Thanks for help, now I have my own build of libstdc++.so. One of things I want to try is to remove \ dependency on libm.so, because in our code is not used function from libm. I tried to look into Makefile, but there are only two variables containing word "libm": SUBDIRS and DIST_SUBDIRS and removing libmath from here cannot to help. Can you please advise me what kind of change must be done to remove libstdc++ dependency on libm in Makefile or in other places ? (I worked to this time only with single Makefiles where are used -l linker parameters for linking with libraries, but here is nothing similar) Thanks ! Peter
