Always put auxiliary code files in the same dir as other output files.

[bison.git] / bootstrap

diff --git a/bootstrap b/bootstrap
index 9923ff04e93b22b5eb184f6dd83ab6f63c50659f..f92d1ccd8ef55b5ffe8918b74b0d760a231d90ff 100755 (executable)
--- a/bootstrap
+++ b/bootstrap
@@ -211,7 +211,7 @@ if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then
   exit 1
 fi
 
-# If $STR is not already on a line by itself in $FILE, insert it,
+# If each line in $STR is not already on a line by itself in $FILE, insert it,
 # sorting the new contents of the file and replacing $FILE with the result.
 insert_sorted_if_absent() {
   file=$1
@@ -222,6 +222,21 @@ insert_sorted_if_absent() {
     || exit 1
 }
 
+# Adjust $PATTERN for $VC_IGNORE_FILE and insert it with
+# insert_sorted_if_absent.
+insert_vc_ignore() {
+  vc_ignore_file="$1"
+  case $vc_ignore_file in
+  *.gitignore)
+    # A .gitignore entry that does not start with `/' applies recursively to
+    # subdirectories, so prepend `/' to every .gitignore entry.
+    pattern=`echo "$2" | sed s,^,/,`;;
+  *)
+    pattern="$2";;
+  esac
+  insert_sorted_if_absent "$vc_ignore_file" "$pattern"
+}
+
 # Die if there is no AC_CONFIG_AUX_DIR($build_aux) line in configure.ac.
 found_aux_dir=no
 grep '^[        ]*AC_CONFIG_AUX_DIR(\['"$build_aux"'\])' configure.ac \
@@ -240,7 +255,7 @@ if test ! -d $build_aux; then
   mkdir $build_aux
   for dot_ig in x $vc_ignore; do
     test $dot_ig = x && continue
-    insert_sorted_if_absent $dot_ig $build_aux
+    insert_vc_ignore $dot_ig $build_aux
   done
 fi
 
@@ -252,6 +267,20 @@ cleanup_gnulib() {
   exit $status
 }
 
+# See if we can use gnulib's git-merge-changelog merge driver.
+
+if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
+  if git config merge.merge-changelog.driver >/dev/null ; then
+    :
+  elif (git-merge-changelog --version) >/dev/null 2>/dev/null ; then
+    echo "initializing git-merge-changelog driver"
+    git config merge.merge-changelog.name 'GNU-style ChangeLog merge driver'
+    git config merge.merge-changelog.driver 'git-merge-changelog %O %A %B'
+  else
+    echo "consider installing git-merge-changelog from gnulib"
+  fi
+fi
+
 # Get gnulib files.
 
 case ${GNULIB_SRCDIR--} in
@@ -350,7 +379,7 @@ check_dst_dir()
     for dot_ig in x $vc_ignore; do
       test $dot_ig = x && continue
       ig=$parent/$dot_ig
-      insert_sorted_if_absent $ig `echo "$dst_dir"|sed 's,.*/,,'`
+      insert_vc_ignore $ig `echo "$dst_dir"|sed 's,.*/,,'`
     done
   fi
 }
@@ -507,18 +536,18 @@ slurp() {
       test $dot_ig = x && continue
       ig=$dir/$dot_ig
       if test -n "$copied"; then
-       insert_sorted_if_absent $ig "$copied"
+       insert_vc_ignore $ig "$copied"
        # If an ignored file name ends with _.h, then also add
        # the name with just ".h".  Many gnulib headers are generated,
        # e.g., stdint_.h -> stdint.h, dirent_.h ->..., etc.
        # Likewise for .gperf -> .h, .y -> .c, and .sin -> .sed
        f=`echo "$copied"|sed 's/_\.h$/.h/;s/\.sin$/.sed/;s/\.y$/.c/;s/\.gperf$/.h/'`
-       insert_sorted_if_absent $ig "$f"
+       insert_vc_ignore $ig "$f"
 
        # For files like sys_stat_.h and sys_time_.h, record as
        # ignorable the directory we might eventually create: sys/.
        f=`echo "$copied"|sed 's/sys_.*_\.h$/sys/'`
-       insert_sorted_if_absent $ig "$f"
+       insert_vc_ignore $ig "$f"
       fi
     done
   done