When you use gcc to build *your* libraries, *you* must compile
with -fPIC.
I already do that. The problem is with libgfortran.* not with my
libraries!
Now you tell me. Have a look at the gcc build log to see if it really
did compile some of the libgfortran sources without -fPIC.
Forgive me again, which is the file I should look for?
I am looking in gcc-4.1.1/objdir and this is all I can find:
x86_64-unknown-linux-gnu/libgfortran/libtool:140:pic_flag=" -fPIC -DPIC"
x86_64-unknown-linux-gnu/libgfortran/config.cache:
259:ac_cv_prog_cc_pic=${ac_cv_prog_cc_pic=' -fPIC -DPIC'}
x86_64-unknown-linux-gnu/libgfortran/config.log:175:ltconfig:
687:checking that /home/lpesce/GCC/gcc-4.1.1/objdir/./gcc/xgcc PIC
flag -fPIC -DPIC works.
x86_64-unknown-linux-gnu/libgfortran/config.log:176:ltconfig:697: /
home/lpesce/GCC/gcc-4.1.1/objdir/./gcc/xgcc -B/home/lpesce/GCC/
gcc-4.1.1/objdir/./gcc/ -B/usr/local/x86_64-unknown-linux-gnu/bin/ -B/
usr/local/x86_64-unknown-linux-gnu/lib/ -isystem /usr/local/x86_64-
unknown-linux-gnu/include -isystem /usr/local/x86_64-unknown-linux-
gnu/sys-include -c -std=gnu99 -O2 -g -O2 -fPIC -DPIC -DPIC
conftest.c 1>&5
x86_64-unknown-linux-gnu/libgfortran/config.log:
5096:ac_cv_prog_cc_pic=' -fPIC -DPIC'
x86_64-unknown-linux-gnu/32/libgfortran/libtool:140:pic_flag=" -fPIC -
DPIC"
x86_64-unknown-linux-gnu/32/libgfortran/config.cache:
259:ac_cv_prog_cc_pic=${ac_cv_prog_cc_pic=' -fPIC -DPIC'}
x86_64-unknown-linux-gnu/32/libgfortran/config.log:175:ltconfig:
687:checking that /home/lpesce/GCC/gcc-4.1.1/objdir/./gcc/xgcc PIC
flag -fPIC -DPIC works.
x86_64-unknown-linux-gnu/32/libgfortran/config.log:176:ltconfig:697: /
home/lpesce/GCC/gcc-4.1.1/objdir/./gcc/xgcc -B/home/lpesce/GCC/
gcc-4.1.1/objdir/./gcc/ -B/usr/local/x86_64-unknown-linux-gnu/bin/ -B/
usr/local/x86_64-unknown-linux-gnu/lib/ -isystem /usr/local/x86_64-
unknown-linux-gnu/include -isystem /usr/local/x86_64-unknown-linux-
gnu/sys-include -m32 -c -std=gnu99 std=gnu99 -O2 -g -O2 -Wunknown-
pragmas -fPIC -DPIC -DPIC conftest.c 1>&5
x86_64-unknown-linux-gnu/32/libgfortran/config.log:
5146:ac_cv_prog_cc_pic=' -fPIC -DPIC'
Java seems to need the object files from libgfortran for the JNI
libraries to work properly
No it doesn't.
Sorry, I did not report all the steps. I am constructing some jni
libraries from
some fortran libraries. I seem to be able to use the fortran
libraries as jni
if and only if the objects from libgfortran are included into the
dynamically
linked jni library.
I hope that it makes more sense now.
Lorenzo
