Linking Errors related to X11

Christopher Faylor
Thu Mar 22 14:34:00 GMT 2012

On Wed, Mar 21, 2012 at 07:04:54PM -0400, Larry Hall (Cygwin-X) wrote:
>On 3/21/2012 6:19 PM, Tom Szczesny wrote:
>> I am attempting to port the aplus-fsf-4.22 package (available at
>> to cygwin,
>> and I'm getting linking errors related to X11.
>> I can build the package successfully on Gentoo Linux.
>> The build on cygwin fails at   /aplus-fsf-4.22/src/main/aplus-main.c
>> with many error messages related to X11, such as
>>      undefined reference to '_XWarpPointer'.
>> The contains the lines:
>>     X_LIBS = @X_LIBS@
>> which got translated (in the Makefile) to:
>>     X_INCLUDES = -I
>>     X_LIBS = -L -lX11
>> While this works when building in Gentoo Linux, it does not appear to
>> be correct for cygwin.
>> What is the correct specification when building the package in cygwin?

[I thought this was already answered in the cygwin list]

>Try these:
>X_INCLUDES = /usr/include
>X_LIBS = -L /usr/include -lX11
>You can also override the faulty configure script values and point
>directly at these paths with the -x-includes and -x-libraries

The -L part is not right, Larry.  If anything, it should be -L /usr/lib
but there's no need for that since /usr/lib is searched by default.  So
both the -L and the -I should just be deleted.

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