[geos-devel] MingW build (was: autotools problems)

[strk at refractions.net]

Ok, thanks to Mark we fixed the MingW issue by:

	- Uncommenting AC_LIBTOOL_WIN32_DLL in configure.in

	- Adding -no-undefined to LDFLAGS for both C++ and C lib

Additionally we added acsite.m4 to the distribution, so future
users will be able to regenerate build scripts.

This calls for 2.2.1 - see 2.2.1 mail (coming next).

--strk;

On Fri, Dec 02, 2005 at 02:10:03PM +0100, strk at refractions.net wrote:
> Guys, I need some help with the Makefile.am
> under source/capi (the new CAPI thing).
> 
> I'm really unsure of wheter it is constructed
> correctly. As a matter of fact I've hade report
> of failures for MingW builds.
> 
> The point is building a library and a program.
> The library is libgeos_c.
> The program is geostest.
> libgeos_c depends (links against) libgeos.
> geostest depends (links against) libgeos_c.
> 
> Current Makefile.am is as follows:
> 
> ----8<--------------------------------------------------
> 
> prefix=@prefix@
> top_srcdir=@top_srcdir@
> GEOS_CAPI_VERSION="@VERSION at -CAPI-@CAPI_VERSION@"
> 
> noinst_PROGRAMS = geostest
> 
> geostest_SOURCES = geostest.c
> #geostest_LDADD = libgeos_c.la
> geostest_LDADD = $(top_builddir)/source/geom/libgeos.la libgeos_c.la
> geostest_INCLUDES = -I.
> 
> capidir = $(includedir)
> 
> nodist_capi_HEADERS = \
>         geos_c.h
> 
> lib_LTLIBRARIES = libgeos_c.la
> 
> LIBS = $(top_builddir)/source/geom/libgeos.la
> 
> DIR_SOURCES = \
>         geos_c.cpp
> 
> libgeos_c_la_SOURCES = $(DIR_SOURCES)
> libgeos_c_la_CPPFLAGS = -DGEOS_CAPI_VERSION='$(GEOS_CAPI_VERSION)'
> 
> 
> libgeos_c_la_LDFLAGS = -version-info @CAPI_INTERFACE_CURRENT@:@CAPI_INTERFACE_REVISION@:@CAPI_INTERFACE_AGE@
> 
> dist-local:
>         cp -p $(DIST_SOURCES) Makefile.am Makefile.in $(distdir)
> 
> ----8<--------------------------------------------------
> 
> MingW build report show a WARNING at libgeos_c.la build:
> 
> *** Warning: This system can not link to static lib archive ../../source/geom/libgeos.la.
> *** I have the capability to make that library automatically link in when
> *** you link to this library.  But I can only do this if you have a
> *** shared version of the library, which you do not appear to have.
> libtool: link: warning: undefined symbols not allowed in i686-pc-mingw32 shared libraries
> 
> And a lots of "undefined reference" error at geostest build, where
> undefined symbols seems the ones in libstdc++.
> 
> Any successful MingW builder here, or  does the Makefile.am looks fine ?
> 
> 
> --strk;
> 
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