Created attachment 324856 [details]
full config log
It show this error, while installed blas-reference package from [science] overlay
checking whether Poppler's GfxPatch no longer uses GfxColor... yes
checking for LIBWPG02... yes
checking for IMAGEMAGICK... yes
checking for CAIRO_USER_FONTS... yes
checking for INKSCAPE... no
configure: error: Package requirements (gdkmm-2.4 glibmm-2.4 giomm-2.4 gtkmm-2.4 >= 2.10.0 gtk+-2.0 libxml-2.0 >= 2.6.11 libxslt >= 1.0.15 cairo sigc++-2.0 >= 2.0.12 gthread-2.0 >= 2.0 libpng >= 1.2 gsl) were not met:
Package cblas was not found in the pkg-config search path.
Perhaps you should add the directory containing `cblas.pc'
to the PKG_CONFIG_PATH environment variable
Package 'cblas', required by 'GSL', not found
Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.
Alternatively, you may set the environment variables INKSCAPE_CFLAGS
and INKSCAPE_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.
!!! Please attach the following file when seeking support:
[31;01m*[0m ERROR: media-gfx/inkscape-0.48.3.1 failed (configure phase):
[31;01m*[0m econf failed
Created attachment 324858 [details]
full build log
I had the same problem due to broken /usr/lib/pkgconfig/cblas.pc symlink, perhaps something messed up during update.
Rerun eselect cblas set <whatever-version-you-want>.
This solved a problem for me.