svn commit: samba r22307 - in branches/SAMBA_4_0/source/script: .

[metze at samba.org]

Author: metze
Date: 2007-04-17 13:48:12 +0000 (Tue, 17 Apr 2007)
New Revision: 22307

WebSVN: http://websvn.samba.org/cgi-bin/viewcvs.cgi?view=rev&root=samba&rev=22307

Log:
when no lex or yacc is found:
- just touch $DEST if it's already there and newer than $SRC
- touch $DEST if it's already there but older than $SRC and print warnings
  to stderr
- otherwise return an error

when lex or yacc is found:
- just touch $DEST if it's already there and newer than $SRC
- otherwise regenerate $DEST from $SRC using lex or yacc


I don't like that every 'make' tries to regenerate because the timestamp
of $DEST is never updated...

metze
Modified:
   branches/SAMBA_4_0/source/script/lex_compile.sh
   branches/SAMBA_4_0/source/script/yacc_compile.sh


Changeset:
Modified: branches/SAMBA_4_0/source/script/lex_compile.sh
===================================================================
--- branches/SAMBA_4_0/source/script/lex_compile.sh	2007-04-17 13:14:33 UTC (rev 22306)
+++ branches/SAMBA_4_0/source/script/lex_compile.sh	2007-04-17 13:48:12 UTC (rev 22307)
@@ -8,11 +8,23 @@
 file=`basename $SRC`
 base=`basename $SRC .l`
 if [ -z "$LEX" ]; then
-	echo "lex not found - not regenerating $DEST"
-	exit;
+	# if $DEST is more recent than $SRC, we can just touch
+	# otherwise we touch but print out warnings
+	if [ -r $DEST ]; then
+		if [ x`find $SRC -newer $DEST -print` = x$SRC ]; then
+			echo "warning: lex not found - cannot generate $SRC => $DEST" >&2
+			echo "warning: lex not found - only updating the timestamp of $DEST" >&2
+		fi
+		touch $DEST;
+		exit;
+	fi
+	echo "error: lex not found - cannot generate $SRC => $DEST" >&2
+	exit 1;
 fi
+# if $DEST is more recent than $SRC, we can just touch
 if [ -r $DEST ]; then
 	if [ x`find $SRC -newer $DEST -print` != x$SRC ]; then
+		touch $DEST;
 		exit;
 	fi
 fi

Modified: branches/SAMBA_4_0/source/script/yacc_compile.sh
===================================================================
--- branches/SAMBA_4_0/source/script/yacc_compile.sh	2007-04-17 13:14:33 UTC (rev 22306)
+++ branches/SAMBA_4_0/source/script/yacc_compile.sh	2007-04-17 13:48:12 UTC (rev 22307)
@@ -8,18 +8,30 @@
 file=`basename $SRC`
 base=`basename $SRC .y`
 if [ -z "$YACC" ]; then
-	echo "yacc not found"
-	exit;
+	# if $DEST is more recent than $SRC, we can just touch
+	# otherwise we touch but print out warnings
+	if [ -r $DEST ]; then
+		if [ x`find $SRC -newer $DEST -print` = x$SRC ]; then
+			echo "warning: yacc not found - cannot generate $SRC => $DEST" >&2
+			echo "warning: yacc not found - only updating the timestamp of $DEST" >&2
+		fi
+		touch $DEST;
+		exit;
+	fi
+	echo "error: yacc not found - cannot generate $SRC => $DEST" >&2
+	exit 1;
 fi
+# if $DEST is more recent than $SRC, we can just touch
 if [ -r $DEST ]; then
 	if [ x`find $SRC -newer $DEST -print` != x$SRC ]; then
+		touch $DEST;
 		exit;
 	fi
 fi
 TOP=`pwd`
 if cd $dir && $YACC -d $file; then
 	if [ -r y.tab.h -a -r y.tab.c ];then
-		echo "move files"
+		#echo "info: move files"
 		sed -e "/^#/!b" -e "/^#/ s|y\.tab\.h|$SRC|" -e "/^#/ s|\"$base.y|\"$SRC|"  y.tab.h > $base.h
 		sed -e "/^#/ s|y\.tab\.c|$SRC|" -e "/^#/ s|\"$base.y|\"$SRC|" y.tab.c > $base.c
 		rm -f y.tab.c y.tab.h