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-rw-r--r--INSTALL11
1 files changed, 11 insertions, 0 deletions
diff --git a/INSTALL b/INSTALL
index d55de5dd47..ca847e2f9d 100644
--- a/INSTALL
+++ b/INSTALL
@@ -127,6 +127,17 @@ will be used, and CFLAGS sets optimization options for the compiler.
      library.  This option hardcodes the newly built C library path in
      dynamic tests so that they can be invoked directly.
 
+'--disable-timezone-tools'
+     By default, timezone related utilities ('zic', 'zdump', and
+     'tzselect') are installed with glibc.  If you are building these
+     independently (e.g.  by using the 'tzcode' package), then this
+     option will allow disabling the install of these too.
+
+     Note that you need to make sure the external tools are kept in sync
+     with the versions that the GNU C Library expects as the data
+     formats may change over time.  Consult the 'timezone' subdirectory
+     for more details.
+
 '--enable-lock-elision=yes'
      Enable lock elision for pthread mutexes by default.