Rstem and sentiment package installation issue - r

Question

It seems without Rstem and sentiment packages twitter sentiment analysis
is difficult.
I am trying this Rstem and sentiment packages installation using the tar.gz file
(as no windows binary available in omegahat or in the github of Timothy P. Jurka)
but it gives an error:
installation of package 'Rstem' had non-zero exit status
I tried even command prompt. That gives below error. Any clue how to solve it ? my system is windows 7, R 2.15, Rstudio.
D:\R Projects>R CMD INSTALL Rstem_0.4-1.tar.gz
* installing to library 'D:/R-Econometrics/R-2.15.1/library'
* installing *source* package 'Rstem' ...
** libs
*** arch - i386
D:/R-Econometrics/R-2.15.1/etc/i386/Makeconf:194: warning: overriding recipe for
target `.m.o'
D:/R-Econometrics/R-2.15.1/etc/i386/Makeconf:187: warning: ignoring old recipe f
or target `.m.o'
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c api.c -o api.o
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c danish_stem.c -o danish_stem.o
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c dutch_stem.c -o dutch_stem.o
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c english_stem.c -o english_stem.o
english_stem.c: In function 'r_prelude':
english_stem.c:376:5: warning: label 'lab1' defined but not used
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c finnish_stem.c -o finnish_stem.o
finnish_stem.c: In function 'r_case':
finnish_stem.c:448:21: warning: unused variable 'm'
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c french_stem.c -o french_stem.o
french_stem.c: In function 'french_stem':
french_stem.c:951:25: warning: unused variable 'm'
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c german_stem.c -o german_stem.o
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c mytest.c -o mytest.o
mytest.c: In function 'S_stemWords':
mytest.c:76:3: warning: pointer targets in passing argument 1 of 'Rf_mkChar' dif
fer in signedness
D:/R-Econometrics/R-2.15.1/include/Rinternals.h:628:6: note: expected 'const cha
r *' but argument is of type 'symbol *'
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c norwegian_stem.c -o norwegian_stem.o
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c portuguese_stem.c -o portuguese_stem.o
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c russian_stem.c -o russian_stem.o
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c spanish_stem.c -o spanish_stem.o
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c swedish_stem.c -o swedish_stem.o
gcc -I"D:/R-Econometrics/R-2.15.1/include" -DNDEBUG -I. -I../Snowball/q
-O3 -Wall -std=gnu99 -mtune=core2 -c utilities.c -o utilities.o
process_begin: CreateProcess(NULL, basename Rstem.dll .dll, ...) failed.
process_begin: CreateProcess(NULL, basename Rstem.dll .dll, ...) failed.
process_begin: CreateProcess(NULL, basename Rstem.dll .dll, ...) failed.
"zapi.o danish_stem.o dutch_stem.o english_stem.o finnish_stem.o french_stem.o g
erman_stem.o mytest.o norwegian_stem.o portuguese_stem.o russian_stem.o spanish_
stem.o swedish_stem.o utilities.o" was unexpected at this time.
make: *** [Rstem.dll] Error 255
ERROR: compilation failed for package 'Rstem'
* removing 'D:/R-Econometrics/R-2.15.1/library/Rstem'