--- configure.in
+++ configure.in
@@ -81,7 +81,7 @@
 dnl Checks for programs.
 dnl AC_PROG_CC
 AC_LANG_CPLUSPLUS
-CXXFLAGS=" "
+#CXXFLAGS=" "
 dnl ^^^ set it to non-empty, so AC_PROG_CXX won't include `-g'
 CCC="$CCC g++"
 dnl ^^^ check g++ before c++ (see acspecific.m4, grep AC_PROG_CXX)
@@ -215,7 +215,7 @@
 
 dnl AC_PTS_RUN_OK([perl -x -S ./ccdep.pl $CXX], [], [AC_MSG_ERROR(cannot compute depends)])
 rm -f Makedep
-AC_PTS_RUN_OK([make Makedep], [], [AC_MSG_ERROR(cannot compute depends)])
+AC_PTS_RUN_OK([gmake Makedep], [], [AC_MSG_ERROR(cannot compute depends)])
 AC_PTS_OK
 echo "configure done. Now you should run: make; make install"
 
--- Makefile
+++ Makefile
@@ -17,7 +17,7 @@
 export PERL_BADLANG
 
 CXXX=$(CXD_assert)
-LDALL=$(LDXX) -s $(LDFLAGS) $(LIBS)
+LDALL=$(LDXX) $(LDFLAGS) $(LIBS)
 ifeq ($(ENABLE_DEBUG), no)
 CXXX=$(CXD_no)
 endif
@@ -51,8 +51,8 @@
 IDE_TARGETS_debug := $(patsubst %,%.yes, $(TARGETS))
 IDE_TARGETS_release := $(TARGETS)
 
-CXD_assert =$(CXX) -s -O2
-CXD_no     =$(CXX) -s -DNDEBUG -O3
+CXD_assert =$(CXX)
+CXD_no     =$(CXX) -DNDEBUG
 # CXD_yes    =$(CXX) $(GFLAG) -lefence
 CXD_yes    =$(CXX) $(GFLAG)
 CXD_checker=checkerg++ $(GFLAG)