thread api: added support for platforms without TLS (Thread Local Storage) support (usually older OSX llvm versions ..)

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@16226 54d463be-8e91-2dee-dedb-b68131a5f0ec

1 files changed, 43 insertions, 1 deletions

diff --git a/configure b/configure
index 7cb751351..67d416776 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 16203 .
+# From configure.in Revision: 16221 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.67.
 #
@@ -4708,6 +4708,48 @@ fi
 
 
 
+#
+# Check if CC supports __thread attribute (Thread Local Storage)
+# (Usually our OSX friends 're lacking support of it in older llvm versions ..)
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports __thread specifier (TLS)" >&5
+$as_echo_n "checking whether $CC supports __thread specifier (TLS)... " >&6; }
+if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5 ; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+		__thread int g_Test = -1;
+
+		int main(int argc, char **argv){
+			g_Test = 0;
+			return g_Test;
+		}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+		CFLAGS="$CFLAGS -DHAS_TLS"
+
+else
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wno-unused-parameter" >&5
 $as_echo_n "checking whether $CC supports -Wno-unused-parameter... " >&6; }
 OLD_CFLAGS="$CFLAGS"