Checking for function s in libs.

[Lars Segerlund]

Hi,

I am packaging an old program with autoconf/make and I have a check that fails without any explanation I can think of.

AC_CHECK_LIB(X11,XOpenDisplay)

fails, however the program uses X11 and I just don't understand whats going on ?

also I have seen some checks like

AC_CHECK_LIB( GL, main)

which are ok ? can somebody help me ?

clueless, Lars Segerlund.