From 54d0dc0990f13a86680fa55c623f0570853749ac Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Mon, 20 Aug 2018 11:38:11 +0000
Subject:  Support conditional slashpackage builds

---
 configure | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/configure b/configure
index de87b55..9686932 100755
--- a/configure
+++ b/configure
@@ -246,12 +246,19 @@ if $slashpackage ; then
   libdir=${home}/library
   libexecdir=$bindir
   includedir=${home}/include
-  while read dep ; do
-    addincpath="$addincpath -I${sproot}${dep}/include"
-    vpaths="$vpaths ${sproot}${dep}/library"
-    addlibspath="$addlibspath -L${sproot}${dep}/library"
-    vpathd="$vpathd ${sproot}${dep}/library.so"
-    addlibdpath="$addlibdpath -L${sproot}${dep}/library.so"
+  while read dep condvar ; do
+    if test -n "$condvar" ; then
+      eval "cond=$condvar"
+    else
+      cond=true
+    fi
+    if $cond ; then
+      addincpath="$addincpath -I${sproot}${dep}/include"
+      vpaths="$vpaths ${sproot}${dep}/library"
+      addlibspath="$addlibspath -L${sproot}${dep}/library"
+      vpathd="$vpathd ${sproot}${dep}/library.so"
+      addlibdpath="$addlibdpath -L${sproot}${dep}/library.so"
+    fi
   done < package/deps-build
 fi
 
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