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-rw-r--r--docs/manual/adding-packages-cmake.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/manual/adding-packages-cmake.txt b/docs/manual/adding-packages-cmake.txt
index d92b2090f8..6ccf3902f8 100644
--- a/docs/manual/adding-packages-cmake.txt
+++ b/docs/manual/adding-packages-cmake.txt
@@ -107,6 +107,10 @@ typical packages will therefore only use a few of them.
** +BUILD_EXAMPLE+, +BUILD_EXAMPLES+ are disabled;
** +BUILD_TEST+, +BUILD_TESTS+, +BUILD_TESTING+ are disabled.
+* +LIBFOO_SUPPORTS_IN_SOURCE_BUILD = NO+ should be set when the package
+ cannot be built inside the source tree but needs a separate build
+ directory.
+
* +LIBFOO_MAKE+, to specify an alternate +make+ command. This is
typically useful when parallel make is enabled in the configuration
(using +BR2_JLEVEL+) but that this feature should be disabled for
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