termux-packages/packages/libllvm/tools-clang-lib-Driver-ToolChains-Linux.cpp.patch

--- tools/clang/lib/Driver/ToolChains/Linux.cpp.orig	2019-12-21 22:30:03.676720096 +0000
+++ ./tools/clang/lib/Driver/ToolChains/Linux.cpp	2019-12-21 22:34:42.941719383 +0000
@@ -316,6 +316,41 @@
 
   const std::string OSLibDir = getOSLibDir(Triple, Args);
   const std::string MultiarchTriple = getMultiarchTriple(D, Triple, SysRoot);
+  bool NativeBuild = true;
+
+  if(IsAndroid) {
+    if (MultiarchTriple == llvm::sys::getDefaultTargetTriple())
+      addPathIfExists(D, SysRoot + "@TERMUX_PREFIX@/lib", Paths);
+    else
+      NativeBuild = false;
+
+    if (Arch == llvm::Triple::aarch64) {
+      addPathIfExists(D, SysRoot + "@TERMUX_PREFIX@/aarch64-linux-android/lib", Paths);
+      addPathIfExists(D, SysRoot + "/system/lib64", Paths);
+      if (!NativeBuild)
+        ExtraOpts.push_back("-rpath=@TERMUX_PREFIX@/aarch64-linux-android/lib");
+    }
+    else if (Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb) {
+      addPathIfExists(D, SysRoot + "@TERMUX_PREFIX@/arm-linux-androideabi/lib", Paths);
+      addPathIfExists(D, SysRoot + "/system/lib", Paths);
+      if (!NativeBuild)
+        ExtraOpts.push_back("-rpath=@TERMUX_PREFIX@/arm-linux-androideabi/lib");
+    }
+    else if (Arch == llvm::Triple::x86_64) {
+      addPathIfExists(D, SysRoot + "@TERMUX_PREFIX@/x86_64-linux-android/lib", Paths);
+      addPathIfExists(D, SysRoot + "/system/lib64", Paths);
+      if (!NativeBuild)
+        ExtraOpts.push_back("-rpath=@TERMUX_PREFIX@/x86_64-linux-android/lib");
+    }
+    else if (Arch == llvm::Triple::x86) {
+      addPathIfExists(D, SysRoot + "@TERMUX_PREFIX@/i686-linux-android/lib", Paths);
+      addPathIfExists(D, SysRoot + "/system/lib", Paths);
+      if (!NativeBuild)
+        ExtraOpts.push_back("-rpath=@TERMUX_PREFIX@/i686-linux-android/lib");
+    }
+
+    ExtraOpts.push_back("-rpath=@TERMUX_PREFIX@/lib");
+  }
 
   // Add the multilib suffixed paths where they are available.
   if (GCCInstallation.isValid()) {
@@ -656,8 +691,27 @@
     return;
 
   if (!DriverArgs.hasArg(options::OPT_nostdlibinc))
+	if  (getTriple().isAndroid()) {
+	  switch (getTriple().getArch()) {
+        case llvm::Triple::x86_64:
+	addSystemInclude(DriverArgs, CC1Args, SysRoot + "@TERMUX_PREFIX@/include/x86_64-linux-android");
+	break;
+	case llvm::Triple::x86:
+	addSystemInclude(DriverArgs, CC1Args, SysRoot + "@TERMUX_PREFIX@/include/i686-linux-android");
+	break;
+	case llvm::Triple::aarch64:
+	addSystemInclude(DriverArgs, CC1Args, SysRoot + "@TERMUX_PREFIX@/include/aarch64-linux-android");
+	break;
+	case llvm::Triple::arm:
+	case llvm::Triple::thumb:
+	addSystemInclude(DriverArgs, CC1Args, SysRoot + "@TERMUX_PREFIX@/include/arm-linux-androideabi");
+	break;
+	default:
+	break;
+	}
+	                                                                                                       
     addSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/local/include");
-
+  }
   SmallString<128> ResourceDirInclude(D.ResourceDir);
   llvm::sys::path::append(ResourceDirInclude, "include");
   if (!DriverArgs.hasArg(options::OPT_nobuiltininc) &&
@@ -975,7 +1029,7 @@
 }
 
 bool Linux::isPIEDefault() const {
-  return (getTriple().isAndroid() && !getTriple().isAndroidVersionLT(16)) ||
+  return getTriple().isAndroid()  ||
           getTriple().isMusl() || getSanitizerArgs().requiresPIE();
 }