Re: Configure 21.1.14 does not find XPM on Cygwin without X11 install ed

David> I did a fresh update of Cygwin and then downloaded the David> 21.1.14 tarball. Configure was run without any options. David> It failed to find XPM because the first of the two test David> programs would not compile because X11 header files David> could not be found. Configure for 21.2.43 does David> correctly detect XPM. David> I don't understand configure well enough to create a David> patch, but the only difference in the XPM section David> of the two configure scripts is that the 21.2.43 David> version has the line "#define XPM_NUMBERS" at line 7543 David> of the file. This would be at line 6958 of the 21.1.14 David> version. I would like someone in Windowsland to look at this more deeply. The fundamental principle of running test programs at configure time is to use external interfaces in the _same_ way as the real build process later does. Otherwise you have mismatches between what is detected and what actually works. I have worked to eliminate such mismatches over the years. I would like #define XPM_NUMBERS to be removed from the 21.2 configure script. Find another way to fix this in configure.in.