OpenBLAS failed to build.

[ls-devs]

[build]       openblas                i686-w64-mingw32.static

Failed to build package openblas for target i686-w64-mingw32.static!
------------------------------------------------------------
make[3]: *** [Makefile:307: cblat1] Error 1
make[3]: Leaving directory '/home/ls-devs/Utils/mxe/tmp-openblas-i686-w64-mingw32.static/OpenBLAS-0.3.20/test'
make[2]: *** [Makefile:146: tests] Error 2
make[2]: Leaving directory '/home/ls-devs/Utils/mxe/tmp-openblas-i686-w64-mingw32.static/OpenBLAS-0.3.20'
make[1]: *** [Makefile:901: build-only-openblas_i686-w64-mingw32.static] Error 2
make[1]: Leaving directory '/home/ls-devs/Utils/mxe'
real	4m3.000s
user	7m3.863s
sys	2m44.854s
------------------------------------------------------------
[log]      /home/ls-devs/Utils/mxe/log/openblas_i686-w64-mingw32.static

make: *** [Makefile:889: /home/ls-devs/Utils/mxe/usr/i686-w64-mingw32.static/installed/openblas] Error 1

/home/ls-devs/Utils/mxe/usr/bin/i686-w64-mingw32.static-ld: cannot find -lgfortran -lquadmath: No such file or directory
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:278: sblat1] Error 1
make[3]: *** Waiting for unfinished jobs....
/home/ls-devs/Utils/mxe/usr/bin/i686-w64-mingw32.static-ld: cannot find -lgfortran -lquadmath: No such file or directory
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:289: dblat1] Error 1
/home/ls-devs/Utils/mxe/usr/bin/i686-w64-mingw32.static-ld: cannot find -lgfortran -lquadmath: No such file or directory
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:318: zblat1] Error 1
/home/ls-devs/Utils/mxe/usr/bin/i686-w64-mingw32.static-ld: cannot find -lgfortran -lquadmath: No such file or directory
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:307: cblat1] Error 1
make[3]: Leaving directory '/home/ls-devs/Utils/mxe/tmp-openblas-i686-w64-mingw32.static/OpenBLAS-0.3.20/test'
make[2]: *** [Makefile:146: tests] Error 2
make[2]: Leaving directory '/home/ls-devs/Utils/mxe/tmp-openblas-i686-w64-mingw32.static/OpenBLAS-0.3.20'
make[1]: *** [Makefile:901: build-only-openblas_i686-w64-mingw32.static] Error 2
make[1]: Leaving directory '/home/ls-devs/Utils/mxe'

real	4m3.000s
user	7m3.863s
sys	2m44.854s

https://gist.github.com/ls-devs/fb2e1a878c9c0b08c4dfb381e514542d

[darealshinji]

I cannot confirm this with the current version of MXE.

The log shows this error:

/home/ls-devs/Utils/mxe/usr/bin/i686-w64-mingw32.static-ld: cannot find -lgfortran -lquadmath: No such file or directory

It looks like there is a strange escape between -lgfortran and -lquadmath:

i686-w64-mingw32.static-gfortran [...]  -lgfortran\ -lquadmath -lmingwthrd -lmoldname -lmingwex -lssp_nonshared -lssp -lmsvcrt -lpthread -lmingwthrd -lmoldname -lmingwex -lssp_nonshared -lssp -lmsvcrt