* compile always with -CX -XX for Z80

Makefile

@@ -1752,6 +1752,9 @@ ifneq ($(filter $(CPU_TARGET),x86_64 mips mipsel mips64 mips64el riscv64 powerpc
 override FPCOPT+=-Cg
 endif
 endif
+ifneq ($(filter $(CPU_TARGET),z80),)
+override FPCOPT+=-CX -XX
+endif
 ifdef LINKSHARED
 endif
 ifdef GCCLIBDIR

rtl/Makefile

@@ -1581,6 +1581,9 @@ ifneq ($(filter $(CPU_TARGET),x86_64 mips mipsel mips64 mips64el riscv64 powerpc
 override FPCOPT+=-Cg
 endif
 endif
+ifneq ($(filter $(CPU_TARGET),z80),)
+override FPCOPT+=-CX -XX
+endif
 ifdef LINKSHARED
 endif
 ifdef GCCLIBDIR

rtl/zxspectrum/Makefile

@@ -2246,6 +2246,9 @@ ifneq ($(filter $(CPU_TARGET),x86_64 mips mipsel mips64 mips64el riscv64 powerpc
 override FPCOPT+=-Cg
 endif
 endif
+ifneq ($(filter $(CPU_TARGET),z80),)
+override FPCOPT+=-CX -XX
+endif
 ifdef LINKSHARED
 endif
 ifdef GCCLIBDIR

utils/fpcm/fpcmake.ini

@@ -1594,6 +1594,11 @@ override FPCOPT+=-Cg
 endif
 endif
 
+# building without smartlinking on z80 makes no sense
+ifneq ($(filter $(CPU_TARGET),z80),)
+override FPCOPT+=-CX -XX
+endif
+
 ifdef LINKSHARED
 #!!! deactived for testing override FPCOPT+=-XD
 endif