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authorPaul Eggert <eggert@cs.ucla.edu>2019-03-25 10:46:04 -0700
committerPaul Eggert <eggert@cs.ucla.edu>2019-03-25 10:47:20 -0700
commit97a793cba9fc68a9df67622d8d82c443fe10dd9b (patch)
treecbd2d0dc38c3a15583a43520aeaed7d029af0012 /INSTALL
parent491885030c29f46d688c9b0325f95feccd8d653e (diff)
downloademacs-97a793cba9fc68a9df67622d8d82c443fe10dd9b.tar.gz
Support ./configure --with-gif=ifavailable etc.
Suggested by Stefan Monnier in: https://lists.gnu.org/r/emacs-devel/2019-03/msg00789.html * INSTALL, etc/NEWS: Document this. * configure.ac: Implement this.
Diffstat (limited to 'INSTALL')
-rw-r--r--INSTALL6
1 files changed, 6 insertions, 0 deletions
diff --git a/INSTALL b/INSTALL
index 72bba25df81..80223850100 100644
--- a/INSTALL
+++ b/INSTALL
@@ -318,6 +318,12 @@ features enabled, you can combine --without-all with --with-FEATURE.
For example, you can use --without-all --without-x --with-dbus to
build with D-Bus support and nothing more.
+Use --with-gnutls=ifavailable to use GnuTLS if available but go ahead
+and build without it if not available. This overrides Emacs's default
+behavior of refusing to build if GnuTLS is absent. When X11 support
+is enabled, the libraries for gif, jpeg, png, tiff, and xpm are in the
+same strongly-recommended category as GnuTLS, and have similar options.
+
Use --with-wide-int to implement Emacs values with the type 'long long',
even on hosts where a narrower type would do. With this option, on a
typical 32-bit host, Emacs integers have 62 bits instead of 30.