[gdb/testsuite] Require GCC >= 5.x.x in gdb.base/utf8-identifiers.exp

Test-case gdb.base/utf8-identifiers.exp compiles starting with GCC 5, so
require this.

Tested on x86_64-linux.

diff --git a/gdb/testsuite/gdb.base/utf8-identifiers.exp b/gdb/testsuite/gdb.base/utf8-identifiers.exp
index a6ef80fb0bd12d61eeee075ec75f86637f2aabb0..48dce3cdc118e5a8f8ccdcfde940a9bcc2abcbd3 100644 (file)
--- a/gdb/testsuite/gdb.base/utf8-identifiers.exp
+++ b/gdb/testsuite/gdb.base/utf8-identifiers.exp
@@ -21,6 +21,11 @@
 
 load_lib completion-support.exp
 
+if { [is_c_compiler_gcc] } {
+    # Gcc fully supports fextended-identifiers starting GCC 5.
+    require {expr [gcc_major_version] >= 5}
+}
+
 standard_testfile
 
 # Enable basic use of UTF-8.  LC_ALL gets reset for each testfile.