Replace the entire environment of processes launched from this
launcher with the given 'environ' variable.
Typically you will build this variable by using g_listenv() to copy
the process 'environ' and using the functions g_environ_setenv(),
g_environ_unsetenv(), etc.
As an alternative, you can use g_subprocess_launcher_setenv(),
g_subprocess_launcher_unsetenv(), etc.
On UNIX, all strings in this array can be arbitrary byte strings.
On Windows, they should be in UTF-8.
Replace the entire environment of processes launched from this launcher with the given 'environ' variable.
Typically you will build this variable by using g_listenv() to copy the process 'environ' and using the functions g_environ_setenv(), g_environ_unsetenv(), etc.
As an alternative, you can use g_subprocess_launcher_setenv(), g_subprocess_launcher_unsetenv(), etc.
On UNIX, all strings in this array can be arbitrary byte strings. On Windows, they should be in UTF-8.