2010-05-10 Glenn Morris <rgm@gnu.org>
+ * Makefile.in (LIBS_SYSTEM): Set using configure, not cpp.
+ (LIBS_SYSTEM) [MSDOS]: Reset with MSDOS_LIBS_SYSTEM.
+ (LIBES): Use LIBS_SYSTEM as a variable.
+ * s/msdos.h (LIBS_SYSTEM): Rename to MSDOS_LIBS_SYSTEM. Always define.
+ * s/aix4-2.h (LIBS_SYSTEM):
+ * s/freebsd.h (LIBS_SYSTEM):
+ * s/hpux10-20.h (LIBS_SYSTEM):
+ * s/sol2-6.h (LIBS_SYSTEM):
+ * s/unixware.h (LIBS_SYSTEM):
+ Move to configure.
+
* s/aix4-2.h (MAIL_USE_LOCKF):
* s/bsd-common.h (MAIL_USE_FLOCK):
* s/darwin.h (MAIL_USE_FLOCK):