From 1411ccafc0f50997b56135c3ee542fdfe9d7f34c Mon Sep 17 00:00:00 2001
From: Mark Adler <madler@alumni.caltech.edu>
Date: Sat, 12 Aug 2023 11:03:46 -0700
Subject: Add memory sanitizer to configure (--memory).

This also adds --address for the address sanitizer, in addition to
the existing --sanitizer. -fno-omit-frame-pointer has been added
for both sanitizers to improve the error reporting.
---
 configure | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/configure b/configure
index 633b0f4..2b6993c 100755
--- a/configure
+++ b/configure
@@ -90,7 +90,8 @@ build64=0
 gcc=0
 warn=0
 debug=0
-sanitize=0
+address=0
+memory=0
 old_cc="$CC"
 old_cflags="$CFLAGS"
 OBJC='$(OBJZ) $(OBJG)'
@@ -102,7 +103,7 @@ leave()
   if test "$*" != "0"; then
     echo "** $0 aborting." | tee -a configure.log
   fi
-  rm -f $test.[co] $test $test$shared_ext $test.gcno ./--version
+  rm -rf $test.[co] $test $test$shared_ext $test.gcno $test.dSYM ./--version
   echo -------------------- >> configure.log
   echo >> configure.log
   echo >> configure.log
@@ -141,7 +142,9 @@ case "$1" in
     -c* | --const) zconst=1; shift ;;
     -w* | --warn) warn=1; shift ;;
     -d* | --debug) debug=1; shift ;;
-    --sanitize) sanitize=1; shift ;;
+    --sanitize) address=1; shift ;;
+    --address) address=1; shift ;;
+    --memory) memory=1; shift ;;
     *)
       echo "unknown option: $1" | tee -a configure.log
       echo "$0 --help for help" | tee -a configure.log
@@ -211,8 +214,11 @@ if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then
       CFLAGS="${CFLAGS} -Wall -Wextra"
     fi
   fi
-  if test $sanitize -eq 1; then
-    CFLAGS="${CFLAGS} -g -fsanitize=address"
+  if test $address -eq 1; then
+    CFLAGS="${CFLAGS} -g -fsanitize=address -fno-omit-frame-pointer"
+  fi
+  if test $memory -eq 1; then
+    CFLAGS="${CFLAGS} -g -fsanitize=memory -fno-omit-frame-pointer"
   fi
   if test $debug -eq 1; then
     CFLAGS="${CFLAGS} -DZLIB_DEBUG"
-- 
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