forks/apenwarr-redo
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Simplify autodependency examples.

Browse source 
Turns out we don't need sed to process the output of gcc -MD.  We can just
do this:

	read DEPS <filename.deps

The 'read' command in sh actually handles backslashes correctly, so we don't
have to sed them out after all.  And then a simple ${DEPS#*:} removes the
"target:" prefix from the dependency line, and we're done!
This commit is contained in:
Avery Pennarun 2011-02-21 03:57:48 -08:00
commit a2bce72255
3 changed files with 12 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

7
README.md
View file

@ -75,10 +75,9 @@ The easiest way to show it is with an example.
Create a file called default.o.do:
redo-ifchange $1.c
gcc -MD -MF $3.deps.tmp -c -o $3 $1.c
DEPS=$(sed -e "s/^$3://" -e 's/\\//g' <$3.deps.tmp)
rm -f $3.deps.tmp
redo-ifchange $DEPS
gcc -MD -MF $1.d -c -o $3 $1.c
read DEPS <$1.d
redo-ifchange ${DEPS#*:}
Create a file called myprog.do: