From 17ee1f7567faf2888b15edcab2e5498f954ad226 Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Sat, 29 Jul 2006 13:18:04 +0000
Subject: [PATCH] Support projects without a top-level Makefile.am.

---
 ChangeLog   |  6 ++++++
 gnulib-tool | 54 +++++++++++++++++++++++++++++++-----------------------
 2 files changed, 37 insertions(+), 23 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index f0ed1bbe1..2dd6af12d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,10 +1,16 @@
 2006-07-29  Bruno Haible  <bruno@clisp.org>
 
+	* gnulib-tool (import, update): If there is no Makefile.am, look at
+	aclocal.m4, instead of bailing out.
+
+2006-07-29  Bruno Haible  <bruno@clisp.org>
+
 	* gnulib-tool (SORT): New variable.
 	(func_usage): Undocument --assume-autoconf option.
 	Remove --assume-autoconf option handling.
 	(autoconf_minversion): Determine from the contents of configure.ac.
 	(func_import): Remove autoconf_minversion handling.
+	Suggested by Eric Blake.
 
 2006-07-29  Bruno Haible  <bruno@clisp.org>
 
diff --git a/gnulib-tool b/gnulib-tool
index 1160e4b0e..3b8afd3e2 100755
--- a/gnulib-tool
+++ b/gnulib-tool
@@ -22,7 +22,7 @@
 
 progname=$0
 package=gnulib
-cvsdatestamp='$Date: 2006-07-29 13:14:42 $'
+cvsdatestamp='$Date: 2006-07-29 13:18:04 $'
 last_checkin_date=`echo "$cvsdatestamp" | sed -e 's,^\$[D]ate: ,,'`
 version=`echo "$last_checkin_date" | sed -e 's/ .*$//' -e 's,/,-,g'`
 
@@ -1911,9 +1911,6 @@ case $mode in
       fi
     fi
 
-    test -f "$destdir"/Makefile.am \
-      || func_fatal_error "cannot find $destdir/Makefile.am"
-
     # Analyze configure.ac.
     guessed_auxdir="."
     guessed_libtool=
@@ -1951,30 +1948,41 @@ case $mode in
       # To get this list of directories, look at Makefile.am. (Not at
       # configure, because it may be omitted from CVS. Also, don't run
       # "find $destdir -name gnulib-cache.m4", as it might be too expensive.)
-      aclocal_amflags=`grep '^ACLOCAL_AMFLAGS[	 ]*=' "$destdir"/Makefile.am | sed -e 's/^ACLOCAL_AMFLAGS[	 ]*=\(.*\)$/\1/'`
       m4dirs=
       m4dirs_count=0
-      m4dir_is_next=
-      for arg in $aclocal_amflags; do
-        if test -n "$m4dir_is_next"; then
-          # Ignore absolute directory pathnames, like /usr/local/share/aclocal.
-          case "$arg" in
-            /*) ;;
-            *)
-              if test -f "$destdir/$arg"/gnulib-cache.m4; then
-                m4dirs="$m4dirs $arg"
-                m4dirs_count=`expr $m4dirs_count + 1`
-              fi
-              ;;
-          esac
-        else
-          if test "X$arg" = "X-I"; then
-            m4dir_is_next=yes
+      if test -f "$destdir"/Makefile.am; then
+        aclocal_amflags=`grep '^ACLOCAL_AMFLAGS[	 ]*=' "$destdir"/Makefile.am | sed -e 's/^ACLOCAL_AMFLAGS[	 ]*=\(.*\)$/\1/'`
+        m4dir_is_next=
+        for arg in $aclocal_amflags; do
+          if test -n "$m4dir_is_next"; then
+            # Ignore absolute directory pathnames, like /usr/local/share/aclocal.
+            case "$arg" in
+              /*) ;;
+              *)
+                if test -f "$destdir/$arg"/gnulib-cache.m4; then
+                  m4dirs="$m4dirs $arg"
+                  m4dirs_count=`expr $m4dirs_count + 1`
+                fi
+                ;;
+            esac
           else
-            m4dir_is_next=
+            if test "X$arg" = "X-I"; then
+              m4dir_is_next=yes
+            else
+              m4dir_is_next=
+            fi
           fi
+        done
+      else
+        # No Makefile.am! Oh well. Look at the last generated aclocal.m4.
+        if test -f "$destdir"/aclocal.m4; then
+          sedexpr1='s,^m4_include(\[\(.*\)])$,\1,p'
+          sedexpr2='s,^[^/]*$,.,'
+          sedexpr3='s,/[^/]*$,,'
+          m4dirs=`sed -n -e "$sedexpr1" aclocal.m4 | sed -e "$sedexpr2" -e "$sedexpr3" | LC_ALL=C sort | LC_ALL=C uniq`
+          m4dirs_count=`echo "$m4dirs" | wc -l`
         fi
-      done
+      fi
       if test $m4dirs_count = 0; then
         # First use of gnulib in a package.
         # Any number of additional modules can be given.
-- 
2.11.0