libllvm: Fix patch and bump revision

packages/libllvm/build.sh

@@ -2,7 +2,7 @@ TERMUX_PKG_HOMEPAGE=http://clang.llvm.org/
 TERMUX_PKG_DESCRIPTION="Modular compiler and toolchain technologies library"
 _PKG_MAJOR_VERSION=4.0
 TERMUX_PKG_VERSION=${_PKG_MAJOR_VERSION}.1
-TERMUX_PKG_REVISION=2
+TERMUX_PKG_REVISION=3
 TERMUX_PKG_SRCURL=http://llvm.org/releases/${TERMUX_PKG_VERSION}/llvm-${TERMUX_PKG_VERSION}.src.tar.xz
 TERMUX_PKG_SHA256=da783db1f82d516791179fe103c71706046561f7972b18f0049242dee6712b51
 TERMUX_PKG_HOSTBUILD=true

packages/libllvm/gcc_loop.patch

@@ -1,20 +0,0 @@
-Disable calling into gcc from clang.
-
-Clang calls into gcc if it tries to compile a language it doesn't understand.
-On termux gcc is a symlink to clang, so this leads into fork loop until
-the whole system runs out of memory.
-
---- libllvm/tools/clang/lib/Driver/ToolChains/Gnu.cpp	2017-08-31 21:08:36.602287744 +0200
-+++ libllvm-mod/tools/clang/lib/Driver/ToolChains/Gnu.cpp	2017-09-01 01:00:41.695209952 +0200
-@@ -157,9 +157,9 @@
-   if (!customGCCName.empty())
-     GCCName = customGCCName.c_str();
-   else if (D.CCCIsCXX()) {
--    GCCName = "g++";
-+    GCCName = "false";
-   } else
--    GCCName = "gcc";
-+    GCCName = "false";
- 
-   const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath(GCCName));
-   C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));

packages/libllvm/tools-clang-lib-Driver-Tools.cpp.patch

@@ -1,6 +1,23 @@
 diff -u -r ../llvm-3.9.0.src/tools/clang/lib/Driver/Tools.cpp ./tools/clang/lib/Driver/Tools.cpp
 --- ../llvm-3.9.0.src/tools/clang/lib/Driver/Tools.cpp	2016-08-13 16:43:56.000000000 -0400
 +++ ./tools/clang/lib/Driver/Tools.cpp	2016-09-04 06:15:59.703422745 -0400
+@@ -7415,10 +7415,12 @@
+   const char *GCCName;
+   if (!customGCCName.empty())
+     GCCName = customGCCName.c_str();
+-  else if (D.CCCIsCXX()) {
+-    GCCName = "g++";
+-  } else
+-    GCCName = "gcc";
++  else
++    // Termux modification: Disable calling into gcc from clang.
++    // Clang calls into gcc if it tries to compile a language it doesn't understand.
++    // On Termux gcc is a symlink to clang, so this leads into fork loop until
++    // the whole system runs out of memory.
++    GCCName = "false";
+ 
+   const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath(GCCName));
+   C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
 @@ -9357,9 +9357,12 @@
    const llvm::Triple::ArchType Arch = ToolChain.getArch();
    const bool isAndroid = ToolChain.getTriple().isAndroid();