Allow to build without exporting symbols
When statically linking jemalloc, it may be beneficial not to export its
symbols if it makes sense, which allows the compiler and the linker to do
some further optimizations.
diff --git a/INSTALL b/INSTALL
index e40a7ed..7c2ed68 100644
--- a/INSTALL
+++ b/INSTALL
@@ -55,6 +55,11 @@
jemalloc overlays the default malloc zone, but makes no attempt to actually
replace the "malloc", "calloc", etc. symbols.
+--without-export
+ Don't export public APIs. This can be useful when building jemalloc as a
+ static library, or to avoid exporting public APIs when using the zone
+ allocator on OSX.
+
--with-private-namespace=<prefix>
Prefix all library-private APIs with <prefix>. For shared libraries,
symbol visibility mechanisms prevent these symbols from being exported, but
diff --git a/configure.ac b/configure.ac
index 1c52439..8558961 100644
--- a/configure.ac
+++ b/configure.ac
@@ -471,6 +471,13 @@
AC_DEFINE_UNQUOTED([${n}], [${m}])
done
+AC_ARG_WITH([export],
+ [AS_HELP_STRING([--without-export], [disable exporting jemalloc public APIs])],
+ [if test "x$with_export" = "xno"; then
+ AC_DEFINE([JEMALLOC_EXPORT],[])]
+fi]
+)
+
dnl Do not mangle library-private APIs by default.
AC_ARG_WITH([private_namespace],
[AS_HELP_STRING([--with-private-namespace=<prefix>], [Prefix to prepend to all library-private APIs])],