Merge topic 'bsd-variables'

a20d7a9707 BSD: Set *BSD variables when targeting a *BSD system
2ae42d0aa3 kFreeBSD: Do not unset LINUX variable

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !7573

Help/manual/cmake-variables.7.rst

@@ -301,6 +301,7 @@ Variables that Describe the System
    /variable/ANDROID
    /variable/APPLE
    /variable/BORLAND
+   /variable/BSD
    /variable/CMAKE_ANDROID_NDK_VERSION
    /variable/CMAKE_CL_64
    /variable/CMAKE_COMPILER_2005
@@ -320,6 +321,8 @@ Variables that Describe the System
    /variable/CMAKE_SYSTEM_PROCESSOR
    /variable/CMAKE_SYSTEM_VERSION
    /variable/CYGWIN
+   /variable/DRAGONFLYBSD
+   /variable/FREEBSD
    /variable/GHSMULTI
    /variable/IOS
    /variable/LINUX
@@ -338,6 +341,8 @@ Variables that Describe the System
    /variable/MSVC_TOOLSET_VERSION
    /variable/MSVC_VERSION
    /variable/MSYS
+   /variable/NETBSD
+   /variable/OPENBSD
    /variable/UNIX
    /variable/WIN32
    /variable/WINCE

Help/release/dev/bsd-variables.rst

@@ -0,0 +1,9 @@
+bsd-variables
+-------------
+
+* The :variable:`BSD` variable is set to true when the target system
+  is BSD (DragonFlyBSD, FreeBSD, OpenBSD, or NetBSD)
+* The :variable:`DRAGONFLYBSD` variable is set to true when the target system is DragonFlyBSD.
+* The :variable:`FREEBSD` variable is set to true when the target system is FreeBSD.
+* The :variable:`NETBSD` variable is set to true when the target system is NetBSD.
+* The :variable:`OPENBSD` variable is set to true when the target system is OpenBSD.

Help/variable/BSD.rst

@@ -0,0 +1,6 @@
+BSD
+---
+
+.. versionadded:: 3.25
+
+Set to true when the target system is BSD (DragonFlyBSD, FreeBSD, OpenBSD, or NetBSD)

Help/variable/DRAGONFLYBSD.rst

@@ -0,0 +1,6 @@
+DRAGONFLYBSD
+------------
+
+.. versionadded:: 3.25
+
+Set to true when the target system is DragonFlyBSD.

Help/variable/FREEBSD.rst

@@ -0,0 +1,6 @@
+FREEBSD
+-------
+
+.. versionadded:: 3.25
+
+Set to true when the target system is FreeBSD.

Help/variable/NETBSD.rst

@@ -0,0 +1,6 @@
+NETBSD
+------
+
+.. versionadded:: 3.25
+
+Set to true when the target system is NetBSD.

Help/variable/OPENBSD.rst

@@ -0,0 +1,6 @@
+OPENBSD
+-------
+
+.. versionadded:: 3.25
+
+Set to true when the target system is OpenBSD.