Move C_SWITCH_MACHINE, C_SWITCH_SYSTEM from cpp to autoconf.

* configure.in (C_SWITCH_MACHINE, C_SWITCH_SYSTEM): New output
variables, replacing c_switch_machine, c_switch_system.

* src/s/aix4-2.h (C_SWITCH_SYSTEM):
* src/m/alpha.h (C_SWITCH_MACHINE):
Move to configure.in.
* src/Makefile.in (C_SWITCH_MACHINE, C_SWITCH_SYSTEM):
New variables, set by configure.
(ALL_CFLAGS): Use $C_SWITCH_MACHINE and $C_SWITCH_SYSTEM in place of
$c_switch_machine and $c_switch_system.

* lib-src/Makefile.in: Use @C_SWITCH_SYSTEM@, @C_SWITCH_MACHINE@
rather than @c_switch_system@, @c_switch_machine@.

1 files changed, 0 insertions, 10 deletions

diff --git a/src/m/alpha.h b/src/m/alpha.h
index 80f9d6c02fe..ec0ed92e24a 100644
--- a/src/m/alpha.h
+++ b/src/m/alpha.h
@@ -77,16 +77,6 @@ NOTE-END
 /* #define SYSTEM_MALLOC */
 
 #ifdef __ELF__
-/* With ELF, make sure that all common symbols get allocated to in the
-   data section.  Otherwise, the dump of temacs may miss variables in
-   the shared library that have been initialized.  For example, with
-   GNU libc, __malloc_initialized would normally be resolved to the
-   shared library's .bss section, which is fatal.  */
-# ifdef __GNUC__
-#  define C_SWITCH_MACHINE      -fno-common
-# else
-#  error What gives?  Fix me if DEC Unix supports ELF now.
-# endif
 
 #undef UNEXEC
 #define UNEXEC unexelf.o