<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">You need to set the cl-std value to 1.2. By default its 1.1.<div><br></div><div>-Tanya</div><div><br><div><div>On Apr 12, 2013, at 2:40 PM, "Liu, Yaxun (Sam)" <<a href="mailto:Yaxun.Liu@amd.com">Yaxun.Liu@amd.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div lang="EN-US" link="blue" vlink="purple" style="font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div class="WordSection1" style="page: WordSection1; "><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">I was trying to compile a simple OpenCL source with clang:<o:p></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">extern int foo(int, int);<o:p></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">I got an error msg:<o:p></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">clang.exe : tmp.cl:1:1: error: OpenCL does not support the 'extern' storage class specifier<o:p></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">OpenCL spec 1.2 says:<o:p></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><span style="font-family: Verdana, sans-serif; ">The<span class="apple-converted-space"> </span></span><code style="font-family: 'Courier New'; "><span style="font-size: 12pt; ">typedef</span></code><span style="font-family: Verdana, sans-serif; ">,<span class="apple-converted-space"> </span></span><code style="font-family: 'Courier New'; "><span style="font-size: 12pt; ">extern</span></code><span style="font-family: Verdana, sans-serif; ">, and<span class="apple-converted-space"> </span></span><code style="font-family: 'Courier New'; "><span style="font-size: 12pt; ">static</span></code><span class="apple-converted-space"><span style="font-family: Verdana, sans-serif; "> </span></span><span style="font-family: Verdana, sans-serif; ">storage-class specifiers are supported.<span class="apple-converted-space"> <o:p></o:p></span></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">Is this a bug? Or did I miss anything? Thanks.<o:p></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">Sam<o:p></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div></div>_______________________________________________<br>cfe-dev mailing list<br><a href="mailto:cfe-dev@cs.uiuc.edu" style="color: purple; text-decoration: underline; ">cfe-dev@cs.uiuc.edu</a><br><a href="http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev" style="color: purple; text-decoration: underline; ">http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev</a><br></div></blockquote></div><br></div></body></html>