X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=gnulib-tool;h=44fd4a1a04f8d2199007193f9307df1926c6afe4;hb=4081106d1a7a3b0098b1c9018bc218fa8d31bf23;hp=9654c631f969953a0980a8d5df19a0851c37a3ba;hpb=b4dfec714c928a4519c945c5e37d3a38783ec5ba;p=gnulib.git

diff --git a/gnulib-tool b/gnulib-tool
index 9654c631f..44fd4a1a0 100755
--- a/gnulib-tool
+++ b/gnulib-tool
@@ -1,6 +1,6 @@
 #! /bin/sh
 #
-# Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -22,7 +22,7 @@
 
 progname=$0
 package=gnulib
-cvsdatestamp='$Date: 2004-10-15 15:43:58 $'
+cvsdatestamp='$Date: 2005-03-04 19:36:42 $'
 last_checkin_date=`echo "$cvsdatestamp" | sed -e 's,^\$[D]ate: ,,'`
 version=`echo "$last_checkin_date" | sed -e 's/ .*$//' -e 's,/,-,g'`
 
@@ -117,6 +117,41 @@ func_fatal_error ()
   exit 1
 }
 
+# func_cp_if_changed SRC DEST
+# Like cp, but avoids munging timestamps if the file hasn't changed.
+# Uses also the variables
+# - dry_run         true if actions shall only be printed, blank otherwise
+func_cp_if_changed ()
+{
+  if test $# -ne 2; then
+    echo "usage: func_cp_if_changed SRC DEST" >&2
+  fi
+  test -n "$dry_run" && dry=echo
+  if cmp "$1" "$2" >/dev/null 2>&1; then
+    :
+  else
+    $dry cp -p "$1" "$2"
+  fi
+}
+
+# func_mv_if_changed SRC DEST
+# Like mv, but avoids munging timestamps if the file hasn't changed.
+# Removes SRC if it is not renamed.
+# Uses also the variables
+# - dry_run         true if actions shall only be printed, blank otherwise
+func_mv_if_changed ()
+{
+  if test $# -ne 2; then
+    echo "usage: func_mv_if_changed SRC DEST" >&2
+  fi
+  test -n "$dry_run" && dry=echo
+  if cmp "$1" "$2" >/dev/null 2>&1; then
+    $dry rm "$1"
+  else
+    $dry mv "$1" "$2"
+  fi
+}
+
 # Command-line option processing.
 # Removes the OPTIONS from the arguments. Sets the variables:
 # - mode            list or import or create-testdir or create-megatestdir
@@ -402,12 +437,87 @@ func_modules_to_filelist ()
   files=`for f in $files; do echo $f; done | sort | uniq`
 }
 
+# func_emit_lib_Makefile_am
+# emits the contents of lib/Makefile.am to standard output.
+# Input:
+# - modules         list of modules, including dependencies
+# - libname         library name
+# - libtool         true if libtool will be used, blank otherwise
+# - cmd             (optional) command that led to this invocation
+# - actioncmd       (optional) command that will reproduce this invocation
+func_emit_lib_Makefile_am ()
+{
+  if test -n "$libtool"; then
+    libext=la
+    perhapsLT=LT
+  else
+    libext=a
+    perhapsLT=
+  fi
+  echo "## Process this file with automake to produce Makefile.in."
+  echo "# Copyright (C) 2004 Free Software Foundation, Inc."
+  echo "#"
+  echo "# This file is free software, distributed under the terms of the GNU"
+  echo "# General Public License.  As a special exception to the GNU General"
+  echo "# Public License, this file may be distributed as part of a program"
+  echo "# that contains a configuration script generated by Automake, under"
+  echo "# the same distribution terms as the rest of that program."
+  echo "#"
+  echo "# Generated by gnulib-tool."
+  if test -n "$cmd"; then
+    echo "# Invoked as: $cmd"
+  fi
+  if test -n "$actioncmd"; then
+    echo "# Reproduce by: $actioncmd"
+  fi
+  echo
+  # No need to generate dependencies since the sources are in gnulib, not here.
+  echo "AUTOMAKE_OPTIONS = 1.5 gnits no-dependencies"
+  echo
+  echo "noinst_${perhapsLT}LIBRARIES = $libname.$libext"
+  echo
+  echo "${libname}_${libext}_SOURCES ="
+  echo "${libname}_${libext}_LIBADD = @${perhapsLT}LIBOBJS@"
+  echo "EXTRA_DIST ="
+  echo "BUILT_SOURCES ="
+  echo "SUFFIXES ="
+  echo "MOSTLYCLEANFILES ="
+  echo "CLEANFILES ="
+  echo "DISTCLEANFILES ="
+  echo "MAINTAINERCLEANFILES ="
+  echo
+  for module in $modules; do
+    func_verify_module
+    if test -n "$module"; then
+      {
+        func_get_automake_snippet "$module" |
+          sed -e 's,lib_\([A-Z][A-Z]*\),'"${libname}_${libext}"'_\1,g'
+        if test "$module" = 'alloca'; then
+          echo "${libname}_${libext}_LIBADD += @${perhapsLT}ALLOCA@"
+        fi
+      } > amsnippet.tmp
+      # Skip the contents if its entirely empty.
+      if grep '[^ 	]' amsnippet.tmp > /dev/null ; then
+        echo "## begin gnulib module $module"
+        echo
+        cat amsnippet.tmp
+        echo "## end   gnulib module $module"
+        echo
+      fi
+      rm -f amsnippet.tmp
+    fi
+  done
+  echo
+  echo "# Makefile.am ends here"
+}
+
 # func_import modules
 # Uses also the variables
 # - destdir         target directory
 # - libname         library name
 # - sourcebase      directory relative to destdir where to place source code
 # - m4base          directory relative to destdir where to place *.m4 macros
+# - libtool         true if libtool will be used, blank otherwise
 # - lgpl            true if library's license shall be LGPL, blank otherwise
 # - dry_run         true if actions shall only be printed, blank otherwise
 # - supplied_opts   all options passed to gnulib-tool
@@ -448,10 +558,9 @@ func_import ()
       m4/*) g=`echo "$f" | sed -e "s,^m4/,$m4base/,"` ;;
       *) g="$f" ;;
     esac
-    test -n "$dry_run" && dry=echo
-    $dry cp -p "$gnulib_dir/$f" "$destdir/$g"
+    func_cp_if_changed "$gnulib_dir/$f" "$destdir/$g"
     # Update license.
-    if test -z "$dry_run" -a -n "$lgpl" -a -n "$source"; then
+    if test -z "$dry_run" && test -n "$lgpl" && test -n "$source"; then
       perl -pi -e 's/GNU General/GNU Lesser General/g;' \
                -e 's/version 2([ ,])/version 2.1\1/g' \
                $destdir/$g
@@ -472,64 +581,19 @@ func_import ()
 
   # Create lib/Makefile.am.
   echo "Creating $destdir/$sourcebase/Makefile.am..."
-  if test -n "$libtool"; then
-    libext=la
-    perhapsLT=LT
+  if test -z "$dry_run"; then
+    func_emit_lib_Makefile_am > $destdir/$sourcebase/Makefile.am.new
   else
-    libext=a
-    perhapsLT=
+    func_emit_lib_Makefile_am
   fi
-  (
-    if test -z "$dry_run"; then
-      exec > $destdir/$sourcebase/Makefile.am
-    else
-      echo "# $destdir/$sourcebase/Makefile.am"
-    fi
-    echo "## Process this file with automake to produce Makefile.in."
-    echo "# Copyright (C) 2004 Free Software Foundation, Inc."
-    echo "#"
-    echo "# This file is free software, distributed under the terms of the GNU"
-    echo "# General Public License.  As a special exception to the GNU General"
-    echo "# Public License, this file may be distributed as part of a program"
-    echo "# that contains a configuration script generated by Automake, under"
-    echo "# the same distribution terms as the rest of that program."
-    echo "#"
-    echo "# Generated by gnulib-tool."
-    echo "#"
-    echo "# Invoked as: $cmd"
-    echo "# Reproduce by: $actioncmd"
-    echo
-    echo "AUTOMAKE_OPTIONS = 1.8 gnits"
-    echo
-    echo "noinst_${perhapsLT}LIBRARIES = $libname.$libext"
-    echo
-    echo "${libname}_${libext}_SOURCES ="
-    echo "${libname}_${libext}_LIBADD = @${perhapsLT}LIBOBJS@"
-    echo "EXTRA_DIST ="
-    echo "BUILT_SOURCES ="
-    echo "SUFFIXES ="
-    echo "MOSTLYCLEANFILES ="
-    echo "CLEANFILES ="
-    echo "DISTCLEANFILES ="
-    echo "MAINTAINERCLEANFILES ="
-    for module in $modules; do
-      func_verify_module
-      if test -n "$module"; then
-        func_get_automake_snippet "$module" | sed -e "s,lib_SOURCES,${libname}_${libext}_SOURCES,g" -e "s,lib_OBJECTS,${libname}_${libext}_OBJECTS,g"
-        if test "$module" = 'alloca'; then
-          echo "${libname}_${libext}_LIBADD += @ALLOCA@"
-        fi
-      fi
-    done
-    echo
-    echo "# Makefile.am ends here"
-  )
+  func_mv_if_changed $destdir/$sourcebase/Makefile.am.new \
+                     $destdir/$sourcebase/Makefile.am
 
   # Create gnulib.m4.
   echo "Creating $destdir/$m4base/gnulib.m4..."
   (
     if test -z "$dry_run"; then
-      exec > $destdir/$m4base/gnulib.m4
+      exec > $destdir/$m4base/gnulib.m4.new
     else
       echo "# $destdir/$m4base/gnulib.m4"
     fi
@@ -561,6 +625,12 @@ func_import ()
       func_verify_module
       if test -n "$module"; then
         func_get_autoconf_snippet "$module" | sed -e '/^$/d;' -e 's/^/  /' -e 's/AM_GNU_GETTEXT(\[external\])/dnl you must add AM_GNU_GETTEXT([external]) or similar to configure.ac./'
+        if test "$module" = 'alloca' && test -n "$libtool"; then
+          echo 'changequote(,)dnl'
+          echo 'LTALLOCA=`echo "$ALLOCA" | sed '"'"'s/\.[^.]* /.lo /g;s/\.[^.]*$/.lo/'"'"'`'
+          echo 'changequote([, ])dnl'
+          echo 'AC_SUBST(LTALLOCA)'
+        fi
       fi
     done
     echo "])"
@@ -582,8 +652,14 @@ func_import ()
     echo
     echo "# gnulib.m4 ends here"
   )
+  func_mv_if_changed $destdir/$m4base/gnulib.m4.new $destdir/$m4base/gnulib.m4
   echo "Finished."
   echo
+  echo "You may need to add #include directives for the following .h files."
+  for module in $modules; do
+    func_get_include_directive "$module" | sed -e '/^$/d;' -e 's/^/  /'
+  done
+  echo
   echo "Don't forget to add \"$sourcebase/Makefile\""
   echo "to AC_CONFIG_FILES in \"$configure_ac\" and to mention"
   echo "\"`basename $sourcebase`\" in SUBDIRS in some Makefile.am."
@@ -625,33 +701,7 @@ func_create_testdir ()
 
   # Create lib/Makefile.am.
   mkdir -p "$testdir/lib"
-  (echo "## Process this file with automake to produce Makefile.in."
-   echo
-   echo "AUTOMAKE_OPTIONS = 1.5 gnits no-dependencies"
-   echo
-   echo "noinst_LIBRARIES = $libname.a"
-   echo
-   echo "$libname"'_a_SOURCES ='
-   echo "$libname"'_a_LIBADD = @LIBOBJS@'
-   echo '#'"$libname"'_la_LIBADD = @LTLIBOBJS@'
-   echo "EXTRA_DIST ="
-   echo "BUILT_SOURCES ="
-   echo "SUFFIXES ="
-   echo "MOSTLYCLEANFILES ="
-   echo "CLEANFILES ="
-   echo "DISTCLEANFILES ="
-   echo "MAINTAINERCLEANFILES ="
-   for module in $modules; do
-     func_verify_module
-     if test -n "$module"; then
-       func_get_automake_snippet "$module" | sed -e "s,lib_SOURCES,$libname"'_a_SOURCES,g' -e "s,lib_OBJECTS,$libname"'_a_OBJECTS,g'
-       if test "$module" = 'alloca'; then
-         echo "$libname"'_a_LIBADD += @ALLOCA@'
-         echo '#'"$libname"'_la_LIBADD += @LTALLOCA@'
-       fi
-     fi
-   done
-  ) > "$testdir/lib/Makefile.am"
+  func_emit_lib_Makefile_am > "$testdir/lib/Makefile.am"
 
   # Create m4/Makefile.am.
   mkdir -p "$testdir/m4"