[gentoo-dev] [PATCH 2/3] systemd.eclass: rework prefix logic for EAPI 7

[Mike Gilbert]

Signed-off-by: Mike Gilbert <floppym@g.o>
---
 eclass/systemd.eclass | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/eclass/systemd.eclass b/eclass/systemd.eclass
index f6d1fa2d92d6..9f439238fe6c 100644
--- a/eclass/systemd.eclass
+++ b/eclass/systemd.eclass
@@ -46,12 +46,23 @@ fi
 # instead.
 _systemd_get_dir() {
 	[[ ${#} -eq 2 ]] || die "Usage: ${FUNCNAME} <variable-name> <fallback-directory>"
-	local variable=${1} fallback=${2} d
+	local variable=${1} fallback=${2} d eprefix
+
+	if [[ ${EAPI:-0} == [0123456] ]]; then
+		eprefix=${EPREFIX}
+	else
+		# Derive from ESYSROOT due to weird PMS logic.
+		eprefix=${ESYSROOT#${SYSROOT}}
+	fi
 
 	if $(tc-getPKG_CONFIG) --exists systemd; then
 		d=$($(tc-getPKG_CONFIG) --variable="${variable}" systemd) || die
+
+		# Remove SYSROOT in case PKG_CONFIG_SYSROOT_DIR is set by cross-pkg-config.
 		d=${d#${SYSROOT}}
-		d=${d#${EPREFIX}}
+
+		# Remove any offset prefix.
+		d=${d#${eprefix}}
 	else
 		d=${fallback}
 	fi
-- 
2.30.0