Remove Emscripten support

autoconf/configure.ac

 dnl === configure.ac --------------------------------------------------------===
 dnl                     The LLVM Compiler Infrastructure
 dnl
 dnl This file is distributed under the University of Illinois Open Source
 dnl License. See LICENSE.TXT for details.
 dnl
 dnl===-----------------------------------------------------------------------===
 dnl This is the LLVM configuration script. It is processed by the autoconf
 dnl program to produce a script named configure. This script contains the
 dnl configuration checks that LLVM needs in order to support multiple platforms.
@@ skipping 1071 matching lines @@
     no)  llvm_cv_enable_crash_overrides="no"  ;;
     *) AC_MSG_ERROR([Invalid setting for --enable-crash-overrides. Use "yes" or "no"]) ;;
   esac],
   llvm_cv_enable_crash_overrides="yes")
 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
   AC_DEFINE([ENABLE_CRASH_OVERRIDES],[1],
             [Define to enable crash handling overrides])
 fi
 
 dnl List all possible targets
-ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend JSBackend NVPTX Hexagon SystemZ R600"
+ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600"
 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
 
 dnl Allow specific targets to be specified for building (or not)
 TARGETS_TO_BUILD=""
 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
     [Build specific host targets: all or target1,target2,... Valid targets are:
      host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon,
      xcore, msp430, nvptx, systemz, r600, js, and cpp (default=all)]),,
     enableval=all)
 if test "$enableval" = host-only ; then
@@ skipping 10 matching lines @@
         aarch64)  TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
         arm64)    TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
         arm)      TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
         mips)     TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
         mipsel)   TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
         mips64)   TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
         mips64el) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
         xcore)    TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
         msp430)   TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
         cpp)      TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
-        js)       TARGETS_TO_BUILD="JSBackend $TARGETS_TO_BUILD" ;; # @LOCALMOD
         hexagon)  TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
         nvptx)    TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
         systemz)  TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
         r600)     TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
         host) case "$llvm_cv_target_arch" in
             x86)         TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
             x86_64)      TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
             Sparc)       TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
             PowerPC)     TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
             AArch64)     TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
@@ skipping 1104 matching lines @@
 AC_CONFIG_MAKEFILE(test/Makefile.tests)
 AC_CONFIG_MAKEFILE(unittests/Makefile)
 AC_CONFIG_MAKEFILE(tools/Makefile)
 AC_CONFIG_MAKEFILE(utils/Makefile)
 AC_CONFIG_MAKEFILE(projects/Makefile)
 AC_CONFIG_MAKEFILE(bindings/Makefile)
 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
 
 dnl Finally, crank out the output
 AC_OUTPUT