Ubuntu 16.04安装Omnet++报错：无法找到osgEarth

Hey there, let's work through this issue where your ./configure script can't find osgEarth 2.7 or later. Here are some actionable steps to fix this:

1. Verify Your osgEarth Version #

First, make sure you actually have a compatible version installed:

• Run the version check tool if available:

  osgEarthVersion
  

• Or check the version header directly (adjust the path if you installed to a non-default location):

  grep OSGEARTH_VERSION /usr/include/osgEarth/Version.h
  

If the version is older than 2.7, you'll need to upgrade to a supported release of osgEarth.

2. Ensure osgEarth is in System Search Paths #

If osgEarth is installed in a non-standard directory (like /usr/local or a custom path), the configure script might not locate it automatically. Try these fixes:

• Set the pkg-config path (this helps configure find library metadata):

  export PKG_CONFIG_PATH=/path/to/osgEarth/lib/pkgconfig:$PKG_CONFIG_PATH
  ./configure
  

  Replace /path/to/osgEarth with your actual installation directory.
• Explicitly specify include and library paths in the configure command:

  ./configure CFLAGS="-I/path/to/osgEarth/include" LIBS="-L/path/to/osgEarth/lib -losgEarth -losgEarthUtil"
  

3. Diagnose with config.log Details #

Looking at your config.log, the test compilation for osgEarth failed. Check for these common issues in the log:

• Missing header files: Look for lines like fatal error: osgEarth/Version.h: No such file or directory – this means the include path isn't set correctly.
• Linker errors: Lines like undefined reference to osgEarth::... indicate the linker can't find the osgEarth libraries, so the library path is wrong.

4. Disable osgEarth (If You Don't Need It) #

If you don't require osgEarth functionality for your build, follow the error message's suggestion:

• Open the configure.user file and add or modify this line:

  WITH_OSGEARTH=no
  

• Then re-run ./configure to skip the osgEarth check.

内容的提问来源于stack exchange，提问作者PARTH SURESH