pano_modify --rotate does not detect values < abs(1) on hugin 2016.0

[MHorn]

If on command line a pano_modify --rotate parameter is given, pano_modify checks for valid values with (pano_modify.cpp, line 745):

if (abs(yaw) + abs(pitch) + abs(roll) > 0.0)

If I'm not mistaken, abs() expects ints and the if-case will therefore return false, if no parameter is > abs(1)

System Information:
Betriebssystem: Linux 4.2.0-23-generic x86_64
Architektur: 64 bit
Freier Speicher: 140012862658896 kiB

Hugin
Version: 2016.0.0.3b4e2790cb90
Ressourcen-Pfad: /usr/share/hugin/xrc/
Datenpfad: /usr/share/hugin/data/
Hugins Kamera- und Objektivdatenbank: /home/xxx/.hugindata/camlens.db
Multi-Threading mittels C++11 std::thread und OpenMP

Bibliotheken
wxWidgets: wxWidgets 3.0
wxWidgets Library (wxGTK port)
Version 3.0.0 (Unicode: wchar_t, debug level: 1),
compiled at Dec 2 2013 15:56:33

Runtime version of toolkit used is 2.24.
Compile-time GTK+ version is 2.24.22.

libpano13: 2.9.19
Boost: 1.54.0
Exiv2: 0.23
SQLite3: 3.8.2
Vigra: 1.10.0
LittleCMS2: 2.5

[MHorn (m-horn)]

I downloaded the source and made changes that appear to work for me (2016 branch):
in pano_modify.cpp:
add
#include <math.h>

and replace abs() with fabs()

Slightly off topic, I asked google how to submit a patch but couldn't find an easy answer within the first few minutes.
For future reference, Is there a short and easy way to generate a patch for this rather easy example?
Thanks

[tmodes (tmodes)]

No, in C++ there are also double variants of abs.
But it is differently used by different compilers.
Fixed in repository.

Nevertheless, who needs such small angles for rotating without a GUI?

[MHorn (m-horn)]

I do ;)

I work with several already stitched full spherical stereoscopic image pairs and use hugin for the final transformation towards the target projection and fov while making small adjustments to all of them.
Using the gui each time was tedious, so I scripted the whole process.

Thanks and cheers.