Andres Freund 240d40db88 Detect LLVM 7 without specifying binaries explicitly.
Before this commit LLVM 7 was supported, but only if one explicitly
provided LLVM_CONFIG= and CLANG= paths.  As LLVM 7 is the first
version that includes our upstreamed debugging and profiling features,
and as debian is planning to default to 7 due to wider architecture
support, it seems good to support auto-detecting that version.

Author: Christoph Berg
Discussion: https://postgr.es/m/20180912124517.GD24584@msg.df7cb.de
Backpatch: 11, where LLVM was introduced
2018-09-13 10:42:11 -07:00
..
2018-06-11 08:54:58 -04:00
2012-08-21 23:42:43 -04:00
2010-09-20 22:08:53 +02:00
2017-03-23 15:28:48 -04:00