Fix Compiler Errors with Clang and GCC 9+ #2
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This PR fixes some issues I encountered when compiling it with newer compiler versions.
this->in front ofoperator(). Apparently this is no longer supported in newer GCC versions#include <string.h>. Apparently this is no longer transitively included somewhereIn addition to these changes, on my computer the following changes were also necessary:
IVW_USE_SIGAR,IVW_MODULE_FONTRENDERING,IVW_TEST_UNIT_TESTS,IVW_TEST_INTEGRATION_TESTSandIVW_TEST_UNIT_TESTS_RUN_ON_BUILDinviwo-output/lib/freetype.so.6and replace it with the one installed on your system, e.g.ln -s /usr/lib64/freetype.so.6 inviwo-output/lib/freetype.so.6. Usefd freetype.so.6 /to find the lib (or usefind, don't know the syntax there).Resubmit because I can't change the branch of an already existing PR.