Works quite well. Thanks a lot !
I just wanted to compile the new ngspice-34 and faced the same issue. In addition to the multiple definition messages I get a huge number of undefined references (see examples below): inpcom.c:(.text+0x6c4): undefined reference to INPevaluate' /usr/bin/ld: inpcom.c:(.text+0x744): undefined reference toINPevaluate' ... ... /usr/bin/ld: misc/.libs/libmisc.a(ivars.o): in function ivars': ivars.c:(.text+0x8f): undefined reference toSpice_Lib_Dir' /usr/bin/ld: ivars.c:(.text+0xb7): undefined reference...