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patsubst in makefile

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# 1  
Old 06-02-2011
patsubst in makefile
hi,
I have .cpp files in 2 subdirectories within my ../src directory,
so the file structure is:
../src/subdir1/file1.cpp
../src/subdir2/file2.cpp

I am trying to use patsubst as follows:
Code:
SRCDIR = $(shell echo ../src/*)
libname := $(notdir $(basename $(SRCDIR)))
OBJDIR = ../objs
OBJDIRS := $(addprefix $(OBJDIR)/,$(libname))
find_cppfiles = $(wildcard $(dir)/*.cpp)
cppsources :=$(foreach dir, $(SRCDIR),$(find_cppfiles)) 
cppobjects :=$(patsubst $(SRCDIR)/%.cpp,$(OBJDIRS)/%.o, $(cppsources))
echo $(cppsources) $(cppobjects)

but it doesn't work....the echo command returns:
../src/subdir1/file1.cpp
../src/subdir2/file2.cpp
../src/subdir1/file1.cpp
../src/subdir2/file2.cpp

Can you please let me know how I can fix this so that echo $(cppobjects) returns:
../objs/subdir1/file1.o
../objs/subdir2/file2.o

thanks!
# 2  
Old 06-06-2011
Code:
for file in ../src/*
do 
    echo $file|sed 's/src/objs/'
done

# 3  
Old 06-06-2011
thanks,
maybe this is a basic q? but do I assign this statement to a variable...
also, do I need to write a separate sed to change the file extension from .c to .o
# 4  
Old 06-06-2011
u can replace multiple occurance in the same sed itself for making change inside file.

sample one.

Code:
echo "first string,Second string"|sed 's/first/test1/g;s/second/test2/g' 
test1 string,test2 string

for renaming file you may have to write something after declaring variables for new file names or something like this.

Code:
mv filename.cpp `echo filename.cpp|sed 's/\.cpp/\.o/'`

Thanks
SHa
This User Gave Thanks to Shahul For This Post:
bacpp
# 5  
Old 06-06-2011
thanks Shahul,

that worked Smilie
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