Hi, compiling for newlib with GCC 11.2.0 for mips-mti-elf with multilib now fails with "Error: unrecognized opcode `cfc1 $3,$31'" while compiling newlib/libm/machine/mips/fenv.c More precisely, newlib/libc/machine/mips/machine/fenv-fp.h included by fenv.c contains multiple calls of the function line macro __cfc1() which is defined in newlib/libc/machine/mips/sys/fenv.h as #define __cfc1(__fcsr) __asm __volatile("cfc1 %0, $31" : "=r" (__fcsr)) Apparently, this is not compatible with mips16. Adding -mno-mips16 to the invocation of the compiler fixes the comiplation. (The same was already done for cma101.c and cygmon.c in libgloss.) Attached is a potential fix. Kind regards, Marian