[LyX/master] improve language flag for Objective-C compiler call

[Stephan Witt]

commit 36e5864a8264b428ee7a59a09b25830b49d9c5af
Author: Stephan Witt <sw...@lyx.org>
Date:   Wed Apr 30 23:14:30 2014 +0200

    improve language flag for Objective-C compiler call

diff --git a/src/support/CMakeLists.txt b/src/support/CMakeLists.txt
index 285f35f..b0d1c6d 100644
--- a/src/support/CMakeLists.txt
+++ b/src/support/CMakeLists.txt
@@ -25,7 +25,7 @@ file(GLOB support_linkback_headers 
${TOP_SRC_DIR}/src/support/linkback/*.h)
 set_source_files_properties(${support_linkback_sources} 
        ${TOP_SRC_DIR}/src/support/AppleSpeller.m
        ${TOP_SRC_DIR}/src/support/AppleScript.m
-               PROPERTIES COMPILE_FLAGS "-ansi")
+               PROPERTIES COMPILE_FLAGS "-std=c99")
 
 list(REMOVE_ITEM support_sources
        ${TOP_SRC_DIR}/src/support/os_win32.cpp