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#!/bin/sh
echo "Running configure script"
# Find compiler
CC=`"${R_HOME}"/bin/R CMD config CC`
# Detect whether -latomic is needed during linking. This is needed on some
# platforms, notably ARM (Raspberry Pi).
echo "#include <stdint.h>
uint64_t v;
int main() {
return (int)__atomic_load_n(&v, __ATOMIC_ACQUIRE);
}" | ${CC} -x c - -o /dev/null > /dev/null 2>&1
if [ $? -eq 0 ]; then
echo "-latomic linker flag not needed."
else
echo "-latomic linker flag needed."
EXTRA_PKG_LIBS=-latomic
fi
# Write to Makevars
sed -e "s|@extra_pkg_libs@|$EXTRA_PKG_LIBS|" src/Makevars.in > src/Makevars
# Success
exit 0
|
