From 0314027051fd931ef4bd06591fdf30ea03a0de3d Mon Sep 17 00:00:00 2001
From: Vincent Torri <vincent.torri@gmail.com>
Date: Tue, 20 Nov 2018 21:08:23 +0100
Subject: [PATCH] Allow installation of lz4 for Windows (MSYS2 or when
 cross-compiling)

---
 Makefile          |  2 +-
 lib/Makefile      | 15 +++++++++++++--
 programs/Makefile |  2 +-
 3 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index 2f8b85c..091b256 100644
--- a/Makefile
+++ b/Makefile
@@ -89,7 +89,7 @@ clean:
 #-----------------------------------------------------------------------------
 # make install is validated only for Linux, OSX, BSD, Hurd and Solaris targets
 #-----------------------------------------------------------------------------
-ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku MidnightBSD))
+ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku MidnightBSD MINGW32_NT-6.1 MINGW64_NT-6.1))
 HOST_OS = POSIX
 
 .PHONY: install uninstall
diff --git a/lib/Makefile b/lib/Makefile
index f535435..fc96bbd 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -73,7 +73,11 @@ else
 	SHARED_EXT_VER = $(SHARED_EXT).$(LIBVER)
 endif
 
+ifneq (,$(filter Windows%,$(OS)))
+LIBLZ4 = liblz4-$(LIBVER_MAJOR)
+else
 LIBLZ4 = liblz4.$(SHARED_EXT_VER)
+endif
 
 .PHONY: default
 default: lib-release
@@ -126,7 +130,7 @@ clean:
 #-----------------------------------------------------------------------------
 # make install is validated only for Linux, OSX, BSD, Hurd and Solaris targets
 #-----------------------------------------------------------------------------
-ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku MidnightBSD))
+ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku MidnightBSD MINGW32_NT-6.1 MINGW64_NT-6.1))
 
 .PHONY: listL120
 listL120:  # extract lines >= 120 characters in *.{c,h}, by Takayuki Matsuoka (note : $$, for Makefile compatibility)
@@ -140,6 +144,8 @@ PREFIX      ?= /usr/local
 prefix      ?= $(PREFIX)
 EXEC_PREFIX ?= $(prefix)
 exec_prefix ?= $(EXEC_PREFIX)
+BINDIR      ?= $(exec_prefix)/bin
+bindir      ?= $(BINDIR)
 LIBDIR      ?= $(exec_prefix)/lib
 libdir      ?= $(LIBDIR)
 INCLUDEDIR  ?= $(prefix)/include
@@ -170,7 +176,7 @@ liblz4.pc: liblz4.pc.in Makefile
           $< >$@
 
 install: lib liblz4.pc
-	$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(pkgconfigdir)/ $(DESTDIR)$(includedir)/ $(DESTDIR)$(libdir)/
+	$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(pkgconfigdir)/ $(DESTDIR)$(includedir)/ $(DESTDIR)$(libdir)/ $(DESTDIR)$(bindir)/
 	$(Q)$(INSTALL_DATA) liblz4.pc $(DESTDIR)$(pkgconfigdir)/
 	@echo Installing libraries
 ifeq ($(BUILD_STATIC),yes)
@@ -178,9 +184,14 @@ ifeq ($(BUILD_STATIC),yes)
 	$(Q)$(INSTALL_DATA) lz4frame_static.h $(DESTDIR)$(includedir)/lz4frame_static.h
 endif
 ifeq ($(BUILD_SHARED),yes)
+ifneq (,$(filter Windows%,$(OS)))
+	$(Q)$(INSTALL_PROGRAM) dll/$(LIBLZ4).dll $(DESTDIR)$(bindir)
+	$(Q)$(INSTALL_PROGRAM) dll/liblz4.lib $(DESTDIR)$(libdir)
+else
 	$(Q)$(INSTALL_PROGRAM) liblz4.$(SHARED_EXT_VER) $(DESTDIR)$(libdir)
 	$(Q)ln -sf liblz4.$(SHARED_EXT_VER) $(DESTDIR)$(libdir)/liblz4.$(SHARED_EXT_MAJOR)
 	$(Q)ln -sf liblz4.$(SHARED_EXT_VER) $(DESTDIR)$(libdir)/liblz4.$(SHARED_EXT)
+endif
 endif
 	@echo Installing headers in $(includedir)
 	$(Q)$(INSTALL_DATA) lz4.h $(DESTDIR)$(includedir)/lz4.h
diff --git a/programs/Makefile b/programs/Makefile
index bd33d9b..8a2ad65 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -109,7 +109,7 @@ clean:
 #-----------------------------------------------------------------------------
 # make install is validated only for Linux, OSX, BSD, Hurd and Solaris targets
 #-----------------------------------------------------------------------------
-ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku MidnightBSD))
+ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku MidnightBSD MINGW32_NT-6.1 MINGW64_NT-6.1))
 
 unlz4: lz4
 	ln -s lz4$(EXT) unlz4$(EXT)