[Xen-devel] [PATCH] build system: build kernels subsystem on Linux only

[Christoph Egger <chegger@xxxxxxxxx>]

commit d59122a365ad40c3ff59a0be7427cccbc81aaa4a
Author: Christoph Egger <chegger@xxxxxxxxx>
Date:   Wed Mar 20 13:46:38 2013 +0000

    build: enable kernels subsystem on Linux only
    
    Signed-off-by: Christoph Egger <chegger@xxxxxxxxx>

diff --git a/Makefile b/Makefile
index 5a7107e..e47f29c 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@
 all: dist
 
 -include config/Toplevel.mk
-SUBSYSTEMS?=xen kernels tools stubdom docs
+SUBSYSTEMS?=xen tools stubdom docs
 TARGS_DIST=$(patsubst %, dist-%, $(SUBSYSTEMS))
 TARGS_INSTALL=$(patsubst %, install-%, $(SUBSYSTEMS))
 
diff --git a/configure.ac b/configure.ac
index ce06dad..9aafb8a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,8 +22,18 @@ case "$host_cpu" in
         ;;
 esac
 
+dnl Enable kernel subsystem on Linux only
+case "$host_os" in
+    Linux)
+        os_enable_kernels=y
+        ;;
+    *)
+        os_enable_kernels=n
+        ;;
+esac
+
 AX_SUBSYSTEM_DEFAULT_ENABLE([xen])
-AX_SUBSYSTEM_DEFAULT_ENABLE([kernels])
+AX_SUBSYSTEM_CONDITIONAL([kernels], $os_enable_kernels)
 AX_SUBSYSTEM_DEFAULT_ENABLE([tools])
 AX_SUBSYSTEM_CONDITIONAL([stubdom], $arch_enable_stubdom)
 AX_SUBSYSTEM_DEFAULT_ENABLE([docs])

Attachment: patch_subsystem.diff
Description: Text document

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