[patch] explicitly specify -std=gnu89 for gdb.cp/inline-break.exp

[David Blaikie <dblaikie@gmail.com>]

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This test is intending to use gnu style inline rather than the
standard c99 inline semantics. Clang defaults to c99 and the test
breaks for this (and other - there's an inlining debug info quality
bug here too - I'll file a bug and kfail the remaining failures in a
separate patch) reason.

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commit 69f01ca2de4a42f336f2656379b90d9a8b6894af
Author: David Blaikie <dblaikie@gmail.com>
Date:   Fri Apr 11 12:45:37 2014 -0700

    Compile inline test with -std=gnu89 explicitly to override Clang's default (-std=c99)
    
    gdb/testsuite/
    	* gdb.opt/inline-break.exp: Explicitly specify -std=gnu89 to
    	override Clang's default.

diff --git gdb/testsuite/ChangeLog gdb/testsuite/ChangeLog
index ed448c5..f7a4b8e 100644
--- gdb/testsuite/ChangeLog
+++ gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2014-04-11  David Blaikie  <dblaikie@gmail.com>
+
+	* gdb.opt/inline-break.exp: Explicitly specify -std=gnu89 to
+	override Clang's default.
+
 2014-04-11  Joel Brobecker  <brobecker@adacore.com>
 
 	Revert the following changes (regressions):
diff --git gdb/testsuite/gdb.opt/inline-break.exp gdb/testsuite/gdb.opt/inline-break.exp
index 21c958a..7eef10a 100644
--- gdb/testsuite/gdb.opt/inline-break.exp
+++ gdb/testsuite/gdb.opt/inline-break.exp
@@ -20,7 +20,7 @@
 standard_testfile
 
 if { [prepare_for_testing $testfile.exp $testfile $srcfile \
-          {debug optimize=-O2 additional_flags=-Winline}] } {
+          {debug optimize=-O2 additional_flags=-Winline additional_flags=-std=gnu89}] } {
     return -1
 }