Merge remote-tracking branch 'origin/CMakeLists_improv' into integration_2025_w12 (!3329)

NR build improvements

This MR is an attempt to improve compilation of NR softmodems by
removing some of NR-LTE cross-compilation (at the cost of a small dummy
file for nr-softmodem) and one small gNB-NRUE cross-compilation.

CMakeLists.txt

@@ -1181,7 +1181,6 @@ set(NR_L2_SRC_UE
   ${NR_SDAP_SRC}
   ${NR_UE_RRC_DIR}/L2_interface_ue.c
   ${NR_UE_RRC_DIR}/main_ue.c
-  ${NR_RRC_DIR}/nr_rrc_config.c
   ${NR_UE_RRC_DIR}/rrc_UE.c
   ${NR_UE_RRC_DIR}/rrc_nsa.c
   ${NR_UE_RRC_DIR}/rrc_timers_and_constants.c
@@ -1335,10 +1334,9 @@ if(E2_AGENT)
 endif()
 
 add_library(L2_LTE_NR
-  ${L2_RRC_SRC}
-  ${MAC_SRC}
+  # temporary solution until 4G/5G code completely untangled (as evidenced by deletion of the following file)
+  ${MAC_DIR}/dummy_functions.c
   ${ENB_APP_SRC}
-  ${MCE_APP_SRC}
 )
 
 target_link_libraries(L2_LTE_NR PRIVATE f1ap s1ap nr_rrc)
@@ -1350,12 +1348,6 @@ add_library(L2_UE
 target_link_libraries(L2_UE PRIVATE asn1_nr_rrc_hdrs asn1_lte_rrc_hdrs)
 target_link_libraries(L2_UE PRIVATE GTPV1U)
 
-add_library(L2_UE_LTE_NR
-  ${L2_RRC_SRC_UE}
-  ${MAC_SRC_UE}
-)
-target_link_libraries(L2_UE_LTE_NR PRIVATE asn1_nr_rrc_hdrs asn1_lte_rrc_hdrs)
-
 target_link_libraries(L2_UE PRIVATE asn1_lte_rrc_hdrs)
 
 add_library( NR_L2_UE ${NR_L2_SRC_UE} ${MAC_NR_SRC_UE} )
@@ -1893,12 +1885,13 @@ add_executable(nr-uesoftmodem
   ${OPENAIR2_DIR}/LAYER2/NR_MAC_COMMON/nr_mac_common.c
   ${OPENAIR2_DIR}/LAYER2/NR_MAC_COMMON/nr_mac_common_tdd.c
   ${OPENAIR1_DIR}/PHY/TOOLS/phy_scope_interface.c
+  ${PHY_INTERFACE_DIR}/queue_t.c
   )
 
 target_link_libraries(nr-uesoftmodem PRIVATE
   -Wl,--start-group
   nr_rrc SECURITY UTIL HASHTABLE SCHED_RU_LIB SCHED_NR_UE_LIB
-  PHY_COMMON PHY_NR_COMMON PHY_NR_UE NR_L2_UE L2_UE_LTE_NR MAC_NR_COMMON NFAPI_LIB NFAPI_PNF_LIB
+  PHY_COMMON PHY_NR_COMMON PHY_NR_UE NR_L2_UE MAC_NR_COMMON NFAPI_LIB NFAPI_PNF_LIB
   NFAPI_USER_LIB MISC_NFAPI_NR_LIB
   ITTI SIMU shlib_loader
   -Wl,--end-group z dl)
@@ -2106,7 +2099,7 @@ if (${T_TRACER})
         NFAPI_LIB NFAPI_PNF_LIB NFAPI_VNF_LIB NFAPI_USER_LIB
         MISC_NFAPI_LTE_LIB MISC_NFAPI_NR_LIB
         PHY_COMMON PHY PHY_UE PHY_NR PHY_NR_COMMON PHY_NR_UE PHY_RU
-        L2 L2_LTE L2_NR L2_LTE_NR L2_UE NR_L2_UE L2_UE_LTE_NR MAC_NR_COMMON MAC_UE_NR ngap
+        L2 L2_LTE L2_NR L2_LTE_NR L2_UE NR_L2_UE MAC_NR_COMMON MAC_UE_NR ngap
         CN_UTILS GTPV1U SCTP_CLIENT MME_APP LIB_NAS_UE NB_IoT SIMU OPENAIR0_LIB
         dfts config_internals nr_common crc_byte)
     if (TARGET ${i})