Problem compiling simple Ada program

Gerrit P. Haase
Wed Jun 29 23:02:00 GMT 2005

Michael Swanson wrote:

> I am trying to compile and link a simple Ada program on Cygwin.  The 
> code for this looks like:
> Hello.adb:
> with Text_IO;
> Procedure Hello is
> begin
>     Text_IO.Put_Line("Hello");
> end;
> This compiles fine, but when I try to link the hello.o file, I get this 
> error:
> hello.o:hello.adb:(.text+0x18): undefined reference to 
> '_ada__text_io__put_line__2'
> /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../libcygwin.a(libcmain.o):: 
> undefined reference to '_WinMain@16'
> collect2: ld returned 1 exit status
> This looks like I don't have the right libraries for Ada, but I have 
> installed the entire Devel and Lib group in Cygwin.  Is there a simple 
> solution to this?  Thanks ahead of time for any help you can give me.

Works for me(tm).

$ gnatmake HelloAda
gcc -c HelloAda.adb
gnatbind -x HelloAda.ali
gnatlink HelloAda.ali

$ ./HelloAda

What are the commands you use?

Please post the outoput of `cygcheck -svr` *as attachment* to the list.


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