Added shared cache support (from a patch by Patrick Pélissier).

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@10327 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 11 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index 8233d2bdb..665997a4f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -167,6 +167,17 @@ AC_ARG_ENABLE(thread-safe,
       *)   AC_MSG_ERROR([bad value for --enable-thread-safe: yes or no]) ;;
      esac])
 
+AC_ARG_ENABLE(shared-cache,
+   [  --enable-shared-cache   enable use of caches shared by all threads,
+                          for all MPFR constants.  It usually makes MPFR
+                          dependent on PTHREAD [[default=no]]],
+   [ case $enableval in
+      yes) mpfr_want_shared_cache=yes
+         AC_DEFINE([WANT_SHARED_CACHE],1,[Want shared cache]) ;;
+      no)  ;;
+      *) AC_MSG_ERROR([bad value for --enable-shared-cache: yes or no]) ;;
+     esac])
+
 AC_ARG_ENABLE(warnings,
    [  --enable-warnings       allow MPFR to output warnings to stderr [[default=no]]],
    [ case $enableval in