diff --git a/dlls/d3dcompiler_33/Makefile.in b/dlls/d3dcompiler_33/Makefile.in
index 1e28779b017..926f38d8745 100644
--- a/dlls/d3dcompiler_33/Makefile.in
+++ b/dlls/d3dcompiler_33/Makefile.in
@@ -3,6 +3,8 @@ IMPORTS   = dxguid uuid
 EXTRADEFS = -DD3D_COMPILER_VERSION=33
 PARENTSRC = ../d3dcompiler_43
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	asmparser.c \
 	blob.c \
diff --git a/dlls/d3dcompiler_34/Makefile.in b/dlls/d3dcompiler_34/Makefile.in
index ba104d43a31..cf8dc1112ea 100644
--- a/dlls/d3dcompiler_34/Makefile.in
+++ b/dlls/d3dcompiler_34/Makefile.in
@@ -3,6 +3,8 @@ IMPORTS   = dxguid uuid
 EXTRADEFS = -DD3D_COMPILER_VERSION=34
 PARENTSRC = ../d3dcompiler_43
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	asmparser.c \
 	blob.c \
diff --git a/dlls/d3dcompiler_35/Makefile.in b/dlls/d3dcompiler_35/Makefile.in
index 6bba8a23bc2..07bae8f801d 100644
--- a/dlls/d3dcompiler_35/Makefile.in
+++ b/dlls/d3dcompiler_35/Makefile.in
@@ -3,6 +3,8 @@ IMPORTS   = dxguid uuid
 EXTRADEFS = -DD3D_COMPILER_VERSION=35
 PARENTSRC = ../d3dcompiler_43
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	asmparser.c \
 	blob.c \
diff --git a/dlls/d3dcompiler_36/Makefile.in b/dlls/d3dcompiler_36/Makefile.in
index 5fd11b2d8af..a654b7a7cf0 100644
--- a/dlls/d3dcompiler_36/Makefile.in
+++ b/dlls/d3dcompiler_36/Makefile.in
@@ -3,6 +3,8 @@ IMPORTS   = dxguid uuid
 EXTRADEFS = -DD3D_COMPILER_VERSION=36
 PARENTSRC = ../d3dcompiler_43
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	asmparser.c \
 	blob.c \
diff --git a/dlls/d3dcompiler_37/Makefile.in b/dlls/d3dcompiler_37/Makefile.in
index 3b92a7ace7d..8dfb36fdf89 100644
--- a/dlls/d3dcompiler_37/Makefile.in
+++ b/dlls/d3dcompiler_37/Makefile.in
@@ -3,6 +3,8 @@ IMPORTS   = dxguid uuid
 EXTRADEFS = -DD3D_COMPILER_VERSION=37
 PARENTSRC = ../d3dcompiler_43
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	asmparser.c \
 	blob.c \
diff --git a/dlls/d3dcompiler_38/Makefile.in b/dlls/d3dcompiler_38/Makefile.in
index ab49c2860b4..6042b0d4706 100644
--- a/dlls/d3dcompiler_38/Makefile.in
+++ b/dlls/d3dcompiler_38/Makefile.in
@@ -3,6 +3,8 @@ IMPORTS   = dxguid uuid
 EXTRADEFS = -DD3D_COMPILER_VERSION=38
 PARENTSRC = ../d3dcompiler_43
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	asmparser.c \
 	blob.c \
diff --git a/dlls/d3dcompiler_39/Makefile.in b/dlls/d3dcompiler_39/Makefile.in
index 96270268713..9690d08793c 100644
--- a/dlls/d3dcompiler_39/Makefile.in
+++ b/dlls/d3dcompiler_39/Makefile.in
@@ -3,6 +3,8 @@ IMPORTS   = dxguid uuid
 EXTRADEFS = -DD3D_COMPILER_VERSION=39
 PARENTSRC = ../d3dcompiler_43
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	asmparser.c \
 	blob.c \
diff --git a/dlls/d3dcompiler_40/Makefile.in b/dlls/d3dcompiler_40/Makefile.in
index eb5c751339d..46cd563793b 100644
--- a/dlls/d3dcompiler_40/Makefile.in
+++ b/dlls/d3dcompiler_40/Makefile.in
@@ -3,6 +3,8 @@ IMPORTS   = dxguid uuid
 EXTRADEFS = -DD3D_COMPILER_VERSION=40
 PARENTSRC = ../d3dcompiler_43
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	asmparser.c \
 	blob.c \
diff --git a/dlls/d3dcompiler_41/Makefile.in b/dlls/d3dcompiler_41/Makefile.in
index 557f7602db5..f19e1392113 100644
--- a/dlls/d3dcompiler_41/Makefile.in
+++ b/dlls/d3dcompiler_41/Makefile.in
@@ -3,6 +3,8 @@ IMPORTS   = dxguid uuid
 EXTRADEFS = -DD3D_COMPILER_VERSION=41
 PARENTSRC = ../d3dcompiler_43
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	asmparser.c \
 	blob.c \
diff --git a/dlls/d3dcompiler_42/Makefile.in b/dlls/d3dcompiler_42/Makefile.in
index 199780460cb..25a02dcbcea 100644
--- a/dlls/d3dcompiler_42/Makefile.in
+++ b/dlls/d3dcompiler_42/Makefile.in
@@ -3,6 +3,8 @@ IMPORTS   = dxguid uuid
 EXTRADEFS = -DD3D_COMPILER_VERSION=42
 PARENTSRC = ../d3dcompiler_43
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	asmparser.c \
 	blob.c \
diff --git a/dlls/d3dcompiler_43/Makefile.in b/dlls/d3dcompiler_43/Makefile.in
index 3fd11cf3807..d273e278c3b 100644
--- a/dlls/d3dcompiler_43/Makefile.in
+++ b/dlls/d3dcompiler_43/Makefile.in
@@ -2,6 +2,8 @@ MODULE    = d3dcompiler_43.dll
 IMPORTS   = dxguid uuid
 EXTRADEFS = -DD3D_COMPILER_VERSION=43
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	asmparser.c \
 	blob.c \
diff --git a/dlls/d3dcompiler_43/asmparser.c b/dlls/d3dcompiler_43/asmparser.c
index 2d167dece57..16e86d94dab 100644
--- a/dlls/d3dcompiler_43/asmparser.c
+++ b/dlls/d3dcompiler_43/asmparser.c
@@ -20,8 +20,6 @@
  *
  */
 
-#include "config.h"
-#include "wine/port.h"
 #include "wine/debug.h"
 
 #include "d3dcompiler_private.h"
diff --git a/dlls/d3dcompiler_43/asmshader.l b/dlls/d3dcompiler_43/asmshader.l
index 35a404817f5..63ecddd1899 100644
--- a/dlls/d3dcompiler_43/asmshader.l
+++ b/dlls/d3dcompiler_43/asmshader.l
@@ -20,8 +20,6 @@
  */
 
 %{
-#include "config.h"
-#include "wine/port.h"
 #include "wine/debug.h"
 
 #include "d3dcompiler_private.h"
diff --git a/dlls/d3dcompiler_43/asmshader.y b/dlls/d3dcompiler_43/asmshader.y
index 5948d57d5ed..f5dbb6c8bfc 100644
--- a/dlls/d3dcompiler_43/asmshader.y
+++ b/dlls/d3dcompiler_43/asmshader.y
@@ -20,8 +20,6 @@
  */
 
 %{
-#include "config.h"
-#include "wine/port.h"
 #include "wine/debug.h"
 
 #include "d3dcompiler_private.h"
@@ -30,13 +28,13 @@ WINE_DEFAULT_DEBUG_CHANNEL(asmshader);
 
 struct asm_parser asm_ctx;
 
-void asmparser_message(struct asm_parser *ctx, const char *fmt, ...)
+void __cdecl asmparser_message(struct asm_parser *ctx, const char *fmt, ...)
 {
-    va_list args;
+    __ms_va_list args;
 
-    va_start(args, fmt);
+    __ms_va_start(args, fmt);
     compilation_message(&ctx->messages, fmt, args);
-    va_end(args);
+    __ms_va_end(args);
 }
 
 static void asmshader_error(char const *s) {
diff --git a/dlls/d3dcompiler_43/blob.c b/dlls/d3dcompiler_43/blob.c
index 6c925af8a44..5cc49fe5699 100644
--- a/dlls/d3dcompiler_43/blob.c
+++ b/dlls/d3dcompiler_43/blob.c
@@ -19,9 +19,6 @@
  *
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include "d3dcompiler_private.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(d3dcompiler);
diff --git a/dlls/d3dcompiler_43/bytecodewriter.c b/dlls/d3dcompiler_43/bytecodewriter.c
index a3e6f63fd92..14162ab212b 100644
--- a/dlls/d3dcompiler_43/bytecodewriter.c
+++ b/dlls/d3dcompiler_43/bytecodewriter.c
@@ -20,8 +20,6 @@
  *
  */
 
-#include "config.h"
-#include "wine/port.h"
 #include "wine/debug.h"
 
 #include "d3d9types.h"
diff --git a/dlls/d3dcompiler_43/compiler.c b/dlls/d3dcompiler_43/compiler.c
index a3c91641f5f..1b2107cc277 100644
--- a/dlls/d3dcompiler_43/compiler.c
+++ b/dlls/d3dcompiler_43/compiler.c
@@ -18,12 +18,9 @@
  */
 
 #define COBJMACROS
-#include "config.h"
-#include "wine/port.h"
 #include <stdarg.h>
 #include <time.h>
 #include "wine/debug.h"
-#include "wine/unicode.h"
 
 #include "d3dcompiler_private.h"
 #include "wpp_private.h"
@@ -86,7 +83,7 @@ static CRITICAL_SECTION_DEBUG wpp_mutex_debug =
 static CRITICAL_SECTION wpp_mutex = { &wpp_mutex_debug, -1, 0, 0, 0, 0 };
 
 /* Preprocessor error reporting functions */
-static void wpp_write_message(const char *fmt, va_list args)
+static void wpp_write_message(const char *fmt, __ms_va_list args)
 {
     char* newbuffer;
     int rc, newsize;
@@ -126,39 +123,39 @@ static void wpp_write_message(const char *fmt, va_list args)
     }
 }
 
-static void PRINTF_ATTR(1,2) wpp_write_message_var(const char *fmt, ...)
+static void __cdecl PRINTF_ATTR(1,2) wpp_write_message_var(const char *fmt, ...)
 {
-    va_list args;
+    __ms_va_list args;
 
-    va_start(args, fmt);
+    __ms_va_start(args, fmt);
     wpp_write_message(fmt, args);
-    va_end(args);
+    __ms_va_end(args);
 }
 
-int ppy_error(const char *msg, ...)
+int __cdecl ppy_error(const char *msg, ...)
 {
-    va_list ap;
-    va_start(ap, msg);
+    __ms_va_list ap;
+    __ms_va_start(ap, msg);
     wpp_write_message_var("%s:%d:%d: %s: ",
                           pp_status.input ? pp_status.input : "'main file'",
                           pp_status.line_number, pp_status.char_number, "Error");
     wpp_write_message(msg, ap);
     wpp_write_message_var("\n");
-    va_end(ap);
+    __ms_va_end(ap);
     pp_status.state = 1;
     return 1;
 }
 
-int ppy_warning(const char *msg, ...)
+int __cdecl ppy_warning(const char *msg, ...)
 {
-    va_list ap;
-    va_start(ap, msg);
+    __ms_va_list ap;
+    __ms_va_start(ap, msg);
     wpp_write_message_var("%s:%d:%d: %s: ",
                           pp_status.input ? pp_status.input : "'main file'",
                           pp_status.line_number, pp_status.char_number, "Warning");
     wpp_write_message(msg, ap);
     wpp_write_message_var("\n");
-    va_end(ap);
+    __ms_va_end(ap);
     return 0;
 }
 
diff --git a/dlls/d3dcompiler_43/d3dcompiler_private.h b/dlls/d3dcompiler_43/d3dcompiler_private.h
index dabe0dacc30..d2162c83553 100644
--- a/dlls/d3dcompiler_43/d3dcompiler_private.h
+++ b/dlls/d3dcompiler_43/d3dcompiler_private.h
@@ -285,8 +285,8 @@ struct bwriter_shader *parse_asm_shader(char **messages) DECLSPEC_HIDDEN;
 #define PRINTF_ATTR(fmt,args)
 #endif
 
-void compilation_message(struct compilation_messages *msg, const char *fmt, va_list args) DECLSPEC_HIDDEN;
-void asmparser_message(struct asm_parser *ctx, const char *fmt, ...) PRINTF_ATTR(2,3) DECLSPEC_HIDDEN;
+void compilation_message(struct compilation_messages *msg, const char *fmt, __ms_va_list args) DECLSPEC_HIDDEN;
+void __cdecl asmparser_message(struct asm_parser *ctx, const char *fmt, ...) PRINTF_ATTR(2,3) DECLSPEC_HIDDEN;
 static inline void set_parse_status(enum parse_status *current, enum parse_status update)
 {
     if (update == PARSE_ERR)
@@ -1055,8 +1055,8 @@ enum hlsl_error_level
     HLSL_LEVEL_NOTE,
 };
 
-void hlsl_message(const char *fmt, ...) PRINTF_ATTR(1,2) DECLSPEC_HIDDEN;
-void hlsl_report_message(const char *filename, DWORD line, DWORD column,
+void __cdecl hlsl_message(const char *fmt, ...) PRINTF_ATTR(1,2) DECLSPEC_HIDDEN;
+void __cdecl hlsl_report_message(const char *filename, DWORD line, DWORD column,
         enum hlsl_error_level level, const char *fmt, ...) PRINTF_ATTR(5,6) DECLSPEC_HIDDEN;
 
 static inline struct hlsl_ir_var *var_from_node(const struct hlsl_ir_node *node)
diff --git a/dlls/d3dcompiler_43/hlsl.l b/dlls/d3dcompiler_43/hlsl.l
index f40e3c9a049..2994c7dea62 100644
--- a/dlls/d3dcompiler_43/hlsl.l
+++ b/dlls/d3dcompiler_43/hlsl.l
@@ -20,8 +20,6 @@
  */
 
 %{
-#include "config.h"
-#include "wine/port.h"
 #include "wine/debug.h"
 
 #define YY_NO_UNISTD_H
diff --git a/dlls/d3dcompiler_43/hlsl.y b/dlls/d3dcompiler_43/hlsl.y
index 358ed96ef48..139ab4cd6a7 100644
--- a/dlls/d3dcompiler_43/hlsl.y
+++ b/dlls/d3dcompiler_43/hlsl.y
@@ -19,7 +19,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 %{
-#include "config.h"
 #include "wine/debug.h"
 
 #include <stdio.h>
@@ -35,13 +34,13 @@ struct hlsl_parse_ctx hlsl_ctx;
 struct YYLTYPE;
 static void set_location(struct source_location *loc, const struct YYLTYPE *l);
 
-void hlsl_message(const char *fmt, ...)
+void __cdecl hlsl_message(const char *fmt, ...)
 {
-    va_list args;
+    __ms_va_list args;
 
-    va_start(args, fmt);
+    __ms_va_start(args, fmt);
     compilation_message(&hlsl_ctx.messages, fmt, args);
-    va_end(args);
+    __ms_va_end(args);
 }
 
 static const char *hlsl_get_error_level_name(enum hlsl_error_level level)
@@ -55,18 +54,18 @@ static const char *hlsl_get_error_level_name(enum hlsl_error_level level)
     return names[level];
 }
 
-void hlsl_report_message(const char *filename, DWORD line, DWORD column,
+void __cdecl hlsl_report_message(const char *filename, DWORD line, DWORD column,
         enum hlsl_error_level level, const char *fmt, ...)
 {
-    va_list args;
+    __ms_va_list args;
     char *string = NULL;
     int rc, size = 0;
 
     while (1)
     {
-        va_start(args, fmt);
+        __ms_va_start(args, fmt);
         rc = vsnprintf(string, size, fmt, args);
-        va_end(args);
+        __ms_va_end(args);
 
         if (rc >= 0 && rc < size)
             break;
diff --git a/dlls/d3dcompiler_43/main.c b/dlls/d3dcompiler_43/main.c
index 929cec0a7a4..3404655ac8e 100644
--- a/dlls/d3dcompiler_43/main.c
+++ b/dlls/d3dcompiler_43/main.c
@@ -19,8 +19,6 @@
  *
  */
 
-#include "config.h"
-
 #include <stdarg.h>
 
 #include "windef.h"
diff --git a/dlls/d3dcompiler_43/ppl.l b/dlls/d3dcompiler_43/ppl.l
index 16c36900c52..2fd8c65b5c2 100644
--- a/dlls/d3dcompiler_43/ppl.l
+++ b/dlls/d3dcompiler_43/ppl.l
@@ -155,17 +155,7 @@ ul	[uUlL]|[uUlL][lL]|[lL][uU]|[lL][lL][uU]|[uU][lL][lL]|[lL][uU][lL]
 #include <errno.h>
 #include <limits.h>
 
-#ifndef LLONG_MAX
-# define LLONG_MAX  ((__int64)0x7fffffff << 32 | 0xffffffff)
-# define LLONG_MIN  (-LLONG_MAX - 1)
-#endif
-#ifndef ULLONG_MAX
-# define ULLONG_MAX ((__int64)0xffffffff << 32 | 0xffffffff)
-#endif
-
-#ifndef HAVE_UNISTD_H
 #define YY_NO_UNISTD_H
-#endif
 
 #include "wpp_private.h"
 #include "ppy.tab.h"
@@ -295,9 +285,9 @@ includelogicentry_t *pp_includelogiclist = NULL;
 
 #define BUFFERINITIALCAPACITY 256
 
-void pp_writestring(const char *format, ...)
+void __cdecl pp_writestring(const char *format, ...)
 {
-	va_list valist;
+	__ms_va_list valist;
 	int len;
 	static char *buffer;
 	static int buffercapacity;
@@ -311,10 +301,10 @@ void pp_writestring(const char *format, ...)
 		buffercapacity = BUFFERINITIALCAPACITY;
 	}
 
-	va_start(valist, format);
+	__ms_va_start(valist, format);
 	len = vsnprintf(buffer, buffercapacity,
 			format, valist);
-	va_end(valist);
+	__ms_va_end(valist);
         /* If the string is longer than buffersize, vsnprintf returns
          * the string length with glibc >= 2.1, -1 with glibc < 2.1 */
 	while(len > buffercapacity || len < 0)
@@ -326,15 +316,12 @@ void pp_writestring(const char *format, ...)
 
 		new_buffer = pp_xrealloc(buffer, buffercapacity);
 		if(new_buffer == NULL)
-		{
-			va_end(valist);
 			return;
-		}
 		buffer = new_buffer;
-		va_start(valist, format);
+		__ms_va_start(valist, format);
 		len = vsnprintf(buffer, buffercapacity,
 				format, valist);
-		va_end(valist);
+		__ms_va_end(valist);
 	}
 
 	wpp_write(buffer, len);
diff --git a/dlls/d3dcompiler_43/ppy.y b/dlls/d3dcompiler_43/ppy.y
index 95be50b9633..d520883faab 100644
--- a/dlls/d3dcompiler_43/ppy.y
+++ b/dlls/d3dcompiler_43/ppy.y
@@ -20,9 +20,6 @@
  */
 
 %{
-#include "config.h"
-#include "wine/port.h"
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>
diff --git a/dlls/d3dcompiler_43/preproc.c b/dlls/d3dcompiler_43/preproc.c
index 95f93cd0752..43a7d24477d 100644
--- a/dlls/d3dcompiler_43/preproc.c
+++ b/dlls/d3dcompiler_43/preproc.c
@@ -16,9 +16,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include <assert.h>
 #include <ctype.h>
 #include <fcntl.h>
@@ -26,9 +23,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <stdarg.h>
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
 
 #include "wpp_private.h"
 
@@ -441,13 +435,13 @@ int pp_get_if_depth(void)
 	return if_stack_idx;
 }
 
-void pp_internal_error(const char *file, int line, const char *s, ...)
+void __cdecl pp_internal_error(const char *file, int line, const char *s, ...)
 {
-	va_list ap;
-	va_start(ap, s);
+	__ms_va_list ap;
+	__ms_va_start(ap, s);
 	fprintf(stderr, "Internal error (please report) %s %d: ", file, line);
 	vfprintf(stderr, s, ap);
 	fprintf(stderr, "\n");
-	va_end(ap);
+	__ms_va_end(ap);
 	exit(3);
 }
diff --git a/dlls/d3dcompiler_43/reflection.c b/dlls/d3dcompiler_43/reflection.c
index 7c67c929547..e492011c55f 100644
--- a/dlls/d3dcompiler_43/reflection.c
+++ b/dlls/d3dcompiler_43/reflection.c
@@ -18,9 +18,6 @@
  *
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include "initguid.h"
 #include "d3dcompiler_private.h"
 #include "winternl.h"
diff --git a/dlls/d3dcompiler_43/utils.c b/dlls/d3dcompiler_43/utils.c
index 95a1dbd3d51..a521eb65382 100644
--- a/dlls/d3dcompiler_43/utils.c
+++ b/dlls/d3dcompiler_43/utils.c
@@ -21,9 +21,6 @@
  *
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include <stdio.h>
 
 #include "d3dcompiler_private.h"
@@ -719,7 +716,7 @@ HRESULT dxbc_write_blob(struct dxbc *dxbc, ID3DBlob **blob)
     return S_OK;
 }
 
-void compilation_message(struct compilation_messages *msg, const char *fmt, va_list args)
+void compilation_message(struct compilation_messages *msg, const char *fmt, __ms_va_list args)
 {
     char* buffer;
     int rc, size;
diff --git a/dlls/d3dcompiler_43/wpp_private.h b/dlls/d3dcompiler_43/wpp_private.h
index b4892624a4c..77025db1f2e 100644
--- a/dlls/d3dcompiler_43/wpp_private.h
+++ b/dlls/d3dcompiler_43/wpp_private.h
@@ -209,9 +209,9 @@ int pp_get_if_depth(void);
 
 extern const struct wpp_callbacks *wpp_callbacks;
 
-int ppy_error(const char *s, ...) __attribute__((format (printf, 1, 2)));
-int ppy_warning(const char *s, ...) __attribute__((format (printf, 1, 2)));
-void pp_internal_error(const char *file, int line, const char *s, ...) __attribute__((format (printf, 3, 4)));
+int __cdecl ppy_error(const char *s, ...) __attribute__((format (printf, 1, 2)));
+int __cdecl ppy_warning(const char *s, ...) __attribute__((format (printf, 1, 2)));
+void __cdecl pp_internal_error(const char *file, int line, const char *s, ...) __attribute__((format (printf, 3, 4)));
 
 /* current preprocessor state */
 /* everything is in this structure to avoid polluting the global symbol space */
@@ -240,7 +240,7 @@ void pp_do_include(char *fname, int type);
 void pp_push_ignore_state(void);
 void pp_pop_ignore_state(void);
 
-void pp_writestring(const char *format, ...) __attribute__((format (printf, 1, 2)));
+void __cdecl pp_writestring(const char *format, ...) __attribute__((format (printf, 1, 2)));
 
 /*
  * From ppy.y
diff --git a/dlls/d3dcompiler_46/Makefile.in b/dlls/d3dcompiler_46/Makefile.in
index f1bb6ac8dc2..6f32986af1e 100644
--- a/dlls/d3dcompiler_46/Makefile.in
+++ b/dlls/d3dcompiler_46/Makefile.in
@@ -3,6 +3,8 @@ IMPORTS   = dxguid uuid
 EXTRADEFS = -DD3D_COMPILER_VERSION=46
 PARENTSRC = ../d3dcompiler_43
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	asmparser.c \
 	blob.c \
diff --git a/dlls/d3dcompiler_47/Makefile.in b/dlls/d3dcompiler_47/Makefile.in
index 3c9636108ed..df9cde05ca9 100644
--- a/dlls/d3dcompiler_47/Makefile.in
+++ b/dlls/d3dcompiler_47/Makefile.in
@@ -4,6 +4,8 @@ IMPORTS   = dxguid uuid
 EXTRADEFS = -DD3D_COMPILER_VERSION=47
 PARENTSRC = ../d3dcompiler_43
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	asmparser.c \
 	blob.c \