In practice, you only want to disable __thread support when Xenomai skin
libraries should be loadable via dlopen. Therefore rename the related
configure switch accordingly.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
configure.in | 19 +++++++++++++------
1 files changed, 13 insertions(+), 6 deletions(-)
diff --git a/configure.in b/configure.in
index 6558ebf..ff6bf66 100644
--- a/configure.in
+++ b/configure.in
@@ -765,14 +765,21 @@ AC_CHECK_FUNCS([shm_open shm_unlink])
LIBS="$save_LIBS"
XENO_DLOPEN_CONSTRAINT=
-AC_ARG_WITH([__thread],
- AC_HELP_STRING([--without-__thread],
- [do not use TLS features (allows for dlopen'ing
Xenomai libs)]),
- [use__thread=$withval],
- [use__thread=yes])
+AC_MSG_CHECKING(whether to enable dlopen support for skin libraries)
+AC_ARG_ENABLE(dlopen-skins,
+ AC_HELP_STRING([--enable-dlopen-skins], [Disable TLS features and
automatic
+main thread mapping by the POSIX skin to allows dlopen'ing Xenomai libs.]),
+ [case "$enableval" in
+ y | yes) CONFIG_XENO_LIBS_DLOPEN=y ;;
+ *) unset CONFIG_XENO_LIBS_DLOPEN ;;
+ esac])
+AC_MSG_RESULT(${CONFIG_XENO_LIBS_DLOPEN:-no})
+if test x$CONFIG_XENO_LIBS_DLOPEN = xy; then
+ AC_DEFINE(CONFIG_XENO_LIBS_DLOPEN,1,[config])
+fi
dnl Check whether the compiler supports the __thread keyword.
-if test "x$use__thread" != xno; then
+if test "x$CONFIG_XENO_LIBS_DLOPEN" != xy; then
AC_CACHE_CHECK([for __thread], libc_cv_gcc___thread,
[cat > conftest.c <<\EOF
__thread int a __attribute__ ((tls_model ("initial-exec"))) = 42;
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