bundle: OSX use -rpath for bundled libevent

.github/workflows/ci-scripts-build.yml

@@ -149,6 +149,9 @@ jobs:
       run: |
         sudo apt-get -y install doxygen python-is-python3 python3-breathe
         make -C documentation
+    - name: otool
+      if: runner.os == 'macOS'
+      run: otool -D -L bundle/usr/*/lib/*.dylib lib/*/*.dylib bin/*/pvxinfo
     - name: Host info
       run: python .ci/cue.py --add-path "{TOP}/bin/{EPICS_HOST_ARCH}" --add-path "{TOP}/bundle/usr/{EPICS_HOST_ARCH}/lib" exec pvxinfo -D
     - name: Run main module tests

bundle/Makefile

@@ -30,6 +30,8 @@ CMAKEFLAGS += -DEVENT__DISABLE_SAMPLES=ON
 CMAKEFLAGS += -DEVENT__DISABLE_TESTS=ON
 CMAKEFLAGS += -DEVENT__DISABLE_BENCHMARK=ON
 
+CMAKEFLAGS += -DCMAKE_MACOSX_RPATH=ON -DCMAKE_SKIP_INSTALL_RPATH=OFF
+
 # searched for toolchain files
 CMAKEFLAGS += -DCMAKE_MODULE_PATH:DIR="$(abspath $(TOP)/bundle/cmake)"
 
@@ -120,7 +122,7 @@ ifneq (,$(filter %mingw,$(T_A)))
 ifeq (NO,$(SHARED_LIBRARIES))
 	$(CP) $(LIBEVENT_$(T_A))/lib/libevent_core.a $(LIBEVENT_$(T_A))/lib/event_core.lib
 # HACK: when STATIC_BUILD=YES we (in configure/RULES_PVXS_MODULE) inject the event_core
-#       dependency via <target>_LIBS += event_core which requires end existance of
+#       dependency via <target>_LIBS += event_core which requires the existance of
 #       $(event_core_DIR)/event_core.lib however, cmake outputs the *nix style name
 #       libevent_core.a (probably because it can coexist with the dll import library
 #       named libevent_core.dll.a).

configure/CONFIG_PVXS_MODULE

@@ -28,6 +28,9 @@ LIBEVENT_BUNDLE_LIBS += $(LIBEVENT_BUNDLE_LIBS_POSIX_$(POSIX))
 LIBEVENT_SYS_LIBS_WIN32 = bcrypt iphlpapi netapi32 ws2_32
 LIBEVENT_SYS_LIBS += $(LIBEVENT_SYS_LIBS_$(OS_CLASS))
 
+LIBEVENT_BUNDLE_LDFLAGS_Darwin_NO = -Wl,-rpath,$(LIBEVENT)/lib
+LIBEVENT_BUNDLE_LDFLAGS += $(LIBEVENT_BUNDLE_LDFLAGS_$(OS_CLASS)_$(STATIC_BUILD))
+
 event_core_DIR = $(LIBEVENT)/lib
 event_pthreads_DIR = $(LIBEVENT)/lib
 

configure/RULES_PVXS_MODULE

@@ -12,6 +12,7 @@ endif
 _PVXS_CHECK_VARS := PROD TESTPROD LIB $(PROD) $(TESTPROD) $(LIBRARY)
 
 ifeq (,$(LIBEVENT))
+# libevent in default search path
 
 # $(1) is PROD or LIBRARY name
 define _PVXS_ADD_LIBEVENT
@@ -20,11 +21,13 @@ $(1)_SYS_LIBS := $$($(1)_SYS_LIBS) $$(if $$(filter pvxs,$$($(1)_LIBS)),$$(LIBEVE
 endef
 
 else
+# libevent in specific location
 
 # $(1) is PROD or LIBRARY name
 define _PVXS_ADD_LIBEVENT
 $(1)_LIBS     := $$($(1)_LIBS)     $$(if $$(filter pvxs,$$($(1)_LIBS)),$$(LIBEVENT_BUNDLE_LIBS))
 $(1)_SYS_LIBS := $$($(1)_SYS_LIBS) $$(if $$(filter pvxs,$$($(1)_LIBS)),$$(LIBEVENT_SYS_LIBS))
+$(1)_LDFLAGS  := $$($(1)_LDFLAGS)  $$(if $$(filter pvxs,$$($(1)_LIBS)),$$(LIBEVENT_BUNDLE_LDFLAGS))
 endef
 
 endif