Enable the endianness test.

2005-08-08  Matthias Clasen  <mclasen@redhat.com>

	* tests/convert-test.c: Enable the endianness test.

	* glib/gconvert.c: Make the caching of iconv descriptors
	optional.

	* configure.in: Add an --enable-iconv-cache option, and
	default to disabling iconv caching on new enough glibc.
	Somebody with access to Solaris systems will need to test
	if opening/closing of iconv descriptors is enough of
	a performance problem to warrant the caching on that
	platform. Note that the caching is causing correctness
	problems in some corner cases, thus turning it off
	is desirable unless it has severe performance implications.

1 files changed, 28 insertions, 0 deletions

diff --git a/configure.in b/configure.in
index 77086e11a..e79e87330 100644
--- a/configure.in
+++ b/configure.in
@@ -396,6 +396,34 @@ if test "x$found_iconv" = "xno" ; then
    AC_MSG_ERROR([*** No iconv() implementation found in C library or libiconv])
 fi
 
+jm_GLIBC21
+AC_ARG_ENABLE(iconv-cache, 
+              [AC_HELP_STRING([--enable-iconv-cache=@<:@yes/no/auto@:>@],
+                              [cache iconv descriptors [default=auto]])],,
+              [enable_iconv_cache=auto])
+
+AC_MSG_CHECKING([Whether to cache iconv descriptors])
+case $enable_iconv_cache in
+  auto)
+    if test $ac_cv_gnu_library_2_1 = yes; then
+      enable_iconv_cache=no
+    else 
+      enable_iconv_cache=yes
+    fi
+  ;;
+  yes|no) 
+  ;;
+  *) AC_MSG_ERROR([Value given to --enable-iconv-cache must be one of yes, no or auto])
+  ;;
+esac
+
+if test $enable_iconv_cache = yes; then
+   AC_DEFINE(NEED_ICONV_CACHE,1,[Do we cache iconv descriptors])
+fi
+
+AC_MSG_RESULT($enable_iconv_cache)
+
+
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