X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=build%2Fmkdep;h=4384b2853f57e1abf2dd3d052d98305c7e8a7fd7;hb=f72dbc212fb1621896af98592567f87f003a3a72;hp=6620fbfe8f940ae7fe07595cb840e59375194820;hpb=f3fb0c74a6ed6206912a425daf324edfca6cf3d6;p=openldap

diff --git a/build/mkdep b/build/mkdep
index 6620fbfe8f..4384b2853f 100755
--- a/build/mkdep
+++ b/build/mkdep
@@ -1,5 +1,10 @@
-#!/bin/sh -
+#! /bin/sh -
+# $OpenLDAP$
+## Copyright 1998-2002 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.
 #
@@ -25,10 +30,15 @@ set -e				# exit immediately if any errors occur
 
 MAKE=Makefile			# default makefile name is "Makefile"
 NOSLASH="no"			# by default, / dependencies are included
-CC=${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 /
@@ -46,9 +56,15 @@ while :
 			SRCDIR=$2
 			shift; shift ;;
 
-		# -c allows you to select a compiler to use (default is cc)
+		# -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
@@ -57,7 +73,6 @@ while :
 			SED='sed -e s;\.o;;'
 			shift ;;
 
-
 		# the -l flag produces libtool compatible dependencies
 		-l)
 			SED='sed -e s;\.o:;.lo:;'
@@ -70,19 +85,19 @@ while :
 	esac
 done
 
-if [ $# = 0 ] ; then
-	echo 'usage: mkdep [-p] [-s] [-c cc] [-f makefile] [-d srcdir] [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
 
@@ -94,13 +109,11 @@ cat << _EOF_ >> $TMP
 
 _EOF_
 
-# If your compiler doesn't have -M, add it.  If you can't, the next two
-# lines will try and replace the "cc -M".  The real problem is that this
-# hack can't deal with anything that requires a search path, and doesn't
-# even try for anything using bracket (<>) syntax.
-#
-# egrep '^#include[ 	]*".*"' /dev/null $* |
-# sed -e 's/:[^"]*"\([^"]*\)".*/: \1/' -e 's/\.c/.o/' |
+# 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.
 
 if test "x$SRCDIR" = "x" ; then
 	files=$*
@@ -115,40 +128,80 @@ else
 			files="$files $i"
 		fi
 	done
-	CC="$CC -I$SRCDIR"
+
+	MKDEP_CFLAGS="$MKDEP_CFLAGS -I$SRCDIR"
 fi
 
 cat << _EOF_ >> $TMP
 
 #
 # files: $*
-# command: $CC -M $files
+# command: $MKDEP_CC $MKDEP_CFLAGS $files
 #
 
 _EOF_
 
-$CC -M $files | \
-	sed -e 's; \./; ;g' | \
-	$SED | \
+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 | egrep '^#.*"' > $TMP.sed
+awk '
+BEGIN {
+	file = "'$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.)
 awk '
-$1 ~ /:/ {
-	filenm=$1;
-	dep=substr($0, length(filenm)+1);
+$1 ~ /:$/ {
+	filenm=$1
+	dep=substr($0, length(filenm)+1)
 }
-$1 !~ /:/ {
-	dep=$0;
+$1 !~ /:$/ {
+	dep=$0
 }
 /.*/ {
-	split(dep, depends, " ");
+	if ( length(filenm) < 2 ) next
+	if ( filenm ~ /:.*:$/ ) next
+	split(dep, depends, " ")
 	for(d in depends) {
-		dfile = depends[d];
-		if (( noslash == "yes") && (dfile ~ /^\// )) next
+		dfile = depends[d]
 		if ( length(dfile) < 2 ) continue
-		rec = filenm " " dfile;
-		print rec;
+		if ( dfile ~ /:/ ) continue
+		if (( noslash == "yes") && (dfile ~ /^\// )) continue
+		rec = filenm " " dfile
+		print rec
 	}
-    }
-' noslash="$NOSLASH" >> $TMP
+}
+' noslash="$NOSLASH" $TMP.sed >> $TMP
+	;;
+esac
 
 
 cat << _EOF_ >> $TMP
@@ -158,5 +211,5 @@ _EOF_
 
 # copy to preserve permissions
 cp $TMP $MAKE
-rm -f ${MAKE}.bak $TMP
+rm -f ${MAKE}.bak $TMP.sed $TMP
 exit 0