I've always used separate project files on windows and linux, in order to
include different compiler symbols, in order to make projects build with
different dependencies. I've been chastised here for doing it, so I'd like to
find a better way. (Miguel and others tore apart a pull request, saying I
should never check __MONO__, if I need behavior to be different on windows and
non-windows, I need to use a runtime check. The problem is, as described below,
the runtime check can't build or run on windows, so I'd like to figure out how
it should be done).
Right now, I have a class, which is using Mono.Unix.Native, because of a method
that does this:
if (Type.GetType("Mono.Runtime") != null) {
Syscall.chmod(...);
}
When built and run on mono, works great. The problem is building and running on
windows. In order to make it build, I copied Mono.Posix.dll into the project
and referenced it, with CopyLocal = False. This way, Mono.Posix.dll doesn't get
copied to the build directory, which is good because it's already present on
mono systems, and not needed on windows systems - the only reason for it to
exist in the project is because windows can't build without it.
So it builds. But unfortunately, it won't run on windows. It throws
FileNotFoundException "Mono.Posix.dll" before evaluating the if-clause.
The workaround I've found is to create a wrapper class MonoSpecific, so the
if-clause and the Mono.Posix call are not in the same file. But this is clearly
a hack. Is there a better way?
Hello.cs:
using System;
namespace helloProject
{
static class Hello
{
static void ChangePermsIfNecessary()
{
if (Type.GetType("Mono.Runtime") != null) {
MonoSpecific.DoChmod();
}
}
}
}
MonoSpecific.cs:
using System;
using Mono.Unix.Native;
namespace helloProject
{
static class MonoSpecific
{
static void DoChmod()
{
Syscall.chmod(...);
}
}
}
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