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| author | Lasse Collin <lasse.collin@tukaani.org> | 2009-03-01 09:03:08 +0200 |
|---|---|---|
| committer | Lasse Collin <lasse.collin@tukaani.org> | 2009-03-01 09:03:08 +0200 |
| commit | 0df9299e2478c2a0c62c05b1ae14a85a353e20d6 (patch) | |
| tree | 62a1288f62f78ac5160bbf5ab75305aa2f57e6c2 | |
| parent | Added AC_CONFIG_MACRO_DIR to configure.ac. (diff) | |
| download | xz-0df9299e2478c2a0c62c05b1ae14a85a353e20d6.tar.xz | |
Test for Linux-specific sysinfo() only on Linux systems.
Some other systems have sysinfo() with different semantics.
| -rw-r--r-- | m4/lc_physmem.m4 | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/m4/lc_physmem.m4 b/m4/lc_physmem.m4 index 8633f4a1..78be1362 100644 --- a/m4/lc_physmem.m4 +++ b/m4/lc_physmem.m4 @@ -54,7 +54,11 @@ main(void) with 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> int main(void) @@ -63,12 +67,18 @@ main(void) sysinfo(&si); return 0; } -]])], [ - AC_DEFINE([HAVE_PHYSMEM_SYSINFO], [1], - [Define to 1 if the amount of physical memory can be detected - with sysinfo().]) - AC_MSG_RESULT([sysinfo]) -], [ - AC_MSG_RESULT([unknown]) -])])]) + ]])], [ + AC_DEFINE([HAVE_PHYSMEM_SYSINFO], [1], + [Define to 1 if the amount of physical memory + can be detected with Linux sysinfo().]) + AC_MSG_RESULT([sysinfo]) + ], [ + AC_MSG_RESULT([unknown]) + ]) + ;; + *) + AC_MSG_RESULT([unknown]) + ;; +esac +])]) ])dnl lc_PHYSMEM |