Link with -lm now that it is not included with --whole-archive when

building rustllvm.

Author: cixtor

Makefile.in

@@ -759,7 +759,7 @@ compile-check: tidy \
 %.stage0$(X): %.stage0.o  $(SREQ0)
 	@$(call E, link [gcc]: $@)
 	$(Q)gcc $(CFG_GCC_CFLAGS) stage0/glue.o -o $@ $< \
-      -Lstage0 -Lrt -lrustrt -lstd
+      -Lstage0 -Lrt -lrustrt -lstd -lm
 	@# dsymutil sometimes fails or prints a warning, but the
 	@# program still runs.  Since it simplifies debugging other
 	@# programs, I\'ll live with the noise.
@@ -768,7 +768,7 @@ compile-check: tidy \
 %.stage1(X): %.stage1.o $(SREQ1)
 	@$(call E, link [gcc]: $@)
 	$(Q)gcc $(CFG_GCC_CFLAGS) stage1/glue.o -o $@ $< \
-      -Lstage1 -Lrt -lrustrt -lstd
+      -Lstage1 -Lrt -lrustrt -lstd -lm
 	@# dsymutil sometimes fails or prints a warning, but the
 	@# program still runs.  Since it simplifies debugging other
 	@# programs, I\'ll live with the noise.
@@ -777,7 +777,7 @@ compile-check: tidy \
 %.stage2$(X): %.stage2.o $(SREQ2)
 	@$(call E, link [gcc]: $@)
 	$(Q)gcc $(CFG_GCC_CFLAGS) stage2/glue.o -o $@ $< \
-      -Lstage2 -Lrt -lrustrt -lstd
+      -Lstage2 -Lrt -lrustrt -lstd -lm
 	@# dsymutil sometimes fails or prints a warning, but the
 	@# program still runs.  Since it simplifies debugging other
 	@# programs, I\'ll live with the noise.