Hi, while this is not directly related to gfortran on Cygwin, this article might help you appreciate the issues involved: https://software.intel.com/en-us/node/535307
Are you bound to common blocks? If not, you may get better results when you put the data in a module. Regards, Arjen 2015-06-24 6:30 GMT+02:00 Satish Balay <ba...@fastmail.fm>: > Hi Cygwin, > > I'm debuging an issue with dlls with cygwin gnu compilers - and have > narrowed down the issue to the attached test case [script]. > > Could you guide me to correct usage of 'fortran common block' with dlls? > > [In this example - using fortran 'common block' via static library > works. However the same code using a .dll fails] > > Thanks, > Satish > > --------- > > balay@ps4 ~/junk > $ ./cb_test.sh > + cat > + cat > + rm -f '*.o' '*.dll' '*.a' '*.exe' > + gfortran -c cb_func.f cb_main.f > + ar cr libcb_static.a cb_func.o > + gfortran cb_main.o -L. -lcb_static -o cb_main_static > + gfortran -shared -o libcb_dynamic.dll cb_func.o > + gfortran cb_main.o -L. -lcb_dynamic -o cb_main_dynamic > + ./cb_main_static > GOOD COMMON BLOCK > + ./cb_main_dynamic > BAD COMMON BLOCK > > > balay@ps4 ~/junk > $ uname -a > CYGWIN_NT-6.1 ps4 2.0.4(0.287/5/3) 2015-06-09 12:22 x86_64 Cygwin > > balay@ps4 ~/junk > $ gfortran --version > GNU Fortran (GCC) 4.9.2 > -- > Problem reports: http://cygwin.com/problems.html > FAQ: http://cygwin.com/faq/ > Documentation: http://cygwin.com/docs.html > Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
