CMake compare_files sorted -

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in workflow generated files stored source code support ancient build system (which can't fixed , won't go away because reasons).

so, cmake build uses cmake -e compare_files ... check wsdl gives same *.h , *.cpp files.

kdsoap kdwsdl2cpp generator not producing stable output: order of classes can different invocation invocation.

that breaks check. 1 option sort lines of files before comparison. there portable way that?

you can write cmake script that:

# input variables: file1 , file2. # returns 0 if files same after sort.  cmake_policy(set cmp0007 new)  file(strings ${file1} v1) file(strings ${file2} v2) list(sort v1) list(sort v2)  if(not v1 strequal v2)     message( fatal_error "files '${file1}' ,  '${file2}' not equal." ) endif(not v1 strequal v2)

and use command in add_custom_target:

command ${cmake_command} -dfile1=${cmake_current_source_dir}/foo.cpp -dfile2=${cmake_current_binary_dir}/foo_generated.cpp -p ${cmake_current_source_dir}/sortcomparefiles.cmake

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