<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<p>Hi,</p>
<p>I'll give this a shot, thank you. Ideally we'd have a generator
expression pick up ${std} from the relevant target property, but
I'll have to play with that since I'm not familiar enough with
generator expressions to know <i>a priori</i> how this will turn
out.</p>
<p>Thanks for your help,</p>
<p>Chris.<br>
</p>
<br>
<div class="moz-cite-prefix">On 5/30/18 3:12 PM, Chuck Atkins wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAOXZzG5kcL_A=RadzcJsDmh9esYBTY=ry-NUSEurHLm9kUab=w@mail.gmail.com">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<div dir="ltr">Hi Chris.<br>
<div>
<div class="gmail_extra">
<div class="gmail_quote"><br>
<div>Try using the the
CMAKE_CXX${std}_STANDARD_COMPILE_OPTION variable. For
example, the folowing piece of CMake code:</div>
<div style="margin-left:40px"><span
style="font-family:monospace,monospace">cmake_minimum_required(VERSION
3.9)<br>
<br>
project(foo CXX)<br>
<br>
foreach(std IN ITEMS 98 11 14 17)<br>
message("C++${std} std flags:
${CMAKE_CXX${std}_STANDARD_COMPILE_OPTION}")<br>
message("C++${std} ext flags:
${CMAKE_CXX${std}_EXTENSION_COMPILE_OPTION}")<br>
endforeach()</span><br>
<br>
</div>
<div>Wll generate for GCC on Linux:</div>
<div style="margin-left:40px"><span
style="font-family:monospace,monospace">-- The CXX
compiler identification is GNU 8.1.1<br>
-- Check for working CXX compiler: /usr/bin/c++<br>
-- Check for working CXX compiler: /usr/bin/c++ --
works<br>
-- Detecting CXX compiler ABI info<br>
-- Detecting CXX compiler ABI info - done<br>
-- Detecting CXX compile features<br>
-- Detecting CXX compile features - done<br>
C++98 std flags: -std=c++98<br>
C++98 ext flags: -std=gnu++98<br>
C++11 std flags: -std=c++11<br>
C++11 ext flags: -std=gnu++11<br>
C++14 std flags: -std=c++14<br>
C++14 ext flags: -std=gnu++14<br>
C++17 std flags: -std=c++1z<br>
C++17 ext flags: -std=gnu++1z<br>
-- Configuring done</span><br>
</div>
<div><br>
</div>
<div>PGI on Linux:</div>
<div style="margin-left:40px"><span
style="font-family:monospace,monospace">-- The CXX
compiler identification is PGI 18.4.0<br>
-- Check for working CXX compiler:
/opt/pgi/linux86-64/18.4/bin/pgc++<br>
-- Check for working CXX compiler:
/opt/pgi/linux86-64/18.4/bin/pgc++ -- works<br>
-- Detecting CXX compiler ABI info<br>
-- Detecting CXX compiler ABI info - done<br>
-- Detecting CXX compile features<br>
-- Detecting CXX compile features - done<br>
C++98 std flags: -A<br>
C++98 ext flags: --gnu_extensions<br>
C++11 std flags: --c++11;-A<br>
C++11 ext flags: --c++11;--gnu_extensions<br>
C++14 std flags: --c++14;-A<br>
C++14 ext flags: --c++14;--gnu_extensions<br>
C++17 std flags: --c++17;-A<br>
C++17 ext flags: --c++17;--gnu_extensions<br>
-- Configuring done</span><br>
<br>
</div>
<div><br>
</div>
<div>And for IBM XL on AIX:</div>
<div>
<div style="margin-left:40px"><span
style="font-family:monospace,monospace">-- The CXX
compiler identification is XL 13.1.3<br>
-- Check for working CXX compiler: /usr/bin/xlC<br>
-- Check for working CXX compiler: /usr/bin/xlC --
works<br>
-- Detecting CXX compiler ABI info<br>
-- Detecting CXX compiler ABI info - done<br>
-- Detecting CXX compile features<br>
-- Detecting CXX compile features - done<br>
C++98 std flags: -qlanglvl=strict98<br>
C++98 ext flags: -qlanglvl=extended<br>
C++11 std flags: -qlanglvl=extended0x<br>
C++11 ext flags: -qlanglvl=extended0x<br>
C++14 std flags: <br>
C++14 ext flags: <br>
C++17 std flags: <br>
C++17 ext flags: <br>
-- Configuring done<br>
-- Generating done</span><br>
</div>
</div>
<br>
</div>
- Chuck<br>
</div>
</div>
</div>
</blockquote>
<br>
</body>
</html>