[Octave-bug-tracker] [bug #54112] mkoctfile confused by -fFOO compiler flag

[Sébastien Villemot]

URL:
  <http://savannah.gnu.org/bugs/?54112>

                 Summary: mkoctfile confused by -fFOO compiler flag
                 Project: GNU Octave
            Submitted by: svillemot
            Submitted on: Wed 13 Jun 2018 01:44:36 PM UTC
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.4.0
        Operating System: GNU/Linux

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Details:

With Octave 4.4, when trying to compile to compile two C++ source files into a
single .oct file, and adding a compilation flag starting with "-f", I get an
error:


$ mkoctfile -v -ffloat-
store conndef.cc connectivity.cc                                            
g++ -c -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC
-I/usr/include/octave-4.4.0/octave/.. -I/usr/include/octave-4.4.0/octave 
-pthread -fopenmp -g -O2
-fdebug-prefix-map=/build/octave-b4reVK/octave-4.4.0=.
-fstack-protector-strong -Wformat -Werror=format-security  -ffloat-store
conndef.cc   connectivity.cc -oconnectivity.o
g++: fatal error: cannot specify -o with -c, -S or -E with multiple files
compilation terminated.


The problem does not appear with a compilation flag starting with "-W".

Also, this is a regression compared to Octave 4.2.





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