diff --git a/engines/Makefile b/engines/Makefile
index 4bad384bfb36e26eff791de710d79ee95cc9099d..d0881f2977843dc80ee0e0055ded1b909e23e33a 100644
--- a/engines/Makefile
+++ b/engines/Makefile
@@ -120,7 +120,10 @@ install:
 		for l in $(LIBNAMES); do \
 			( echo installing $$l; \
 			  pfx=lib; \
-			  if ! expr "$(PLATFORM)" : "Cygwin" >/dev/null; then \
+			  if expr "$(PLATFORM)" : "Cygwin" >/dev/null; then \
+				sfx=".so"; \
+				cp cyg$$l.dll $(INSTALL_PREFIX)$(INSTALLTOP)/$(LIBDIR)/engines/$$pfx$$l$$sfx.new; \
+			  else \
 				case "$(CFLAGS)" in \
 				*DSO_BEOS*)	sfx=".so";;	\
 				*DSO_DLFCN*)	sfx=`expr "$(SHLIB_EXT)" : '.*\(\.[a-z][a-z]*\)' \| ".so"`;;	\
@@ -129,9 +132,6 @@ install:
 				*)		sfx=".bad";;	\
 				esac; \
 				cp $$pfx$$l$$sfx $(INSTALL_PREFIX)$(INSTALLTOP)/$(LIBDIR)/engines/$$pfx$$l$$sfx.new; \
-			  else \
-				sfx=".so"; \
-				cp cyg$$l.dll $(INSTALL_PREFIX)$(INSTALLTOP)/$(LIBDIR)/engines/$$pfx$$l$$sfx.new; \
 			  fi; \
 			  chmod 555 $(INSTALL_PREFIX)$(INSTALLTOP)/$(LIBDIR)/engines/$$pfx$$l$$sfx.new; \
 			  mv -f $(INSTALL_PREFIX)$(INSTALLTOP)/$(LIBDIR)/engines/$$pfx$$l$$sfx.new $(INSTALL_PREFIX)$(INSTALLTOP)/$(LIBDIR)/engines/$$pfx$$l$$sfx ); \
diff --git a/engines/ccgost/Makefile b/engines/ccgost/Makefile
index 97fac82d6baef27753e0e1eda9671052073b9647..43e06fbeccc819ef8ad0ba9e77ba25ffc58f7390 100644
--- a/engines/ccgost/Makefile
+++ b/engines/ccgost/Makefile
@@ -47,7 +47,10 @@ install:
 		set -e; \
 		echo installing $(LIBNAME); \
 		pfx=lib; \
-		if ! expr "$(PLATFORM)" : "Cygwin" >/dev/null; then \
+		if expr "$(PLATFORM)" : "Cygwin" >/dev/null; then \
+			sfx=".so"; \
+			cp cyg$(LIBNAME).dll $(INSTALL_PREFIX)$(INSTALLTOP)/$(LIBDIR)/engines/$${pfx}$(LIBNAME)$$sfx.new; \
+		else; \
 			case "$(CFLAGS)" in \
 			*DSO_BEOS*) sfx=".so";; \
 			*DSO_DLFCN*) sfx=`expr "$(SHLIB_EXT)" : '.*\(\.[a-z][a-z]*\)' \| ".so"`;; \
@@ -56,9 +59,6 @@ install:
 			*) sfx=".bad";; \
 			esac; \
 			cp $${pfx}$(LIBNAME)$$sfx $(INSTALL_PREFIX)$(INSTALLTOP)/$(LIBDIR)/engines/$${pfx}$(LIBNAME)$$sfx.new; \
-		else \
-			sfx=".so"; \
-			cp cyg$(LIBNAME).dll $(INSTALL_PREFIX)$(INSTALLTOP)/$(LIBDIR)/engines/$${pfx}$(LIBNAME)$$sfx.new; \
 		fi; \
 		chmod 555 $(INSTALL_PREFIX)$(INSTALLTOP)/$(LIBDIR)/engines/$${pfx}$(LIBNAME)$$sfx.new; \
 		mv -f $(INSTALL_PREFIX)$(INSTALLTOP)/$(LIBDIR)/engines/$${pfx}$(LIBNAME)$$sfx.new $(INSTALL_PREFIX)$(INSTALLTOP)/$(LIBDIR)/engines/$${pfx}$(LIBNAME)$$sfx; \