s/Id/OpenLDAP/ in RCSids

[openldap] / build / mkdep

diff --git a/build/mkdep b/build/mkdep
index 006f05abbc33abde62c9bbfd188b891163989835..55ef1e4c5091e53339993ea1c07437f462268b62 100755 (executable)
--- a/build/mkdep
+++ b/build/mkdep
@@ -1,5 +1,10 @@
-#!/bin/sh -
+#! /bin/sh -
+# $OpenLDAP$
+## Copyright 1998,1999 The OpenLDAP Foundation
+## COPYING RESTRICTIONS APPLY.  See COPYRIGHT File in top level directory
+## of this package for details.
 #
+# Portions
 # Copyright (c) 1987 Regents of the University of California.
 # All rights reserved.
 #
@@ -25,29 +30,52 @@ set -e                              # exit immediately if any errors occur
 
 MAKE=Makefile                  # default makefile name is "Makefile"
 NOSLASH="no"                   # by default, / dependencies are included
-CC=cc                          # default compiler is cc
+SRCDIR=""
+SED=cat
+
+: ${CC=cc}                                     # use cc by default
+
+# We generally set these via the command line options
+: ${MKDEP_CC=$CC}                      # select default compiler to generate dependencies
+: ${MKDEP_CFLAGS="-M"} # cc -M usually produces dependencies
 
 while :
        do case "$1" in
+               # the -s flag removes dependencies to files that begin with /
+               -s)
+                       NOSLASH=yes;
+                       shift ;;
+
                # -f allows you to select a makefile name
                -f)
                        MAKE=$2
                        shift; shift ;;
 
-               # -c allows you to select a compiler to use (default is cc)
+               # -d allows you to select a VPATH directory
+               -d)
+                       SRCDIR=$2
+                       shift; shift ;;
+
+               # -c allows you to override the compiler used to generate dependencies
                -c)
-                       CC=$2
+                       MKDEP_CC=$2
+                       shift; shift ;;
+
+               # -m allows you to override the compiler flags used to generate
+               # dependencies.
+               -m)
+                       MKDEP_CFLAGS=$2
                        shift; shift ;;
 
                # the -p flag produces "program: program.c" style dependencies
                # so .o's don't get produced
                -p)
-                       SED='s;\.o;;'
+                       SED='sed -e s;\.o;;'
                        shift ;;
 
-               # the -s flag removes dependencies to files that begin with /
-               -s)
-                       NOSLASH=yes;
+               # the -l flag produces libtool compatible dependencies
+               -l)
+                       SED='sed -e s;\.o:;.lo:;'
                        shift ;;
 
 #              -*)     shift ;;
@@ -57,19 +85,19 @@ while :
        esac
 done
 
-if [ $# = 0 ] ; then
-       echo 'usage: mkdep [-p] [-f makefile] [flags] file ...'
+if test $# = 0 ; then
+       echo 'usage: mkdep [-p] [-s] [-c cc] [-m flags] [-f makefile] [-d srcdir] [cppflags] file ...'
        exit 1
 fi
 
-if [ ! -w $MAKE ]; then
+if test ! -w $MAKE ; then
        echo "mkdep: no writeable file \"$MAKE\""
        exit 1
 fi
 
 TMP=/tmp/mkdep$$
 
-trap 'rm -f $TMP ; exit 1' 1 2 3 13 15
+trap 'rm -f $TMP.sed $TMP ; exit 1' 1 2 3 13 15
 
 cp $MAKE ${MAKE}.bak
 
@@ -89,38 +117,60 @@ _EOF_
 # egrep '^#include[    ]*".*"' /dev/null $* |
 # sed -e 's/:[^"]*"\([^"]*\)".*/: \1/' -e 's/\.c/.o/' |
 
-$CC -M $* |
-sed "
-       s; \./; ;g
-       $SED" |
+if test "x$SRCDIR" = "x" ; then
+       files=$*
+else
+       files=
+       for i in $* ; do
+               if test -f $i ; then
+                       files="$files $i"
+               elif test -f $SRCDIR/$i ; then
+                       files="$files $SRCDIR/$i"
+               else
+                       files="$files $i"
+               fi
+       done
+
+       MKDEP_CFLAGS="$MKDEP_CFLAGS -I$SRCDIR"
+fi
+
+cat << _EOF_ >> $TMP
+
+#
+# files: $*
+# command: $MKDEP_CC $MKDEP_CFLAGS $files
+#
+
+_EOF_
+
+$MKDEP_CC $MKDEP_CFLAGS $files | \
+       sed -e 's; \./; ;g' | \
+       $SED > $TMP.sed
+# do not pipe to awk.  SGI awk wants a filename as argument.
+# (or '-', but I do not know if all other awks support that.)
 awk '
-$1 ~ /:/ {
+$1 ~ /:$/ {
        filenm=$1
-       dep=$2
+       dep=substr($0, length(filenm)+1)
 }
-$1 !~ /:/ {
-       dep=$1
+$1 !~ /:$/ {
+       dep=$0
 }
 /.*/ {
-       if ( noslash = "yes" && dep ~ /^\// ) next
-       if (filenm != prev) {
-               if (rec != "")
-                       print rec;
-               rec = filenm " " dep;
-               prev = filenm;
+       if ( length(filenm) < 2 ) next
+       if ( filenm ~ /:.*:$/ ) next
+       split(dep, depends, " ")
+       for(d in depends) {
+               dfile = depends[d]
+               if ( length(dfile) < 2 ) continue
+               if ( dfile ~ /:/ ) continue
+               if (( noslash == "yes") && (dfile ~ /^\// )) continue
+               rec = filenm " " dfile
+               print rec
        }
-       else {
-               if (length(rec dep) > 78) {
-                       print rec;
-                       rec = filenm " " dep;
-               }
-               else
-                       rec = rec " " dep
-       }
-    }
-END {
-       print rec
-}' noslash="$NOSLASH" >> $TMP
+}
+' noslash="$NOSLASH" $TMP.sed >> $TMP
+
 
 cat << _EOF_ >> $TMP
 
@@ -129,5 +179,5 @@ _EOF_
 
 # copy to preserve permissions
 cp $TMP $MAKE
-rm -f ${MAKE}.bak $TMP
+rm -f ${MAKE}.bak $TMP.sed $TMP
 exit 0