diff --git a/arch/arm/src/common/Toolchain.defs b/arch/arm/src/common/Toolchain.defs
index d4dd89aab78..ac8cfb58219 100644
--- a/arch/arm/src/common/Toolchain.defs
+++ b/arch/arm/src/common/Toolchain.defs
@@ -232,9 +232,11 @@ else
   # Wrong warning array subscript [0] is outside array bounds:
   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105523
 
-  GCCVER = $(shell $(CC) --version | grep gcc | sed -r 's/.* ([0-9]+\.[0-9]+\.[0-9]+).*/\1/')
+  ifeq ($(GCCVER),)
+    export GCCVER := $(shell $(CC) --version | grep gcc | sed -r 's/.* ([0-9]+\.[0-9]+).*/\1/')
+  endif
 
-  ifeq ($(GCCVER),12.2.1)
+  ifeq ($(GCCVER),12.2)
     ARCHOPTIMIZATION += --param=min-pagesize=0
     ifeq ($(CONFIG_ARCH_RAMFUNCS),y)
       LDFLAGS += --no-warn-rwx-segments
diff --git a/arch/xtensa/src/esp32/Make.defs b/arch/xtensa/src/esp32/Make.defs
index ebc3a520032..27f55b52e29 100644
--- a/arch/xtensa/src/esp32/Make.defs
+++ b/arch/xtensa/src/esp32/Make.defs
@@ -232,7 +232,9 @@ ifeq ($(CONFIG_ESP32_WIFI),y)
 CHIP_CSRCS += esp32_wlan.c esp32_wifi_utils.c esp32_wifi_adapter.c
 EXTRA_LIBS += -lcore -lnet80211 -lpp -lsmartconfig -lespnow -lwpa_supplicant
 
-GCCVER = $(shell $(CC) --version | grep gcc | sed -r 's/.* ([0-9]+\.[0-9]+).*/\1/')
+ifeq ($(GCCVER),)
+  export GCCVER := $(shell $(CC) --version | grep gcc | sed -r 's/.* ([0-9]+\.[0-9]+).*/\1/')
+endif
 ifeq ($(GCCVER),12.2)
   chip/esp32_wifi_adapter.c_CFLAGS += -Wno-maybe-uninitialized
 endif
diff --git a/libs/libxx/libcxx.defs b/libs/libxx/libcxx.defs
index f4312d95888..50963744669 100644
--- a/libs/libxx/libcxx.defs
+++ b/libs/libxx/libcxx.defs
@@ -84,7 +84,10 @@ libcxx/src/filesystem/operations.cpp_CXXFLAGS += -Wno-shadow
 #  2676 |             const basic_string __temp (__first, __last, __alloc());
 #       |                                ^~~~~~
 
-GCCVER = $(shell $(CXX) --version | grep g++ | sed -r 's/.* ([0-9]+\.[0-9]+).*/\1/')
+ifeq ($(GCCVER),)
+  export GCCVER = $(shell $(CXX) --version | grep g++ | sed -r 's/.* ([0-9]+\.[0-9]+).*/\1/')
+endif
+
 ifeq ($(GCCVER),12.2)
   libcxx/src/filesystem/operations.cpp_CXXFLAGS += -Wno-maybe-uninitialized
 endif