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From: "mauro zallocco" <mzallocc AT nc DOT rr DOT com>
To: <cygwin AT cygwin DOT com>
Subject: Java hello world link error
Date: Sat, 20 Dec 2003 23:04:33 -0500
Message-ID: <000001c3c777$8b6084e0$6664a8c0@cipheroptics.com>
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Folks,

I installed gcc-java on Windows XP, and am attempting to compile:

class Test {
  public static void main(String argv[]) {
      System.out.println("Hello World");
  }
}

with the following command:
g++ Test.java

This produces a gazillion link errors, a sample follows:
/cygdrive/c/DOCUME~1/mzallocc/LOCALS~1/Temp/ccywNFar.o(.text+0x2d):Test.java
: undefined reference to `__Jv_InitClass'
/cygdrive/c/DOCUME~1/mzallocc/LOCALS~1/Temp/ccywNFar.o(.text+0x37):Test.java
: undefined reference to `java::lang::System::out'
/cygdrive/c/DOCUME~1/mzallocc/LOCALS~1/Temp/ccywNFar.o(.text+0x5f):Test.java
: undefined reference to `java::lang::Object::Object[in-charge]()'
/cygdrive/c/DOCUME~1/mzallocc/LOCALS~1/Temp/ccywNFar.o(.text+0xc8):Test.java
: undefined reference to `__Jv_RegisterClass'

Poking around I managed the following:
$ gcc -I /usr/include/java/util/jar Test.java
/usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/../../../libcygwin.a(libcmain.o)(.text
+0x7
c): undefined reference to `_WinMain AT 16'
collect2: ld returned 1 exit status

What do I need to include to resolve _WinMain AT 16 ?

Mauro


/Mauro


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