That's not true. You can use generated files in another Tupfile. It would
severely limit the usefulness of tup if that weren't possible. In fact, I
do just that in a fairly large project all the time. Here is a small
example:
bash$ ls -l a b
a:
total 24
-rw-r--r-- 1 ajensen staff 165 Jan 27 21:53 ClassA.cc
-rw-r--r-- 1 ajensen staff 103 Jan 27 21:53 ClassA.h
-rw-r--r-- 1 ajensen staff 44 Jan 27 21:36 Tupfile
b:
total 16
-rw-r--r-- 1 ajensen staff 80 Jan 27 21:47 Tupfile
-rw-r--r-- 1 ajensen staff 141 Jan 27 21:52 main.cc
bash$ for fn in a/* b/*; do echo "================ $fn ================";
cat $fn; done
================ a/ClassA.cc ================
#include "ClassA.h"
#include <iostream>
ClassA::ClassA()
: member_(9) {
}
void ClassA::doit() {
std::cout << "ClassA: value = " << member_ << std::endl;
}
================ a/ClassA.h ================
class ClassA {
public:
ClassA();
void doit();
private:
int member_;
};
================ a/Tupfile ================
: foreach *.cc |> g++ -c -o %B.o %f |> %B.o
================ b/Tupfile ================
: foreach *.cc |> g++ -c %f -o %o |> %B.o
: *.o ../a/*.o |> g++ -o %o %f |> foo
================ b/main.cc ================
#include "../a/ClassA.h"
#include <iostream>
int
main(int argc, char** argv) {
printf("Hello, World!\n");
ClassA a;
a.doit();
}
bash$ tup
[ tup ] [0.000s] Scanning filesystem...
[ tup ] [0.018s] Reading in new environment variables...
[ tup ] [0.019s] Parsing Tupfiles...
1) [0.005s] a
2) [0.007s] b
[ ] 100%
[ tup ] [0.064s] No files to delete.
[ tup ] [0.064s] Generating .gitignore files...
[ tup ] [0.064s] Executing Commands...
1) [0.502s] b: g++ -c main.cc -o main.o
2) [0.518s] a: g++ -c -o ClassA.o ClassA.cc
3) [0.084s] b: g++ -o foo main.o ../a/ClassA.o
[ ] 100%
[ tup ] [0.668s] Updated.
bash$ b/foo
Hello, World!
ClassA: value = 9
bash$
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