Update Makefile.rules to support .cpp extension of C++ sources

diff --git a/build/_infrastructure/Makefile.rules b/build/_infrastructure/Makefile.rules
index 7efe23ca7c345003b7023249f12dcb31fe126f25..5cc8fef141c5b8d54324b23173fbc34c90c849a2 100644 (file)
--- a/build/_infrastructure/Makefile.rules
+++ b/build/_infrastructure/Makefile.rules
@@ -4,7 +4,7 @@
 #  (C) Copyright 2006, 2007, 2008, 2009, 2010, 2011 by Michal Sojka - Czech Technical University, FEE, DCE
 #
 #  Homepage: http://rtime.felk.cvut.cz/omk/
-#  Version:  0.2-89-g95151fe
+#  Version:  0.2-100-g16a147d
 #
 # The OMK build system is distributed under the GNU General Public
 # License.  See file COPYING for details.
@@ -71,6 +71,23 @@ ifndef MAKERULES_DIR
 MAKERULES_DIR := $(abspath $(dir $(filter %Makefile.rules,$(MAKEFILE_LIST))))
 endif
 
+# The $(SED4OMK) command for BSD based systems requires -E option to allow
+# extended regular expressions
+
+SED4OMK ?= sed
+ifneq ($(shell ( echo A | $(SED4OMK) -n -e 's/A\|B/y/p' )),y)
+  SED4OMK := $(SED4OMK) -E
+  ifneq ($(shell ( echo A | $(SED4OMK) -n -e 's/A\|B/y/p' )),y)
+    SED4OMK := gsed
+  endif
+  ifneq ($(shell ( echo A | $(SED4OMK) -n -e 's/A\|B/y/p' )),y)
+    SED4OMK := gsed -E
+  endif
+  ifneq ($(shell ( echo A | $(SED4OMK) -n -e 's/A\|B/y/p' )),y)
+    $(error No SED program suitable for OMK found)
+  endif
+endif
+
 # OUTPUT_DIR is the place where _compiled, _build and possible other
 # files/directories are created. By default is the same as
 # $(MAKERULES_DIR).
@@ -141,7 +158,7 @@ endif
 CONFIG_FILES ?= $(wildcard $(CONFIG_FILE)-default) $(wildcard $(OUTPUT_DIR)/config.target) $(wildcard $(CONFIG_FILE))
 
 
-export SOURCES_DIR MAKERULES_DIR RELATIVE_DIR INVOCATION_DIR
+export SED4OMK SOURCES_DIR MAKERULES_DIR RELATIVE_DIR INVOCATION_DIR
 export CONFIG_FILE CONFIG_FILES OMK_SERIALIZE_INCLUDED OMK_VERBOSE OMK_SILENT
 # OMK_SERIALIZE_INCLUDED has to be exported to submakes because passes
 # must to be serialized only in the toplevel make.
@@ -153,7 +170,7 @@ endif
 override RELATIVE_DIR := $(RELATIVE_DIR:/%=%)
 override RELATIVE_DIR := $(RELATIVE_DIR:\\%=%)
 #$(warning  RELATIVE_DIR = "$(RELATIVE_DIR)")
-#override BACK2TOP_DIR := $(shell echo $(RELATIVE_DIR)/ | sed -e 's_//_/_g' -e 's_/\./_/_g' -e 's_^\./__g'  -e 's_\([^/][^/]*\)_.._g' -e 's_/$$__')
+#override BACK2TOP_DIR := $(shell echo $(RELATIVE_DIR)/ | $(SED4OMK) -e 's_//_/_g' -e 's_/\./_/_g' -e 's_^\./__g'  -e 's_\([^/][^/]*\)_.._g' -e 's_/$$__')
 #$(warning  BACK2TOP_DIR = "$(BACK2TOP_DIR)")
 
 #$(warning SOURCES_DIR = "$(SOURCES_DIR)")
@@ -212,9 +229,9 @@ print-hints:
        @echo 'Use "make V=1" to see the verbose compile lines.'
 
 check-make-ver:
-       @GOOD_MAKE_VERSION=`echo $(MAKE_VERSION) | sed -n -e 's/^[4-9]\..*\|^3\.9[0-9].*\|^3\.8[1-9].*/y/p'` ; \
+       @GOOD_MAKE_VERSION=`echo $(MAKE_VERSION) | $(SED4OMK) -n -e 's/^[4-9]\..*\|^3\.9[0-9].*\|^3\.8[1-9].*/y/p'` ; \
        if [ x$$GOOD_MAKE_VERSION != xy ] ; then \
-               echo "Your make program version is too old and does not support OMK system." ; \
+               echo "Your make program version ($(MAKE_VERSION)) is too old and does not support OMK system." ; \
                echo "Please update to make program 3.81beta1 or newer." ; exit 1 ; \
        fi
 
@@ -322,7 +339,7 @@ default-config-pass-local:
 #      @echo Default config for $(RELATIVE_DIR)
        @echo "# Config for $(RELATIVE_DIR)" >> "$(CONFIG_FILE)-default"
        @$(foreach x, $(default_CONFIG), echo '$(x)' | \
-               sed -e 's/^[^=]*=x$$/#\0/' >> "$(CONFIG_FILE)-default" ; )
+               $(SED4OMK) -e 's/^[^=]*=x$$/#\0/' >> "$(CONFIG_FILE)-default" ; )
 
 
 omkize:
@@ -551,9 +568,9 @@ endif
 
 ifdef USER_RULE_TEMPLATES
 
-USER_SOURCES2OBJS = .o/.c .o/.cc .o/.cxx .o/.S .o/.o
+USER_SOURCES2OBJS = .o/.c .o/.cc .o/.cxx .o/.cpp .o/.S .o/.o
 
-USER_SOURCES2OBJSLO = .lo/.c .lo/.cc .lo/.cxx .lo/.S .lo/.lo
+USER_SOURCES2OBJSLO = .lo/.c .lo/.cc .lo/.cxx .lo/.cpp .lo/.S .lo/.lo
 
 #%.lo: %.c
 #      $(CC) -o $@ $(LCFLAGS) -c $<
@@ -571,7 +588,7 @@ idl_COMPILE = $(IDL_COMPILER)
 
 # Check GCC version for user build
 ifndef CC_MAJOR_VERSION
-CC_MAJOR_VERSION := $(shell $(CC) -dumpversion | sed -e 's/\([^.]\)\..*/\1/')
+CC_MAJOR_VERSION := $(shell $(CC) -dumpversion | $(SED4OMK) -e 's/\([^.]\)\..*/\1/')
 endif
 # Prepare suitable define for dependency building
 ifeq ($(CC_MAJOR_VERSION),2)
@@ -627,15 +644,15 @@ $(2): $(1)
 # Bellow, the tricks with redirection are for shells without set -o pipefail
 # (see http://www.mail-archive.com/dash@vger.kernel.org/msg00149.html)
        $(Q)exec 3>&1; status=`exec 4>&1 >&3; { $(NM) $$<; echo $$$$? >&4; }\
-               | sed -n 's/^ *0*\(0[0-9A-Fa-f]*\) *A *_cmetric2cond_\([A-Za-z_0-9]*\) */#define \2 0x\1/p' \
+               | $(SED4OMK) -n 's/^ *0*\(0[0-9A-Fa-f]*\) *A *_cmetric2cond_\([A-Za-z_0-9]*\) */#define \2 0x\1/p' \
                | sort >>$$@.tmp` && exit $$$$status
        $(Q)echo >>$$@.tmp '/* Defines from the values defined to symbols in hexadecimal format */'
        $(Q)exec 3>&1; status=`exec 4>&1 >&3; { $(NM) $$<; echo $$$$? >&4; }\
-               | sed -n 's/^ *0*\(0[0-9A-Fa-f]*\) *A *_cmetric2def_\([A-Za-z_0-9]*\) */#define \2 0x\1/p' \
+               | $(SED4OMK) -n 's/^ *0*\(0[0-9A-Fa-f]*\) *A *_cmetric2def_\([A-Za-z_0-9]*\) */#define \2 0x\1/p' \
                | sort >>$$@.tmp` && exit $$$$status
        $(Q)echo >>$$@.tmp '/* Defines from the values defined to symbols in decimal format */'
        $(Q)exec 3>&1; status=`exec 4>&1 >&3; { $(NM) -td $$<; echo $$$$? >&4; }\
-               | sed -n 's/^ *0*\(0\|[1-9][0-9]*\) *A *_cmetric2defdec_\([A-Za-z_0-9]*\) */#define \2 \1/p' \
+               | $(SED4OMK) -n 's/^ *0*\(0\|[1-9][0-9]*\) *A *_cmetric2defdec_\([A-Za-z_0-9]*\) */#define \2 \1/p' \
                | sort >>$$@.tmp` && exit $$$$status
        $(Q)mv $$@.tmp $$@
 endef
@@ -672,10 +689,10 @@ USER_SOURCES += $$($(1)_SOURCES)
 
 $(2)/$(1)$(3): $$($(1)_OBJS)
        @$(QUIET_CMD_ECHO) "  LINK    $$@"
-       $(Q) $$(if $$(filter %.cc,$$($(1)_SOURCES:%.cxx=%.cc)),$$(CXX),$$(CC)) \
+       $(Q) $$(if $$(filter %.cc,$$($(1)_SOURCES))$$(filter %.cxx,$$($(1)_SOURCES))$$(filter %.cpp,$$($(1)_SOURCES)),$$(CXX),$$(CC)) \
          $$($(1)_OBJS) $$($(1)_LIBS:%=-l%) $$(LOADLIBES) $$(LDFLAGS) $$($(1)_LDFLAGS) -Wl,-rpath-link,$(USER_LIB_DIR) -Wl,-Map,$(USER_OBJS_DIR)/$(1).exe.map -o $$@
        @echo "$(2)/$(1)$(3): \\" >$(USER_OBJS_DIR)/$(1).exe.d
-       @sed -n -e 's|^LOAD \(.*\)$$$$|  \1  \&|p' $(USER_OBJS_DIR)/$(1).exe.map|tr '&' '\134'  >>$(USER_OBJS_DIR)/$(1).exe.d
+       @$(SED4OMK) -n -e 's|^LOAD \(.*\)$$$$|  \1  \&|p' $(USER_OBJS_DIR)/$(1).exe.map|tr '&' '\134'  >>$(USER_OBJS_DIR)/$(1).exe.d
        @echo >>$(USER_OBJS_DIR)/$(1).exe.d
 endef
 
@@ -821,7 +838,7 @@ ifeq ($(CONFIG_RTLINUX),y)
 include $(RTL_DIR)/rtl.mk
 
 KERN_CC = $(CC)
-kern_GCCLIB_DIR=$(shell LANG=C LC_ALL=C LC_MESSAGES=C $(CC) -print-search-dirs | sed -n -e 's/^install: \(.*\)$$/\1/p' )
+kern_GCCLIB_DIR=$(shell LANG=C LC_ALL=C LC_MESSAGES=C $(CC) -print-search-dirs | $(SED4OMK) -n -e 's/^install: \(.*\)$$/\1/p' )
 INCLUDES := -I $(KERN_INCLUDE_DIR) $(INCLUDE) $(rtlinux_INCLUDES) $(kernel_INCLUDES)
 #-DEXPORT_NO_SYMBOLS
 c_o_kern_COMPILE = $(KERN_CC) -idirafter $(kern_GCCLIB_DIR)/include $(INCLUDES)  $(CFLAGS) -DOMK_FOR_KERNEL -DEXPORT_SYMTAB -nostdinc
@@ -842,15 +859,15 @@ kernel_INCLUDES += -I $(KERN_INCLUDE_DIR) -I $(LINUX_DIR) -idirafter $(LINUX_SRC
 
 ifdef LINUX_CC
 KERN_CC = $(LINUX_CC)
-kern_GCCLIB_DIR=$(shell LANG=C LC_ALL=C LC_MESSAGES=C $(LINUX_CC) -print-search-dirs | sed -n -e 's/^install: \(.*\)$$/\1/p' )
+kern_GCCLIB_DIR=$(shell LANG=C LC_ALL=C LC_MESSAGES=C $(LINUX_CC) -print-search-dirs | $(SED4OMK) -n -e 's/^install: \(.*\)$$/\1/p' )
 else
 KERN_CC = echo KERN_CC not defined - compilation skipped
 endif
 c_o_kern_COMPILE = $(KERN_CC) $(kernel_INCLUDES) -idirafter $(kern_GCCLIB_DIR)/include $(LINUX_CPPFLAGS) $(LINUX_CFLAGS) $(LINUX_CFLAGS_MODULE) -DOMK_FOR_KERNEL -DEXPORT_SYMTAB -nostdinc
 cc_o_kern_COMPILE = $(KERN_CC) $(kernel_INCLUDES) -idirafter $(kern_GCCLIB_DIR)/include $(LINUX_CPPFLAGS) $(LINUX_CFLAGS) $(LINUX_CFLAGS_MODULE) -DOMK_FOR_KERNEL -DEXPORT_SYMTAB
-S_o_kern_COMPILE = $(KERN_CC) $(kernel_INCLUDES) -idirafter $(kern_GCCLIB_DIR)/include $(LINUX_CPPFLAGS) $(LINUX_AFLAGS) $(LINUX_CFLAGS_MODULE) -DOMK_FOR_KERNEL -DEXPORT_SYMTAB -nostdinc
+S_o_kern_COMPILE = $(KERN_CC) $(kernel_INCLUDES) -idirafter $(kern_GCCLIB_DIR)/include $(LINUX_CPPFLAGS) $(LINUX_AFLAGS) $(LINUX_AFLAGS_MODULE) -DOMK_FOR_KERNEL -DEXPORT_SYMTAB -nostdinc
 KERN_EXE_SUFFIX := $(LINUX_MODULE_EXT)
-KERN_LDFLAGS = $(LINUX_LDFLAGS)
+KERN_LDFLAGS = $(LINUX_LDFLAGS) $(LINUX_LDFLAGS_MODULE)
 ifdef LINUX_ARCH
 KERN_ARCH = $(LINUX_ARCH)
 else
@@ -881,7 +898,7 @@ KERN_LOADLIBES += $(kernel_LOADLIBES:%=-l%)
 
 # Check GCC version for kernel part of build
 ifndef kern_CC_MAJOR_VERSION
-kern_CC_MAJOR_VERSION := $(shell $(KERN_CC) -dumpversion | sed -e 's/\([^.]\)\..*/\1/')
+kern_CC_MAJOR_VERSION := $(shell $(KERN_CC) -dumpversion | $(SED4OMK) -e 's/\([^.]\)\..*/\1/')
 endif
 # Prepare suitable define for dependency building
 ifeq ($(kern_CC_MAJOR_VERSION),2)
@@ -977,6 +994,7 @@ define MODULE_kern_template
 $(1)_OBJS += $$(filter %.o,$$($(1)_SOURCES:%.c=%.o))
 $(1)_OBJS += $$(filter %.o,$$($(1)_SOURCES:%.cc=%.o))
 $(1)_OBJS += $$(filter %.o,$$($(1)_SOURCES:%.cxx=%.o))
+$(1)_OBJS += $$(filter %.o,$$($(1)_SOURCES:%.cpp=%.o))
 $(1)_OBJS := $$(sort $$($(1)_OBJS))
 
 KERN_OBJS  += $$($(1)_OBJS)
@@ -1014,7 +1032,7 @@ $(2)/$(1)$(KERN_LINK_SUFFIX): $$($(1)_OBJS)
        @$(QUIET_CMD_ECHO) "  LD [K]  $$@"
        $(Q) $$(KERN_LD) $$(KERN_LDFLAGS) -r $$($(1)_OBJS) -L$$(kern_GCCLIB_DIR) $$($(1)_LIBS:%=-l%) $$(KERN_LOADLIBES) -Map $(KERN_OBJS_DIR)/$(1).mod.map -o $$@
        @echo "$(2)/$(1)$(KERN_LINK_SUFFIX): \\" >$(KERN_OBJS_DIR)/$(1).mod.d
-       @sed -n -e 's/^LOAD \(.*\)$$$$/  \1  \\/p' $(KERN_OBJS_DIR)/$(1).mod.map  >>$(KERN_OBJS_DIR)/$(1).mod.d
+       @$(SED4OMK) -n -e 's/^LOAD \(.*\)$$$$/  \1  \\/p' $(KERN_OBJS_DIR)/$(1).mod.map  >>$(KERN_OBJS_DIR)/$(1).mod.d
        @echo >>$(KERN_OBJS_DIR)/$(1).mod.d
        @if [ "$(KERN_EXE_SUFFIX)" = ".ko" ] ; then \
          echo $(1) >>$(KERN_MODPOST_DIR)/module-changes ; \
@@ -1029,6 +1047,7 @@ define LIBRARY_kern_template
 $(1)_OBJS += $$(filter %.o,$$($(1)_SOURCES:%.c=%.o))
 $(1)_OBJS += $$(filter %.o,$$($(1)_SOURCES:%.cc=%.o))
 $(1)_OBJS += $$(filter %.o,$$($(1)_SOURCES:%.cxx=%.o))
+$(1)_OBJS += $$(filter %.o,$$($(1)_SOURCES:%.cpp=%.o))
 $(1)_OBJS := $$(sort $$($(1)_OBJS))
 
 KERN_OBJS  += $$($(1)_OBJS)
@@ -1160,6 +1179,8 @@ $(foreach src,$(filter %.cc,$(USER_SOURCES)),$(eval $(call COMPILE_cc_o_template
 
 $(foreach src,$(filter %.cxx,$(USER_SOURCES)),$(eval $(call COMPILE_cc_o_template,$(SOURCES_DIR)/$(src),$(src:%.cxx=%.o),)))
 
+$(foreach src,$(filter %.cpp,$(USER_SOURCES)),$(eval $(call COMPILE_cc_o_template,$(SOURCES_DIR)/$(src),$(src:%.cpp=%.o),)))
+
 $(foreach src,$(filter %.S,$(USER_SOURCES)),$(eval $(call COMPILE_S_o_template,$(SOURCES_DIR)/$(src),$(src:%.S=%.o),)))
 
 $(foreach src,$(filter %.c,$(USER_GEN_SOURCES)),$(eval $(call COMPILE_c_o_template,$(src),$(src:%.c=%.o),)))
@@ -1179,6 +1200,8 @@ $(foreach src,$(filter %.cc,$(SOLIB_SOURCES)),$(eval $(call COMPILE_cc_o_templat
 
 $(foreach src,$(filter %.cxx,$(SOLIB_SOURCES)),$(eval $(call COMPILE_cc_o_template,$(SOURCES_DIR)/$(src),$(src:%.cxx=%.lo),$(SOLIB_PICFLAGS))))
 
+$(foreach src,$(filter %.cpp,$(SOLIB_SOURCES)),$(eval $(call COMPILE_cc_o_template,$(SOURCES_DIR)/$(src),$(src:%.cpp=%.lo),$(SOLIB_PICFLAGS))))
+
 $(foreach src,$(filter %.S,$(SOLIB_SOURCES)),$(eval $(call COMPILE_S_o_template,$(SOURCES_DIR)/$(src),$(src:%.S=%.lo),$(SOLIB_PICFLAGS))))
 
 $(foreach src,$(filter %.c,$(SOLIB_GEN_SOURCES)),$(eval $(call COMPILE_c_o_template,$(src),$(src:%.c=%.lo),$(SOLIB_PICFLAGS))))
@@ -1209,6 +1232,8 @@ $(foreach src,$(filter %.cc,$(KERN_SOURCES)),$(eval $(call COMPILE_cc_o_kern_tem
 
 $(foreach src,$(filter %.cxx,$(KERN_SOURCES)),$(eval $(call COMPILE_cc_o_kern_template,$(SOURCES_DIR)/$(src),$(src:%.cxx=%.o),)))
 
+$(foreach src,$(filter %.cpp,$(KERN_SOURCES)),$(eval $(call COMPILE_cc_o_kern_template,$(SOURCES_DIR)/$(src),$(src:%.cpp=%.o),)))
+
 $(foreach src,$(filter %.S,$(USER_SOURCES)),$(eval $(call COMPILE_S_o_kern_template,$(SOURCES_DIR)/$(src),$(src:%.S=%.o),)))
 endif
 
@@ -1250,10 +1275,10 @@ $(addprefix $(1)/,$(notdir $(addsuffix .stamp,$(2)))) : $(CONFIG_FILES)
        $(if $(DOXYGEN),@echo "/** @file */" >> "$(2).tmp")
        @echo "#ifndef $(4)" >> "$(2).tmp"
        @echo "#define $(4)" >> "$(2).tmp"
-       @( $(foreach x, $(shell echo '$($(3))' | tr 'x\t ' 'x\n\n' | sed -e 's/^\([^ =]*\)\(=[^ ]\+\|\)$$/\1/' ), \
+       @( $(foreach x, $(shell echo '$($(3))' | tr 'x\t ' 'x\n\n' | $(SED4OMK) -e 's/^\([^ =]*\)\(=[^ ]\+\|\)$$/\1/' ), \
                echo '$(x).$($(x))' ; ) echo ; ) | \
-               sed -e '/^[^.]*\.n$$$$/d' -e '/^[^.]*\.$$$$/d' -e 's/^\([^.]*\)\.[ym]$$$$/\1.1/' | \
-               sed -n -e 's/^\([^.]*\)\.\(.*\)$$$$/#define \1 \2/p' \
+               $(SED4OMK) -e '/^[^.]*\.n$$$$/d' -e '/^[^.]*\.$$$$/d' -e 's/^\([^.]*\)\.[ym]$$$$/\1.1/' | \
+               $(SED4OMK) -n -e 's/^\([^.]*\)\.\(.*\)$$$$/#define \1 \2/p' \
                  >> "$(2).tmp"
        @echo "#endif /*$(4)*/" >> "$(2).tmp"
        @touch "$$@"
@@ -1386,7 +1411,7 @@ $(SOURCES_LIST): $(CONFIG_FILES) $(shell find -name $(MAKEFILE_OMK))
        @mv "$(SOURCES_LIST).tmp2" "$(SOURCES_LIST)"
        @echo "$(SOURCES_LIST): \\" > "$(SOURCES_LIST_D).tmp2"
        @cat "$(SOURCES_LIST_D).tmp"|grep -v "$(SOURCES_LIST_D).tmp"|sort|uniq|\
-               sed -e 's/$$/\\/' >> "$(SOURCES_LIST_D).tmp2"
+               $(SED4OMK) -e 's/$$/\\/' >> "$(SOURCES_LIST_D).tmp2"
        @rm "$(SOURCES_LIST_D).tmp"
        @mv "$(SOURCES_LIST_D).tmp2" "$(SOURCES_LIST_D)"
 endif
@@ -1399,7 +1424,7 @@ sources-list-pass-local:
          echo "$(addsuffix /,$(RELATIVE_DIR:$(SOURCES_LIST_DIR)/%=%))$(h)" >> "$(SOURCES_LIST).tmp";)
        @$(foreach ch,$(config_include_HEADERS), \
          echo "$(USER_INCLUDE_DIR:$(OUTPUT_DIR)/$(addsuffix /,$(SOURCES_LIST_DIR))%=%)/$(ch)" >> "$(SOURCES_LIST).tmp";)
-       @$(foreach h,$(renamed_include_HEADERS),echo '$(h)'|sed -e 's|\(.*\)->.*|$(addsuffix /,$(RELATIVE_DIR:$(SOURCES_LIST_DIR)/%=%))\1|' >> "$(SOURCES_LIST).tmp";)
+       @$(foreach h,$(renamed_include_HEADERS),echo '$(h)'|$(SED4OMK) -e 's|\(.*\)->.*|$(addsuffix /,$(RELATIVE_DIR:$(SOURCES_LIST_DIR)/%=%))\1|' >> "$(SOURCES_LIST).tmp";)
        @$(foreach bin,$(lib_LIBRARIES) $(shared_LIBRARIES) $(bin_PROGRAMS) $(test_PROGRAMS) $(utils_PROGRAMS) \
          $(kernel_LIBRARIES) $(rtlinux_LIBRARIES) $(kernel_MODULES),\
          $(foreach src,$(filter-out %.o,$($(bin)_SOURCES)),echo "$(addsuffix /,$(RELATIVE_DIR:$(SOURCES_LIST_DIR)/%=%))$(src)" >> "$(SOURCES_LIST).tmp";))
@@ -1422,7 +1447,7 @@ export TAGS_CMD
 
 ifeq ($(MAKECMDGOALS),do-tags)
 .PHONY: do-tags
-do-tags: $(shell sed -e '/^\#/d' $(SOURCES_LIST))
+do-tags: $(shell $(SED4OMK) -e '/^\#/d' $(SOURCES_LIST))
        @$(QUIET_CMD_ECHO) "  TAGS    $(SOURCES_LIST_FN)"
        $(Q)$(TAGS_CMD) $^
 endif
@@ -1431,6 +1456,6 @@ endif
 
 cscope: $(SOURCES_LIST)
        @$(QUIET_CMD_ECHO) "  CSCOPE  < $(SOURCES_LIST_FN)"
-       $(Q)sed -e '/^#/d' $(SOURCES_LIST) > cscope.files
+       $(Q)$(SED4OMK) -e '/^#/d' $(SOURCES_LIST) > cscope.files
        $(Q)cscope -b -icscope.files
 #FIXME: see doc to -i in cscope(1)