openldap/build/mkdep

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#! /bin/sh -
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# $OpenLDAP$
## This work is part of OpenLDAP Software <http://www.openldap.org/>.
##
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## Copyright 1998-2010 The OpenLDAP Foundation.
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## All rights reserved.
##
## Redistribution and use in source and binary forms, with or without
## modification, are permitted only as authorized by the OpenLDAP
## Public License.
##
## A copy of this license is available in the file LICENSE in the
## top-level directory of the distribution or, alternatively, at
## <http://www.OpenLDAP.org/license.html>.
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#
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## Portions Copyright (c) 1987 Regents of the University of California.
## All rights reserved.
##
## Redistribution and use in source and binary forms are permitted
## provided that the above copyright notice and this paragraph are
## duplicated in all such forms and that any documentation,
## advertising materials, and other materials related to such
## distribution and use acknowledge that the software was developed
## by the University of California, Berkeley. The name of the
## University may not be used to endorse or promote products derived
## from this software without specific prior written permission.
## THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
## IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
## WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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#
# @(#)mkdep.sh 5.12 (Berkeley) 6/30/88
#
# We now use whatever path is already set by the invoker
#PATH=/bin:/usr/bin:/usr/ucb
#export PATH
set -e # exit immediately if any errors occur
MAKE=Makefile # default makefile name is "Makefile"
NOSLASH="no" # by default, / dependencies are included
SRCDIR=""
SED=cat
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: ${CC=cc} # use cc by default
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# 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
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while :
do case "$1" in
# the -s flag removes dependencies to files that begin with /
-s)
NOSLASH=yes;
shift ;;
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# -f allows you to select a makefile name
-f)
MAKE=$2
shift; shift ;;
# -d allows you to select a VPATH directory
-d)
SRCDIR=$2
shift; shift ;;
# -c allows you to override the compiler used to generate dependencies
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-c)
MKDEP_CC=$2
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shift; shift ;;
# -m allows you to override the compiler flags used to generate
# dependencies.
-m)
MKDEP_CFLAGS=$2
shift; shift ;;
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# the -p flag produces "program: program.c" style dependencies
# so .o's don't get produced
-p)
SED='sed -e s;\.o;;'
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shift ;;
# the -l flag produces libtool compatible dependencies
-l)
SED='sed -e s;\.o:;.lo:;'
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shift ;;
# -*) shift ;;
*)
break ;;
esac
done
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if test $# = 0 ; then
echo 'usage: mkdep [-p] [-s] [-c cc] [-m flags] [-f makefile] [-d srcdir] [cppflags] file ...'
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exit 1
fi
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if test ! -w $MAKE ; then
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echo "mkdep: no writeable file \"$MAKE\""
exit 1
fi
TMP=/tmp/mkdep$$
trap 'rm -f $TMP.sed $TMP ; exit 1' 1 2 3 13 15
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cp $MAKE ${MAKE}.bak
sed -e '/DO NOT DELETE THIS LINE/,$d' < $MAKE > $TMP
cat << _EOF_ >> $TMP
# DO NOT DELETE THIS LINE -- mkdep uses it.
# DO NOT PUT ANYTHING AFTER THIS LINE, IT WILL GO AWAY.
_EOF_
# If your compiler doesn't have -M, you may be able to use -E instead.
# The preprocessor must generate lines of the form
# #.* [0-9]* "dependent file" .*
# This script will parse out the "dependent file"s to generate the
# dependency list.
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if test "x$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_
case $MKDEP_CFLAGS in
# Using regular preprocessor output
-E*)
FLAGS=""
FILES=""
for i in $files; do
case $i in
-*) FLAGS="$FLAGS $i" ;;
*) FILES="$FILES $i" ;;
esac
done
for i in $FILES; do
$MKDEP_CC $MKDEP_CFLAGS $FLAGS $i | grep '^#.*"' > $TMP.sed
awk '
BEGIN {
file = "'$i'"
n = split(file, parts, "/")
filenm = substr(parts[n], 0, length(parts[n])-1) "o"
}
{
dep = split($3, parts, "\"")
dep = parts[2]
if (dep ~ "^\./.*") dep = substr(dep, 3, length(dep)-2)
if (( noslash == "yes") && (dep ~ /^\// )) continue
if (deps[dep] == 0) printf "%s: %s\n", filenm, dep
deps[dep] = 1
}' noslash="$NOSLASH" $TMP.sed >> $TMP
done
;;
*)
# Using -M or some other specific dependency-generating option
$MKDEP_CC $MKDEP_CFLAGS $files | \
sed -e 's; \./; ;g' -e 's/ :/:/' | \
$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.)
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awk '
$1 ~ /:$/ {
filenm=$1
dep=substr($0, length(filenm)+1)
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}
$1 !~ /:$/ {
dep=$0
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}
/.*/ {
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if ( length(filenm) < 2 ) next
if ( filenm ~ /:.*:$/ ) next
split(dep, depends, " ")
for(d in depends) {
dfile = depends[d]
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if ( length(dfile) < 2 ) continue
if ( dfile ~ /:/ ) continue
if (( noslash == "yes") && (dfile ~ /^\// )) continue
rec = filenm " " dfile
print rec
}
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}
' noslash="$NOSLASH" $TMP.sed >> $TMP
;;
esac
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cat << _EOF_ >> $TMP
# IF YOU PUT ANYTHING HERE IT WILL GO AWAY
_EOF_
# copy to preserve permissions
cp $TMP $MAKE
rm -f ${MAKE}.bak $TMP.sed $TMP
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exit 0