actual results: The program fails to compile, showing the following errors:

/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `stmt_finalize':
(.text+0x23): undefined reference to `mysql_stmt_close'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `conn_finalize':
(.text+0xce): undefined reference to `mysql_close'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_connect':
(.text+0x2e4): undefined reference to `mysql_init'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_connect':
(.text+0x356): undefined reference to `mysql_options'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_connect':
(.text+0x40e): undefined reference to `mysql_real_connect'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_connect':
(.text+0x4c4): undefined reference to `mysql_options'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_connect':
(.text+0x4e9): undefined reference to `mysql_options'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_connect':
(.text+0x511): undefined reference to `mysql_options'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_connect':
(.text+0x545): undefined reference to `mysql_options'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_connect':
(.text+0x575): undefined reference to `mysql_options'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o):(.text+0x5a5): more undefined references to `mysql_options' follow
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_connect':
(.text+0x795): undefined reference to `mysql_error'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_change_user':
(.text+0x819): undefined reference to `mysql_change_user'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_change_user':
(.text+0x87b): undefined reference to `mysql_error'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_list_dbs':
(.text+0x95f): undefined reference to `mysql_list_dbs'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_list_dbs':
(.text+0x980): undefined reference to `mysql_num_rows'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_list_dbs':
(.text+0x9c0): undefined reference to `mysql_fetch_row'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_list_dbs':
(.text+0x9cd): undefined reference to `mysql_free_result'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_list_dbs':
(.text+0xa94): undefined reference to `mysql_free_result'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_select_db':
(.text+0xb59): undefined reference to `mysql_select_db'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_select_db':
(.text+0xbb1): undefined reference to `mysql_error'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_disconnect':
(.text+0xc33): undefined reference to `mysql_close'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_ping':
(.text+0xcf3): undefined reference to `mysql_ping'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_ping':
(.text+0xd3a): undefined reference to `mysql_error'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_exec':
(.text+0xe1e): undefined reference to `mysql_real_query'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_exec':
(.text+0xe5b): undefined reference to `mysql_store_result'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_exec':
(.text+0xeb4): undefined reference to `mysql_error'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_fetch':
(.text+0xf77): undefined reference to `mysql_num_fields'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_fetch':
(.text+0xf89): undefined reference to `mysql_fetch_row'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_fetch':
(.text+0xf9f): undefined reference to `mysql_fetch_lengths'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_to_row':
(.text+0x10f4): undefined reference to `mysql_num_rows'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_to_row':
(.text+0x1104): undefined reference to `mysql_data_seek'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_status':
(.text+0x118e): undefined reference to `mysql_errno'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_errmsg':
(.text+0x1244): undefined reference to `mysql_error'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_escape':
(.text+0x135d): undefined reference to `mysql_escape_string'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_real_escape':
(.text+0x1497): undefined reference to `mysql_real_escape_string'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_set_charset':
(.text+0x15a9): undefined reference to `mysql_set_character_set'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_set_charset':
(.text+0x1601): undefined reference to `mysql_error'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_size':
(.text+0x166a): undefined reference to `mysql_num_rows'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_affected':
(.text+0x16c3): undefined reference to `mysql_affected_rows'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_insert_id':
(.text+0x1723): undefined reference to `mysql_insert_id'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_fields':
(.text+0x1753): undefined reference to `mysql_num_fields'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_client_info':
(.text+0x17e1): undefined reference to `mysql_get_client_info'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_host_info':
(.text+0x1875): undefined reference to `mysql_get_host_info'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_server_info':
(.text+0x1905): undefined reference to `mysql_get_server_info'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_proto_info':
(.text+0x1929): undefined reference to `mysql_get_proto_info'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_fetch_field':
(.text+0x1bca): undefined reference to `mysql_fetch_field'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_fetch_field_dir':
(.text+0x1d6e): undefined reference to `mysql_fetch_field_direct'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_fetch_fields':
(.text+0x1ee6): undefined reference to `mysql_num_fields'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `db_fetch_fields':
(.text+0x1f14): undefined reference to `mysql_fetch_fields'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_prepare':
(.text+0x20e7): undefined reference to `mysql_stmt_init'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_prepare':
(.text+0x2109): undefined reference to `mysql_stmt_prepare'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_prepare':
(.text+0x218b): undefined reference to `mysql_stmt_error'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_prepare':
(.text+0x2196): undefined reference to `mysql_stmt_close'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_close':
(.text+0x2247): undefined reference to `mysql_stmt_close'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `get_column':
(.text+0x245e): undefined reference to `mysql_stmt_fetch_column'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_execute':
(.text+0x26a4): undefined reference to `mysql_stmt_param_count'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_execute':
(.text+0x275d): undefined reference to `mysql_stmt_bind_param'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_execute':
(.text+0x2775): undefined reference to `mysql_stmt_execute'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_execute':
(.text+0x27d0): undefined reference to `mysql_stmt_field_count'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_execute':
(.text+0x2812): undefined reference to `mysql_stmt_bind_result'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_execute':
(.text+0x285b): undefined reference to `mysql_stmt_param_count'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_execute':
(.text+0x2896): undefined reference to `mysql_stmt_error'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_fetch':
(.text+0x29be): undefined reference to `mysql_stmt_fetch'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_affected':
(.text+0x2b52): undefined reference to `mysql_stmt_affected_rows'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_insert_id':
(.text+0x2be2): undefined reference to `mysql_stmt_insert_id'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_status':
(.text+0x2c72): undefined reference to `mysql_stmt_errno'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `caml_mysql_stmt_result_metadata':
(.text+0x2d57): undefined reference to `mysql_stmt_result_metadata'
/usr/lib64/ocaml/mysql/libmysql_stubs.a(mysql_stubs.o): In function `res_finalize':
(.text+0x5a): undefined reference to `mysql_free_result'
collect2: error: ld returned 1 exit status
File "caml_startup", line 1:
Error: Error during linking


Expected results: The program should compile cleanly with no errors.


Additional info: The problem is that the /usr/lib64/ocaml/stublibs/dllmysql_stubs.so library that comes with the ocaml-mysql-1.1.1-1 package is not linked against the libmysqlclient.so library from the mysql-devel package.

The cause of the problem is that the configure script for building the ocaml-mysql libraries is looking for the static libmysqlclient.a library, which no longer exists in any current Fedora package. Also, on 64-bit systems the configure script does not search /usr/lib64/mysql for libraries.

I created a simple patch (attached as ocaml-mysql.patch) that fixes the problem.
The patch makes two modifications to the configure script:

1. The reference to libmysqlclient.a is replaced with libmysqlclient.so. This
means that the mysql-devel package will be required to build ocaml-mysql. The ocaml-camlp4-devel will also be required for the build.

2. The reference to /sw/lib/mysql is replaced with /usr/lib64/mysql. This should be OK since /sw/lib is never used in Fedora.

The patch can be applied like this in the directory above the ocaml-mysql-1.1.1
source directory:

patch -p0 < ocaml-mysql.patch

After applying the patch then building and installing the package, the problem goes away and the Mysql module can be used in OCaml programs.

Other systems that no longer have a static libmysqlclient.a library or that use /usr/lib64 might need this fix as well. For example, I have confirmed that the same problem affects Fedora 17, which uses the older ocaml-mysql-1.1.0 package.