I just finished installing gentoo, and was trying to emerge kde-meta (from a chrooted shell in kubuntu as my wireless has yet to work in gentoo) and this error popped up:


*
* ERROR: kde-base/kontact-3.5.9 failed.
* Call stack:
* ebuild.sh, line 49: Called src_compile
* environment, line 4284: Called kde-meta_src_compile
* environment, line 2935: Called kde_src_compile
* environment, line 3100: Called kde_src_compile 'src_compile'
* environment, line 3220: Called kde_src_compile 'src_compile' 'all' 'myconf'
* environment, line 3207: Called econf 'configure' 'make' '--with-x' '--enable-mitshm' '--without-xinerama' '--with-qt-dir=/usr/qt/3' '--enable-mt' '--with-qt-libraries=/usr/qt/3/lib64' '--disable-dependency-tracking' '--disable-debug' '--without-debug' '--disable-final' '--without-arts' '--prefix=/usr/kde/3.5' '--mandir=/usr/kde/3.5/share/man' '--infodir=/usr/kde/3.5/share/info' '--datadir=/usr/kde/3.5/share'
* ebuild.sh, line 513: Called die
* The specific snippet of code:
* die "econf failed"
* The die message:
* econf failed
*
* If you need support, post the topmost build error, and the call stack if relevant.
* ERROR: kde-base/kontact-3.5.9 failed.
* Call stack:
* ebuild.sh, line 49: Called src_compile
* environment, line 4284: Called kde-meta_src_compile
* environment, line 2935: Called kde_src_compile
* environment, line 3100: Called kde_src_compile 'src_compile'
* environment, line 3220: Called kde_src_compile 'src_compile' 'all' 'myconf'
* environment, line 3207: Called econf 'configure' 'make' '--with-x' '--enable-mitshm' '--without-xinerama' '--with-qt-dir=/usr/qt/3' '--enable-mt' '--with-qt-libraries=/usr/qt/3/lib64' '--disable-dependency-tracking' '--disable-debug' '--without-debug' '--disable-final' '--without-arts' '--prefix=/usr/kde/3.5' '--mandir=/usr/kde/3.5/share/man' '--infodir=/usr/kde/3.5/share/info' '--datadir=/usr/kde/3.5/share'
* ebuild.sh, line 513: Called die
* The specific snippet of code:
* die "econf failed"
* The die message:
* econf failed

My useflags are as follows:
USE="kde qt3 qt4 hal mmx sse sse2 opengl"

I'm not entirely sure where to go from there. Any help will be appreciated.

I think for gentoo the chances of getting help might be better in http://forums.gentoo.org/...
anyway - the error you posted is not useful - because it is not the topmost.
You need to look a few (quite a few) lines higher - where the actual error occured - the lines around there are giving the relevant info.

Thanks, I'll probably try there soon.