Interop: do not use hardcoded paths to LLVM

also use the defined LLVM toolchain to build JNI interop stub libs

experiments/translator-bc/build.gradle

@@ -42,3 +42,8 @@ sourceSets {
     main.java.srcDirs += 'src/main/kotlin'
 }
 
+genInteropStubs {
+    environment 'CPATH'        : "$llvmInstallPath/include"
+    environment 'LIBRARY_PATH' : "$llvmInstallPath/lib"
+}
+

experiments/translator-bc/src/main/kotlin/org/jetbrains/kotlin/native/llvm/LLVM.def

@@ -3,27 +3,27 @@ libName = llvmbridge
 headers = llvm-c/Core.h llvm-c/ExecutionEngine.h llvm-c/Target.h llvm-c/Analysis.h llvm-c/BitWriter.h
 
 
-compiler = cc
+compiler = clang
 
-compilerOpts = -std=c99 -I/opt/local/libexec/llvm-3.8/include  -fPIC \
+compilerOpts = -std=c99 -fPIC \
     -Wall -W -Wno-unused-parameter -Wwrite-strings -Wmissing-field-initializers \
     -pedantic -Wno-long-long -Wcovered-switch-default -Wdelete-non-virtual-dtor \
     -DNDEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
 
 
-linker = c++
+linker = clang++
 
 linkerOpts = -stdlib=libc++ -fPIC -fvisibility-inlines-hidden \
     -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers \
     -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -Wdelete-non-virtual-dtor \
     -std=c++11 \
     -DNDEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS \
-    -L/opt/local/libexec/llvm-3.8/lib -Wl,-search_paths_first -Wl,-headerpad_max_install_names \
+    -Wl,-search_paths_first -Wl,-headerpad_max_install_names \
     -lLLVMX86Disassembler -lLLVMX86AsmParser -lLLVMX86CodeGen -lLLVMSelectionDAG -lLLVMAsmPrinter \
     -lLLVMX86Desc -lLLVMMCDisassembler -lLLVMX86Info -lLLVMX86AsmPrinter -lLLVMX86Utils -lLLVMInterpreter \
     -lLLVMCodeGen -lLLVMScalarOpts -lLLVMInstCombine -lLLVMInstrumentation -lLLVMProfileData -lLLVMTransformUtils \
     -lLLVMBitWriter -lLLVMExecutionEngine -lLLVMTarget -lLLVMAnalysis -lLLVMRuntimeDyld -lLLVMObject -lLLVMMCParser \
     -lLLVMBitReader -lLLVMMC -lLLVMCore -lLLVMSupport -lcurses -lpthread -lz -lm \
-    -L/opt/local/lib -lffi
+    -lffi
 
 excludedFunctions =