build: use PRODUCT_DIR_ABS for MODULESDIR

This commit updates the MODULESDIR value to be the absolute path to the
modules directoy in the build output directory.

The motivation for this that it allows us to not have to specify the
environment variable OPENSSL_MODULES when running node and enabling
FIPS.

common.gypi

@@ -86,16 +86,19 @@
         'os_posix': 0,
         'v8_postmortem_support%': 0,
         'obj_dir': '<(PRODUCT_DIR)/obj',
+        'obj_dir_abs': '<(PRODUCT_DIR_ABS)/obj',
         'v8_base': '<(PRODUCT_DIR)/lib/libv8_snapshot.a',
       }, {
         'os_posix': 1,
         'v8_postmortem_support%': 1,
       }],
       ['GENERATOR == "ninja"', {
         'obj_dir': '<(PRODUCT_DIR)/obj',
+        'obj_dir_abs': '<(PRODUCT_DIR_ABS)/obj',
         'v8_base': '<(PRODUCT_DIR)/obj/tools/v8_gypfiles/libv8_snapshot.a',
       }, {
         'obj_dir%': '<(PRODUCT_DIR)/obj.target',
+        'obj_dir_abs%': '<(PRODUCT_DIR_ABS)/obj.target',
         'v8_base': '<(PRODUCT_DIR)/obj.target/tools/v8_gypfiles/libv8_snapshot.a',
       }],
       ['openssl_fips != ""', {
@@ -106,6 +109,7 @@
       ['OS=="mac"', {
         'clang%': 1,
         'obj_dir%': '<(PRODUCT_DIR)/obj.target',
+        'obj_dir_abs%': '<(PRODUCT_DIR_ABS)/obj.target',
         'v8_base': '<(PRODUCT_DIR)/libv8_snapshot.a',
       }],
       ['target_arch in "ppc64 s390x"', {
@@ -565,7 +569,7 @@
       }],
       ['node_use_openssl=="true"', {
         'defines': [
-          'MODULESDIR="<(obj_dir)/deps/openssl/"',
+          'MODULESDIR="<(obj_dir_abs)/deps/openssl/lib/openssl-modules"',
         ],
       }],
     ],