RE: Q: apache: logresolve.c: undefined reference to `h_errno'

RE: Q: apache: logresolve.c: undefined reference to `h_errno'

[Josifovski Ljubomir-BLJ01Z]

> The correct thing to do is to #include <netdb.h> in your source code. 

I tried #including <netdb.h> at the top of logresolve.c, but I still get the
error. 
(maybe I should include it somewhere else, or #define something?)

> The next best thing is to change
> 
> extern int h_errno;
> to
> extern __declspec(dllimport) int h_errno;

This works.

Many thanks,

-- 
Ljubomir Josifovski
mailto:L.Josifovski@dcs.shef.ac.uk,blj01z@email.mot.com
http://www.dcs.shef.ac.uk/~ljupco

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Re: Q: apache: logresolve.c: undefined reference to `h_errno'

[Charles S. Wilson]

The correct thing to do is to #include <netdb.h> in your source code. 
The next best thing is to change

extern int h_errno;
to
extern __declspec(dllimport) int h_errno;

within your source code.

--Chuck

Patrick Doyle wrote:
> 
> Not knowing any better, when I tried to compile wget, I just changed the
> reference to `h_errno' from:
> 
> extern int h_errno;
> 
> to
> 
> /* extern  */ int h_errno;
> 
> in one place (ftp.c) and wget compiled fine.  Having just read
> http://www.cygwin.com/ml/cygwin/2000-01/msg00452.html , I expect that was
> not the most correct thing to do, but it did allow me to compile and use
> wget.  Perhaps you could do the same with apache.
> 
> It's a hack, but it might be just enough to allow you to get your simple
> files-via-http service running.
>

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Re: Q: apache: logresolve.c: undefined reference to `h_errno'

[Patrick Doyle]

Not knowing any better, when I tried to compile wget, I just changed the
reference to `h_errno' from:

extern int h_errno;

to

/* extern  */ int h_errno;

in one place (ftp.c) and wget compiled fine.  Having just read
http://www.cygwin.com/ml/cygwin/2000-01/msg00452.html , I expect that was
not the most correct thing to do, but it did allow me to compile and use
wget.  Perhaps you could do the same with apache.

It's a hack, but it might be just enough to allow you to get your simple
files-via-http service running.

--wpd

Josifovski Ljubomir-BLJ01Z wrote:
> 
> I'm trying to compile apache from
> 
> http://www.student.uni-koeln.de/cygwin/Distribution/Source/apache/
> 
> and I get an error:
> 
> ===> src/support
> make[2]: Entering directory `/home/sysop/apache_1.3.9-cygwin/src/support'
> gcc  -DUSE_HSREGEX -DUSE_EXPAT -I../lib/expat-lite `../apaci` logresolve.o
> -o logresolve   -L../os/cygwin -L../ap -lap -los  -lcrypt -lcrypt
> logresolve.o(.text+0x13a):logresolve.c: undefined reference to `h_errno'
> logresolve.o(.text+0x14d):logresolve.c: undefined reference to `h_errno'
> logresolve.o(.text+0x167):logresolve.c: undefined reference to `h_errno'
> collect2: ld returned 1 exit status
> make[2]: *** [logresolve] Error 1
> make[2]: Leaving directory `/home/sysop/apache_1.3.9-cygwin/src/support'
> <=== src/support
> make[1]: Leaving directory `/home/sysop/apache_1.3.9-cygwin'
> <=== src
> 
> I found a message ragarding compiling wget and link error involving h_errno
> at
> 
> http://www.cygwin.com/ml/cygwin/2000-01/msg00452.html
>

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Q: apache: logresolve.c: undefined reference to `h_errno'

[Josifovski Ljubomir-BLJ01Z]

I'm trying to compile apache from

http://www.student.uni-koeln.de/cygwin/Distribution/Source/apache/

and I get an error:

===> src/support
make[2]: Entering directory `/home/sysop/apache_1.3.9-cygwin/src/support'
gcc  -DUSE_HSREGEX -DUSE_EXPAT -I../lib/expat-lite `../apaci` logresolve.o
-o logresolve   -L../os/cygwin -L../ap -lap -los  -lcrypt -lcrypt
logresolve.o(.text+0x13a):logresolve.c: undefined reference to `h_errno'
logresolve.o(.text+0x14d):logresolve.c: undefined reference to `h_errno'
logresolve.o(.text+0x167):logresolve.c: undefined reference to `h_errno'
collect2: ld returned 1 exit status
make[2]: *** [logresolve] Error 1
make[2]: Leaving directory `/home/sysop/apache_1.3.9-cygwin/src/support'
<=== src/support
make[1]: Leaving directory `/home/sysop/apache_1.3.9-cygwin'
<=== src

I found a message ragarding compiling wget and link error involving h_errno
at

http://www.cygwin.com/ml/cygwin/2000-01/msg00452.html

Mine libcygwin.a has:

sysop@ZUK02-0544 ~/apache_1.3.9-cygwin
$ nm /usr/lib/libcygwin.a |grep h_errno
00000000 I __imp__h_errno

and the lines in netdb.h are

#ifdef  __INSIDE_CYGWIN_NET__
extern int h_errno;
#else
extern __declspec(dllimport) int h_errno;
#endif

I see that

sysop@ZUK02-0544 ~/apache_1.3.9-cygwin
$ nm src/support/logresolve.o | grep h_errno
         U _h_errno

and 

$ nm /usr/lib/libcygwin.a | grep h_errno
00000000 I __imp__h_errno

Or better, does anyone know of a simple and easy httpd (I don't need
anything but simple files-via-http service - no cgi or php or anything
else)?

thanks in advance,
Ljubomir

-- 
Ljubomir Josifovski
mailto:L.Josifovski@dcs.shef.ac.uk,blj01z@email.mot.com
http://www.dcs.shef.ac.uk/~ljupco


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