[TODO] MinGW compilers no longer supported (regression).

[zv-io]

Using i686-w64-mingw32 and x86_64-w64-mingw32, the following error is produced, as the -H flag is "not yet implemented" by configure.sh and History support depends on termios.h, which is unavailable in MinGW.

This change occurred between 6bae85d (2018-12-14) and fb14efc (2018-12-22).

Testing C compilers...

CC (gcc) is not compatible with gcc/clang options

usage: ./configure.sh [-b|-d|-c] [-ghHSR] [-O OPT_LEVEL] [-k KARATSUBA_LEN]
...

The previous linenoise-based implementation worked well on Win32 save for a bug where a fresh line (returning from history) could not be reached, as first noted in IRC.

[gavinhoward]

So there are a couple of reasons why this is happening.

1. As you said, <termios.h> does not exist.
2. configure.sh does a full compile to test CC and HOSTCC. The reason for this at the time was that this project did not support compiling with the POSIX-standard c99 command. Now, it does, and such a test should be unnecessary.
3. History is not supported, and never will be, on Windows. This means that the project is set to error on any compiler where BC_ENABLE_HISTORY is 1 and _WIN32 is defined.

I will try to get changes to fix this (for example, removing the testing compilers bit), but history will remain unsupported on Windows (and MinGW).

[gavinhoward]

@zv-io, can you check to see if 1545ffe solved your problem?

[gavinhoward]

OP has said on IRC that issue is fixed by 959375c.