However, don't use ssglLineWidth for UI drawing operations.
These only draw horizontal or vertical lines that don't need to
be antialiased, and thus don't require the workaround. In fact
the workaround would make them thicker than needed.
fltkmain accidentally used optind instead of optndx. optind is
defined as an extern int in glibc but not on BSD systems.
This also broke passing a filename on command line.
Writing to NULL is undefined behavior and it is legal for the
compiler to simply remove it; clang will do so. abort()
or __builtin_trap() would produce the desirable result.
abort() is used as it is more portable.
Since SolveSpace's config.h is not exported, we cannot depend
on HAVE_C99_INTEGER_TYPES or similar variables. It's simplest
to just define it from scratch in the same way as MSVC does.
The GUI application and library share some object files but don't
enable object renaming resulting in the second compilation overwriting
the results of the first compilation. This can be fixed by setting
explicit preprocessor flags for one compilation. The actual problem,
however, is that recursive make is used in an inappropriate way; two
Makefiles shouldn't refer to the same source files. In this case,
libslvs should be under src/ and handled by the same Makefile, in
which case the issue would have been obvious when the Makefile was
written in the first place.
Requested by yugami:
> might I suggest explicitly including libGL as well as libpng.
> One of the previous builders errors needed that explicitly added in
As Peter Stuge pointed out, it works anyway if fltk is built with png
support because solvespace uses the flags returned by fltk-config.
If fltk was built with png support enabled, these include -lpng.
For example forward/backward buttons are present on many mouses
but are not used by solvespace. This oops() caused solvespace to
crash whenever those buttons were (accidentally) pressed.
Ubuntu enables GCC's buffer overflow checks by default. In SAVEDptr
union, the path was declared as 'char', even though MAX_PATH memory
was actually allocated. The buffer overflow check mistakenly thought
that the buffer size was only 1 and aborted the program whenever it
tried to read a path from a file.
"There was some small but annoying bugs with the FLTK port:
-cursor disappear sometimes
-not all the area of the windows (graphic and text windows) is accessible
by the mouse after a re-size
-input widget for editing constraints value are not correctly placed"
Microsoft defines an RGB() macro that at one point was compatible with our
version (returning a packed integer containing 8-bit red, green and blue
channels), but is no longer, and the incompatibility led to an awkward
situation in w32main.cpp where we had to restore Microsoft's form of the
macro in order for the commctrl.h header to compile. By renaming the macro
to RGBi()---analogous to the RGBf() macro we already define---we avoid the
hassle entirely.
The libslvs library and CDemo program can now be built by Autotools. A few
code changes were needed for this: C++ comments in C code had to be
converted, constraint.cpp required some massaging, and fltkutil.cpp needed
a stub for InitHeaps().
whitequark
Jonathan Westhues
Marc Britten
Roland Lutz
Andrew Downing
Petteri Aimonen
Ilya Novoselov
Daniel Richard G