This is the mail archive of the cygwin mailing list for the Cygwin project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

libtool issue on shared lib


I am trying to adapt socketxx to cygwin
(http://www.linuxhacker.at/socketxx)

In addition to a lot of other problems, I have a puzzling libtool issue


make[2]: Entering directory `/pub/devel/gdcm/socket++-1.12.13_build/socket++'
/bin/sh ../libtool --tag=CXX --mode=link g++ -Wall -g -O2 -version-info 1:2:0 -o libsocket++.la -rpath /usr/local/lib sockstream.lo sockinet.lo sockunix.lo pipestream.lo fork.lo protocol.lo echo.lo smtp.lo ftp.lo sig.lo
libtool: link: warning: undefined symbols not allowed in i686-pc-cygwin shared libraries


but

g++ -Wall -g -O2 -shared -o cygsocket++-0.dll -Wl,--out-implib=libsocket++.dll.a sockstream.o sockinet.o sockunix.o pipestream.o fork.o protocol.o echo.o smtp.o ftp.o sig.o
Creating library file: libsocket++.dll.a


$ cygcheck ./cygsocket++-0.dll
E:\cygwin\pub\devel\gdcm\socket++-1.12.13_build\socket++\cygsocket++-0.dll
  E:\cygwin\bin\cygwin1.dll
[cut]
  E:\cygwin\bin\cyggcc_s-1.dll
  E:\cygwin\bin\cygstdc++-6.dll


So where is the undefined symbol ??



I am already using "autoreconf -f -i" and the libtool seems equivalent to what is working for any other package

adding LT_INIT([dlopen win32-dll shared])
to configure.in had no effect

and the  Makefile.am is very basic
---------------------------------------------
INCLUDES = -I$(top_srcdir) -I$(top_builddir)

lib_LTLIBRARIES = libsocket++.la
libsocket___la_SOURCES = sockstream.cpp sockstream.h \
        sockinet.cpp sockinet.h \
        sockunix.cpp sockunix.h\
        pipestream.cpp pipestream.h \
        fork.cpp fork.h \
        protocol.cpp protocol.h \
        echo.cpp echo.h \
        smtp.cpp smtp.h \
        ftp.cpp ftp.h \
        sig.cpp sig.h

libsocketincludedir=$(includedir)/socket++
libsocketinclude_HEADERS = \
        sockstream.h \
        sockinet.h \
        sockunix.h\
        pipestream.h \
        fork.h \
        protocol.h \
        echo.h \
        smtp.h \
        ftp.h \
        sig.h
libsocket___la_LDFLAGS = -version-info @LIBSOCKET_SO_VERSION@
-------------------------------------------------

Any idea about what I should look for ?

Marco


-- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]