libtool: object name conflicts in archive (NETCDF + MinGW)

Question

I am going to use NetCDF in windows and I think it has to be compiled with MinGW since my main program and all other libraries are compiled with MinGW already.

But when I used MinGW (gcc version 4.6.2). I got some error messages:

    Making all in liblib
    make[2]: Entering directory `/c/Users/ylylyl/Documents/CB/NETCDF/netcdf-4.2.1.1/liblib'
    /bin/sh ../libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I..  -I../include  -DDLL_NETCDF   -DDLL_EXPORT   -g -O2 -MT libnetcdf_la-stub.lo -MD -MP -MF .deps/libnetcdf_la-stub.Tpo -c -o libnetcdf_la-stub.lo `test -f 'stub.c' ||echo './'`stub.c
    libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I.. -I../include -DDLL_NETCDF -DDLL_EXPORT -g -O2 -MT libnetcdf_la-stub.lo -MD -MP -MF .deps/libnetcdf_la-stub.Tpo -c stub.c  -DDLL_EXPORT -DPIC -o .libs/libnetcdf_la-stub.o
    libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I.. -I../include -DDLL_NETCDF -DDLL_EXPORT -g -O2 -MT libnetcdf_la-stub.lo -MD -MP -MF .deps/libnetcdf_la-stub.Tpo -c stub.c -o libnetcdf_la-stub.o >/dev/null 2>&1
    mv -f .deps/libnetcdf_la-stub.Tpo .deps/libnetcdf_la-stub.Plo
    /bin/sh ../libtool --tag=CC   --mode=link gcc  -g -O2 -version-info 9:0:2 -no-undefined -Wl,--output-def,netcdfdll.def  -o libnetcdf.la -rpath /usr/local/lib libnetcdf_la-stub.lo ../libdispatch/libnetcdf2.la ../libdispatch/libdispatch.la ../libsrc/libnetcdf3.la    -lm
    libtool: link: gcc -shared  .libs/libnetcdf_la-stub.o  -Wl,--whole-archive ../libdispatch/.libs/libnetcdf2.a ../libdispatch/.libs/libdispatch.a ../libsrc/.libs/libnetcdf3.a -Wl,--no-whole-archive   -O2 -Wl,--output-def -Wl,netcdfdll.def   -o .libs/libnetcdf-7.dll -Wl,--enable-auto-image-base -Xlinker --out-implib -Xlinker .libs/libnetcdf.dll.a
    Creating library file: .libs/libnetcdf.dll.a
    libtool: link: (cd .libs/libnetcdf.lax/libnetcdf2.a && ar x "/c/Users/ylylyl/Documents/CB/NETCDF/netcdf-4.2.1.1/liblib/../libdispatch/.libs/libnetcdf2.a")
    libtool: link: object name conflicts in archive: .libs/libnetcdf.lax/libnetcdf2.a//c/Users/ylylyl/Documents/CB/NETCDF/netcdf-4.2.1.1/liblib/../libdispatch/.libs/libnetcdf2.a
    make[2]: *** [libnetcdf.la] Error 1
    make[2]: Leaving directory `/c/Users/ylylyl/Documents/CB/NETCDF/netcdf-4.2.1.1/liblib'
    make[1]: *** [all-recursive] Error 1
    make[1]: Leaving directory `/c/Users/ylylyl/Documents/CB/NETCDF/netcdf-4.2.1.1'
    make: *** [all] Error 2

I have no idea of what is the problem within libtool. But I do think ar command needs more inputs. And maybe there are something wrong when generating the libtool script?

I searched online but I can't find any MinGW version NetCDF with fortran and f90 interface. Please give me a hand. Many thanks.

Answer 1

The problem is that "Windows' path is listed before msys' bin in PATH. So, unix utilities which have same name with Windows' builtin utilities won't get called. Windows' ones get called instead." (http://forum.world.st/The-old-quot-object-name-conflicts-in-archive-quot-problem-on-Windows-MSYS-MinGW-td3439428.html). Putting path to msys binaries in the beginning of PATH should help.