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-rw-r--r--share/man/man5/make.conf.510
1 files changed, 10 insertions, 0 deletions
diff --git a/share/man/man5/make.conf.5 b/share/man/man5/make.conf.5
index ebac979e945f..445edca99a46 100644
--- a/share/man/man5/make.conf.5
+++ b/share/man/man5/make.conf.5
@@ -93,6 +93,16 @@ that are used for all builds, or are used by the
.Pa makefiles
for things other than builds.
.Bl -tag -width Ar
+.It Va ALWAYS_CHECK_MAKE
+.Pq Vt bool
+Instructs the top-level makefile in the source tree (normally
+.Pa /usr/src )
+to always check if
+.Xr make 1
+is up-to-date.
+Normally this is only done for the world and buildworld targets to handle
+upgrades from older versions of
+.Fx .
.It Va CFLAGS
.Pq Vt str
Controls the compiler setting when compiling C code.