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Test for Linux-specific sysinfo() only on Linux systems. 

Some other systems have sysinfo() with different semantics.
This commit is contained in:
Lasse Collin 2009-03-01 09:03:08 +02:00
parent cf751edfde
commit 0df9299e24
1 changed files with 19 additions and 9 deletions
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28
m4/lc_physmem.m4
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@ -54,7 +54,11 @@ main(void)
with sysctl().]) with sysctl().])
AC_MSG_RESULT([sysctl]) AC_MSG_RESULT([sysctl])
], [ ], [
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ dnl sysinfo() is Linux-specific. Some non-Linux systems have
dnl incompatible sysinfo() so we must check $host_os.
case $host_os in
linux*)
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#include <sys/sysinfo.h> #include <sys/sysinfo.h>
int int
main(void) main(void)
@ -63,12 +67,18 @@ main(void)
sysinfo(&si); sysinfo(&si);
return 0; return 0;
} }
]])], [ ]])], [
AC_DEFINE([HAVE_PHYSMEM_SYSINFO], [1], AC_DEFINE([HAVE_PHYSMEM_SYSINFO], [1],
[Define to 1 if the amount of physical memory can be detected [Define to 1 if the amount of physical memory
with sysinfo().]) can be detected with Linux sysinfo().])
AC_MSG_RESULT([sysinfo]) AC_MSG_RESULT([sysinfo])
], [ ], [
AC_MSG_RESULT([unknown]) AC_MSG_RESULT([unknown])
])])]) ])
;;
*)
AC_MSG_RESULT([unknown])
;;
esac
])])
])dnl lc_PHYSMEM ])dnl lc_PHYSMEM