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|
#!/bin/bash
# mg2d configure script
# partially inspired by/based on the FFmpeg configure script
die() {
echo "$@" >&2
exit 1
}
bootstrap() {
local source_dir
[ -e configure ] && die "Cannot build from the source dir, create a separate build directory"
source_dir=$(realpath $(dirname "$0"))
[ -d "$source_dir" ] || die "Cannot locate source directory"
[ -h src ] || ln -s "$source_dir" src
[ -h Makefile ] || ln -s "$source_dir/Makefile"
echo $source_dir
}
toupper() {
echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
}
is_in() {
value=$1
shift
for var in $*; do
[ $var = $value ] && return 0
done
return 1
}
probe_arch() {
arch=$(cc -dumpmachine | sed 's/-.*//')
}
check_mpi() {
pkg-config --exists mpi || return 1
mpi_cflags=$(pkg-config --cflags mpi)
mpi_libs=$(pkg-config --libs mpi)
}
check_nasm() {
if ! command -v nasm &> /dev/null; then
echo "nasm not found, assembly code will not be built"
return 1
fi
}
check_component() {
name=$1
shift
eval "check_$name" $@ && eval "have_$name=yes"
}
source_dir=$(bootstrap)
CMDLINE_SET="
cc
"
cc=cc
for arg; do
name="${arg%%=*}"
name="${name#--}"
name=$(echo "$name" | sed 's/-/_/g')
val="${arg#*=}"
if is_in $name $CMDLINE_SET; then
eval $name='$val'
continue
fi
die "Unknown commandline argument: $name $val"
done
probe_arch
COMPONENTS_REQUIRED="
mpi
"
COMPONENTS_OPTIONAL="
nasm
"
COMPONENTS="
$COMPONENTS_REQUIRED
$COMPONENTS_OPTIONAL
"
for c in $COMPONENTS_REQUIRED; do
check_component $c || die "Required component $c not found"
done
for c in $COMPONENTS_OPTIONAL; do
check_component $c
done
cat > config.mak <<EOF
SOURCE_DIR = $source_dir
CC = $cc
CFLAGS_DEP = $mpi_cflags
LDFLAGS_DEP = $mpi_libs
EOF
cat > config.h <<EOF
#ifndef MG2D_CONFIG_H
#define MG2D_CONFIG_H
EOF
cat > config.asm << EOF
EOF
case "$arch" in
x86_64)
echo "ARCH_X86_64 = 1" >> config.mak
echo "#define ARCH_X86_64 1" >> config.h
echo "%define ARCH_X86_64 1" >> config.asm
;;
*)
echo "ARCH_X86_64 = 0" >> config.mak
echo "#define ARCH_X86_64 0" >> config.h
echo "%define ARCH_X86_64 0" >> config.asm
;;
esac
for c in $COMPONENTS; do
C=$(toupper $c)
have_ref=have_$c
if [ -n "${!have_ref}" ]; then
val_mak=yes
val_c=1
else
val_mak=no
val_c=0
fi
echo "HAVE_$C = $val_mak" >> config.mak
echo "#define HAVE_$C $val_c" >> config.h
done
echo "#endif // MG2D_CONFIG_H" >> config.h
|
