Time for action—adding libcurl support for OSG

In this section, we will build the osgdb_curl support for compiling and linking OSG binaries from the source code. Without the necessary third-party library libcurl, the osgdb_curl plugin will be ignored in the entire solution and thus will not be generated. In Chapter 2, Compilation and Installation of OpenSceneGraph, we did not introduce the steps to add libcurl to the CMake configuration options. But with the CMake cache files and intermediate files kept in the build directory, we can quickly restart the configuration and rebuild our OSG libraries and development files. The Visual Studio solution file will be automatically updated to include the new osgdb_curl project.

  1. Download the libcurl prebuilt ...

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