nim added - host must be linux, no nimble

pkg/nim/build.sh

@@ -0,0 +1,18 @@
+if [ "$TARGET_OS" = "linux" ] && [ "$TARGET_ARCH" = "x86_64" ]
+then
+  src=$(fetch_untar \
+    "https://nim-lang.org/download/nim-2.0.2-linux_x64.tar.xz" \
+    "nim.tar.xz" \
+    "047dde8ff40b18628ac1188baa9ca992d05f1f45c5121d1d07a76224f06e1551")
+else
+  >&2 echo "unsupported os+arch for nim"
+fi
+
+cd "$BUILD_OUT"
+mkdir bin
+ln -s $src/bin/nim bin
+cp "$BUILD_PKG"/nimc bin
+cp "$BUILD_PKG"/nimcc bin
+cp "$BUILD_PKG"/nimi bin
+ln -s $(which ar) bin/llvm-ar
+

pkg/nim/nimc

@@ -0,0 +1,10 @@
+#!/usr/bin/env sh
+exec nim c \
+--cc:clang \
+--os:$(nimi os $TARGET_OS) \
+--cpu:$(nimi arch $TARGET_ARCH) \
+--clang.exe="nimcc" \
+--clang.linkerexe="nimcc" \
+--verbosity:0 \
+$(nimi opt $OPT_ZIG) \
+"$@"

pkg/nim/nimcc

@@ -0,0 +1,2 @@
+#!/usr/bin/env sh
+exec zig cc -target $TARGET -O$OPT "$@"

pkg/nim/nimi

@@ -0,0 +1,65 @@
+#!/usr/bin/env sh
+
+nimos() {
+  os=$1
+  if [ "$os" = "linux" ]
+  then
+    echo "Linux"
+  elif [ "$os" = "macos" ]
+  then
+    echo "MacOSX"
+  elif [ "$os" = "windows" ]
+  then
+    echo "Windows"
+  else
+    >&2 echo "unrecognized os for nim $os"
+    exit 1
+  fi
+}
+
+nimarch() {
+  arch=$1
+  if [ "$arch" = "x86_64" ]
+  then
+    echo "amd64"
+  elif [ "$arch" = "aarch64" ]
+  then
+    echo "arm64"
+  else
+    >&2 echo "unrecognized arch for nim $arch"
+    exit 1
+  fi
+}
+
+nimopt() {
+  opt=$1
+  case $opt in
+    Debug)
+      ;;
+    ReleaseSmall)
+      echo "-d:release --opt:size"
+      ;;
+    Release*)
+      echo "-d:release"
+      ;;
+    *)
+      >&2 echo "unrecognized nimi opt mode $opt"
+      ;;
+  esac
+}
+
+case $1 in
+  os)
+    nimos $2
+    ;;
+  arch)
+    nimarch $2
+    ;;
+  opt)
+    nimopt $2
+    ;;
+  *)
+    >&2 echo "unrecognized nimi command $1"
+    exit 1
+    ;;
+esac

pkg/nimhello/build.sh

@@ -0,0 +1,34 @@
+needtool nim
+export PATH="$BUILD_TOOLS/nim/bin:$PATH"
+
+# Binary
+cat <<EOF > hello.nim
+echo "Hello World"
+EOF
+nimc hello.nim
+
+# Static library
+cat <<EOF > hellofn.nim
+proc hello(name:cstring) {.exportc.} =
+  echo name
+EOF
+nimc --app:staticlib hellofn.nim
+
+cat <<EOF > hello2.c
+extern void hello(char*);
+
+int main(int argc, char** argv) {
+  hello(argv[1]);
+}
+EOF
+cc -target $TARGET -O$OPT \
+  -o $(zigi exe hello2) \
+  hello2.c \
+  $(zigi lib hellofn) \
+  -lc
+
+cd "$BUILD_OUT"
+mkdir bin lib
+cp "$HOME"/$(zigi exe hello) bin
+cp "$HOME"/$(zigi exe hello2) bin
+cp "$HOME"/$(zigi lib hellofn) lib