compile error with HAS_GIF := 1 with 64bit Ubuntu 16.04

[gszep]

Hi Francois,

I successfully compiled Cytosim on my machine with the following options in makefile.inc in addition to a few modifications for compatibility with library paths and package names in Ubuntu 16.04

MACHINE := linux-ubuntu
COMPILER := gcc
MODE := D
HAS_MKL := 0
HAS_PNG := 1
HAS_GIF := 0

The repository package names changed when calling apt-get install and the library locations of libpng.a, libz.a and libgif.a from /usr/lib/ to /usr/lib/x86_64-linux-gnu/.

When setting the option HAS_GIF := 1 the following error occurs during compilation. The files and libraries definitely exist. Could this be due to the newer version of libgif-dev? The version I have is 5.1.4.

g++ -ffinite-math-only -ftrapping-math -Wfatal-errors -O0 -g3 -ggdb -Wall -Wno-unknown-pragmas  -c  -DHAS_PNG  -DHAS_GIF  src/gl/saveimage.cc -o build/saveimage.o
src/gl/saveimage.cc: In function ‘int SaveImage::saveColorGIF(FILE*, const GLubyte*, int, int)’:
src/gl/saveimage.cc:627:62: error: ‘MakeMapObject’ was not declared in this scope
     ColorMapObject *colormap = MakeMapObject(colormap_size, 0);
                                                              ^
compilation terminated due to -Wfatal-errors.
src/gl/makefile.inc:38: recipe for target 'build/saveimage.o' failed
make: *** [build/saveimage.o] Error 1

[nedelec]

Thank you for your feedback.
Yes, this is likely due to incompatibility with the newer GIFLIB.
I would suggest that you use PNG, since it replaces all usage of GIF.