Add a llvm_chost_setup function that handles CHOST-specific setup.
Initially, this means setting CMake variables that control
`find_package()` lookups.

Signed-off-by: Michał Górny <mgorny@gentoo.org>
---
eclass/llvm-r2.eclass | 37 ++++++++++++++++++++++++++++++-------
1 file changed, 30 insertions(+), 7 deletions(-)

diff --git a/eclass/llvm-r2.eclass b/eclass/llvm-r2.eclass
index 93c16e75be83..91e841821331 100644
--- a/eclass/llvm-r2.eclass
+++ b/eclass/llvm-r2.eclass
@@ -248,16 +248,35 @@ llvm_cbuild_setup() {
llvm_prepend_path -b "${LLVM_SLOT}"
}

-# @FUNCTION: llvm-r2_pkg_setup
+# @FUNCTION: llvm_chost_setup
# @DESCRIPTION:
-# Prepend the appropriate executable directory for the selected LLVM
-# slot to PATH.
+# Set the environment for finding selected LLVM slot installed
+# for CHOST.
#
-# The PATH manipulation is only done for source builds. The function
-# is a no-op when installing a binary package.
+# This function is meant to be used when the package in question uses
+# LLVM compiles against and links to LLVM. It is called automatically
+# by llvm-r2_pkg_setup if LLVM is found installed in ESYSROOT. +llvm_chost_setup() {
+ debug-print-function ${FUNCNAME} "$@"