Add caching and cleaning for UCRT check

stan-dev · Sep 27, 2023 · 55e59f7 · 55e59f7
1 parent 373c783
commit 55e59f7
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Showing 3 changed files with 15 additions and 3 deletions.
diff --git a/make/compiler_flags b/make/compiler_flags
@@ -161,8 +161,19 @@ ifeq ($(OS),Windows_NT)
     CXXFLAGS_OS ?= -m64
   endif
 
-  UCRT_STRING := $(shell echo "\#include <windows.h>" | $(CXX) -E -dM -  | grep -i _UCRT)
-  ifneq (,$(UCRT_STRING))
+  ifeq (,$(wildcard $(MATH)make/ucrt))
+    UCRT_STRING := $(shell echo "#include <windows.h>" | $(CXX) -E -dM -  | findstr _UCRT)
+    ifneq (,$(UCRT_STRING))
+      IS_UCRT ?= true
+    else
+      IS_UCRT ?= false
+    endif
+    $(shell echo "IS_UCRT ?= $(IS_UCRT)" > $(MATH)make/ucrt)
+  else
+    -include $(MATH)make/ucrt
+  endif
+
+  ifeq ($(IS_UCRT),true)
     CXXFLAGS_OS += -D_UCRT
   endif
 

diff --git a/make/libraries b/make/libraries
@@ -140,7 +140,7 @@ ifeq (Linux, $(OS))
 endif
 
 ifeq (Windows_NT, $(OS))
-  ifneq (,$(UCRT_STRING))
+  ifeq ($(IS_UCRT),true)
     TBB_CXXFLAGS += -D_UCRT
   endif
 endif

diff --git a/makefile b/makefile
@@ -125,6 +125,7 @@ clean-deps:
 	@$(RM) $(call findfiles,test,*.d.*)
 	@$(RM) $(call findfiles,lib,*.d.*)
 	@$(RM) $(call findfiles,stan,*.dSYM)
+	@$(RM) $(call findfiles,make,ucrt)
 
 clean-all: clean clean-doxygen clean-deps clean-libraries