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author | Stefan Metzmacher <metze@samba.org> | 2007-04-17 13:48:12 +0000 |
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committer | Gerald (Jerry) Carter <jerry@samba.org> | 2007-10-10 14:51:00 -0500 |
commit | 8934c3f68e0ba949edd38673f10b9943059e4938 (patch) | |
tree | feaf571dd10bfd0e11c497ef45149b70932d4a9c /source4/script/lex_compile.sh | |
parent | 57dd182915c3e81291a3aa48bd6c6795fd00a96f (diff) | |
download | samba-8934c3f68e0ba949edd38673f10b9943059e4938.tar.gz samba-8934c3f68e0ba949edd38673f10b9943059e4938.tar.bz2 samba-8934c3f68e0ba949edd38673f10b9943059e4938.zip |
r22307: 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
(This used to be commit 10ed5c39692ff4a6b61ec9c6d046b2ee2202fc02)
Diffstat (limited to 'source4/script/lex_compile.sh')
-rwxr-xr-x | source4/script/lex_compile.sh | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/source4/script/lex_compile.sh b/source4/script/lex_compile.sh index 064bf89bea..2f9498e5ac 100755 --- a/source4/script/lex_compile.sh +++ b/source4/script/lex_compile.sh @@ -8,11 +8,23 @@ dir=`dirname $SRC` 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 |