In fact, the « ls -d » command must be replaced py the macro realpath because «
ls » sort the list of filepaths :
FileSearchLibPath = $(foreach __lib, $(1:-l%=%), \
$(firstword $(realpath \
$(foreach __pattern, $(.LIBPATTERNS), \
$(foreach __dir, . $(subst :, , $(VPATH)) /lib /usr/lib $(prefix)/lib, $
(__dir)/$(shell echo "$(__pattern)" | sed "s,%,$(__lib),")) \
))))
-----Message d'origine-----
De : ELASRI Patrice SOFRECOM
Envoyé : jeudi 28 février 2008 14:42
À : '[email protected]'
Objet : RE : A way to emulate "Directory Search for Link Libraries"
I found a surrounding solution by writting a macro which emulates the
"Directory Search for Link Libraries" :
FileSearchLibPath = $(foreach __lib, $(1:-l%=%), \
$(shell \
ls -d \
$(foreach __pattern, $(.LIBPATTERNS), \
$(foreach __dir, . $(subst :, , $(VPATH)) /lib /usr/lib $(prefix)/lib, $
(__dir)/$(shell echo "$(__pattern)" | sed "s,%,$(__lib),")) \
) 2>/dev/null | sed "1s,//,/,g; q"))
Now, my rule looks like the following :
exe_target_file: object ... $(filter %.a, $(call FileSearchLibPath, $(LDLIBS)))
| $(LDLIBS)
It seems not necessary to call the macro with filter-out to get dynamic
libraries, because gmake removes prerequisites which already exist on the
dependences line.
However, this solution increases greatly the processing time.
-----Message d'origine-----
De : ELASRI Patrice SOFRECOM
Envoyé : jeudi 28 février 2008 11:49
À : '[email protected]'
Objet : A way to emulate "Directory Search for Link Libraries"
Hello,
In order not to recompile the target when one dynamic library has changed, I
decided to separate dynamic from static libraries in the rule's prerequisites,
as following :
exe_target_file: object ... static_libraries | dynamic_libraries
However, the library list is stored in a unique variable $(LDLIBS), under the
following form "-lname".
So my problem is to filter the static libraries from the result of the
"Directory Search for Link Libraries", applied to this variable content.
To do that, I need to emulate/perform this operation before applying the filter
function :
exe_target_file: object ... $(filter %.a, $(dir_search $(LDLIBS))) |
$(filter-out %.a, $(dir_search $(LDLIBS)))
Does someone have any idea to resolve this problem ?
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