> * m4/dup.m4: New file.
Well, this configure-time test leads to a dialog box that notifies the user
about a crash in conftest.exe... Let me simplify the test:
2011-09-24 Bruno Haible
dup: Simplify autoconf test.
* m4/dup.m4 (gl_FUNC_DUP): Don't run a test program. In
The dup() function also crashes on MSVC 9 if an invalid argument is passed.
This new module 'dup' fixes it.
2011-09-23 Bruno Haible
New module 'dup'.
* lib/unistd.in.h (dup): Declare only if the 'dup' module is in use.
Allow replacement.
