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Home » Developing U++ » U++ Developers corner » theide with libclang
Re: theide with libclang [message #58958 is a reply to message #58957] Sun, 02 October 2022 02:19 Go to previous messageGo to previous message
Lance is currently offline  Lance
Messages: 527
Registered: March 2007
Contributor
I did a clean installation of Ubuntu 22.04 LTS. After update and upgrade, first thing I did was download and ./Install UPP version 16450.

Turns out
bool LoadLibClangAutomatically()
{
	String libdir = TrimBoth(Sys("llvm-config --libdir"));
	if(LoadLibClang(libdir + "/libclang.so")) {
		return true;
	}
	if(LoadLibClang("/usr/lib/libclang.so")) {
		return true;
	}
	for(int i = 20; i >= 10; i--) {
		if(LoadLibClang("/usr/lib/llvm-" + AsString(i) + "/lib/libclang.so")) {
			return true;
		}
	}
	
	return false;
}

failed even though a libclang is present in the system.

After I made the following change, libclang can be successfully located. It seems some expected symlinks were not present in the system.
bool LoadLibClangAutomatically()
{
	String libdir = TrimBoth(Sys("llvm-config-14 --libdir"));
	if(LoadLibClang(libdir + "/libclang.so.1")) {
		return true;
	}
	if(LoadLibClang("/usr/lib/libclang.so")) {
		return true;
	}
	for(int i = 20; i >= 10; i--) {
		if(LoadLibClang("/usr/lib/llvm-" + AsString(i) + "/lib/libclang.so")) {
			return true;
		}
	}
	
	return false;
}


After that, Assist++ is up and running, parsing the sources and populating the right panel with class/function/etc info. I was even successful to invoke code completion with object name following by a dot(.). It went much further than it used to. Unfortunately segmentation fault follows. Yes, it's built in debug mode. No, gdb, run & bt would not produce anything useful, essentially very similar to what Tom and I have posted.

[Updated on: Sun, 02 October 2022 02:21]

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