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Fix CMAKE_HOST_SYSTEM_NAME on SunOS

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In commit 0bbd993f (Make CMAKE_HOST_SYSTEM_NAME available in scripting
context, 2016-12-26) we added a call to `uname` that checks for a zero
return value.  However, on Solaris the `uname(2)` manual [1] says that
on success a non-negative value is returned.  Fix our return code check
so that we detect the `SunOS` name correctly.

[1] https://docs.oracle.com/cd/E53394_01/html/E54765/uname-2.html
This commit is contained in:
Brad King
2017-02-27 10:30:20 -05:00
parent 717e1f3056
commit c1aaf8a61d
1 changed files with 1 additions and 1 deletions
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2
Source/cmStateSnapshot.cxx
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@@ -308,7 +308,7 @@ void cmStateSnapshot::SetDefaultDefinitions()
this->SetDefinition("CMAKE_HOST_UNIX", "1");
struct utsname uts_name;
if (uname(&uts_name) == 0) {
if (uname(&uts_name) >= 0) {
this->SetDefinition("CMAKE_HOST_SYSTEM_NAME", uts_name.sysname);
}
#endif