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# This duplicates more of sw/thirdparty/libtfm/Makefile than I
# would like, but it does the job. Prettier makefiles can wait for another day.
ifndef CRYPTECH_ROOT
CRYPTECH_ROOT := $(abspath ../../..)
endif
REPO := ${CRYPTECH_ROOT}/sw/thirdparty/libtfm
# vpath %.c ${REPO}
# vpath %.h ${REPO}
BITS := 8192
HDR := ${REPO}/tomsfastmath/src/headers/tfm.h
LIB := tomsfastmath/libtfm.a
#CFLAGS += -DTFM_X86
#CFLAGS += -DTFM_NO_ASM
CFLAGS += -fPIC -Wall -W -Wshadow -I${REPO}/tomsfastmath/src/headers -g3 -DFP_MAX_SIZE="(${BITS}*2+(8*DIGIT_BIT))"
TARGETS := $(notdir ${HDR} ${LIB})
all: ${TARGETS}
clean:
rm -rf ${TARGETS} $(notdir ${HDR}.tmp) ${LIB} tomsfastmath/src
distclean: clean
rm -f TAGS
$(notdir ${HDR}): ${HDR}
echo >$@.tmp '/* Configure size of largest bignum we want to handle -- see notes in tfm.pdf */'
echo >>$@.tmp '#define FP_MAX_SIZE (${BITS}*2+(8*DIGIT_BIT))'
echo >>$@.tmp ''
cat >>$@.tmp $^
mv -f $@.tmp $@
$(notdir ${LIB}): ${LIB}
ln -f $^ $@
${LIB}: ${HDR}
(cd ${REPO} && find tomsfastmath/src -type d) | xargs mkdir -p
cd tomsfastmath; ${MAKE} CFLAGS='${CFLAGS}'
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