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Diffstat (limited to 'mcon/U/i_time.U')
| -rw-r--r-- | mcon/U/i_time.U | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/mcon/U/i_time.U b/mcon/U/i_time.U new file mode 100644 index 0000000..bd88567 --- /dev/null +++ b/mcon/U/i_time.U @@ -0,0 +1,171 @@ +?RCS: $Id: i_time.U 167 2013-05-08 17:58:00Z rmanfredi $ +?RCS: +?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi +?RCS: +?RCS: You may redistribute only under the terms of the Artistic License, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic License; a copy of which may be found at the root +?RCS: of the source tree for dist 4.0. +?RCS: +?RCS: $Log: i_time.U,v $ +?RCS: Revision 3.0 1993/08/18 12:08:45 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?X: +?X: This unit finds which "time" include to use. If 'timezone' is used by the +?X: program, we also try to find which header should be included. Eventually, +?X: we look for <sys/select.h> if I_SYSSELECT is used, to get struct timeval. +?X: +?MAKE:i_time i_systime i_systimek timeincl: cat cc ccflags contains rm \ + echo n c +i_sysselct Findhdr +?MAKE: -pick add $@ %< +?S:i_time: +?S: This variable conditionally defines I_TIME, which indicates +?S: to the C program that it should include <time.h>. +?S:. +?S:i_systime: +?S: This variable conditionally defines I_SYS_TIME, which indicates +?S: to the C program that it should include <sys/time.h>. +?S:. +?S:i_systimek: +?S: This variable conditionally defines I_SYS_TIME_KERNEL, which +?S: indicates to the C program that it should include <sys/time.h> +?S: with KERNEL defined. +?S:. +?S:timeincl: +?S: This variable holds the full path of the included time header(s). +?S:. +?C:I_TIME (USE_TIME_H): +?C: This symbol, if defined, indicates to the C program that it should +?C: include <time.h>. +?C:. +?C:I_SYS_TIME (I_SYSTIME USE_SYS_TIME_H NO_TIME_WITH_SYS_TIME): +?C: This symbol, if defined, indicates to the C program that it should +?C: include <sys/time.h>. +?C:. +?C:I_SYS_TIME_KERNEL (I_SYSTIMEKERNEL): +?C: This symbol, if defined, indicates to the C program that it should +?C: include <sys/time.h> with KERNEL defined. +?C:. +?H:#$i_time I_TIME /**/ +?H:#$i_systime I_SYS_TIME /**/ +?H:#$i_systimek I_SYS_TIME_KERNEL /**/ +?H:. +?W::timezone +?T:xselect flags sysselect s_timeval s_timezone +?LINT:change i_sysselct +: see if we should include time.h, sys/time.h, or both +echo " " +echo "Testing to see if we should include <time.h>, <sys/time.h> or both." >&4 +$echo $n "I'm now running the test program...$c" +$cat >try.c <<'EOCP' +#include <sys/types.h> +#ifdef I_TIME +#include <time.h> +#endif +#ifdef I_SYSTIME +#ifdef SYSTIMEKERNEL +#define KERNEL +#endif +#include <sys/time.h> +#endif +#ifdef I_SYSSELECT +#include <sys/select.h> +#endif +int main(void) +{ + struct tm foo; +#ifdef S_TIMEVAL + struct timeval bar; +#endif +#ifdef S_TIMEZONE + struct timezone tzp; +#endif + if (foo.tm_sec == foo.tm_sec) + return 0; +#ifdef S_TIMEVAL + if (bar.tv_sec == bar.tv_sec) + return 0; +#endif + return 1; +} +EOCP +flags='' +@if I_SYSSELECT +if $contains 'timeval.*{' `./findhdr sys/select.h` >/dev/null 2>&1; then + xselect='-DI_SYSSELECT' +else + xselect='' +fi +@end +@if timezone +for s_timezone in '-DS_TIMEZONE' ''; do +@else +s_timezone='' +@end +?X: Every package is given a try with 'struct timeval' +@if I_SYSSELECT +for sysselect in $xselect ''; do +@else +sysselect='' +@end +for s_timeval in '-DS_TIMEVAL' ''; do +for i_systimek in '' '-DSYSTIMEKERNEL'; do +for i_time in '' '-DI_TIME'; do +for i_systime in '-DI_SYSTIME' ''; do + case "$flags" in + '') $echo $n ".$c" + if $cc $ccflags \ + $i_time $i_systime $i_systimek $sysselect $s_timeval $s_timezone \ + -o try try.c >/dev/null 2>&1 ; then + set X $i_time $i_systime $i_systimek $sysselect $s_timeval + shift + flags="$*" + echo " " + $echo $n "Succeeded with $flags$c" + fi + ;; + esac +done +done +done +done +@if I_SYSSELECT +done +@end +@if timezone +done +@end +timeincl='' +echo " " +case "$flags" in +*SYSTIMEKERNEL*) i_systimek="$define" + timeincl=`./findhdr sys/time.h` + echo "We'll include <sys/time.h> with KERNEL defined." >&4;; +*) i_systimek="$undef";; +esac +case "$flags" in +*I_TIME*) i_time="$define" + timeincl=`./findhdr time.h`" $timeincl" + echo "We'll include <time.h>." >&4;; +*) i_time="$undef";; +esac +case "$flags" in +*I_SYSTIME*) i_systime="$define" + timeincl=`./findhdr sys/time.h`" $timeincl" + echo "We'll include <sys/time.h>." >&4;; +*) i_systime="$undef";; +esac +@if I_SYSSELECT +case "$flags" in +*I_SYSSELECT*) i_sysselct="$define" + timeincl=`./findhdr sys/select.h`" $timeincl" + echo "We'll also include <sys/select.h> to get struct timeval." >&4;; +*) case "$i_sysselct" in + '') i_sysselct="$undef";; + esac +esac +@end +$rm -f try.c try + |