Temporary workaround for cross-compilation

Author: vstinner

Makefile.pre.in

@@ -1872,7 +1872,7 @@ Modules/getbuildinfo.h: $(srcdir)/Tools/build/generate_getbuildinfo.py Programs/
 			`LC_ALL=C $(GITVERSION)` \
 			`LC_ALL=C $(GITTAG)` \
 			`LC_ALL=C $(GITBRANCH)` \
-			"`Programs/_getcompiler`" \
+			"`Programs/_getcompiler || echo COMPILER`" \
 			use_pyconfig
 
 Modules/getbuildinfo.o: $(srcdir)/Modules/getbuildinfo.c Modules/getbuildinfo.h