Subversion Repositories core_arm

#Konrad Eisele<eiselekd@web.de>,2003

ifdef QUIET
 quiet=q_
else
 quiet=
endif

# ===========================================================================
# Generic stuff
# ===========================================================================

# function to only execute the passed command if necessary
# >'< substitution is for echo to work, >$< substitution to preserve $ when reloading .cmd file
# note: when using inline perl scripts [perl -e '...$$t=1;...'] in $(cmd_xxx) double $$ your perl vars

if_changed = $(if $(strip $? \
                          $(filter-out $(cmd_$(1)),$(cmd_$@))\
                          $(filter-out $(cmd_$@),$(cmd_$(1)))),\
        @set -e; \
        $(if $($(quiet)cmd_$(1)),echo '  $(subst ','\'',$($(quiet)cmd_$(1)))';) \
        $(cmd_$(1)); \
        echo 'cmd_$@ := $(subst $$,$$$$,$(subst ','\'',$(cmd_$(1))))' > $(@D)/.$(@F).cmd)



if_changed_dep = $(if $(strip $? $(filter-out FORCE $(wildcard $^),$^)\
                          $(filter-out $(cmd_$(1)),$(cmd_$@))\
                          $(filter-out $(cmd_$@),$(cmd_$(1)))),\
        @set -e; \
        $(if $($(quiet)cmd_$(1)),echo '  $(subst ','\'',$($(quiet)cmd_$(1)))';) \
        $(cmd_$(1)); \
        echo 'cmd_$@ := $(subst $$,$$$$,$(subst ','\'',$(cmd_$(1))))' > $(@D)/.$(@F).cmd; \
        echo -n '$(obj)/' >> $(@D)/.$(@F).cmd; \
        cat $(depfile)    >> $(@D)/.$(@F).cmd; \
        rm -f $(depfile); )

# The temporary file to save gcc -MD generated dependencies must not
# contain a comma
depfile = $(subst $(comma),_,$(@D)/.$(@F).d)

c_flags        = -Wp,-MD,$(depfile) $(CFLAGS) $(LOCAL_CFLAGS)  $(EXTRA_CFLAGS) $(CFLAGS_$(*F).o) 
a_flags        = -Wp,-MD,$(depfile) $(AFLAGS)  $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o) 
ld_flags       = $(LDFLAGS) $(LDFLAGS_$(@F)) 

pathsearch        = $(firstword $(wildcard $(addsuffix /$(1),$(subst :, ,$(PATH)))))
pathsearch-exit   = $(if $(strip $(call pathsearch,$(1))),,@echo $(2);exit 1 )
pathsearch-return = $(strip $(call pathsearch,$(1)))