Add getheader test

tests/lzma.nim

@@ -0,0 +1,41 @@
+import os, strutils
+
+import nimterop/[build, cimport]
+
+const
+  baseDir = currentSourcePath.parentDir()/"build/liblzma"
+
+static:
+  cDebug()
+
+getHeader(
+  "lzma.h",
+  giturl = "https://github.com/xz-mirror/xz",
+  dlurl = "https://github.com/xz-mirror/xz/archive/$1.zip",
+  outdir = baseDir,
+  conFlags = "--disable-xz --disable-xzdec --disable-lzmadec --disable-lzmainfo"
+)
+
+cPlugin:
+  import strutils
+
+  proc onSymbol*(sym: var Symbol) {.exportc, dynlib.} =
+    sym.name = sym.name.strip(chars = {'_'})
+
+cOverride:
+  type
+    lzma_internal = object
+    lzma_index = object
+    lzma_index_hash = object
+
+    lzma_options_lzma = object
+    lzma_stream_flags = object
+    lzma_block = object
+    lzma_index_iter = object
+
+when not defined(lzmaStatic):
+  cImport(lzmaPath, recurse = true, dynlib = "lzmaLPath")
+else:
+  cImport(lzmaPath, recurse = true)
+
+echo "liblzma version = " & $lzma_version_string()