On Thursday, 28 August 2014 at 19:29:40 UTC, papaboo wrote:
My current file and module layout is
test.d
src/math/vector.d - module dragonfly.math.vector
src/math/quaternion.d - module dragonfly.math.quaternion
Compiling with
$ dmd test.d src/math/vector.d src/math/quaternion.d && ./test
works perfectly and runs the way I would expect.
I then tried to compile a library as described
http://ddili.org/ders/d.en/modules.html, so basically
$ dmd src/math/vector.d src/math/quaternion.d -lib -ofmath -w
$ dmd math.a test.d && ./test
But this fails with the following error
test.d(5): Error: module vector is in file
'dragonfly/math/vector.d' which cannot be read
I realize I placed my files in a 'src' dir instead of
'dragonfly', but shouldn't explicitly declaring the module name
in vector.d and quaternion.d fix that?
When you do `dmd math.a test.d`, you don't give dmd a file that
contains the module dragonfly.math.vector. math.a does contain
the object code, but it misses stuff like function signatures.
For this information dmd needs source files for each module.
If you change the directory structure to mirror the module
structure, dmd finds the necessary files itself.
Or you can specify all source files yourself on the command line,
along with the library file.
Since the library file already contains the object code, you can
also give dmd files that omit the function bodies. You may know
this concept from C: header files (.h). In D it's "interface
files" (.di).
