Xcode - configure: error: no acceptable C compiler found in $PATH
The critical step is actually installing the Xcode command line tools after the download completes and Xcode is installed
After downloading and installing Xcode from the app store, you need to actually install the command line tools it provides.
To do this open Xcode, go to preferences then downloads. There is an "Install" link to add the command line tools.
Once this has been completed, make sure to re-open your terminal window.
Scrapy install: no acceptable C compiler found in $PATH
You need to install the Apple Xcode Development tools. There would be on Apple Developer Connection site or on your Mac OS X installation CDs/DVD. Ensure that the optional components for command line development are installed ("Unix Development" in the Xcode 3.x installer)
RVM not able to install different versions of Ruby
Looks like you need to install Xcode Command Line tools, so you can compile RVM on installation. I believe just installing Xcode will do it.
configure: error: C compiler cannot create executables
You have an old set of developer tools. gcc is reporting its version as 4.0.1. This may be left over from migrating from an older version of the OS. If you've installed Xcode 4.3.x, you need to launch it, go into its preferences, select the Locations tab, and click "Install" next to the Command Line Tools package.
Making the C compiler work on OS X?
It sounds like you want to run the C compiler from the command line (rather than in Xcode).
Go to Apple's developer site download section and download the Command Line Tools (macOS 10.12) for Xcode 8.2. This may require an active developer account.
The direct link is currently: Command Line Tools.
MacOS: configure: error: C compiler cannot create executables
It seems like librt is missing, which doesn't exist on MacOS. It seems openSMILE is currently not officially supported on that platform.
Here is what you need to do to get it to build anyway:
➜ sed -i -e 's/-lrt//' buildStandalone.sh
➜ ./buildStandalone.sh
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