gcj exception compiling
Philipp Kraus
philipp.kraus@flashpixx.de
Sun Nov 6 20:16:00 GMT 2011
On 2011-11-06 02:28:12 +0100, Yaakov (Cygwin/X) said:
> On Sat, 2011-11-05 at 19:13 +0100, Kraus Philipp wrote:
>> Hello,
>>
>> I try to build a Java class with the gcj under Cygwin. I get this error
>> message:
>>
>> Exception in thread "main" java.lang.NoClassDefFoundError:
>> org.eclipse.jdt.inter
>> nal.compiler.batch.GCCMain
>> at gnu.java.lang.MainThread.run(Unknown Source)
>> Caused by: java.lang.ClassNotFoundException:
>> org.eclipse.jdt.internal.compiler.b
>> atch.GCCMain not found in gnu.gcj.runtime.SystemClassLoader{urls=[],
>> parent=gnu.
>> gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
>> at java.net.URLClassLoader.findClass(Unknown Source)
>> at java.lang.ClassLoader.loadClass(Unknown Source)
>> at java.lang.ClassLoader.loadClass(Unknown Source)
>> at gnu.java.lang.MainThread.run(Unknown Source)
>
> You're missing the ECJ jar. Either download
> ftp://sourceware.org/pub/java/ecj-4.5.jar and install it
> to /usr/share/java/ecj.jar or install java-ecj from Cygwin Ports.
Thanks, but under /usr/sbin/ should be a script like download_ecj.sh
for downloading and installing, but in my Cygwin version the script
does not exists
>
>> The class does not have any main function.
>> On the default gcj installation, it creates this error first:
>>
>> /usr/lib/gcc/i686-pc-cygwin/4.5.3/ecj1.exe: error while loading shared
>> libraries
>> : cyggcj-11.dll: cannot open shared object file: No such file or directory
>>
>> So I install the gcj-11 library, the setup installs gcj-9 on default.
>>
>> How can I create a working installation?
>
> Install libgcj11.
>
> (P.S. Dave Korn: I took the liberty of fixing this on sourceware.)
If I try to compile a java code with "gcj mysource.java" I get the error:
/usr/lib/gcc/i686-pc-cygwin/4.5.3/../../../libcygwin.a(libcmain.o):(.text+0xa9):
undefined reference to `_WinMain@16'
collect2: ld returned 1 exit status
How can I solve the linker problem? (I have installed the newest
version of Cygwin)
Thanks
Phil
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