[LyX/master] Set the default locale at startup.

[Enrico Forestieri]

commit 82faa6619239c2e57fba9128899bafe29d728e51
Author: Enrico Forestieri <for...@lyx.org>
Date:   Wed Jun 11 18:23:44 2014 +0200

    Set the default locale at startup.
    
    On startup, the default locale is "C", meaning that all system
    functions assume an ascii codeset. The environment's locale
    settings should be selected by calling setlocale(LC_ALL,"").
    This is done by Qt during the QCoreApplication initialization
    but this inizialization is never performed for batch processing
    and, as a result, LyX is not able to process files whose names
    contain non-ascii characters. This is not an issue on Windows,
    where the file names are always stored as UTF-16, so the call is
    only performed for unix-like platforms (this also includes cygwin,
    due to its own filenames management that allows using characters
    which are forbidden to native programs).

diff --git a/src/support/os_cygwin.cpp b/src/support/os_cygwin.cpp
index 92cbf15..4179d49 100644
--- a/src/support/os_cygwin.cpp
+++ b/src/support/os_cygwin.cpp
@@ -215,6 +215,9 @@ void init(int argc, char * argv[])
        argc_ = argc;
        argv_ = argv;
 
+       // Set environment's default locale
+       setlocale(LC_ALL, "");
+
        // Make sure that the TEMP variable is set
        // and sync the Windows environment.
        setenv("TEMP", "/tmp", false);
diff --git a/src/support/os_unix.cpp b/src/support/os_unix.cpp
index b85bdb2..03dfb38 100644
--- a/src/support/os_unix.cpp
+++ b/src/support/os_unix.cpp
@@ -46,6 +46,9 @@ void init(int argc, char * argv[])
 {
        argc_ = argc;
        argv_ = argv;
+
+       // Set environment's default locale
+       setlocale(LC_ALL, "");
 }