Re: Compile java files in packages

[jovansonlee cesar <ivanceras@gmail.com>]

Hi Vaijayanthi Mala Suresh,

> if i give gcj -c ./com/test/mytest.java it gives me error.

It should be Capital "-C"
try it with
gcj -C ./com/test/mytest.java

Regards,
ivanceras






On Fri, Jun 5, 2009 at 7:00 PM, Vaijayanthi Mala
Suresh<vaijayanthimalas@gmail.com> wrote:
> Hi ivanceras,
>
> Can you please let me know how to do it for java files within packages.
>
> For eg. I have mytest.java under com.test.
>
> if i give gcj -c ./com/test/mytest.java it gives me error.
>
> Thanks
> Mala
>
> On Fri, Jun 5, 2009 at 4:26 PM, jovansonlee cesar<ivanceras@gmail.com> wrote:
>> Hello Vaijayanthi Mala Suresh,
>>
>>> Can you please let me know i can generate .class files as I have
>>> native methods defined in many of these java files for which
>>> I need to generate the .h files as well.
>>
>> I have not tried generating .h files for these, and I havent even
>> tried linking java together with c++,
>> My main objective is really just to compile prebuilt java applications
>> into native binary using gcj.
>>
>> In generating ".class" files, you could use "gcj -C" in the same way
>> you use "javac" from sun's jdk,
>> "gij" in the same way you could use "java" from sun jdk,
>>
>> Here is an example:
>>       $gcj -C Hello.java
>> that would generate Hello.class
>> in the same you do as(in suns jdk)
>>       $javac Hello.java
>>
>> To run, just use
>>      $gij Hello
>> in the same(suns jdk)
>>     $java Hello
>>
>>
>> Regards,
>> ivanceras
>>
>>
>> On Fri, Jun 5, 2009 at 6:39 PM, Vaijayanthi Mala
>> Suresh<vaijayanthimalas@gmail.com> wrote:
>>> Hi ivanceras,
>>>
>>> Thanks for your help.
>>>
>>> Can you please let me know i can generate .class files as I have
>>> native methods defined in many of these java files for which
>>> I need to generate the .h files as well.
>>>
>>> Thanks
>>> Mala
>>>
>>> On Fri, Jun 5, 2009 at 2:26 PM, jovansonlee cesar<ivanceras@gmail.com> wrote:
>>>> Hi Vaijayanthi Mala Suresh,
>>>>
>>>> Here is my little example:
>>>> http://ivanceras.blogspot.com/2009/04/gcj-vs-jvm-benchmark.html
>>>>
>>>>    $gcj -c -g -O Test.java
>>>>    $gcj --main=Test -o Test.bin Test.o
>>>>    $./Test.bin
>>>>
>>>> and here's how you would compile jar library file(ie. postgresql jdbc
>>>> driver) and link it to your main class
>>>> http://ivanceras.blogspot.com/2009/05/gcc-vs-jvm-benchmark-2.html
>>>>
>>>>  Compiling, Linking and Running in GCJ:
>>>>
>>>>  compile the PostgreSQL jdbc driver
>>>>   $gcj -c -g -O postgresql-8.4dev-700.jdbc3.jar
>>>>   This will create the native binary file "postgresql-8.4dev-700.jdbc3.o"
>>>>
>>>>  compile the Test
>>>>   $gcj -c -g -O TestDb.java
>>>>  This will create the native binay file "TestDb.o"
>>>>
>>>>   do the linking
>>>>  $gcj --main=TestDb -o TestDb.bin postgresql-8.4dev-700.jdbc3.o TestDb.o
>>>>  This will create the executable file: "TestDb.bin"
>>>>
>>>>  execute
>>>>  $./TestDb.bin
>>>>
>>>> Please visit the blog for more details :)
>>>>
>>>> Regards,
>>>> ivanceras
>>>>
>>>> (PS: have to resend, mailist don't seem to accept html text)
>>>>
>>>> On Fri, Jun 5, 2009 at 3:39 PM, Vaijayanthi Mala Suresh
>>>> <vaijayanthimalas@gmail.com> wrote:
>>>>>
>>>>> Hi,
>>>>>
>>>>> I have a several packages of java files which I need to compile with
>>>>> gcj to generate .class and .o files.
>>>>>
>>>>> Can anyone help me please.
>>>>>
>>>>> Thanks
>>>>> Mala
>>>>
>>>
>>
>