2002-09-11 Jeff Johnston <jjohnstn@redhat.com>

        * acinclude.m4 (enable-newlib-mb): Change check to
        default newlib_mb variable to empty string rather than "no".
        * configure.host: Remove hard-coding of -DMB_CAPABLE for
        x86-linux and Cygwin.  Add code to check for newlib_mb
        being unset in which case set to "yes" for x86-linux and
        Cygwin.  Change check for newlib_mb being "yes" to allow
        for an empty string.
        * configure.in (_MB_LEN_MAX): New AC_DEFINE.
        * newlib.hin (_MB_LEN_MAX): New define to configure.
        * aclocal.m4: Regenerated.
        * configure: Ditto.
        * libc/include/limits.h: New file.
        * libc/sys/linux/include/limits.h: Ditto.
        * doc/aclocal.m4 doc/configure libc/aclocal.m4
          libc/configure libc/machine/aclocal.m4
          libc/machine/configure libc/machine/a29k/aclocal.m4
          libc/machine/a29k/configure libc/machine/arm/aclocal.m4
          libc/machine/arm/configure libc/machine/d10v/aclocal.m4
          libc/machine/d10v/configure libc/machine/d30v/aclocal.m4
          libc/machine/d30v/configure libc/machine/fr30/aclocal.m4
          libc/machine/fr30/configure libc/machine/frv/aclocal.m4
          libc/machine/frv/configure libc/machine/h8300/aclocal.m4
          libc/machine/h8300/configure libc/machine/h8500/aclocal.m4
          libc/machine/h8500/configure libc/machine/hppa/aclocal.m4
          libc/machine/hppa/configure libc/machine/i386/aclocal.m4
          libc/machine/i386/configure libc/machine/i960/aclocal.m4
          libc/machine/i960/configure libc/machine/m32r/aclocal.m4
          libc/machine/m32r/configure libc/machine/m68hc11/aclocal.m4
          libc/machine/m68hc11/configure libc/machine/m68k/aclocal.m4
          libc/machine/m68k/configure libc/machine/m88k/aclocal.m4
          libc/machine/m88k/configure libc/machine/mips/aclocal.m4
          libc/machine/mips/configure libc/machine/mn10200/aclocal.m4
          libc/machine/mn10200/configure libc/machine/mn10300/aclocal.m4
          libc/machine/mn10300/configure libc/machine/necv70/aclocal.m4
          libc/machine/necv70/configure libc/machine/powerpc/aclocal.m4
          libc/machine/powerpc/configure libc/machine/sh/aclocal.m4
          libc/machine/sh/configure libc/machine/sparc/aclocal.m4
          libc/machine/sparc/configure libc/machine/tic80/aclocal.m4
          libc/machine/tic80/configure libc/machine/v850/aclocal.m4
          libc/machine/v850/configure libc/machine/w65/aclocal.m4
          libc/machine/w65/configure libc/machine/xscale/aclocal.m4
          libc/machine/xscale/configure
          libc/machine/xstormy16/aclocal.m4
          libc/machine/xstormy16/configure libc/machine/z8k/aclocal.m4
          libc/machine/z8k/configure libc/sys/aclocal.m4
          libc/sys/configure libc/sys/a29khif/aclocal.m4
          libc/sys/a29khif/configure libc/sys/arc/aclocal.m4
          libc/sys/arc/configure libc/sys/arm/aclocal.m4
          libc/sys/arm/configure libc/sys/cygwin/aclocal.m4
          libc/sys/cygwin/configure libc/sys/d10v/aclocal.m4
          libc/sys/d10v/configure libc/sys/decstation/aclocal.m4
          libc/sys/decstation/configure libc/sys/go32/aclocal.m4
          libc/sys/go32/configure libc/sys/h8300hms/aclocal.m4
          libc/sys/h8300hms/configure libc/sys/h8500hms/aclocal.m4
          libc/sys/h8500hms/configure libc/sys/idt/aclocal.m4
          libc/sys/idt/configure libc/sys/linux/aclocal.m4
          libc/sys/linux/configure libc/sys/linux/machine/aclocal.m4
          libc/sys/linux/machine/configure
          libc/sys/linux/machine/i386/aclocal.m4
          libc/sys/linux/machine/i386/configure
          libc/sys/m88kbug/aclocal.m4 libc/sys/m88kbug/configure
          libc/sys/mmixware/aclocal.m4 libc/sys/mmixware/configure
          libc/sys/netware/aclocal.m4 libc/sys/netware/configure
          libc/sys/rtems/aclocal.m4 libc/sys/rtems/configure
          libc/sys/sh/aclocal.m4 libc/sys/sh/configure
          libc/sys/sparc64/aclocal.m4 libc/sys/sparc64/configure
          libc/sys/sun4/aclocal.m4 libc/sys/sun4/configure
          libc/sys/sysmec/aclocal.m4 libc/sys/sysmec/configure
          libc/sys/sysnec810/aclocal.m4 libc/sys/sysnec810/configure
          libc/sys/sysnecv850/aclocal.m4 libc/sys/sysnecv850/configure
          libc/sys/sysvi386/aclocal.m4 libc/sys/sysvi386/configure
          libc/sys/sysvnecv70/aclocal.m4 libc/sys/sysvnecv70/configure
          libc/sys/tic80/aclocal.m4 libc/sys/tic80/configure
          libc/sys/w65/aclocal.m4 libc/sys/w65/configure
          libc/sys/z8ksim/aclocal.m4 libc/sys/z8ksim/configure
          libm/aclocal.m4 libm/configure: Regenerated.

1 files changed, 13 insertions, 4 deletions

diff --git a/newlib/configure.host b/newlib/configure.host
index 28debde43..03d45faac 100644
--- a/newlib/configure.host
+++ b/newlib/configure.host
@@ -227,9 +227,18 @@ if [ "${newlib_multithread}" = "no" ] ; then
 	newlib_cflags="${newlib_cflags} -D__SINGLE_THREAD__"
 fi
 
-# Enable multibyte support if requested.
+# Enable multibyte support if requested or it is defaulted
+# for target.
 
-if [ "${newlib_mb}" = "yes" ] ; then
+if [ "x${newlib_mb}" = "x" ]; then
+	case "${host}" in
+	  i[3456]86-pc-linux-*|*-*-cygwin*)
+		newlib_mb=yes
+		;;
+	esac
+fi
+
+if [ "x${newlib_mb}" = "xyes" ] ; then
 	newlib_cflags="${newlib_cflags} -DMB_CAPABLE"
 fi
 
@@ -330,7 +339,7 @@ case "${host}" in
 	newlib_cflags="${newlib_cflags} -Wall"
 	newlib_cflags="${newlib_cflags} -D_I386MACH_ALLOW_HW_INTERRUPTS"
 	newlib_cflags="${newlib_cflags} -D_LOOSE_KERNEL_NAMES -DHAVE_FCNTL"
-	newlib_cflags="${newlib_cflags} -DWANT_IO_POS_ARGS -DMB_CAPABLE"
+	newlib_cflags="${newlib_cflags} -DWANT_IO_POS_ARGS"
 	# --- Required when building a shared library ------------------------
 	newlib_cflags="${newlib_cflags} -fPIC -D_I386MACH_NEED_SOTYPE_FUNCTION"
 	# --- The three lines below are optional ------------------------------
@@ -413,7 +422,7 @@ esac
 
 case "${host}" in
   *-*-cygwin*)
-	newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DSIGNAL_PROVIDED -DWANT_IO_LONG_DBL -DWANT_PRINTF_LONG_LONG -D_COMPILING_NEWLIB -DHAVE_FCNTL -DMALLOC_PROVIDED -DMB_CAPABLE"
+	newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DSIGNAL_PROVIDED -DWANT_IO_LONG_DBL -DWANT_PRINTF_LONG_LONG -D_COMPILING_NEWLIB -DHAVE_FCNTL -DMALLOC_PROVIDED"
 	syscall_dir=syscalls
 	;;
 # RTEMS supplies its own versions of some routines: