Added a Windows test.

run_tests.py

@@ -93,11 +93,12 @@ def run_tests():
 
 def check_file(fname):
     linenum = 0
+    is_sane = not environment.is_windows()
     for line in open(fname, 'rb').readlines():
         if b'\t' in line:
             print("File %s contains a literal tab on line %d. Only spaces are permitted." % (fname, linenum))
             sys.exit(1)
-        if b'\r' in line:
+        if is_sane and b'\r' in line:
             print("File %s contains DOS line ending on line %d. Only unix-style line endings are permitted." % (fname, linenum))
             sys.exit(1)
         linenum += 1

test cases/windows/1 basic/meson.build

@@ -0,0 +1,4 @@
+project('wintest', 'c')
+
+prog = executable('prog', 'prog.c')
+add_test('wintest', prog)

test cases/windows/1 basic/prog.c

@@ -0,0 +1,5 @@
+#include <Windows.h>
+
+int main(int argc, char **argv) {
+    return 0;
+}