Explicitly and manually define _MSC_VER on Windows

sneumann · Nov 27, 2021 · d76a1fe · d76a1fe
1 parent 1aeecc6
commit d76a1fe
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/Makevars b/src/Makevars
@@ -103,7 +103,7 @@ ARCH_OBJS=./boost/libs/filesystem/src/path_traits.o \
 ./boost/libs/thread/src/win32/tss_dll.o \
 ./boost/libs/thread/src/win32/thread.o \
 ./boost_aux/boost/nowide/iostream.o
-ARCH_CPPFLAGS=-fpermissive -DWINDOWS_NATIVE -DWIN32 -DBOOST_HAS_WINTHREADS -DBOOST_THREAD_BUILD_LIB
+ARCH_CPPFLAGS=-fpermissive -DWINDOWS_NATIVE -DWIN32 -D_MSC_VER -DBOOST_HAS_WINTHREADS -DBOOST_THREAD_BUILD_LIB
 ARCH_LIBS=-lws2_32 -lz
 RHDF5_LIBS=$(shell echo 'Rhdf5lib::pkgconfig("PKG_CXX_LIBS")'| "${R_HOME}/bin/R" --vanilla --slave)  
 else