* Makefile.in (local-distclean): Remove leftover built files.

[pf3gnuchains/gcc-fork.git] / missing

diff --git a/missing b/missing
index a6abd06..7789652 100755 (executable)
--- a/missing
+++ b/missing
@@ -41,9 +41,11 @@ Supported PROGRAM values:
   autoconf     touch file \`configure'
   autoheader   touch file \`config.h.in'
   automake     touch all \`Makefile.in' files
-  bison        touch file \`y.tab.c'
+  bison        create \`y.tab.[ch]', if possible, from existing .[ch]
+  flex         create \`lex.yy.c', if possible, from existing .c
+  lex          create \`lex.yy.c', if possible, from existing .c
   makeinfo     touch the output file
-  yacc         touch file \`y.tab.c'"
+  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]"
     ;;
 
   -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
@@ -80,7 +82,17 @@ WARNING: \`$1' is missing on your system.  You should only need it if
          you modified \`acconfig.h' or \`configure.in'.  You might want
          to install the \`Autoconf' and \`GNU m4' packages.  Grab them
          from any GNU archive site."
-    touch config.h.in
+    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' configure.in`
+    test -z "$files" && files="config.h"
+    touch_files=
+    for f in $files; do
+      case "$f" in
+      *:*) touch_files="$touch_files "`echo "$f" |
+                                      sed -e 's/^[^:]*://' -e 's/:.*//'`;;
+      *) touch_files="$touch_files $f.in";;
+      esac
+    done
+    touch $touch_files
     ;;
 
   automake)
@@ -89,9 +101,9 @@ WARNING: \`$1' is missing on your system.  You should only need it if
          you modified \`Makefile.am', \`acinclude.m4' or \`configure.in'.
          You might want to install the \`Automake' and \`Perl' packages.
          Grab them from any GNU archive site."
-    find . -type f -name Makefile.am -print \
-      | sed 's/^\(.*\).am$/touch \1.in/' \
-      | sh
+    find . -type f -name Makefile.am -print |
+          sed 's/\.am$/.in/' |
+          while read f; do touch "$f"; done
     ;;
 
   bison|yacc)
@@ -100,7 +112,51 @@ WARNING: \`$1' is missing on your system.  You should only need it if
          you modified a \`.y' file.  You may need the \`Bison' package
          in order for those modifications to take effect.  You can get
          \`Bison' from any GNU archive site."
-    touch y.tab.c
+    rm -f y.tab.c y.tab.h
+    if [ $# -ne 1 ]; then
+        eval LASTARG="\${$#}"
+       case "$LASTARG" in
+       *.y)
+           SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
+           if [ -f "$SRCFILE" ]; then
+                cp "$SRCFILE" y.tab.c
+           fi
+           SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
+           if [ -f "$SRCFILE" ]; then
+                cp "$SRCFILE" y.tab.h
+           fi
+         ;;
+       esac
+    fi
+    if [ ! -f y.tab.h ]; then
+       echo >y.tab.h
+    fi
+    if [ ! -f y.tab.c ]; then
+       echo 'main() { return 0; }' >y.tab.c
+    fi
+    ;;
+
+  lex|flex)
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified a \`.l' file.  You may need the \`Flex' package
+         in order for those modifications to take effect.  You can get
+         \`Flex' from any GNU archive site."
+    rm -f lex.yy.c
+    if [ $# -ne 1 ]; then
+        eval LASTARG="\${$#}"
+       case "$LASTARG" in
+       *.l)
+           SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
+           if [ -f "$SRCFILE" ]; then
+                cp "$SRCFILE" lex.yy.c
+           fi
+         ;;
+       esac
+    fi
+    if [ ! -f lex.yy.c ]; then
+       echo 'main() { return 0; }' >lex.yy.c
+    fi
     ;;
 
   makeinfo)