fix(ios): Compile nim-sds as a nim module

On IOS we're free to compile nim-sds as a nim module  nim_status_client, nim-sds and status-go are all static libs.

With this approach we're fixing the duplicate symbols from both nim runtimes (nim_status_client and nim-sds). We're free to re-enable `lto` without crashing the app

Author: alexjba

.gitmodules

@@ -127,3 +127,9 @@
 [submodule "vendor/status-keycard-qt"]
 	path = vendor/status-keycard-qt
 	url = https://github.com/status-im/status-keycard-qt
+[submodule "vendor/nim-sds"]
+	path = vendor/nim-sds
+	url = https://github.com/logos-messaging/nim-sds.git
+[submodule "vendor/nim-libp2p"]
+	path = vendor/nim-libp2p
+	url = https://github.com/status-im/nim-libp2p.git

config.nims

@@ -9,6 +9,10 @@ else:
 --define:useOpenSSL3
 --parallelBuild:0  # 0 == auto nr. of cores
 
+when defined(ios):
+  switch("path", "vendor/nim-sds")
+  switch("path", "vendor/nim-libp2p")
+
 if hostOS == "macosx":
   echo "Building for macOS"
   --dynlibOverrideAll # don't use dlopen()

mobile/Makefile

@@ -53,7 +53,6 @@ else ifeq ($(OS),ios)
 		SHELL=/bin/sh
 endif
 	@echo "Copying library to mobile lib directory"
-	@cp $(NIM_SDS_SOURCE_DIR)/build/libsds$(LIB_EXT) $(LIB_PATH)/libsds$(LIB_EXT)
 	@cp ../vendor/status-go/build/bin/libstatus$(LIB_EXT) $(LIB_PATH)/libstatus$(LIB_EXT)
 
 $(STATUS_Q_LIB): $(STATUS_Q_FILES) $(STATUS_Q_SCRIPT) $(STATUS_Q_UI_FILES)

mobile/scripts/buildNimStatusClient.sh

@@ -76,7 +76,7 @@ NIM_FLAGS=(
 if [ "$DEBUG" -eq 1 ]; then
     NIM_FLAGS+=(-d:debug -d:nimTypeNames)
 else
-    NIM_FLAGS+=(-d:release -d:production)
+    NIM_FLAGS+=(-d:release -d:lto -d:production)
 fi
 
 # build status-client with feature flags

mobile/wrapperApp/Status.pro

@@ -81,7 +81,7 @@ ios {
             -framework Foundation
 
     # Base libraries (always included)
-    LIBS += -L$$PWD/../lib/$$LIB_PREFIX -lnim_status_client -lDOtherSideStatic -lstatusq -lstatus -lsds -lssl_3 -lcrypto_3 -lqzxing -lresolv -lqrcodegen
+    LIBS += -L$$PWD/../lib/$$LIB_PREFIX -lnim_status_client -lDOtherSideStatic -lstatusq -lstatus -lssl_3 -lcrypto_3 -lqzxing -lresolv -lqrcodegen
 
     contains(DEFINES, FLAG_KEYCARD_ENABLED) {
         # Use entitlements with NFC support (requires paid Apple Developer account)

src/nim_status_client.nim

@@ -26,6 +26,10 @@ when defined(macosx) and defined(arm64):
 when defined(windows):
     {.link: "../status.o".}
 
+
+when defined(ios):
+  import library/libsds
+
 when defined(USE_QML_SERVER):
   # get the host OS and localhost IP
   # the host OS is the OS that compiles the app, not the OS that runs the app