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Re: cmake, linker flags, whitespace, cmp0004
From: Joerg Mayer <jmayer () loplof de>
Date: Tue, 10 May 2016 18:00:42 +0200
Hello Martin, is this problem still open? Thanks Jörg On Sun, Apr 17, 2016 at 03:14:32PM +0200, Martin Kaiser wrote:
I'm getting strange cmake errors on Debian Wheezy (cmake 2.8.9). -- Performing Test WS_LD_FLAG_VALID0 CMake Error at CMakeLists.txt:11 (ADD_EXECUTABLE): Target "cmTryCompileExec701976172" links to item " -Wl,--as-needed" which has leading or trailing whitespace. This is now an error according to policy CMP0004. CMake Error: Internal CMake error, TryCompile generation of cmake failed -- Performing Test WS_LD_FLAG_VALID0 - Failed statuscheck linker flag - test linker flags: -pie -- Performing Test WS_LD_FLAG_VALID1 CMake Error at CMakeLists.txt:11 (ADD_EXECUTABLE): Target "cmTryCompileExec2930916065" links to item " -pie" which has leading or trailing whitespace. This is now an error according to policy CMP0004. CMake Error: Internal CMake error, TryCompile generation of cmake failed Apparently, cmake doesn't like leading whitespace in linker options. I tried setting the CMP0004 policy to the old behaviour which is not ignore the whitespace. cmake_policy(SET CMP0004 OLD) This doesn't fix things. Google results show that this is in fact a bug in cmake's parsing. KDE discovered the bug in their build http://comments.gmane.org/gmane.comp.kde.devel.buildsystem/7858 Cmake fixed it here https://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=e65ef08b I tried to work around this by removing whitespace from the linker flags or applying a regexp replace on the final list of linker flags. None of this produced a clean and readable solution. Does anyone more familiar with cmake have a recommendation how to fix this properly?
-- Joerg Mayer <jmayer () loplof de> We are stuck with technology when what we really want is just stuff that works. Some say that should read Microsoft instead of technology. ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: https://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org?subject=unsubscribe
Current thread:
- Re: cmake, linker flags, whitespace, cmp0004 Joerg Mayer (May 10)
- Re: cmake, linker flags, whitespace, cmp0004 Martin Kaiser (May 12)