Changeset 7c57f82 for general/prog/python3.xml

Timestamp:

07/23/2019 07:11:52 PM (5 years ago)

Author:

Ken Moffat <ken@…>

Branches:

10.0, 10.1, 11.0, 11.1, 11.2, 11.3, 12.0, 12.1, 9.0, 9.1, kea, ken/TL2024, ken/inkscape-core-mods, ken/tuningfonts, lazarus, lxqt, plabs/newcss, plabs/python-mods, python3.11, qt5new, rahul/power-profiles-daemon, renodr/vulkan-addition, trunk, upgradedb, xry111/intltool, xry111/llvm18, xry111/soup3, xry111/test-20220226, xry111/xf86-video-removal

Children:

563e0d6

Parents:

d2beee42

Message:

Document some options for python3 and for libreoffice.

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@21853 af4574ff-66df-0310-9fd7-8a98e5e911e0

File:

• general/prog/python3.xml (modified) (1 diff)

general/prog/python3.xml

@@ -179 +179 @@
       against <application>Berkeley DB</application> instead of
       <application>GDBM</application>.
+    </para>
+
+    <para>
+      <option>--enable-optimization</option>: Use this switch
+      if you want to enable <emphasis>expensive</emphasis> optimizations (i.e.
+      Profile Guided Optimizations). This adds around 20 SBU, but can
+      <emphasis>slightly</emphasis> speed up some uses, such as using
+      <application>Sphinx</application> for creating documentation, or use of
+      <application>Python3</application> scripts.
+    </para>
+
+    <para>
+      <option>--with-lto</option>: This optional switch enables thick Link
+      Time Optimization. Unusually, it creates a much larger <filename
+      class="libraryfile">/usr/lib/python3.7/config-3.7m-x86_64-linux-gnu/libpython3.7m.a</filename>
+      with a small increase in the time to compile
+      <application>Python</application>. Run-time results do not appear to show
+      any benefit from doing this.
     </para>