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Improve backward compatibility.

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make(1) uses sysctlbyname() to find out if it is running on a PC98
machine. This check has been added on 1998/9/9. The MIB variable was
added on 1998/8/31. At that time __FreeBSD_version was 300003. So,
only perform the check *if* __FreeBSD_version is defined and if it's
greater than 300003.

For the record: sysctlbyname was added on 1997/5/30 so this change
automaticly handles that...
This commit is contained in:
Marcel Moolenaar 1999-11-23 10:35:24 +00:00
parent 5f644e4c72
commit 494b6f4cba
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=53631
1 changed files with 5 additions and 1 deletions
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6
usr.bin/make/main.c
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@ -516,12 +516,16 @@ main(argc, argv)
}
#endif
#if defined(__i386__)
#if defined(__i386__) && defined(__FreeBSD_version) && \
__FreeBSD_version > 300003
/*
* PC-98 kernel sets the `i386' string to the utsname.machine and
* it cannot be distinguished from IBM-PC by uname(3). Therefore,
* we check machine.ispc98 and adjust the machine variable before
* using usname(3) below.
* NOTE: machdep.ispc98 was defined on 1998/8/31. At that time,
* __FreeBSD_version was defined as 300003. So, this check can
* safely be done with any kernel with version > 300003.
*/
if (!machine) {
int ispc98;