view auto/init @ 4576:876e6b0814a5

Fixed signed integer overflows in timer code (ticket #145). Integer overflow is undefined behaviour in C and this indeed caused problems on Solaris/SPARC (at least in some cases). Fix is to subtract unsigned integers instead, and then cast result to a signed one, which is implementation-defined behaviour and used to work. Strictly speaking, we should compare (unsigned) result with the maximum value of the corresponding signed integer type instead, this will be defined behaviour. This will require much more changes though, and considered to be overkill for now.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 06 Apr 2012 23:46:09 +0000
parents d620f497c50f
children 85dea406e18f
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# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


NGX_MAKEFILE=$NGX_OBJS/Makefile
NGX_MODULES_C=$NGX_OBJS/ngx_modules.c

NGX_AUTO_HEADERS_H=$NGX_OBJS/ngx_auto_headers.h
NGX_AUTO_CONFIG_H=$NGX_OBJS/ngx_auto_config.h

NGX_AUTOTEST=$NGX_OBJS/autotest
NGX_AUTOCONF_ERR=$NGX_OBJS/autoconf.err

# STUBs
NGX_ERR=$NGX_OBJS/autoconf.err
MAKEFILE=$NGX_OBJS/Makefile


NGX_PCH=
NGX_USE_PCH=


# check the echo's "-n" option and "\c" capability

if echo "test\c" | grep c >/dev/null; then

    if echo -n test | grep n >/dev/null; then
        ngx_n=
        ngx_c=

    else
        ngx_n=-n
        ngx_c=
    fi

else
    ngx_n=
    ngx_c='\c'
fi


# create Makefile

cat << END > Makefile

default:	build

clean:
	rm -rf Makefile $NGX_OBJS
END