bugGNU Octave - Bugs: bug #54112, mkoctfile confused by -fFOO...


bug #54112: mkoctfile confused by -fFOO compiler flag

Submitted by:  S├ębastien Villemot <svillemot>
Submitted on:  Wed 13 Jun 2018 01:44:36 PM UTC  
Category:  None Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Regression
Status:  Duplicate Assigned to:  None
Originator Name:  Open/Closed:  Closed
Release:  4.4.0 Operating System:  GNU/Linux

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Wed 13 Jun 2018 05:04:56 PM UTC, comment #1: 

I think this is another symptom of bug #53099. A change was made in mkoctfile (https://hg.savannah.gnu.org/hgweb/octave/rev/298c6a6bd869) to try to treat unknown options as having optional arguments. But that breaks exactly this kind of use case, where an unknown option is followed by more than one source file.

It would be helpful if mkoctfile supported the '--' feature to separate options from arguments, but that also doesn't work here. The only workaround at this point is to add unknown options before known options, or add an unnecessary '-v' or redundant '-g' option after unknown options.

Mike Miller <mtmiller>
Project Administrator
Wed 13 Jun 2018 01:44:36 PM UTC, original submission:  

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.

S├ębastien Villemot <svillemot>


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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2018-06-13 mtmiller Dependencies- => Depends on bugs #53099
    2018-06-13 mtmiller StatusNone => Duplicate
        Open/ClosedOpen => Closed

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