http://cygwin.com/acronyms/#PPIOSPE. I've redirected your query to the
appropriate list and set the Reply-To: header -- please make sure your
mailer honors it.
Ugh, top-posting... Reformatted.
On Mon, 12 May 2008, Jesús Oliva wrote:
Hi,
I have a pure Win32 console program which I am trying to compile under
Cygwin. I am
including the following libraries
-lws2_32 -lrpcrt4 -luuid -lrpcns4 -lpsapi -liphlpapi
and am using a host of Win32 calls for threading, sockets, semaphores,
etc.
I know that I need to compile with the option -mno-cygwin to be able to
run
the program on
a computer without the cygwin.dll, which is what I want, however, when I
add
this option I
get the following linker error:
undefined reference to `___getreent'
This is my linker statement:
g++ -g -O2 -D_GNU_SOURCE -D_REENTRANT -D_THREAD_SAFE -D WIN32 -D CYGWIN -D
__CYGWIN__
CoreMain.o CoreLibrary.a -Wl,--rpath -Wl,/usr/local/lib -o CoreTest
-mno-cygwin -lws2_32
-lrpcrt4 -luuid -lrpcns4 -lpsapi -liphlpapi
I have found that I get this for every line in the code where I use either
getchar()
or
printf(...\b...); fflush(stdout);
and when I comment out these the error goes away, but jumps to the next
line
or file where
I use this or something like it. I must admit that I have not tried
removing
all hundreds
of them, just the first 15 or so...
I have tried to include all sorts of libraries instead of the cygwin.dll
and
actually,
when I include the -lpthread it compiles, but then the program crashes
when
I start using
threads and semaphores...
As I mentioned above, when I do not state -mno-cygwin, everything works
fine
and the
program runs perfectly! But then it needs the cygwin.dll, of course...
I found a few references to this on the web, mostly promoting the compiler
directive
-D __CYGWIN__
which I have tried, but to no avail...
Below is a snippet of output from the linker. I hope this will make sense
to
somebody out
there, who can tell me what to include in my linker statement...
Thank you very much in advance!
Best regards,
Thor List
[Linker output snipped]
Thor,
You have to use -mno-cygwin for the whole compilation, not just for the
link line, otherwise the wrong headers get picked up. IOW, don't add
-mno-cygwin to LDFLAGS -- instead, redefine CXX='g++ -mno-cygwin' (and
CC='gcc -mno-cygwin') and rebuild everything from scratch.
Igor
I have a similar problem that the one related below, but when I try to
above
compile everything with the -mno-cygwin option, I get many errors such
as:
'error: u_int32_t has not been declared
I suppose that, if I don´t want to use cygwin.dll, I should add some
libraries to the compiling and linking process, but I don´t know wich.
Could you help me??
Thank you very much,
Jesús Oliva
You may need headers that define the above types, or you may be unable to
compile the code with -mno-cygwin if those headers are not present in
MinGW.
Remember, -mno-cygwin means no Cygwin -- you're using MinGW, and will
only be able to compile programs that MinGW has enough support for.
Further questions about this should really be directed to a MinGW list...
Igor
--
http://cs.nyu.edu/~pechtcha/
|\ _,,,---,,_[EMAIL PROTECTED] | [EMAIL PROTECTED]
ZZZzz /,`.-'`'-. ;-;;,_Igor Peshansky, Ph.D. (name changed!)
|,4- ) )-,_. ,\ ( `'-' old name: Igor Pechtchanski
'---''(_/--' `-'\_) fL a.k.a JaguaR-R-R-r-r-r-.-.-. Meow!
That which is hateful to you, do not do to your neighbor. That is the whole
Torah; the rest is commentary. Go and study it. -- Rabbi Hillel
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
