support for clang

config/nimrod.cfg

@@ -60,6 +60,7 @@ hint[LineTooLong]=off
 @if unix:
   @if not bsd:
     gcc.options.linker = "-ldl"
+    clang.options.linker = "-ldl"
     tcc.options.linker = "-ldl"
   @end
 @end
@@ -96,6 +97,12 @@ llvm_gcc.options.always = "-w"
 llvm_gcc.options.speed = "-O2"
 llvm_gcc.options.size = "-Os"
 
+# Configuration for the LLVM CLang compiler:
+clang.options.debug = "-g"
+clang.options.always = "-w"
+clang.options.speed = "-O3"
+clang.options.size = "-Os"
+
 # Configuration for the Visual C/C++ compiler:
 vcc.options.linker = r"/F33554432" # set the stack size to 8 MB
 vcc.options.debug = "/RTC1 /ZI"

rod/extccomp.nim

@@ -15,8 +15,8 @@ import
 
 type 
   TSystemCC* = enum 
-    ccNone, ccGcc, ccLLVM_Gcc, ccLcc, ccBcc, ccDmc, ccWcc, ccVcc, ccTcc, ccPcc, 
+    ccNone, ccGcc, ccLLVM_Gcc, ccCLang, ccLcc, ccBcc, ccDmc, ccWcc, ccVcc, 
-    ccUcc, ccIcc, ccGpp
+    ccTcc, ccPcc, ccUcc, ccIcc, ccGpp
   TInfoCCProp* = enum         # properties of the C compiler:
     hasSwitchRange,           # CC allows ranges in switch statements (GNU C)
     hasComputedGoto,          # CC has computed goto (GNU C extension)
@@ -72,6 +72,20 @@ const
      debug: "", pic: "-fPIC", 
      asmStmtFrmt: "asm($1);$n", 
      props: {hasSwitchRange, hasComputedGoto, hasCpp}), 
+    (name: "clang", 
+     objExt: "o", 
+     optSpeed: " -O3 -ffast-math ", 
+     optSize: " -Os -ffast-math ", 
+     compilerExe: "clang", 
+     compileTmpl: "-c $options $include -o $objfile $file", 
+     buildGui: " -mwindows", 
+     buildDll: " -shared", 
+     linkerExe: "clang", 
+     linkTmpl: "$options $buildgui $builddll -o $exefile $objfiles", 
+     includeCmd: " -I", 
+     debug: "", pic: "-fPIC", 
+     asmStmtFrmt: "asm($1);$n", 
+     props: {hasSwitchRange, hasComputedGoto, hasCpp}), 
     (name: "lcc", 
      objExt: "obj", 
      optSpeed: " -O -p6 ",