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@.

4 files changed, 19 insertions, 21 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index ab5780106b7..33d550e7824 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,13 @@
+2010-05-04  Glenn Morris  <rgm@gnu.org>
+
+        * s/aix4-2.h (C_SWITCH_SYSTEM):
+        * m/alpha.h (C_SWITCH_MACHINE):
+        Move to configure.in.
+        * 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.
+
 2010-05-04  Dan Nicolaescu  <dann@ics.uci.edu>
 
         * s/hpux10-20.h (LIB_STANDARD): New definition.
diff --git a/src/Makefile.in b/src/Makefile.in
index a7ad10446e2..220eac61c1f 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -70,6 +70,11 @@ OTHER_FILES = @OTHER_FILES@
 
 CRT_DIR=@CRT_DIR@
 
+## Machine-specific CFLAGS.
+C_SWITCH_MACHINE=@C_SWITCH_MACHINE@
+## System-specific CFLAGS.
+C_SWITCH_SYSTEM=@C_SWITCH_SYSTEM@
+
 LIBTIFF=@LIBTIFF@
 LIBJPEG=@LIBJPEG@
 LIBPNG=@LIBPNG@
@@ -232,7 +237,7 @@ shared=no
 
 /* C_SWITCH_X_SITE must come before C_SWITCH_X_SYSTEM
    since it may have -I options that should override those two.  */
-ALL_CFLAGS=-Demacs -DHAVE_CONFIG_H $(MYCPPFLAGS) -I. -I${srcdir} @c_switch_machine@ @c_switch_system@ @C_SWITCH_X_SITE@ @C_SWITCH_X_SYSTEM@ ${CFLAGS_SOUND} ${RSVG_CFLAGS} ${DBUS_CFLAGS} ${GCONF_CFLAGS} ${CFLAGS} @FREETYPE_CFLAGS@ @FONTCONFIG_CFLAGS@ @LIBOTF_CFLAGS@ @M17N_FLT_CFLAGS@ ${DEPFLAGS}
+ALL_CFLAGS=-Demacs -DHAVE_CONFIG_H $(MYCPPFLAGS) -I. -I${srcdir} ${C_SWITCH_MACHINE} ${C_SWITCH_SYSTEM} @C_SWITCH_X_SITE@ @C_SWITCH_X_SYSTEM@ ${CFLAGS_SOUND} ${RSVG_CFLAGS} ${DBUS_CFLAGS} ${GCONF_CFLAGS} ${CFLAGS} @FREETYPE_CFLAGS@ @FONTCONFIG_CFLAGS@ @LIBOTF_CFLAGS@ @M17N_FLT_CFLAGS@ ${DEPFLAGS}
 ALL_OBJC_CFLAGS=$(ALL_CFLAGS) @GNU_OBJC_CFLAGS@
 
 .SUFFIXES: .m
@@ -968,7 +973,7 @@ window.o: window.c indent.h commands.h frame.h window.h buffer.h termchar.h \
    keymap.h blockinput.h atimer.h systime.h $(INTERVALS_H) \
    xterm.h w32term.h nsterm.h nsgui.h lisp.h $(config_h)
 xdisp.o: xdisp.c macros.h commands.h process.h indent.h buffer.h dispextern.h \
-   coding.h termchar.h frame.h window.h disptab.h termhooks.h character.h     \
+   coding.h termchar.h frame.h window.h disptab.h termhooks.h character.h \
    charset.h lisp.h $(config_h) keyboard.h $(INTERVALS_H) region-cache.h \
    xterm.h w32term.h nsterm.h nsgui.h msdos.h composite.h fontset.h ccl.h \
    blockinput.h atimer.h systime.h keymap.h font.h
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
diff --git a/src/s/aix4-2.h b/src/s/aix4-2.h
index 2c7f8c06157..f6ed94828d4 100644
--- a/src/s/aix4-2.h
+++ b/src/s/aix4-2.h
@@ -1,6 +1,6 @@
 /*
-Copyright (C) 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
-  Free Software Foundation, Inc.
+Copyright (C) 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010  Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -118,13 +118,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* AIX doesn't define this.  */
 #define unix 1
 
-#ifndef __GNUC__
-/* Some programs in src produce warnings saying certain subprograms
-   are to comples and need a MAXMEM value greater than 2000 for
-   additional optimization.  --nils@exp-math.uni-essen.de */
-#define C_SWITCH_SYSTEM -ma -qmaxmem=4000
-#endif
-
 /* string.h defines rindex as a macro, at least with native cc, so we
    lose declaring char * rindex without this.
    It is just a guess which versions of AIX need this definition.  */