Allow to build with the PyPI package "clang" instead of "libclang". 1. It seems to be maintained. 2. In the FreeBSD base system there is no pre-built libclang.so. If you need this library you have to install llvm from ports additionally. 2. On FreeBSD there is no pre-built wheel "libclang" with a packaged libclang.so.

BEGIN			{ try=0; tryline=0; }
/fz_try\(ctx\)/		{ try++; if (try == 1) tryline=FNR }
/fz_catch\(ctx\)/	{ try--; if (try == 0) tryline=0 }
/^[\t ]*return/		{ if (try > 0) { print(FILENAME, FNR, tryline); print($0); } }