Support out-of-tree buildsscratch/mps-import2

* mps/example/scheme/Makefile.in (VPATH): Set VPATH.
* mps/Makefile.in (COMMON_OPTS): New.  Pass SRCDIR down to sub-make.
* mps/code/comm.gmk (VPATH): Set VPATH from SRCDIR parameter
* mps/configure.ac (AC_CONFIG_COMMANDS): Copy .gmk makefiles and some
other things to the biuld directory.

1 files changed, 14 insertions, 0 deletions

diff --git a/mps/configure.ac b/mps/configure.ac
index 0cbf640fdcb..18c8a1494c0 100644
--- a/mps/configure.ac
+++ b/mps/configure.ac
@@ -193,6 +193,20 @@ AC_SUBST(LDFLAGS)
 AC_SUBST(CPPFLAGS)
 AC_CONFIG_FILES(Makefile example/scheme/Makefile)
 
+AC_CONFIG_COMMANDS(
+  [gmk],
+  [case $srcdir in
+     .) # in-place build
+        ;;
+     *) echo "copying .gmk files"
+        (cd $srcdir &&
+         cp --parents code/*.gmk \
+            tool/testcases.txt tool/testrun.sh \
+            example/scheme/*.scm \
+            $ac_pwd)
+         ;;
+   esac])
+
 AC_OUTPUT
 
 echo 1>&2 "CONFIGURE/MAKE IS NOT THE BEST WAY TO BUILD THE MPS