From 8f08046606c147004642a7569f78bc61ab450419 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Mon, 25 Nov 2013 15:51:22 +0000
Subject: [PATCH] Expand configure variables before writing config.status

This way, we can use config.status for generating scripts/* (without
ending up with lines like "#! /usr/bin/perl -I${libexecdir}/...").
---
 configure.ac  | 11 ++++++++++-
 mk/install.mk |  2 --
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac
index 57c294d9..c6bb204a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -180,7 +180,7 @@ AC_MSG_RESULT(yes)
 AC_MSG_CHECKING([for the Perl installation prefix])
 perlversion=$($perl -e 'use Config; print $Config{version};')
 perlarchname=$($perl -e 'use Config; print $Config{archname};')
-AC_SUBST(perllibdir, [$\(libdir\)/perl5/site_perl/$perlversion/$perlarchname])
+AC_SUBST(perllibdir, [${libdir}/perl5/site_perl/$perlversion/$perlarchname])
 AC_MSG_RESULT($perllibdir)
 
 
@@ -331,6 +331,15 @@ fi
 AC_SUBST(tarFlags)
 
 
+# Expand all variables in config.status.
+test "$prefix" = NONE && prefix=$ac_default_prefix
+test "$exec_prefix" = NONE && exec_prefix='${prefix}'
+for name in $ac_subst_vars; do
+    declare $name="$(eval echo "${!name}")"
+    declare $name="$(eval echo "${!name}")"
+    declare $name="$(eval echo "${!name}")"
+done
+
 AC_CONFIG_HEADER([config.h])
 AC_CONFIG_FILES([])
 AC_OUTPUT
diff --git a/mk/install.mk b/mk/install.mk
index 633c432a..c5eb8eb3 100644
--- a/mk/install.mk
+++ b/mk/install.mk
@@ -51,5 +51,3 @@ define install-symlink =
 	$(QUIET) ln -sfn $(1) $(2)
 
 endef
-
-