Am 30.10.2012 09:32, schrieb Norbert Preining:
For lmodern the old version of the math otf font was shipped in the lm opentype dir, so it was activated. Some TeX applications use fontconfig to search for fonts (xetex) Libreoffice might get math font support, these fonts are not the normal TeX math fonts, but are more like Cambria Math.
Sorry for the fuzz, I didn't know all of this. Please forget abot it.However, I am afraid that both the Type 1 and the Opentype fonts become visible to fontconfig and that the new math fonts end up duplicated with similar but not identical names (just like we had it for e.g. TeX Gyre Termes and TeXGyreTermes).