1*fb3ef04dSDag-Erling Smørgravmkdir -p outdir 2*fb3ef04dSDag-Erling Smørgravunifdef -DFOO=1 -DFOOB=42 -UBAR -ooutdir/outfile.c if1.c 3*fb3ef04dSDag-Erling Smørgrave=$? 4*fb3ef04dSDag-Erling Smørgravcat outdir/outfile.c 5*fb3ef04dSDag-Erling Smørgravrm -r outdir 6*fb3ef04dSDag-Erling Smørgravexit $e 7