s

Author: firewave

Makefile

@@ -155,7 +155,13 @@ else ifneq ($(HAVE_RULES),)
     $(error invalid HAVE_RULES value '$(HAVE_RULES)')
 endif
 
-HAVE_EXECINFO_H=$(shell echo -e "\x23include <execinfo.h>" | $(CXX) -c -xc - && echo "1" || echo "0")
+# older make versions do not support # in $(shell) and newer ones do not handle the escape sequence right
+SUPPORTS_HASH=$(shell echo "#define DEF" | $(CXX) -c -xc - && echo "1" || echo "0")
+ifeq ($(SUPPORTS_HASH),1)
+	HAVE_EXECINFO_H=$(shell echo "\#include <execinfo.h>" | $(CXX) -c -xc - && echo "1" || echo "0")
+else
+	HAVE_EXECINFO_H=$(shell echo "\#include <execinfo.h>" | $(CXX) -c -xc - && echo "1" || echo "0")
+endif
 override CPPFLAGS += -DHAVE_EXECINFO_H=$(HAVE_EXECINFO_H)
 
 override CXXFLAGS += $(CXXOPTS)