Here is a better patch (diff -urp)

diff -urp uuid-1.0.2/config.m4 uuid-1.0.2.mine/config.m4
--- uuid-1.0.2/config.m4	2008-04-01 
08:59:22.000000000 -0700
+++ uuid-1.0.2.mine/config.m4	2008-08-14 
10:16:56.000000000 -0700
@@ -8,16 +8,29 @@ PHP_ARG_WITH(uuid, whether uuid is avail
 if test "$PHP_UUID" != "no"; then
    PHP_CHECK_FUNC_LIB(uuid_type, uuid)
    PHP_CHECK_FUNC_LIB(uuid_variant, uuid)
-
+   PHP_CHECK_FUNC_LIB(uuid_time, uuid)
+   PHP_CHECK_FUNC_LIB(uuid_mac, uuid)
 
   PHP_ADD_INCLUDE($PHP_UUID_DIR/include)
 
   export OLD_CPPFLAGS="$CPPFLAGS"
   export CPPFLAGS="$CPPFLAGS $INCLUDES -DHAVE_UUID"
   AC_CHECK_HEADER([uuid/uuid.h], [], 
AC_MSG_ERROR('uuid/uuid.h' header not found))
-  PHP_SUBST(UUID_SHARED_LIBADD)
 
-  PHP_ADD_LIBRARY_WITH_PATH(uuid, $PHP_UUID_DIR/lib, 
UUID_SHARED_LIBADD)
+  AC_MSG_CHECKING(PHP version)
+  AC_TRY_COMPILE([], [
+#ifdef __APPLE__
+#error compiling on darwin
+#endif
+],
+[],
+[export UUID_ON_MAC=true])
+
+
+  if test $UUID_ON_MAC != "true"; then
+    PHP_SUBST(UUID_SHARED_LIBADD)
+    PHP_ADD_LIBRARY_WITH_PATH(uuid, $PHP_UUID_DIR/lib, 
UUID_SHARED_LIBADD)
+  fi
   export CPPFLAGS="$OLD_CPPFLAGS"
 
   export OLD_CPPFLAGS="$CPPFLAGS"
@@ -35,7 +48,6 @@ if test "$PHP_UUID" != "no"; then
   export CPPFLAGS="$OLD_CPPFLAGS"
 
 
-  PHP_SUBST(UUID_SHARED_LIBADD)
   AC_DEFINE(HAVE_UUID, 1, [ ])
 
   PHP_NEW_EXTENSION(uuid, uuid.c , $ext_shared)
diff -urp uuid-1.0.2/php_uuid.h uuid-1.0.2.mine/php_uuid.h
--- uuid-1.0.2/php_uuid.h	2008-04-01 
08:59:22.000000000 -0700
+++ uuid-1.0.2.mine/php_uuid.h	2008-08-14 
09:00:23.000000000 -0700
@@ -145,6 +145,8 @@ ZEND_END_ARG_INFO()
 #endif
 
 #endif /* HAVE_UUID_VARIANT */
+
+#if HAVE_UUID_TIME
 PHP_FUNCTION(uuid_time);
 #if (PHP_MAJOR_VERSION >= 5)
 ZEND_BEGIN_ARG_INFO_EX(uuid_time_arg_info, 
ZEND_SEND_BY_VAL, ZEND_RETURN_VALUE, 1)
@@ -153,7 +155,9 @@ ZEND_END_ARG_INFO()
 #else /* PHP 4.x */
 #define uuid_time_arg_info NULL
 #endif
+#endif /* HAVE_UUID_TIME */
 
+#if HAVE_UUID_MAC
 PHP_FUNCTION(uuid_mac);
 #if (PHP_MAJOR_VERSION >= 5)
 ZEND_BEGIN_ARG_INFO_EX(uuid_mac_arg_info, ZEND_SEND_BY_VAL, 
ZEND_RETURN_VALUE, 1)
@@ -162,6 +166,7 @@ ZEND_END_ARG_INFO()
 #else /* PHP 4.x */
 #define uuid_mac_arg_info NULL
 #endif
+#endif /* HAVE_UUID_MAC */
 
 PHP_FUNCTION(uuid_parse);
 #if (PHP_MAJOR_VERSION >= 5)
@@ -185,6 +190,15 @@ ZEND_END_ARG_INFO()
 } // extern "C" 
 #endif
 
+#ifndef UUID_TYPE_DCE_TIME
+#ifdef __APPLE__
+/* UUID Type definitions */
+#define UUID_TYPE_DCE_TIME   1
+#define UUID_TYPE_DCE_RANDOM 4
+#endif /* __MACOS__ */
+#endif /* UUID_TYPE_DCE_TIME */
+
+
 /* mirrored PHP Constants */
 #define UUID_TYPE_DEFAULT 0
 #define UUID_TYPE_TIME UUID_TYPE_DCE_TIME
@@ -194,7 +208,7 @@ ZEND_END_ARG_INFO()
 #define UUID_TYPE_NULL -1
 #define UUID_TYPE_INVALID -42
 
-#endif /* PHP_HAVE_UUID */
+#endif /* HAVE_UUID */
 
 #endif /* PHP_UUID_H */
 
diff -urp uuid-1.0.2/tests/uuid_mac.phpt uuid-
1.0.2.mine/tests/uuid_mac.phpt
--- uuid-1.0.2/tests/uuid_mac.phpt	2008-04-01 
08:59:22.000000000 -0700
+++ uuid-1.0.2.mine/tests/uuid_mac.phpt	2008-08-14 
10:21:57.000000000 -0700
@@ -5,6 +5,8 @@ uuid_mac() function
 
 if(!extension_loaded('uuid')) die('skip ');
 
+if(!function_exists('uuid_mac')) die('skip not compiled in 
(HAVE_UUID_MAC)');
+
  ?>
 --FILE--
 <?php
diff -urp uuid-1.0.2/tests/uuid_time.phpt uuid-
1.0.2.mine/tests/uuid_time.phpt
--- uuid-1.0.2/tests/uuid_time.phpt	2008-04-01 
08:59:22.000000000 -0700
+++ uuid-1.0.2.mine/tests/uuid_time.phpt	2008-08-14 
10:22:50.000000000 -0700
@@ -5,6 +5,8 @@ uuid_time() function
 
 if(!extension_loaded('uuid')) die('skip ');
 
+if(!function_exists('uuid_time')) die('skip not compiled in 
(HAVE_UUID_TIME)');
+
  ?>
 --FILE--
 <?php
diff -urp uuid-1.0.2/uuid.c uuid-1.0.2.mine/uuid.c
--- uuid-1.0.2/uuid.c	2008-04-01 08:59:22.000000000 -0700
+++ uuid-1.0.2.mine/uuid.c	2008-08-14 
08:52:05.000000000 -0700
@@ -40,8 +40,12 @@ function_entry uuid_functions[] = {
 #if HAVE_UUID_VARIANT
 	PHP_FE(uuid_variant        , uuid_variant_arg_info)
 #endif /* HAVE_UUID_VARIANT */
+#if HAVE_UUID_TIME
 	PHP_FE(uuid_time           , uuid_time_arg_info)
+#endif /* HAVE_UUID_TIME */
+#if HAVE_UUID_MAC
 	PHP_FE(uuid_mac            , uuid_mac_arg_info)
+#endif /* HAVE_UUID_MAC */
 	PHP_FE(uuid_parse          , uuid_parse_arg_info)
 	PHP_FE(uuid_unparse        , uuid_unparse_arg_info)
 	{ NULL, NULL, NULL }

for anyone using this patch,  you will need to remove the broken lines or you will get an error from patch.

Took too long fixing this patch (the bug tracker formatted it 
in unfortunate ways) so for those wanting to try it out:

http://pastie.org/435461

If this patch is still needed please update it, or better, open a PR on https://github.com/php/pecl-networking-uuid

No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.

I tried to compile this extension with PHP 7.2 and this issue still arises.

Will try to figure out an updated patch for it, albeit my C skills are very rusty :)