cross-building mingw32 libtool-2.2.6a uses /usr/bin/gfortan -print-search-dirs

[Jan Nieuwenhuizen]

Hi,

When creating a cross-built libtool-2.2.6a for mingw32, the
sys_lib_search_path_spec, as set by this snippet

    mingw* | cegcc*)
      # MinGW DLLs use traditional 'lib' prefix
      soname_spec='${libname}`echo ${release} | $SED -e 
's/[[.]]/-/g'`${versuffix}${shared_ext}'
      sys_lib_search_path_spec=`$CC -print-search-dirs | $SED '/^libraries:/!d; 
s///; s,=/,/,g'`

instead of using i686-mingw32-gcc, uses /usr/bin/gfortran for CC,
if that program happens to be installed.  This results in a
broken sys_lib_search_path_spec without the cross-compiler's
lib dirs, and also includes /usr/lib; something you do not
want when cross-compiling.

See the attached bash -x configure log.

As a workaround, one can populate the cross config.cache with

    ac_cv_prog_F77=no
    ac_cv_prog_FC=no
    ac_cv_prog_GCJ=no

Greetings,
Jan.


Result libtool script with gfortran installed

    # Compile-time system search path for libraries.
    sys_lib_search_path_spec=" =./x86_64-linux-gnu/4.3.3/ ./../lib/ 
/usr/lib/gcc/x86_64-linux-gnu/4.3.3/ /usr/lib/gcc/x86_64-linux-gnu/4.3.3/ 
/usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../../x86_64-linux-gnu/lib/x86_64-linux-gnu/4.3.3/
 /usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../../x86_64-linux-gnu/lib/../lib/ 
/usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../x86_64-linux-gnu/4.3.3/ 
/usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../../lib/ 
/lib/x86_64-linux-gnu/4.3.3/ /lib/../lib/ /usr/lib/x86_64-linux-gnu/4.3.3/ 
/usr/lib/../lib/ ./ 
/usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../../x86_64-linux-gnu/lib/ 
/usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../ /lib/ /usr/lib/"

expected result

   sys_lib_search_path_spec=" 
/home/janneke/tmp/gub/target/mingw/root/usr/cross/lib/gcc/i686-mingw32/4.1.1/ 
/home/janneke/tmp/gub/target/mingw/root/usr/lib/gcc/i686-mingw32/4.1.1/ 
/home/janneke/tmp/gub/target/mingw/root/usr/cross/lib/gcc/i686-mingw32/4.1.1/../../../../i686-mingw32/lib/i686-mingw32/4.1.1/
 
/home/janneke/tmp/gub/target/mingw/root/usr/cross/lib/gcc/i686-mingw32/4.1.1/../../../../i686-mingw32/lib/
 /home/janneke/tmp/gub/target/mingw/root/usr/lib/i686-mingw32/4.1.1/ 
/home/janneke/tmp/gub/target/mingw/root/usr/lib/"


-- 
Jan Nieuwenhuizen <address@hidden> | GNU LilyPond - The music typesetter
http://www.xs4all.nl/~jantien       | http://www.lilypond.org

libtool-gfortran.log.gz
Description: GNU Zip compressed data