scc

simple c99 compiler
git clone git://git.simple-cc.org/scc
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0085-rule.sh (308B)

      1 #!/bin/sh
      2 
      3 trap 'rm -f $tmp1 $tmp2 t1.c t?.o t2' EXIT INT TERM HUP QUIT
      4 
      5 tmp1=tmp1.$$
      6 tmp2=tmp2.$$
      7 
      8 cat > $tmp2 <<EOF
      9 t1
     10 t2
     11 t2
     12 EOF
     13 
     14 echo Hello > t1.c
     15 
     16 scc-make -f- <<'EOF' > $tmp1 2>&1
     17 .c.o:
     18 	@echo $* > $@
     19 
     20 all: t1.o t2.o t2
     21 	@cat t1.o t2.o t2
     22 
     23 t2.o:
     24 	@echo $* > $@
     25 
     26 t2:
     27 	@echo $* > $@
     28 EOF
     29 
     30 diff $tmp1 $tmp2