--- configure.orig	2023-04-13 18:15:33 UTC
+++ configure
@@ -2139,8 +2139,8 @@ MYPCFILES="kyotocabinet.pc"
 MYPCFILES="kyotocabinet.pc"
 
 # Building flags
-MYCFLAGS="-Wall -ansi -pedantic -fPIC -fsigned-char -g0 -O2"
-MYCXXFLAGS="-Wall -fPIC -fsigned-char -g0 -O2"
+MYCFLAGS="-Wall -ansi -pedantic -fPIC -fsigned-char"
+MYCXXFLAGS="-Wall -fPIC -fsigned-char"
 MYCPPFLAGS="-I. -I\$(INCLUDEDIR) -I/usr/local/include"
 MYCPPFLAGS="$MYCPPFLAGS -DNDEBUG -D_GNU_SOURCE=1"
 MYCPPFLAGS="$MYCPPFLAGS -D_FILE_OFFSET_BITS=64 -D_REENTRANT -D__EXTENSIONS__"
@@ -4007,10 +4007,10 @@ printf 'checking for 64-bit availability... '
 
 # System-depending optimization
 printf 'checking for 64-bit availability... '
-if printf 'int main(void) {return 0;}' | $CC -xc -m64 -o config.tmp - >config.tmp 2>&1
+if printf 'int main(void) {return 0;}' | $CC -xc -o config.tmp - >config.tmp 2>&1
 then
-  MYCFLAGS="-m64 $MYCFLAGS"
-  MYCXXFLAGS="-m64 $MYCXXFLAGS"
+  MYCFLAGS="$MYCFLAGS"
+  MYCXXFLAGS="$MYCXXFLAGS"
   printf 'yes\n'
 else
   printf 'no\n'
@@ -4018,10 +4018,10 @@ then
 if test "$enable_opt" != "no"
 then
   printf 'checking for CPU optimization availability... '
-  if printf 'int main(void) {return 0;}' | $CC -xc -march=native -o config.tmp - >config.tmp 2>&1
+  if printf 'int main(void) {return 0;}' | $CC -xc  -o config.tmp - >config.tmp 2>&1
   then
-    MYCFLAGS="-march=native $MYCFLAGS"
-    MYCXXFLAGS="-march=native $MYCXXFLAGS"
+    MYCFLAGS="$MYCFLAGS"
+    MYCXXFLAGS="$MYCXXFLAGS"
     printf 'yes\n'
   else
     printf 'no\n'
@@ -4231,7 +4231,7 @@ else
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
-LIBS="-lstdc++  $LIBS"
+LIBS="$LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -4260,7 +4260,7 @@ _ACEOF
 #define HAVE_LIBSTDC__ 1
 _ACEOF
 
-  LIBS="-lstdc++ $LIBS"
+  LIBS="$LIBS"
 
 fi