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-rw-r--r--configure.ac4
1 files changed, 4 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index bbd4af48..0c5fd4cd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,6 +16,10 @@ dnl By default, everything under PAM is installed below /usr.
dnl
AC_PREFIX_DEFAULT(/usr)
+dnl for use instead of includedir substitutions in *.pc files
+pkgconfig_includedir=$includedir
+AC_SUBST(pkgconfig_includedir)
+
dnl and some hacks to use /etc and /lib
test "${prefix}" = "NONE" && prefix="/usr"
if test ${prefix} = '/usr'