Description of Problem: There are two problems to report here: 1) When writing the foo.f originated from foo.F, by means of cpp, the format of the foo.f file gets corrupted since the rigid structure of text in FORTRAN is not kept in the translation. 2) Option fixed-lline-ength-132 is reported as unknown. How Reproducible: It ALWAYS happen Steps to Reproduce: 1. All is done by means of a Makefile that identifies the platform and compilers. Based on that information it will take the steps needed to compile and link 2. 3. Actual Results: Cannot compile because of bad formatting of FORTRAN code. Not even by forcing the size of the tab. Expected Results: It should have created the libraries and the executable. I must add that it works flawlessly in RH6.2 with gcc2.91.66, gcc2.95.2 Additional Information: The report is typically as shown below: /lib/cpp -ftabstop=8 -DX11_exists -I/usr/X11R6/include -P alias.F alias.f f77 -v -c -O -ffixed-line-length-132 alias.f g77 version 2.96 20000731 (Red Hat Linux 7.1 2.96-85) (from FSF-g77 version 0.5.26 20000731 (Red Hat Linux 7.1 2.96-85)) Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-85) /usr/lib/gcc-lib/i386-redhat-linux/2.96/f771 alias.f -quiet -dumpbase alias.f -O -version -ffixed-line-length-132 -o /tmp/ccPtMZtz.s f771: warning: unknown register name: line-length-132 GNU F77 version 2.96 20000731 (Red Hat Linux 7.1 2.96-85) (i386-redhat-linux) compiled by GNU C version 2.96 20000731 (Red Hat Linux 7.1 2.96-85). alias.f: In subroutine `alias': alias.f:46: 10 FORMAT(1X,A) ^ Non-numeric character at (^) in label field [info -f g77 M LEX] alias.f:47: 8701 CONTINUE 1 2 Label at (1) invalid with continuation line indicator at (2) [info -f g77 M LEX]a
You need to use cpp -traditional to preprocess Fortran source. cpp is C Preprocessor, not Fortran preprocessor and is allowed to do with whitespace with some exceptions all it wants. As for -ffixed-line-length-132, see https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=49326