diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 04a99b0053..7e44db5a55 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -78,7 +78,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [macos-12]
+        os: [macos-14]
         configure:
           - {label: "with parser generation", opt: "--enable-parser-generation" }
           - {label: "wo curl",    opt: "--without-curl" }
@@ -91,10 +91,12 @@ jobs:
           - {label: "with pcre2", opt: "--with-pcre2" }
     steps:
       - name: Setup Dependencies
-        # autoconf, curl, pcre2 not installed because they're already
+        # curl, pcre2 not installed because they're already
         # included in the image
         run: |
-          brew install automake \
+          brew install autoconf \
+                       automake \
+                       libtool \
                        yajl \
                        lmdb \
                        lua \
diff --git a/build/pcre.m4 b/build/pcre.m4
index 5575797ff2..4d9912327b 100644
--- a/build/pcre.m4
+++ b/build/pcre.m4
@@ -27,30 +27,41 @@ else
 
     AC_MSG_CHECKING([for libpcre config script])
 
-    for x in ${test_paths}; do
-        dnl # Determine if the script was specified and use it directly
-        if test ! -d "$x" -a -e "$x"; then
-            PCRE_CONFIG=$x
-            pcre_path="no"
-            break
-        fi
+    AC_CHECK_PROG([PCRE_CONFIG_IN_ENV], [pcre-config], [yes], [no])
+
+    if test "$PCRE_CONFIG_IN_ENV" = "yes"; then
+        AC_MSG_NOTICE([pcre-config found in envinronment])
+
+        PCRE_CONFIG=pcre-config
+        pcre_path="no"
+    else
+        AC_MSG_NOTICE([pcre-config not found in environment. checking known paths])
 
-        dnl # Try known config script names/locations
-        for PCRE_CONFIG in pcre-config; do
-            if test -e "${x}/bin/${PCRE_CONFIG}"; then
-                pcre_path="${x}/bin"
+        for x in ${test_paths}; do
+            dnl # Determine if the script was specified and use it directly
+            if test ! -d "$x" -a -e "$x"; then
+                PCRE_CONFIG=$x
+                pcre_path="no"
                 break
-            elif test -e "${x}/${PCRE_CONFIG}"; then
-                pcre_path="${x}"
+            fi
+
+            dnl # Try known config script names/locations
+            for PCRE_CONFIG in pcre-config; do
+                if test -e "${x}/bin/${PCRE_CONFIG}"; then
+                    pcre_path="${x}/bin"
+                    break
+                elif test -e "${x}/${PCRE_CONFIG}"; then
+                    pcre_path="${x}"
+                    break
+                else
+                    pcre_path=""
+                fi
+            done
+            if test -n "$pcre_path"; then
                 break
-            else
-                pcre_path=""
             fi
         done
-        if test -n "$pcre_path"; then
-            break
-        fi
-    done
+    fi
 
     if test -n "${pcre_path}"; then
         if test "${pcre_path}" != "no"; then
diff --git a/build/yajl.m4 b/build/yajl.m4
index dd69571562..e050c084bd 100644
--- a/build/yajl.m4
+++ b/build/yajl.m4
@@ -78,6 +78,29 @@ else
 #    fi
 fi
 
+# FIX: if the include directory in CFLAGS ends with "include/yajl",
+# remove the suffix "/yajl". the library header files are included
+# using the prefix (for example, #include <yajl/yajl_tree.h>), and
+# this is even the case for the library itself (for example,
+# yajl_tree.h includes yajl/yajl_common.h).
+
+new_cflags=""
+
+for flag in $YAJL_CFLAGS; do
+    case "$flag" in
+        -I*/include/yajl)
+            new_flag="${flag%/yajl}"
+            new_cflags="$new_cflags $new_flag"
+            ;;
+        *)
+            new_cflags="$new_cflags $flag"
+            ;;
+    esac
+done
+
+YAJL_CFLAGS="$new_cflags"
+
+
 if test -z "${YAJL_LDADD}"; then
     if test -z "${YAJL_MANDATORY}"; then
         if test -z "${YAJL_DISABLED}"; then
diff --git a/configure.ac b/configure.ac
index d894316421..3869927273 100644
--- a/configure.ac
+++ b/configure.ac
@@ -164,8 +164,8 @@ AC_CHECK_HEADERS([iostream])
 AC_CHECK_HEADERS([sys/utsname.h])
 
 
-# ??
-LT_INIT([dlopen])
+# Initialize libtool
+LT_INIT
 
 # Identify platform
 AC_CANONICAL_HOST