* installing *source* package ‘caTools’ ...
** using staged installation
** libs
using C compiler: ‘Debian clang version 18.1.8 (9)’
using C++ compiler: ‘Debian clang version 18.1.8 (9)’
clang++-18  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-18/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -DSTRICT_R_HEADERS=1  -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c Gif2R.cpp -o Gif2R.o
clang++-18  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-18/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -DSTRICT_R_HEADERS=1  -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c GifTools.cpp -o GifTools.o
GifTools.cpp:544:42: error: unexpected type name 'uchar': expected expression
  544 |   uchar* data = Calloc(nPixel*(nBand+1), uchar);
      |                                          ^
GifTools.cpp:548:3: error: use of undeclared identifier 'Free'; did you mean 'free'?
  548 |   Free(trg); 
      |   ^~~~
      |   free
/usr/bin/../lib/gcc/x86_64-linux-gnu/14/../../../../include/c++/14/stdlib.h:64:12: note: 'free' declared here
   64 | using std::free;
      |            ^
GifTools.cpp:549:3: error: use of undeclared identifier 'Free'; did you mean 'free'?
  549 |   Free(src); 
      |   ^~~~
      |   free
/usr/bin/../lib/gcc/x86_64-linux-gnu/14/../../../../include/c++/14/stdlib.h:64:12: note: 'free' declared here
   64 | using std::free;
      |            ^
GifTools.cpp:623:32: error: expected '(' for function-style cast or type construction
  623 |           p = Calloc(m+n+1,char);
      |                            ~~~~^
GifTools.cpp:667:17: error: use of undeclared identifier 'Free'; did you mean 'free'?
  667 |       if(image) Free(image);
      |                 ^~~~
      |                 free
/usr/bin/../lib/gcc/x86_64-linux-gnu/14/../../../../include/c++/14/stdlib.h:64:12: note: 'free' declared here
   64 | using std::free;
      |            ^
GifTools.cpp:668:36: error: unexpected type name 'uchar': expected expression
  668 |       image = Calloc(Height*Width, uchar);
      |                                    ^
GifTools.cpp:687:18: error: use of undeclared identifier 'Free'; did you mean 'free'?
  687 |         if(cube) Free(cube);
      |                  ^~~~
      |                  free
/usr/bin/../lib/gcc/x86_64-linux-gnu/14/../../../../include/c++/14/stdlib.h:64:12: note: 'free' declared here
   64 | using std::free;
      |            ^
7 errors generated.
make: *** [/home/hornik/tmp/R-d-clang-18/etc/Makeconf:202: GifTools.o] Error 1
ERROR: compilation failed for package ‘caTools’
* removing ‘/srv/hornik/tmp/CRAN_pretest/caTools.Rcheck/caTools’