<html><head><style>body{font-family:Merriweather,Arial;font-size:13px}</style></head><body><div style="font-family:Merriweather,Arial;font-size:13px; color: rgba(51,51,51,1.0); ">I managed to fix it. I got confused because recently I updated Xcode, but in facts the problem was completely unrelated: I had a project header file named “math.h”. :) Very noob mistake! Interestingly enough, this bug does not pop-out on Linux (using GCC). </div><div style="font-family:Merriweather,Arial;font-size:13px; color: rgba(51,51,51,1.0); "><br></div><div style="font-family:Merriweather,Arial;font-size:13px; color: rgba(51,51,51,1.0); ">So I just renamed “math.h” to a custom name, and now everything is back as before (Ah, pay attention! Most of macOS systems have a case-insensitive filesystem… I firstly renamed the file from “math.h” -> “Math.h”, but it didn’t work either and it took a while to realize that on macOS “math.h” and “Math.h” are the same if the FS is case-insensitive. </div><div style="font-family:Merriweather,Arial;font-size:13px; color: rgba(51,51,51,1.0); "><br></div><div style="font-family:Merriweather,Arial;font-size:13px; color: rgba(51,51,51,1.0); ">In any case thanks Juan for your help! :)</div> <br> <div class="gmail_signature"><pre><code> _
-. .´ |∞∞∞∞
', ; |∞∞∞∞∞∞
˜˜ |∞∞∞∞∞∞∞∞∞ RdB
,., |∞∞∞∞∞∞
.' '. |∞∞∞∞
-' `’
https://rdb.is
</code></pre></div> <br><p class="airmail_on">On 8 November 2019 at 17:36:08, Juan Sanchez (<a href="mailto:juan.e.sanchez@gmail.com">juan.e.sanchez@gmail.com</a>) wrote:</p> <blockquote type="cite" class="clean_bq"><span><div><div></div><div>
<title></title>
<div dir="ltr">I had an issue last week, where the isysroot setting
was messed up, after I had done an xcode update.
<div><br></div>
<div>
<div>Even though I am using Mojave (10.14), instead of Catalina
(10.15), xcode has apparently upped the version number from 10.14
to 10.15.</div>
<div><br></div>
<div><span style="color:rgb(51,51,51);font-family:Merriweather,Arial;font-size:13px">
/Applications/Xcode.app/</span><span style="color:rgb(51,51,51);font-family:Merriweather,Arial;font-size:13px">Contents/Developer/Platforms/</span><span style="color:rgb(51,51,51);font-family:Merriweather,Arial;font-size:13px">MacOSX.platform/Developer/</span><span style="color:rgb(51,51,51);font-family:Merriweather,Arial;font-size:13px">SDKs/MacOSX10.15.sdk</span> </div>
</div>
<div><br></div>
<div>Creating a brand new build directory fixed the problem, since
the cached information concerning the compiler environment was
invalid.
<div><br></div>
<div>Regards,</div>
<div><br>
Juan</div>
<div><br></div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Nov 8, 2019 at 10:18 AM
Ruben Di Battista <<a href="mailto:rubendibattista@gmail.com">rubendibattista@gmail.com</a>>
wrote:<br></div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<div style="font-family:Merriweather,Arial;font-size:13px;color:rgb(51,51,51)">
Hello, </div>
<div style="font-family:Merriweather,Arial;font-size:13px;color:rgb(51,51,51)">
<br></div>
<div style="font-family:Merriweather,Arial;font-size:13px;color:rgb(51,51,51)">
Tryign to compile a project that built correctly since now. I guess
something changed on my system, and now I’m getting this
error: </div>
<div style="font-family:Merriweather,Arial;font-size:13px;color:rgb(51,51,51)">
<br></div>
<div style="font-family:Merriweather,Arial;font-size:13px;color:rgb(51,51,51)">
<div style="margin:0px">Scanning dependencies of target
Mercurve</div>
<div style="margin:0px">
/Applications/Xcode.app/Contents/Developer/usr/bin/make -f
src/libs/CMakeFiles/Mercurve.dir/build.make
src/libs/CMakeFiles/Mercurve.dir/build</div>
<div style="margin:0px">[ 4%] Building CXX object
src/libs/CMakeFiles/Mercurve.dir/BlockMerger.cxx.o</div>
<div style="margin:0px">cd
/Users/rubendibattista/git/x/Mercurve/build/src/libs &&
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++
-DMercurve_EXPORTS
-I/Users/rubendibattista/git/x/Mercurve/src/libs -isystem
/opt/local/include/vtk-8.1 -isystem /opt/local/include -isystem
/opt/local/include/mpich-mp -isystem /opt/local/include/libxml2
-isysroot
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk
-mmacosx-version-min=10.14 -fPIC -std=gnu++11 -o
CMakeFiles/Mercurve.dir/BlockMerger.cxx.o -c
/Users/rubendibattista/git/x/Mercurve/src/libs/BlockMerger.cxx</div>
<div style="margin:0px">In file included from
/Users/rubendibattista/git/x/Mercurve/src/libs/BlockMerger.cxx:21:</div>
<div style="margin:0px">In file included from
/Users/rubendibattista/git/x/Mercurve/src/libs/BlockMerger.h:28:</div>
<div style="margin:0px">In file included from
/Users/rubendibattista/git/x/Mercurve/src/libs/types.h:25:</div>
<div style="margin:0px">In file included from
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/unordered_set:363:</div>
<div style="margin:0px">In file included from
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__hash_table:19:</div>
<div style="margin:0px">
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/cmath:314:9:
error: no member named 'signbit' in the global namespace</div>
<div style="margin:0px">using ::signbit;</div>
<div style="margin:0px"> ~~^</div>
<div style="margin:0px">
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/cmath:315:9:
error: no member named 'fpclassify' in the global namespace</div>
<div style="margin:0px">using ::fpclassify;</div>
<div style="margin:0px"> ~~^</div>
<div style="margin:0px">
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/cmath:316:9:
error: no member named 'isfinite' in the global namespace</div>
</div>
<div><br></div>
Something got messed up with Xcode update I guess. I also tried to
downgrade Xcode without success. Does anyone have hints on how to
solve this? In particular I’m not entirely sure that the
`-isysroot` flag the cmake provides is correct anymore. Is that
possible? <br>
<div>
<pre><code> _
-. .´ |∞∞∞∞
', ; |∞∞∞∞∞∞
˜˜ |∞∞∞∞∞∞∞∞∞ RdB
,., |∞∞∞∞∞∞
.' '. |∞∞∞∞
-' `’
<a href="https://rdb.is" target="_blank">https://rdb.is</a>
</code></pre></div>
</div>
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