prog_LDADD at the end of the linking command line

[Benoit SIGOURE]

Hello list,
[CC: Akim: that's why trunk doesn't compile on Windows/MinGW]



Here is an excerpt from our Makefile.am:
--------------------------------------------------------------------
# Add boost libraries.
AM_CXXFLAGS += $(BOOST_CPPFLAGS)
AM_LDFLAGS  += $(BOOST_LDFLAGS) $(BOOST_THREAD_LIB)

lib_LTLIBRARIES = libkernel.la
libkernel_la_SOURCES = manythings

noinst_PROGRAMS = uconsole
uconsole_SOURCES = console.cc
uconsole_LDADD = libkernel.la
--------------------------------------------------------------------


--------------------------------------------------------------------

--------------------------------------------------------------------



The generated Makefile looks like this:
--------------------------------------------------------------------
CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
        --mode=link $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) \
        $(LDFLAGS) -o $@
[...]
uconsole$(EXEEXT): $(uconsole_OBJECTS) $(uconsole_DEPENDENCIES)
        @rm -f uconsole$(EXEEXT)
        $(CXXLINK) $(uconsole_OBJECTS) $(uconsole_LDADD) $(LIBS)
--------------------------------------------------------------------

Have we done something wrong?  How can we get this to work?  :)


Thanks.

--
Benoit Sigoure aka Tsuna
EPITA Research and Development Laboratory

In a project where we use both Automake and Libtool, I have a program named `uconsole' which depends on Boost and a libtool library `libkernel.a' built in the same directory (which also depends on Boost). Now the problem is that when linking `uconsole', I get undefined references because of the way `uconsole_LDADD' has been appended to the linking command line: /bin/sh ../libtool --tag=CXX --mode=link mingw32-g++ -mthreads -I/ usr/local/include -g -O2 -pipe -L/usr/local/lib -lboost_thread-mt -o uconsole.exe console.o libkernel.la -lws2_32 -lgdi32 mingw32-g++ -Wno-deprecated -Wall -W -Woverloaded-virtual -Wformat - Wno-uninitialized -Werror -Wcast-align -Wcast-qual -Wwrite-strings - mthreads -IC:/cygwin/usr/local/include -g -O2 -pipe -o uconsole.exe console.o -LC:/cygwin/usr/local/lib -lboost_thread-mt ./.libs/ libkernel.a -lws2_32 -lgdi32 See, libkernel.a comes at the end whereas Boost is listed beforehand. And, as you know, the way the linker works entails that undefined references to Boost found in libkernel.la won't be resolved. Oddly enough, the project builds fine on Linux (gcc3/gcc4), OSX (Intel/PPC) and Windows VC++, but not on Windows with MinGW! And, of course, if I manually run the link command with `libkernel.a' before `-lboost_thread-mt', it links fine.

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