(C_SWITCH_MACHINE): Get this from autoconf.

(ALL_CFLAGS, LINK_CFLAGS, CPP_CFLAGS): Use C_SWITCH_MACHINE.

lib-src/Makefile.in

@@ -18,6 +18,7 @@ CC=@CC@
 CFLAGS=@CFLAGS@
 ALLOCA=@ALLOCA@
 C_SWITCH_SYSTEM=@c_switch_system@
+C_SWITCH_MACHINE=@c_switch_machine@
 LOADLIBES=@libsrc_libs@
 YACC=@YACC@
 version=@version@
@@ -97,11 +98,11 @@ SOURCES = COPYING ChangeLog Makefile.in README aixcc.lex emacs.csh \
 ### Some other files - those shared with other GNU utilities - need
 ### HAVE_CONFIG_H #defined before they know they can take advantage of
 ### the information in ../src/config.h.
-ALL_CFLAGS = ${C_SWITCH_SYSTEM} -Demacs -DHAVE_CONFIG_H \
+ALL_CFLAGS = ${C_SWITCH_SYSTEM} ${C_SWITCH_MACHINE} -Demacs -DHAVE_CONFIG_H \
    -I. -I../src -I${srcdir} -I${srcdir}/../src ${LDFLAGS} ${CPPFLAGS} ${CFLAGS}
-LINK_CFLAGS = ${C_SWITCH_SYSTEM} -Demacs -DHAVE_CONFIG_H \
+LINK_CFLAGS = ${C_SWITCH_SYSTEM} ${C_SWITCH_MACHINE} -Demacs -DHAVE_CONFIG_H \
    -I. -I../src -I${srcdir} -I${srcdir}/../src ${LDFLAGS} ${CFLAGS}
-CPP_CFLAGS = ${C_SWITCH_SYSTEM} -Demacs -DHAVE_CONFIG_H \
+CPP_CFLAGS = ${C_SWITCH_SYSTEM} ${C_SWITCH_MACHINE} -Demacs -DHAVE_CONFIG_H \
    -I. -I../src -I${srcdir} -I${srcdir}/../src ${CPPFLAGS} ${CFLAGS}
 # This is the default compilation command.
 # But we should never rely on it, because some make version