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Add (#ifdef'ed by STARTUP_LOCALE) following line to crt0.c

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(void) setlocale(LC_ALL, "");

It will be easiest way now to make national chars available
for all ctype-oriented programs at once by simple:

setenv LANG Your_National_Charset

Default case (without "LANG" environment
variable) will be fully ANSI compatible (got "C" locale).

If "LANG" variable present, extention becomes active.

Effect of this extention is great: in one time all ctype
oriented programs can accept/print national characters
without any touching source/binary code, it is big win, IMHO.

This method is fully compatible with ISO8859-* and russian koi8-r
too (in general -- with all 8-bit character sets). I think
it is very useful.
I got this idea from Xenix locale implementation.

This extention is even never compiled in, unless you set
	setenv STARTUP_LOCALE
before rebuilding crt0.c or corresponding variable in /etc/make.conf
This commit is contained in:
Andrey A. Chernov 1994-09-18 22:21:04 +00:00
parent 66415998d0
commit f32a347542
2 changed files with 12 additions and 3 deletions
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5
lib/csu/i386/Makefile
View File

@ -1,7 +1,10 @@
# from: @(#)Makefile 5.6 (Berkeley) 5/22/91 # from: @(#)Makefile 5.6 (Berkeley) 5/22/91
# $Id: Makefile,v 1.9 1994/03/09 17:12:57 nate Exp $ # $Id: Makefile,v 1.10 1994/08/22 15:13:41 bde Exp $
CFLAGS+= -DLIBC_SCCS -DDYNAMIC CFLAGS+= -DLIBC_SCCS -DDYNAMIC
.if defined(STARTUP_LOCALE)
CFLAGS+= -DSTARTUP_LOCALE
.endif
OBJS= crt0.o gcrt0.o c++rt0.o OBJS= crt0.o gcrt0.o c++rt0.o
CLEANFILES+= a.out CLEANFILES+= a.out

10
lib/csu/i386/crt0.c
View File

@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* *
* $Id: crt0.c,v 1.8 1994/02/13 20:53:11 jkh Exp $ * $Id: crt0.c,v 1.11 1994/08/05 17:53:07 wollman Exp $
*/ */
@ -39,6 +39,9 @@ extern void exit();
int _callmain(); int _callmain();
#include <sys/param.h> #include <sys/param.h>
#ifdef STARTUP_LOCALE
#include <locale.h>
#endif
#ifdef DYNAMIC #ifdef DYNAMIC
#include <sys/types.h> #include <sys/types.h>
@ -173,7 +176,10 @@ asm("eprol:");
#ifdef MCRT0 #ifdef MCRT0
atexit(_mcleanup); atexit(_mcleanup);
monstartup(&eprol, &etext); monstartup(&eprol, &etext);
#endif MCRT0 #endif /* MCRT0 */
#ifdef STARTUP_LOCALE
(void) setlocale(LC_ALL, "");
#endif
asm ("__callmain:"); /* Defined for the benefit of debuggers */ asm ("__callmain:"); /* Defined for the benefit of debuggers */
exit(main(kfp->kargc, argv, environ)); exit(main(kfp->kargc, argv, environ));