Fedora 26 - compile error with gcc-c++-7.1.1 about heif

[avibrazil]

Solved. Use clang compiler (LLVM) instead of g++.

On Fedora do this as root:

dnf install clang;

Then compile heif like this:

git clone https://github.com/nokiatech/heif.git
cd heif;
CXX=clang++ cmake .;
make

[mabushey]

On Debian/Ubuntu: apt-get install clang cmake

[teknoraver]

Oh c'mon, changing the compiler when the fix is just inserting a small comment in the code?
I've a pull request to fix this, please consider merging.

[Sunting78]

I have the same problem with you. Have you solved this problem now?

[kokokranc]

I'm on windows and compiling from MinGW toolchain, same problem.

Cmake version 3.9.3
MinGW version MinGW-W64-builds-4.3.0

cd /d D:\***\Documents\heif-master\build2\Srcs\jsonlib && "D:\Program Files\mingw-w64\x86_64-7.1.0-posix-seh-rt_v5-rev1\mingw64\bin\g++.exe" -std=c++11 -Wall -Wextra -Werror -Wno-missing-field-initializers -o CMakeFiles\json.dir\jsoncpp.cpp.obj -c D:\***\Documents\heif-master\Srcs\jsonlib\jsoncpp.cpp D:\***\Documents\heif-master\Srcs\jsonlib\jsoncpp.cpp: In member function 'bool Json::OurReader::readToken(Json::OurReader::Token&)': D:\***\Documents\heif-master\Srcs\jsonlib\jsoncpp.cpp:1444:5: error: this statement may fall through [-Werror=implicit-fallthrough=] if (features_.allowSingleQuotes_) { ^~ D:\***\Documents\heif-master\Srcs\jsonlib\jsoncpp.cpp:1449:3: note: here case '/': ^~~~ cc1plus.exe: all warnings being treated as errors Srcs\jsonlib\CMakeFiles\json.dir\build.make:64: recipe for target 'Srcs/jsonlib/CMakeFiles/json.dir/jsoncpp.cpp.obj' failed mingw32-make[2]: *** [Srcs/jsonlib/CMakeFiles/json.dir/jsoncpp.cpp.obj] Error 1

[nokiatech]

Jsonlib no longer part of code base as of v3.0.