Remove files to build libffi in mswin

These files were to build libffi from the bundled source, but are no
longer used since we stopped bundling the libffi sources in commit
e4f5296f065110fa83eb450d3a861253e76e534f.

The gemspec file is unchanged because fiddle gem itself still supports
ruby 2.5.

4 files changed, 0 insertions, 364 deletions

diff --git a/ext/fiddle/win32/fficonfig.h b/ext/fiddle/win32/fficonfig.h
deleted file mode 100644
index 776808159c..0000000000
--- a/ext/fiddle/win32/fficonfig.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#define HAVE_ALLOCA 1
-#define HAVE_MEMCPY 1
-#define HAVE_MEMORY_H 1
-#define HAVE_STDLIB_H 1
-#define HAVE_STRING_H 1
-#define HAVE_SYS_STAT_H 1
-#define HAVE_SYS_TYPES_H 1
-#if _MSC_VER >= 1600
-#define HAVE_INTTYPES_H 1
-#define HAVE_STDINT_H 1
-#endif
-
-#define SIZEOF_DOUBLE 8
-#if defined(X86_WIN64)
-#define SIZEOF_SIZE_T 8
-#else
-#define SIZEOF_SIZE_T 4
-#endif
-
-#define STACK_DIRECTION -1
-
-#define STDC_HEADERS 1
-
-#ifdef LIBFFI_ASM
-#define FFI_HIDDEN(name)
-#else
-#define FFI_HIDDEN
-#endif
-
diff --git a/ext/fiddle/win32/libffi-3.2.1-mswin.patch b/ext/fiddle/win32/libffi-3.2.1-mswin.patch
deleted file mode 100644
index f9100e703d..0000000000
--- a/ext/fiddle/win32/libffi-3.2.1-mswin.patch
+++ /dev/null
@@ -1,191 +0,0 @@
-diff -ru libffi-3.2.1/src/x86/ffi.c libffi-3.2.1/src/x86/ffi.c
---- libffi-3.2.1/src/x86/ffi.c	2014-11-08 21:47:24.000000000 +0900
-+++ libffi-3.2.1/src/x86/ffi.c	2014-12-25 18:46:14.806761900 +0900
-@@ -99,11 +99,13 @@
-        i != 0;
-        i--, p_arg += dir, p_argv += dir)
-     {
-+      size_t z;
-+
-       /* Align if necessary */
-       if ((sizeof(void*) - 1) & (size_t) argp)
-         argp = (char *) ALIGN(argp, sizeof(void*));
- 
--      size_t z = (*p_arg)->size;
-+      z = (*p_arg)->size;
- 
- #ifdef X86_WIN64
-       if (z > FFI_SIZEOF_ARG
-@@ -202,6 +204,7 @@
-      on top of stack, so that those can be moved to registers by call-handler.  */
-   if (stack_args_count > 0)
-     {
-+      int i;
-       if (dir < 0 && stack_args_count > 1)
-         {
-           /* Reverse order if iterating arguments backwards */
-@@ -210,7 +213,6 @@
-           *(ffi_arg*) p_stack_data[stack_args_count - 1] = tmp;
-         }
-       
--      int i;
-       for (i = 0; i < stack_args_count; i++)
-         {
-           if (p_stack_data[i] != argp2)
-@@ -569,11 +571,12 @@
-        i < cif->nargs && passed_regs < max_stack_count;
-        i++, p_arg++)
-     {
-+      size_t sz;
-       if ((*p_arg)->type == FFI_TYPE_FLOAT
-          || (*p_arg)->type == FFI_TYPE_STRUCT)
-         continue;
- 
--      size_t sz = (*p_arg)->size;
-+      sz = (*p_arg)->size;
-       if(sz == 0 || sz > FFI_SIZEOF_ARG)
-         continue;
- 
-@@ -599,11 +602,13 @@
-        i != 0;
-        i--, p_arg += dir, p_argv += dir)
-     {
-+      size_t z;
-+
-       /* Align if necessary */
-       if ((sizeof(void*) - 1) & (size_t) argp)
-         argp = (char *) ALIGN(argp, sizeof(void*));
- 
--      size_t z = (*p_arg)->size;
-+      z = (*p_arg)->size;
- 
- #ifdef X86_WIN64
-       if (z > FFI_SIZEOF_ARG
-@@ -642,7 +647,7 @@
- #endif
-     }
- 
--  return (size_t)argp - (size_t)stack;
-+  return (int)((size_t)argp - (size_t)stack);
- }
- 
- #define FFI_INIT_TRAMPOLINE_WIN64(TRAMP,FUN,CTX,MASK) \
-@@ -855,11 +860,12 @@
-   
-   for (i = 0; i < cif->nargs && passed_regs <= max_regs; i++)
-     {
-+      size_t sz;
-       if (cif->arg_types[i]->type == FFI_TYPE_FLOAT
-          || cif->arg_types[i]->type == FFI_TYPE_STRUCT)
-         continue;
- 
--      size_t sz = cif->arg_types[i]->size;
-+      sz = cif->arg_types[i]->size;
-       if (sz == 0 || sz > FFI_SIZEOF_ARG)
-         continue;
- 
-diff -ru libffi-3.2.1/src/x86/ffitarget.h libffi-3.2.1/src/x86/ffitarget.h
---- libffi-3.2.1/src/x86/ffitarget.h	2014-11-08 21:47:24.000000000 +0900
-+++ libffi-3.2.1/src/x86/ffitarget.h	2014-12-22 15:45:54.000000000 +0900
-@@ -50,7 +50,9 @@
- #endif
- 
- #define FFI_TARGET_SPECIFIC_STACK_SPACE_ALLOCATION
-+#ifndef _MSC_VER
- #define FFI_TARGET_HAS_COMPLEX_TYPE
-+#endif
- 
- /* ---- Generic type definitions ----------------------------------------- */
- 
-diff -ru libffi-3.2.1/src/x86/win64.S libffi-3.2.1/src/x86/win64.S
---- libffi-3.2.1/src/x86/win64.S	2014-11-08 21:47:24.000000000 +0900
-+++ libffi-3.2.1/src/x86/win64.S	2014-12-22 16:14:40.000000000 +0900
-@@ -127,7 +127,7 @@
- 
- 	mov	rcx, QWORD PTR RVALUE[rbp]
- 	mov	DWORD PTR [rcx], eax
--	jmp	ret_void$
-+	jmp	SHORT ret_void$
- 
- ret_struct2b$:
-  	cmp	DWORD PTR CIF_FLAGS[rbp], FFI_TYPE_SMALL_STRUCT_2B
-@@ -135,7 +135,7 @@
- 
- 	mov	rcx, QWORD PTR RVALUE[rbp]
- 	mov	WORD PTR [rcx], ax
--	jmp	ret_void$
-+	jmp	SHORT ret_void$
- 
- ret_struct1b$:
-  	cmp	DWORD PTR CIF_FLAGS[rbp], FFI_TYPE_SMALL_STRUCT_1B
-@@ -143,7 +143,7 @@
- 
- 	mov	rcx, QWORD PTR RVALUE[rbp]
- 	mov	BYTE PTR [rcx], al
--	jmp	ret_void$
-+	jmp	SHORT ret_void$
- 
- ret_uint8$:
-  	cmp	DWORD PTR CIF_FLAGS[rbp], FFI_TYPE_UINT8
-@@ -152,7 +152,7 @@
- 	mov	rcx, QWORD PTR RVALUE[rbp]
- 	movzx   rax, al
- 	mov	QWORD PTR [rcx], rax
--	jmp	ret_void$
-+	jmp	SHORT ret_void$
- 
- ret_sint8$:
-  	cmp	DWORD PTR CIF_FLAGS[rbp], FFI_TYPE_SINT8
-@@ -161,7 +161,7 @@
- 	mov	rcx, QWORD PTR RVALUE[rbp]
- 	movsx   rax, al
- 	mov	QWORD PTR [rcx], rax
--	jmp	ret_void$
-+	jmp	SHORT ret_void$
- 
- ret_uint16$:
-  	cmp	DWORD PTR CIF_FLAGS[rbp], FFI_TYPE_UINT16
-@@ -188,7 +188,13 @@
- 	mov	rcx, QWORD PTR RVALUE[rbp]
- 	mov     eax, eax
- 	mov	QWORD PTR [rcx], rax
--	jmp	SHORT ret_void$
-+
-+ret_void$:
-+	xor	rax, rax
-+
-+	lea	rsp, QWORD PTR [rbp+16]
-+	pop	rbp
-+	ret	0
- 
- ret_sint32$:
-  	cmp	DWORD PTR CIF_FLAGS[rbp], FFI_TYPE_SINT32
-@@ -247,13 +253,6 @@
- 	cdqe
- 	mov	QWORD PTR [rcx], rax
-  	jmp	SHORT ret_void$
--
--ret_void$:
--	xor	rax, rax
--
--	lea	rsp, QWORD PTR [rbp+16]
--	pop	rbp
--	ret	0
- ffi_call_win64 ENDP
- _TEXT	ENDS
- END
-diff -ru libffi-3.2.1/include/ffi.h.in libffi-3.2.1/include/ffi.h.in
---- libffi-3.2.1/include/ffi.h.in	2014-11-08 21:47:24.000000000 +0900
-+++ libffi-3.2.1/include/ffi.h.in	2015-01-11 12:35:30.000000000 +0900
-@@ -103,6 +103,11 @@
- #   undef  FFI_64_BIT_MAX
- #   define FFI_64_BIT_MAX 9223372036854775807LL
- #  endif
-+#  ifdef _MSC_VER
-+#   define FFI_LONG_LONG_MAX _I64_MAX
-+#   undef  FFI_64_BIT_MAX
-+#   define FFI_64_BIT_MAX 9223372036854775807I64
-+#  endif
- # endif
- #endif
- 
diff --git a/ext/fiddle/win32/libffi-config.rb b/ext/fiddle/win32/libffi-config.rb
deleted file mode 100755
index 8e8069a943..0000000000
--- a/ext/fiddle/win32/libffi-config.rb
+++ /dev/null
@@ -1,48 +0,0 @@
-#!/usr/bin/ruby
-# frozen_string_literal: true
-require 'fileutils'
-
-basedir = File.dirname(__FILE__)
-conf = {}
-enable = {}
-until ARGV.empty?
-  arg = ARGV.shift
-  case arg
-  when '-C'
-    # ignore
-  when /\A--srcdir=(.*)/
-    conf['SRCDIR'] = srcdir = $1
-  when /\A(CC|CFLAGS|CXX|CXXFLAGS|LD|LDFLAGS)=(.*)/
-    conf[$1] = $2
-  when /\A--host=(.*)/
-    host = $1
-  when /\A--enable-([^=]+)(?:=(.*))?/
-    enable[$1] = $2 || true
-  when /\A--disable-([^=]+)/
-    enable[$1] = false
-  end
-end
-
-File.foreach("#{srcdir}/configure.ac") do |line|
-  if /^AC_INIT\((.*)\)/ =~ line
-    version = $1.split(/,\s*/)[1]
-    version.gsub!(/\A\[|\]\z/, '')
-    conf['VERSION'] = version
-    break
-  end
-end
-
-builddir = srcdir == "." ? (enable['builddir'] || ".") : "."
-conf['TARGET'] = /^x64/ =~ host ? "X86_WIN64" : "X86_WIN32"
-
-FileUtils.mkdir_p([builddir, "#{builddir}/include", "#{builddir}/src/x86"])
-FileUtils.cp("#{basedir}/fficonfig.h", ".", preserve: true)
-
-hdr = File.binread("#{srcdir}/include/ffi.h.in")
-hdr.gsub!(/@(\w+)@/) {conf[$1] || $&}
-hdr.gsub!(/^(#if\s+)@\w+@/, '\10')
-File.binwrite("#{builddir}/include/ffi.h", hdr)
-
-mk = File.binread("#{basedir}/libffi.mk.tmpl")
-mk.gsub!(/@(\w+)@/) {conf[$1] || $&}
-File.binwrite("Makefile", mk)
diff --git a/ext/fiddle/win32/libffi.mk.tmpl b/ext/fiddle/win32/libffi.mk.tmpl
deleted file mode 100644
index 2a16e8efec..0000000000
--- a/ext/fiddle/win32/libffi.mk.tmpl
+++ /dev/null
@@ -1,96 +0,0 @@
-# -*- makefile -*-
-# ====================================================================
-#
-# libffi Windows Makefile
-#
-#
-# ====================================================================
-#
-NAME	= ffi
-TARGET	= @TARGET@
-CC	= cl
-!if "$(TARGET)" == "X86_WIN64"
-AS	= ml64
-!else
-AS	= ml
-!endif
-AR	= link
-DLEXT	= dll
-OBJEXT	= obj
-LIBEXT	= lib
-TOPDIR	= @SRCDIR@
-CPP	= $(CC) -EP
-CFLAGS	= @CFLAGS@
-ARFLAGS	= -lib
-ASFLAGS	= -coff -W3 -Cx
-INCLUDES= -I. -I./include -I./src/x86 \
-	  -I$(TOPDIR)/include -I$(TOPDIR)/include/src/x86
-
-SRCDIR	= $(TOPDIR)/src
-WORKDIR	= ./.libs
-BUILDDIR= ./src
-LIBNAME	= lib$(NAME)
-STATICLIB= $(WORKDIR)/$(LIBNAME)_convenience.$(LIBEXT)
-
-HEADERS = \
-	./fficonfig.h
-FFI_HEADERS = \
-	./include/ffi.h \
-	./include/ffitarget.h
-
-!if "$(TARGET)" == "X86_WIN32"
-OSSRC	= win32
-!else if "$(TARGET)" == "X86_WIN64"
-OSSRC	= win64
-!else
-! error unknown target: $(TARGET)
-!endif
-
-OBJECTS = \
-	$(BUILDDIR)/closures.$(OBJEXT) \
-	$(BUILDDIR)/debug.$(OBJEXT) \
-	$(BUILDDIR)/java_raw_api.$(OBJEXT) \
-	$(BUILDDIR)/prep_cif.$(OBJEXT) \
-	$(BUILDDIR)/raw_api.$(OBJEXT) \
-	$(BUILDDIR)/types.$(OBJEXT) \
-	$(BUILDDIR)/x86/ffi.$(OBJEXT) \
-	$(BUILDDIR)/x86/$(OSSRC).$(OBJEXT)
-ASMSRCS = \
-	$(BUILDDIR)/x86/$(OSSRC).asm
-
-.SUFFIXES : .S .asm
-
-all: $(WORKDIR) $(STATICLIB)
-
-{$(SRCDIR)}.c{$(BUILDDIR)}.$(OBJEXT):
-	$(CC) -c $(CFLAGS) $(INCLUDES) -Fo$(@:\=/) -Fd$(WORKDIR)/$(NAME)-src $(<:\=/)
-
-{$(SRCDIR)/x86}.c{$(BUILDDIR)/x86}.$(OBJEXT):
-	$(CC) -c $(CFLAGS) $(INCLUDES) -Fo$(@:\=/) -Fd$(WORKDIR)/$(NAME)-src $(<:\=/)
-
-{$(SRCDIR)/x86}.S{$(BUILDDIR)/x86}.asm:
-	$(CPP) $(CFLAGS) $(INCLUDES) $(<:\=/) >$(@:\=/)
-
-{$(BUILDDIR)/x86}.asm{$(BUILDDIR)/x86}.$(OBJEXT):
-	cd $(@D) && $(AS) -c $(ASFLAGS) -Fo $(@F) $(<F)
-
-$(BUILDDIR)/x86/$(OSSRC).asm: $(SRCDIR)/x86/$(OSSRC).S
-
-$(OBJECTS): $(FFI_HEADERS) $(HEADERS)
-
-$(WORKDIR):
-	-@if not exist "$(WORKDIR:/=\)\$(NULL)" mkdir $(WORKDIR:/=\)
-
-$(STATICLIB): $(WORKDIR) $(OBJECTS)
-	$(AR) $(ARFLAGS) -out:$(STATICLIB) @<<
-	$(OBJECTS)
-<<
-
-clean:
-	-@del /Q $(OBJECTS:/=\) 2>NUL
-	-@del /Q $(ASMSRCS:/=\) 2>NUL
-	-@del /Q /S $(WORKDIR:/=\) 2>NUL
-
-distclean: clean
-	-@del /Q $(HEADERS:/=\) $(FFI_HEADERS:/=\) 2>NUL
-	-@del /Q Makefile 2>NUL