diff --git a/.efrocachemap b/.efrocachemap
index 8cd32b5e..3ab3368b 100644
--- a/.efrocachemap
+++ b/.efrocachemap
@@ -3948,8 +3948,8 @@
   "build/prefab/lib/linux_x86_64/release/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/e1/1a/ff5b7abc008154a71152a1635d33",
   "build/prefab/lib/linux_x86_64_server/debug/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/e6/93/af621822f3d5d6021efecac32235",
   "build/prefab/lib/linux_x86_64_server/release/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/3e/62/cc942c068c685832f6b7664bbb0f",
-  "build/prefab/lib/mac_x86_64/debug/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/05/0f/16be52fbac429f879c0098c10fb6",
-  "build/prefab/lib/mac_x86_64/release/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/9d/46/4171a95c4a33d126d2df87ef7dd7",
-  "build/prefab/lib/mac_x86_64_server/debug/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/f7/f0/e2ae6fc13d95b8c60d5219dfa811",
-  "build/prefab/lib/mac_x86_64_server/release/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/0c/9a/68e1c21d6cdb544da522f97ff715"
+  "build/prefab/lib/mac_x86_64/debug/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/d0/51/f99dfba5fffabe2706db7fac2472",
+  "build/prefab/lib/mac_x86_64/release/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/86/18/d8ddf9ba6fea3e35f941155151c7",
+  "build/prefab/lib/mac_x86_64_server/debug/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/cc/26/a468f189bef013ba7d92f543bd0b",
+  "build/prefab/lib/mac_x86_64_server/release/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/1b/fd/3fba7ca92c1ed628cbf7542eee4c"
 }
\ No newline at end of file
diff --git a/Makefile b/Makefile
index ecccd6fd..48d51a6f 100644
--- a/Makefile
+++ b/Makefile
@@ -804,11 +804,13 @@ ENV_SRC = tools/pcommand tools/batools/build.py
 .pycheckers: config/toolconfigsrc/pycheckers ${TOOL_CFG_SRC}
 	@${TOOL_CFG_INST} $< $@
 
-# Include anything as sources here that should require
+# Set this to 1 to skip environment checks.
+SKIP_CHECKENV ?= 0
+
 .cache/checkenv: ${ENV_SRC}
-	@tools/pcommand checkenv
-	@mkdir -p .cache
-	@touch .cache/checkenv
+	@if [ ${SKIP_CHECKENV} -ne 1 ]; then \
+      tools/pcommand checkenv && mkdir -p .cache && touch .cache/checkenv; \
+  fi
 
 # CMake build-type lowercase
 CM_BT_LC = $(shell echo $(CMAKE_BUILD_TYPE) | tr A-Z a-z)