Thanks that is exactly what I wanted to find out. Yes it is 5.3.2. This was the version that you currently get when you go to www.mingw.org and select the download. After digging around it looks like I really need to get my students to use MinGW64 with much more recent gcc versions. Thanks again. Derek -- Derek Harter, Ph.D., Associate Professor Computer Science and Information Systems (SCI 355) Texas A&M University PO Box 3011 Commerce, TX 75429 Tel: (903) 468-8762 / Fax: (903) 886-5404 Email: Derek****@tamuc***** URL: http://harter.pro PGP Public Key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x613BC988DE797012 - 3, 2, 1, Lets Jam! On Sat, Jun 6, 2020 at 1:46 AM Eli Zaretskii <eliz****@gnu*****> wrote: > > From: Derek Harter <Derek****@tamuc*****> > > Date: Fri, 5 Jun 2020 19:29:47 -0500 > > > > I'm wondering if anyone has more information or knows what the issue is > here. I am using a fresh MinGW > > install with GCC 9.2.0 on Windows 10. > > > > ``` > > C:\Users\dash\repos\link-bug>g++ --version > > g++ (MinGW.org GCC Build-20200227-1) 9.2.0 > > Copyright (C) 2019 Free Software Foundation, Inc. > > This is free software; see the source for copying conditions. There is > NO > > warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR > PURPOSE. > > ``` > > > > The following minimal example causes a linker undefined error with > g++/ld. > > > > ```c++ > > #include <iostream> > > #include <string> > > using namespace std; > > > > int main(int argc, char* argv[]) > > { > > cout << to_string(42) << endl; > > return 0; > > } > > ``` > > > > ``` > > C:\Users\dash\repos\link-bug>g++ main.cpp -o main > > c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: > > > c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../libmingw32.a(mbrscan.o):(.text+0xb6): > undefined reference to > > `SetLastError at 4' > > c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: > > > c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../libmingw32.a(wcharmap.o):(.text+0x208): > undefined reference to > > `WideCharToMultiByte at 32' > > c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: > > > c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../libmingwex.a(codeset.o):(.text+0xbe): > undefined reference to > > `GetCPInfo at 8' > > c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: > > > c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../libmingwex.a(codeset.o):(.text+0x143): > undefined reference to > > `GetCPInfo at 8' > > collect2.exe: error: ld returned 1 exit status > > ``` > > > > Any ideas? That should of course link without needing to specify any > additional libraries for linking. The > > minimal example works fine on Gnu GCC 9.3.0 on linux and on MacOS. > > Are you using MinGW Runtime v5.3.2? If so, upgrade to 5.3.3 or > downgrade to 5.3.1. This seems to be a known problem with 5.3.2. > > _______________________________________________ > MinGW-Users mailing list > MinGW****@lists***** > > This list observes the Etiquette found at > http://www.mingw.org/Mailing_Lists. > We ask that you be polite and do the same. Disregard for the list > etiquette may cause your account to be moderated. > > _______________________________________________ > You may change your MinGW Account Options or unsubscribe at: > https://lists.osdn.me/mailman/listinfo/mingw-users > Also: mailto:mingw****@lists*****?subject=unsubscribe -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.osdn.me/mailman/archives/mingw-users/attachments/20200606/1d74ee2a/attachment.html>
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