Package: libmagick++-6.q16-dev Version: 8:6.9.11.24+dfsg-1+b1
This bug is based on testing related to https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=966904 Compiling the following simple test program fails. #include <Magick++.h> #include <assert.h> int main() { assert(1==2); } g++ `pkg-config --cflags ImageMagick++` test.cpp In file included from test.cpp:2: test.cpp: In function ‘int main()’: test.cpp:4:5: error: ‘__assert_fail’ was not declared in this scope; did you mean ‘MagickCore::__assert_fail’? 4 | assert(1==2); | ^~~~~~ In file included from /usr/include/ImageMagick-6/magick/memory_.h:22, from /usr/include/ImageMagick-6/magick/MagickCore.h:125, from /usr/include/ImageMagick-6/Magick++/Include.h:45, from /usr/include/ImageMagick-6/Magick++.h:10, from test.cpp:1: /usr/include/assert.h:69:13: note: ‘MagickCore::__assert_fail’ declared here 69 | extern void __assert_fail (const char *__assertion, const char *__file, | The same code builds fine in buster. The issue is that Magick++/Include.h includes the imagemagick headers inside a namespace, unfortunately the imagemagick headers in turn include the assert.h header which therefore gets included inside the namespace and breaks other code that tries to use functionality from assert.h A possible fix would be to have Include.h include assert.h before opening the namespace. (a number of other standard C headers are already included by Include.h presumablly for this very reason).
