--- gnucap-20210107/main/configure.orig	2021-12-28 08:41:28.405969952 +0100
+++ gnucap-20210107/main/configure	2021-12-28 08:41:44.960231518 +0100
@@ -36,7 +36,7 @@
     -e "s#@includedir@#$\{prefix\}/include#" \
     -e "s#@datarootdir@#$\{prefix\}/share/gnucap#" \
     -e "s#@docdir@#$\{prefix\}/share/doc/gnucap#" \
-    -e "s#@sysconfdir@#$\{prefix\}/etc#" \
+    -e "s#@sysconfdir@#/etc#" \
     -e "s#@pkglibdir@#$pkglibdir#" \
     -e "s#@pkglibdir_expanded@#$pkglibdir_expanded#" \
     -e "s#@CXXFLAGS@#$CCFLAGS#" \