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<p class="MsoNormal"><span style="color:#1F497D">Hmm. It looks my original proposal breaks some backward compatibility. Maybe this patch is better:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">--- a/Source/kwsys/SystemTools.cxx<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">+++ b/Source/kwsys/SystemTools.cxx<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">@@ -1148,13 +1148,13 @@ bool SystemTools::FileExists(const kwsys_stl::string& filename)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> return (GetFileAttributesA(winpath) != INVALID_FILE_ATTRIBUTES);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">- return access(filename.c_str(), R_OK) == 0;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">+ return access(filename.c_str(), R_OK) == 0 || access(filename.c_str(), X_OK) == 0;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">#elif defined(_WIN32)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> return (GetFileAttributesW(<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> SystemTools::ConvertToWindowsExtendedPath(filename).c_str())<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> != INVALID_FILE_ATTRIBUTES);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">#else<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">- return access(filename.c_str(), R_OK) == 0;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">+ return access(filename.c_str(), R_OK) == 0 || access(filename.c_str(), X_OK) == 0;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">#endif<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">}<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> cmake-developers [mailto:cmake-developers-bounces@cmake.org]
<b>On Behalf Of </b>Thompson, KT<br>
<b>Sent:</b> Friday, December 19, 2014 3:46 PM<br>
<b>To:</b> cmake-developers@cmake.org<br>
<b>Subject:</b> [cmake-developers] Proposed change to behavior of find_program<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">CMake developers,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am proposing a small change to SystemTools.cxx to address a problem I have on multiple systems. I need find_program to return the path to an executable file that is not marked with the read permission bit, but is marked with the execute
bit (e.g.: chmod 111 file).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">On Linux systems, find_program unnecessarily requires that a file be readable. I propose that the FileExists function be changed to test for execute permission instead of read permission:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">--- a/Source/kwsys/SystemTools.cxx<o:p></o:p></p>
<p class="MsoNormal">+++ b/Source/kwsys/SystemTools.cxx<o:p></o:p></p>
<p class="MsoNormal">@@ -1148,13 +1148,13 @@ bool SystemTools::FileExists(const kwsys_stl::string& filename)<o:p></o:p></p>
<p class="MsoNormal"> {<o:p></o:p></p>
<p class="MsoNormal"> return (GetFileAttributesA(winpath) != INVALID_FILE_ATTRIBUTES);<o:p></o:p></p>
<p class="MsoNormal"> }<o:p></o:p></p>
<p class="MsoNormal">- return access(filename.c_str(), R_OK) == 0;<o:p></o:p></p>
<p class="MsoNormal">+ return access(filename.c_str(), X_OK) == 0;<o:p></o:p></p>
<p class="MsoNormal">#elif defined(_WIN32)<o:p></o:p></p>
<p class="MsoNormal"> return (GetFileAttributesW(<o:p></o:p></p>
<p class="MsoNormal"> SystemTools::ConvertToWindowsExtendedPath(filename).c_str())<o:p></o:p></p>
<p class="MsoNormal"> != INVALID_FILE_ATTRIBUTES);<o:p></o:p></p>
<p class="MsoNormal">#else<o:p></o:p></p>
<p class="MsoNormal">- return access(filename.c_str(), R_OK) == 0;<o:p></o:p></p>
<p class="MsoNormal">+ return access(filename.c_str(), X_OK) == 0;<o:p></o:p></p>
<p class="MsoNormal">#endif<o:p></o:p></p>
<p class="MsoNormal">}<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Comments? Thoughts?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-kt<o:p></o:p></p>
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<p class="MsoNormal">Kelly (KT) Thompson<o:p></o:p></p>
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