Hello, I want to compile a f90 code with gfortran. I know this code can be compiled normally with ifort. Compiling a simple, single file fortran, will work, i.e., >> gfortran hiWorld.f90 -o hi However, when I try to compile the serious code, and while the compilation of my real prepares to start I get the following: ... -- Checking whether /usr/bin/gfortran supports Fortran 90 -- Checking whether /usr/bin/gfortran supports Fortran 90 -- no ... The compilation stops then, with error messages like this one: /home/fry/code_gfortran/FBx/trunk/TYPES/element.f90:99.4: SELECT CASE(e%EltType) 1 Error: Unclassifiable statement at (1) Is there a way to force gfortran to support f90? Am I missing some flag? Thanks in advance, and Best regards, J. Garicano P.S.1 The flags used are: -fdefault-real-8 -g -ffixed-line-length-none -ffree-line-length-none -ffree-form -fimplicit-none -fbacktrace -I/usr/include -I/usr/local/include -Wall -std=f95 -pedantic P.S. 3 This is the output of >> gfortran -v Using built-in specs. Target: i486-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 4.4.5-8' --with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.4 --enable-shared --enable-multiarch --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.4 --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --enable-targets=all --with-arch-32=i586 --with-tune=generic --enable-checking=release --build=i486-linux-gnu --host=i486-linux-gnu --target=i486-linux-gnu Thread model: posix gcc version 4.4.5 (Debian 4.4.5-8) -- Jesús Garicano Mena Ph.D. candidate Aeronautics and Aerospace Department von Karman Institute for Fluid Dynamics Chaussée de Waterloo, 72, Rhode-St-Genèse 1640, Belgium E-mail: jesus.garicano.mena@xxxxxxxxx Phone: +3223599611 Fax: +3223599600