Bash version

[edenhill]

mklove currently depends on bash functionality which is only available from bash version 3.2 and later.
Bash 3.2 was released in 2006 so it should be available on most systems.

[4picht]

Seems 3.2 does not do the trick...
$ ./bash-3.2/bash configure
mklove/modules/configure.base: line 272: unexpected token (', expected )'
mklove/modules/configure.base: line 272: syntax error near ^[0-9]+(['
mklove/modules/configure.base: line 272: elif [[ ! ( "$val" =~ ^[0-9]+([lL]?[lL][dDuU]?)?$ || '
configure: line 19: mkl_in_list: command not found
configure: line 21: mkl_in_list: command not found
configure: line 22: mkl_in_list: command not found
configure: line 27: mkl_check_terminal_color_support: command not found
configure: line 39: mkl_require: command not found
configure: line 42: mkl_require: command not found
configure: line 45: mkl_require: command not found
configure: line 59: mkl_require: command not found
configure: line 193: mkl_cache_read: command not found
configure: line 196: mkl_checks_run: command not found
configure: line 199: mkl_check_fails: command not found
configure: line 202: mkl_generate: command not found
configure: line 205: mkl_summary: command not found
configure: line 208: mkl_cache_write: command not found

$ ./bash-4.0/bash ./configure
Works for me, although I need to pass TOPDIR manually for the Makefile to work.

[EugenDueck]

@edenhill

Bash 3.2 was released in 2006 so it should be available on most systems.

I just installed MinGW to do a Windows build, and bash is still on 3.1.23, I cannot configure it there.

[edenhill]

Is it possible to upgrade bash in your mingw install?
Have to draw the legacy support line somewhere

[EugenDueck]

Sure. But unfortunately that is the latest version of bash, according to the MinGW Installation Manager

[EugenDueck]

I think I will just give up at this point and have some Windows user build it with Visual Studio - I am not using Windows myself.

[edenhill]

If you're building librdkafka you could try its CMake builder instead.

[EugenDueck]

Is it possible to cross-compile from Windows to Linux? I have never done it, but configure --help has all cross-compile options marked "(no-op)", and /configure --host=x86_64-w64-mingw32 --prefix=/usr/x86_64-w64-mingw32/ leads to the usual ELF binary, so I guess the answer is no?

Cross-compilation options:
   --host=HOST                          Configure to build programs to run on HOST (no-op)
   --build=BUILD                        Configure for building on BUILD (no-op)
   --target=TARGET                      Configure for building cross-toolkits for platform TARGET (no-op)

[edenhill]

The cross-compilation options are for command line argument compat only, they won't really work, but I guess it is possible by setting up CC, CXX, CPPFLAGS, et.al, accordingly, but this outside of my knowledge.
I'd just fire up a docker container to do the build.