diff --git a/README.md b/README.md
index 0c4bb89..423b706 100644
--- a/README.md
+++ b/README.md
@@ -73,6 +73,10 @@ _[n.global]_
 
 ```filter``` = string to identify and recurse into library .h files in #include statements and exclude standard headers
 
+```cpp_compiler``` = string to specify a CPP compiler executable. [default: g++]
+
+```c_compiler``` = string to specify a C compiler executable. [default: gcc]
+
 _[n.include]_
 
 List of all directories, one per line, to include in the search path. This is used by:-
diff --git a/nimgen.nim b/nimgen.nim
index 2a5a561..942afc6 100644
--- a/nimgen.nim
+++ b/nimgen.nim
@@ -8,6 +8,8 @@ var
   gConfig: Config
   gFilter = ""
   gQuotes = true
+  gCppCompiler = "g++"
+  gCCompiler = "gcc"
   gOutput = ""
   gIncludes: seq[string] = @[]
   gExcludes: seq[string] = @[]
@@ -376,7 +378,7 @@ proc getDefines(file: string, inline=false): string =
 
 proc runPreprocess(file, ppflags, flags: string, inline: bool): string =
   var
-    pproc = if flags.contains("cpp"): "g++" else: "gcc"
+    pproc = if flags.contains("cpp"): gCppCompiler else: gCCompiler
     cmd = "$# -E $# $#" % [pproc, ppflags, file]
 
   for inc in gIncludes:
@@ -680,6 +682,11 @@ proc runCfg(cfg: string) =
               quit(1)
       createDir(gOutput)
 
+    if gConfig["n.global"].hasKey("cpp_compiler"):
+      gCppCompiler = gConfig["n.global"]["cpp_compiler"]
+    if gConfig["n.global"].hasKey("c_compiler"):
+      gCCompiler = gConfig["n.global"]["c_compiler"]
+
     if gConfig["n.global"].hasKey("filter"):
       gFilter = gConfig["n.global"]["filter"]
     if gConfig["n.global"].hasKey("quotes"):