Autoconf 2.57 possible bug:

[Wolmer Joergensen]

During configuration of the gnome-panel-2.3.2 source code I detected an 
autoconf message like this:

checking X11/extensions/Xinerama.h usability... no
checking X11/extensions/Xinerama.h presence... yes
configure: WARNING: X11/extensions/Xinerama.h: present but cannot be 
compiled
configure: WARNING: X11/extensions/Xinerama.h: check for missing 
prerequisite headers?
configure: WARNING: X11/extensions/Xinerama.h: proceeding with the 
preprocessor's result
configure: WARNING:     ## ------------------------------------ ##
configure: WARNING:     ## Report this to address@hidden ##
configure: WARNING:     ## ------------------------------------ ##
checking for X11/extensions/Xinerama.h... yes
checking for XineramaQueryScreens in -lXinerama... yes

rpm -qa  | grep XFree reveals:

XFree86-libs-4.2.0-8
XFree86-75dpi-fonts-4.2.0-8
XFree86-devel-4.2.0-8
XFree86-4.2.0-8
XFree86-font-utils-4.2.0-8
XFree86-ISO8859-15-100dpi-fonts-4.2.0-8
XFree86-tools-4.2.0-8
XFree86-100dpi-fonts-4.2.0-8
XFree86-ISO8859-15-75dpi-fonts-4.2.0-8
XFree86-twm-4.2.0-8
XFree86-xfs-4.2.0-8
XFree86-base-fonts-4.2.0-8
XFree86-xdm-4.2.0-8

rpm -qa  | grep  autoco reveals:

autoconf-2.57-3

rpm -qa | grep glibc reveals:

glibc-common-2.2.5-43
glibc-devel-2.2.5-34
compat-glibc-5.2-2.0.7.2
compat-glibc-6.2-2.1.3.2
glibc-kernheaders-2.4-7.14
glibc-utils-2.2.5-43
glibc-2.2.5-43



I hope this report/information is sufficient.

Wolmer Joergensen, Denmark.