From eddfbed43ef2a83fa1d27bc1e990c6b145492d9d Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Sun, 14 Jan 2007 20:45:45 +0000
Subject: [PATCH] Don't unnecessarily run configure and make.

---
 ChangeLog   |  7 +++++++
 gnulib-tool | 22 ++++++++++++++++++++--
 2 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 9e29999cc..c243c51cf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2007-01-14  Bruno Haible  <bruno@clisp.org>
 
+	* gnulib-tool (func_create_testdir): Don't unnecessarily run configure
+	and make.
+	Reported by Simon Josefsson in
+	<http://lists.gnu.org/archive/html/bug-gnulib/2007-01/msg00139.html>
+
+2007-01-14  Bruno Haible  <bruno@clisp.org>
+
 	* modules/allocsa-tests: New file.
 	* tests/test-allocsa.c: New file.
 
diff --git a/gnulib-tool b/gnulib-tool
index 412cd9e48..147190fda 100755
--- a/gnulib-tool
+++ b/gnulib-tool
@@ -22,7 +22,7 @@
 
 progname=$0
 package=gnulib
-cvsdatestamp='$Date: 2007-01-11 13:28:50 $'
+cvsdatestamp='$Date: 2007-01-14 20:45:45 $'
 last_checkin_date=`echo "$cvsdatestamp" | sed -e 's,^\$[D]ate: ,,'`
 version=`echo "$last_checkin_date" | sed -e 's/ .*$//' -e 's,/,-,g'`
 nl='
@@ -2659,7 +2659,25 @@ func_create_testdir ()
      ${AUTOMAKE} --add-missing --copy || func_exit 1
     ) || func_exit 1
   fi
-  if grep '^BUILT_SOURCES *+=' "$testdir/$sourcebase/Makefile.am" > /dev/null; then
+  # Need to run configure and make once, to create built files that are to be
+  # distributed (such as getdate.c).
+  # Extract the value of "CLEANFILES += ...".
+  cleaned_files=`sed -e "$sed_remove_backslash_newline" < "$testdir/$sourcebase/Makefile.am" \
+                 | sed -n -e 's,^CLEANFILES[ 	]*+=\([^#]*\).*$,\1,p'`
+  cleaned_files=" "`for file in $cleaned_files; do echo "$file"; done`" "
+  # Extract the value of "BUILT_SOURCES += ...". Remove variable references
+  # such $(FOO_H) because they don't refer to distributed files.
+  sed_remove_make_variables='s,[$]([A-Za-z0-9_]*),,g'
+  built_sources=`sed -e "$sed_remove_backslash_newline" < "$testdir/$sourcebase/Makefile.am" \
+                 | sed -n -e 's,^BUILT_SOURCES[ 	]*+=\([^#]*\).*$,\1,p' \
+                 | sed -e "$sed_remove_make_variables"`
+  distributed_built_sources=`for file in $built_sources; do
+                               case "$cleaned_files" in
+                                 *" "$file" "*) ;;
+                                 *) echo $file ;;
+                               esac;
+                             done`
+  if test -n "$distributed_built_sources"; then
     (cd "$testdir"
      ./configure || func_exit 1
        cd "$sourcebase"
-- 
2.11.0