--- xxHash.orig/Makefile	2021-03-11 21:46:58.129999604 +0100
+++ xxHash/Makefile	2021-03-11 21:47:17.273332927 +0100
@@ -49,11 +49,7 @@
 UNAME := $(shell uname)
 
 # Define *.exe as extension for Windows systems
-ifneq (,$(filter Windows%,$(OS)))
 EXT =.exe
-else
-EXT =
-endif
 
 # OS X linker doesn't support -soname, and use different extension
 # see: https://developer.apple.com/library/mac/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/DynamicLibraryDesignGuidelines.html
@@ -63,8 +59,8 @@
 	SHARED_EXT_VER = $(LIBVER).$(SHARED_EXT)
 	SONAME_FLAGS = -install_name $(LIBDIR)/libxxhash.$(SHARED_EXT_MAJOR) -compatibility_version $(LIBVER_MAJOR) -current_version $(LIBVER)
 else
-	SONAME_FLAGS = -Wl,-soname=libxxhash.$(SHARED_EXT).$(LIBVER_MAJOR)
-	SHARED_EXT = so
+	SONAME_FLAGS = -shared -Wl,--out-implib,libxxhash.dll.a -o libxxhash.$(SHARED_EXT).$(LIBVER_MAJOR)
+	SHARED_EXT = dll
 	SHARED_EXT_MAJOR = $(SHARED_EXT).$(LIBVER_MAJOR)
 	SHARED_EXT_VER = $(SHARED_EXT).$(LIBVER)
 endif
@@ -119,9 +115,7 @@
 	$(AR) $(ARFLAGS) $@ $^
 
 $(LIBXXH): LDFLAGS += -shared
-ifeq (,$(filter Windows%,$(OS)))
 $(LIBXXH): CFLAGS += -fPIC
-endif
 ifeq ($(DISPATCH),1)
 $(LIBXXH): xxh_x86dispatch.c
 endif
@@ -444,11 +438,13 @@
 .PHONY: install
 install: lib libxxhash.pc xxhsum  ## install libraries, CLI, links and man page
 	@echo Installing libxxhash
+	$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(BINDIR)
 	$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(LIBDIR)
 	$(Q)$(INSTALL_DATA) libxxhash.a $(DESTDIR)$(LIBDIR)
-	$(Q)$(INSTALL_PROGRAM) $(LIBXXH) $(DESTDIR)$(LIBDIR)
-	$(Q)ln -sf $(LIBXXH) $(DESTDIR)$(LIBDIR)/libxxhash.$(SHARED_EXT_MAJOR)
-	$(Q)ln -sf $(LIBXXH) $(DESTDIR)$(LIBDIR)/libxxhash.$(SHARED_EXT)
+	$(Q)$(INSTALL_PROGRAM) libxxhash.dll.a $(DESTDIR)$(BINDIR)
+	$(Q)$(INSTALL_PROGRAM) $(LIBXXH) $(DESTDIR)$(BINDIR)
+	$(Q)ln -sf $(LIBXXH) $(DESTDIR)$(BINDIR)/libxxhash.$(SHARED_EXT_MAJOR)
+	$(Q)ln -sf $(LIBXXH) $(DESTDIR)$(BINDIR)/libxxhash.$(SHARED_EXT)
 	$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(INCLUDEDIR)   # includes
 	$(Q)$(INSTALL_DATA) xxhash.h $(DESTDIR)$(INCLUDEDIR)
 	$(Q)$(INSTALL_DATA) xxh3.h $(DESTDIR)$(INCLUDEDIR) # for compatibility, will be removed in v0.9.0
@@ -460,10 +456,10 @@
 	$(Q)$(INSTALL_DATA) libxxhash.pc $(DESTDIR)$(PKGCONFIGDIR)/
 	@echo Installing xxhsum
 	$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(BINDIR)/ $(DESTDIR)$(MANDIR)/
-	$(Q)$(INSTALL_PROGRAM) xxhsum $(DESTDIR)$(BINDIR)/xxhsum
-	$(Q)ln -sf xxhsum $(DESTDIR)$(BINDIR)/xxh32sum
-	$(Q)ln -sf xxhsum $(DESTDIR)$(BINDIR)/xxh64sum
-	$(Q)ln -sf xxhsum $(DESTDIR)$(BINDIR)/xxh128sum
+	$(Q)$(INSTALL_PROGRAM) xxhsum$(EXT) $(DESTDIR)$(BINDIR)/xxhsum$(EXT)
+	$(Q)ln -sf xxhsum$(EXT) $(DESTDIR)$(BINDIR)/xxh32sum$(EXT)
+	$(Q)ln -sf xxhsum$(EXT) $(DESTDIR)$(BINDIR)/xxh64sum$(EXT)
+	$(Q)ln -sf xxhsum$(EXT) $(DESTDIR)$(BINDIR)/xxh128sum$(EXT)
 	@echo Installing man pages
 	$(Q)$(INSTALL_DATA) xxhsum.1 $(DESTDIR)$(MANDIR)/xxhsum.1
 	$(Q)ln -sf xxhsum.1 $(DESTDIR)$(MANDIR)/xxh32sum.1
@@ -481,10 +477,10 @@
 	$(Q)$(RM) $(DESTDIR)$(INCLUDEDIR)/xxh3.h
 	$(Q)$(RM) $(DESTDIR)$(INCLUDEDIR)/xxh_x86dispatch.h
 	$(Q)$(RM) $(DESTDIR)$(PKGCONFIGDIR)/libxxhash.pc
-	$(Q)$(RM) $(DESTDIR)$(BINDIR)/xxh32sum
-	$(Q)$(RM) $(DESTDIR)$(BINDIR)/xxh64sum
-	$(Q)$(RM) $(DESTDIR)$(BINDIR)/xxh128sum
-	$(Q)$(RM) $(DESTDIR)$(BINDIR)/xxhsum
+	$(Q)$(RM) $(DESTDIR)$(BINDIR)/xxh32sum$(EXT)
+	$(Q)$(RM) $(DESTDIR)$(BINDIR)/xxh64sum$(EXT)
+	$(Q)$(RM) $(DESTDIR)$(BINDIR)/xxh128sum$(EXT)
+	$(Q)$(RM) $(DESTDIR)$(BINDIR)/xxhsum$(EXT)
 	$(Q)$(RM) $(DESTDIR)$(MANDIR)/xxh32sum.1
 	$(Q)$(RM) $(DESTDIR)$(MANDIR)/xxh64sum.1
 	$(Q)$(RM) $(DESTDIR)$(MANDIR)/xxh128sum.1