diff --git a/fcl/Makefile b/fcl/Makefile
index 49e2faf442..d94eb24628 100644
--- a/fcl/Makefile
+++ b/fcl/Makefile
@@ -1,5 +1,5 @@
 #
-# Don't edit, this file is generated by FPCMake Version 1.1 [2001/12/11]
+# Don't edit, this file is generated by FPCMake Version 1.1 [2001/12/13]
 #
 default: all
 override PATH:=$(subst \,/,$(PATH))
@@ -213,6 +213,9 @@ endif
 ifeq ($(OS_TARGET),netbsd)
 UNIXINSTALLDIR=1
 endif
+ifeq ($(OS_TARGET),sunos)
+UNIXINSTALLDIR=1
+endif
 else
 ifeq ($(OS_SOURCE),linux)
 UNIXINSTALLDIR=1
@@ -223,6 +226,9 @@ endif
 ifeq ($(OS_SOURCE),netbsd)
 UNIXINSTALLDIR=1
 endif
+ifeq ($(OS_TARGET),sunos)
+UNIXINSTALLDIR=1
+endif
 endif
 ifndef INSTALL_PREFIX
 ifdef UNIXINSTALLDIR