#116 iwidgets 4.1.0 configure error in line 6515

[Thomas Perschak]

itcl on itcl_3_branch
itk on itk_3_branch
iwidgets on trunk (is this correct? configure shows "Generated by GNU Autoconf 2.59 for iwidgets 4.1.0.")
MinGW64 on Win7
Tcl85

Compiling iwidgets fails in line 6515:

...
checking if Windows/CE build is requested... no
checking system version (for dynamic loading)... ./configure: line 6515: syntax error near unexpected token (' ./configure: line 6515: case (ac_space=' '; set | grep ac_space) 2>&1 in'
...

The last version which worked correctly in Win7 was iwidgets 4.0.2.
Note that 4.1.0 works fine when compiling in Ubuntu 14 and Ubuntu 16.

Regards

[Don Porter]

This appears to be a consequence of adding

TEA_CONFIG_CFLAGS([])

to configure.in

[Don Porter]

No, perhaps not. That line in the configure file is not new.

This is going to require someone on a Windows system
to debug.

[Don Porter]

One thing we can blindly try is to just sweep into place
an updated tclconfig/tcl.m4 from the current tclconfig
project and see if this is some ancient problem fixed
long ago.

[Don Porter]

I committed a refreshed tcl.m4 and the resulting
new configure file to the HEAD of iwidgets. Can you
check if they work any better?

[Thomas Perschak]

This fixed the issue.

thx!