Hello, All, Let's simplify bug tracking by using the following example:
long a,b,c; int main() { a=b*c; return 0; } Here is the output D:\Oleg\pr>msp430-gcc -mmcu=msp430x149 pr.c pr.c:7:2: warning: no newline at end of file C:\DOCUME~2\Oleg\LOCALS~1\Temp/ccy6baaa.o: In function `main': C:\DOCUME~2\Oleg\LOCALS~1\Temp/ccy6baaa.o(.text+0x1c): undefined reference to `__umulsi3hw' Now it is clear that it is not related to the mmcu option. Any ideas ? Thanks, Oleg.