implement @bukka's suggestion

Author: dunglas

build/php.m4

@@ -764,6 +764,23 @@ AC_DEFUN([PHP_BUILD_SHARED],[
   php_lo=$shared_lo
 ])
 
+dnl
+dnl PHP_BUILD_SHARED_DYLIB
+dnl
+AC_DEFUN([PHP_BUILD_SHARED_DYLIB],[
+  PHP_BUILD_PROGRAM
+  OVERALL_TARGET=libphp.dylib
+  php_sapi_module=shared
+
+  php_c_pre=$shared_c_pre
+  php_c_meta=$shared_c_meta
+  php_c_post=$shared_c_post
+  php_cxx_pre=$shared_cxx_pre
+  php_cxx_meta=$shared_cxx_meta
+  php_cxx_post=$shared_cxx_post
+  php_lo=$shared_lo
+])
+
 dnl
 dnl PHP_BUILD_STATIC
 dnl
@@ -876,6 +893,7 @@ AC_DEFUN([PHP_SELECT_SAPI],[
     case "$2" in
     static[)] PHP_BUILD_STATIC;;
     shared[)] PHP_BUILD_SHARED;;
+    shared-dylib[)] PHP_BUILD_SHARED_DYLIB;;
     bundle[)] PHP_BUILD_BUNDLE;;
     esac
     install_sapi="install-sapi"

sapi/embed/config.m4

@@ -11,8 +11,10 @@ if test "$PHP_EMBED" != "no"; then
   case "$PHP_EMBED" in
     yes|shared)
       LIBPHP_CFLAGS="-shared"
-      PHP_EMBED_TYPE=shared
-      AS_CASE(["$host_alias"], [*darwin*], [SAPI_SHARED="libs/libphp.dylib"], [])
+      AS_CASE(["$host_alias"], [*darwin*], [
+        SAPI_SHARED="libs/libphp.dylib"
+        PHP_EMBED_TYPE=shared-dylib
+      ], [PHP_EMBED_TYPE=shared])
       INSTALL_IT="\$(mkinstalldirs) \$(INSTALL_ROOT)\$(prefix)/lib; \$(INSTALL) -m 0755 $SAPI_SHARED \$(INSTALL_ROOT)\$(prefix)/lib"
       ;;
     static)
@@ -27,9 +29,6 @@ if test "$PHP_EMBED" != "no"; then
   if test "$PHP_EMBED_TYPE" != "no"; then
     PHP_SUBST(LIBPHP_CFLAGS)
     PHP_SELECT_SAPI(embed, $PHP_EMBED_TYPE, php_embed.c, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1)
-    if test "$SAPI_SHARED" = "libs/libphp.dylib"; then
-      OVERALL_TARGET=libphp.dylib
-    fi
     PHP_INSTALL_HEADERS([sapi/embed/php_embed.h])
   fi
   AC_MSG_RESULT([$PHP_EMBED_TYPE])