[SCCP] Can't go from overdefined to constant
[oota-llvm.git] / autoconf / configure.ac
index 4919e84de2578a5503cab08be39601ae95de9632..02ab161e3b035a08c49917cf12a9e79db435b7db 100644 (file)
@@ -32,10 +32,10 @@ dnl===-----------------------------------------------------------------------===
 dnl Initialize autoconf and define the package name, version number and
 dnl address for reporting bugs.
 
 dnl Initialize autoconf and define the package name, version number and
 dnl address for reporting bugs.
 
-AC_INIT([LLVM],[3.7.0svn],[http://llvm.org/bugs/])
+AC_INIT([LLVM],[3.8.0svn],[http://llvm.org/bugs/])
 
 LLVM_VERSION_MAJOR=3
 
 LLVM_VERSION_MAJOR=3
-LLVM_VERSION_MINOR=7
+LLVM_VERSION_MINOR=8
 LLVM_VERSION_PATCH=0
 LLVM_VERSION_SUFFIX=svn
 
 LLVM_VERSION_PATCH=0
 LLVM_VERSION_SUFFIX=svn
 
@@ -74,7 +74,7 @@ if test ${srcdir} != "." ; then
 fi
 
 dnl Quit if it is an in-source build
 fi
 
 dnl Quit if it is an in-source build
-if test ${srcdir} == "." ; then
+if test ${srcdir} = "." ; then
   AC_MSG_ERROR([In-source builds are not allowed. Please configure from a separate build directory!])
 fi
 
   AC_MSG_ERROR([In-source builds are not allowed. Please configure from a separate build directory!])
 fi
 
@@ -133,6 +133,7 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __clang__
                                      llvm_cv_cxx_compiler=gcc, [])])
 AC_LANG_POP([C++])
 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
                                      llvm_cv_cxx_compiler=gcc, [])])
 AC_LANG_POP([C++])
 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
+AC_SUBST(CXX_COMPILER,$llvm_cv_cxx_compiler)
 
 dnl Configure all of the projects present in our source tree. While we could
 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
 
 dnl Configure all of the projects present in our source tree. While we could
 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
@@ -430,6 +431,7 @@ AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
   arm64*-*)               llvm_cv_target_arch="AArch64" ;;
   arm*-*)                 llvm_cv_target_arch="ARM" ;;
   aarch64*-*)             llvm_cv_target_arch="AArch64" ;;
   arm64*-*)               llvm_cv_target_arch="AArch64" ;;
   arm*-*)                 llvm_cv_target_arch="ARM" ;;
   aarch64*-*)             llvm_cv_target_arch="AArch64" ;;
+  avr-*)                  llvm_cv_target_arch="AVR" ;;
   mips-* | mips64-*)      llvm_cv_target_arch="Mips" ;;
   mipsel-* | mips64el-*)  llvm_cv_target_arch="Mips" ;;
   xcore-*)                llvm_cv_target_arch="XCore" ;;
   mips-* | mips64-*)      llvm_cv_target_arch="Mips" ;;
   mipsel-* | mips64el-*)  llvm_cv_target_arch="Mips" ;;
   xcore-*)                llvm_cv_target_arch="XCore" ;;
@@ -467,6 +469,7 @@ case $host in
   arm64*-*)               host_arch="AArch64" ;;
   arm*-*)                 host_arch="ARM" ;;
   aarch64*-*)             host_arch="AArch64" ;;
   arm64*-*)               host_arch="AArch64" ;;
   arm*-*)                 host_arch="ARM" ;;
   aarch64*-*)             host_arch="AArch64" ;;
+  avr-*)                  host_arch="AVR" ;;
   mips-* | mips64-*)      host_arch="Mips" ;;
   mipsel-* | mips64el-*)  host_arch="Mips" ;;
   xcore-*)                host_arch="XCore" ;;
   mips-* | mips64-*)      host_arch="Mips" ;;
   mipsel-* | mips64el-*)  host_arch="Mips" ;;
   xcore-*)                host_arch="XCore" ;;
@@ -800,6 +803,7 @@ else
     PowerPC)     AC_SUBST(TARGET_HAS_JIT,1) ;;
     x86_64)      AC_SUBST(TARGET_HAS_JIT,1) ;;
     ARM)         AC_SUBST(TARGET_HAS_JIT,1) ;;
     PowerPC)     AC_SUBST(TARGET_HAS_JIT,1) ;;
     x86_64)      AC_SUBST(TARGET_HAS_JIT,1) ;;
     ARM)         AC_SUBST(TARGET_HAS_JIT,1) ;;
+    AVR)         AC_SUBST(TARGET_HAS_JIT,0) ;;
     Mips)        AC_SUBST(TARGET_HAS_JIT,1) ;;
     XCore)       AC_SUBST(TARGET_HAS_JIT,0) ;;
     MSP430)      AC_SUBST(TARGET_HAS_JIT,0) ;;
     Mips)        AC_SUBST(TARGET_HAS_JIT,1) ;;
     XCore)       AC_SUBST(TARGET_HAS_JIT,0) ;;
     MSP430)      AC_SUBST(TARGET_HAS_JIT,0) ;;
@@ -1339,7 +1343,7 @@ AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
 AC_ARG_WITH(clang-default-openmp-runtime,
   AS_HELP_STRING([--with-clang-default-openmp-runtime],
     [The default OpenMP runtime for Clang.]),,
 AC_ARG_WITH(clang-default-openmp-runtime,
   AS_HELP_STRING([--with-clang-default-openmp-runtime],
     [The default OpenMP runtime for Clang.]),,
-    withval="libgomp")
+    withval="libomp")
 AC_DEFINE_UNQUOTED(CLANG_DEFAULT_OPENMP_RUNTIME,"$withval",
                    [Default OpenMP runtime used by -fopenmp.])
 
 AC_DEFINE_UNQUOTED(CLANG_DEFAULT_OPENMP_RUNTIME,"$withval",
                    [Default OpenMP runtime used by -fopenmp.])
 
@@ -1548,25 +1552,31 @@ AC_MSG_RESULT([ok])
 
 dnl Check optional compiler flags.
 AC_MSG_CHECKING([optional compiler flags])
 
 dnl Check optional compiler flags.
 AC_MSG_CHECKING([optional compiler flags])
-CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
-CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
-CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
-
-dnl GCC's potential uninitialized use analysis is weak and presents lots of
-dnl false positives, so disable it.
-NO_UNINITIALIZED=
-NO_MAYBE_UNINITIALIZED=
-if test "$GXX" = "yes"
-then
-  CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
-  dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
-  dnl known to be uninitialized from cases which might be uninitialized.  We
-  dnl still want to catch the first kind of errors.
-  if test -z "$NO_MAYBE_UNINITIALIZED"
-  then
-    CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
-  fi
-fi
+case "$llvm_cv_cxx_compiler" in
+  clang)
+    CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
+    CXX_FLAG_CHECK(MISSING_FIELD_INITIALIZERS, [-Wmissing-field-initializers])
+    CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
+    ;;
+  gcc)
+    dnl If we're using gcc check for -Wno-missing-field-initializers as gcc will warn
+    dnl on plain open brace initializations. clang won't so use -Wmissing-field-initializers
+    dnl there.
+    CXX_FLAG_CHECK(MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
+    CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
+    CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
+    CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
+    dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
+    dnl known to be uninitialized from cases which might be uninitialized.  We
+    dnl still want to catch the first kind of errors.
+    if test -z "$NO_MAYBE_UNINITIALIZED"
+    then
+      CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
+    fi
+    ;;
+  unknown)
+    ;;
+esac
 
 dnl Check for misbehaving -Wcomment (gcc-4.7 has this) and maybe add
 dnl -Wno-comment to the flags.
 
 dnl Check for misbehaving -Wcomment (gcc-4.7 has this) and maybe add
 dnl -Wno-comment to the flags.
@@ -1587,7 +1597,7 @@ int main() { return 0; }
 AC_SUBST(NO_COMMENT, [$no_comment])
 CXXFLAGS="$llvm_cv_old_cxxflags"
 
 AC_SUBST(NO_COMMENT, [$no_comment])
 CXXFLAGS="$llvm_cv_old_cxxflags"
 
-AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED $NO_COMMENT])
+AC_MSG_RESULT([$NO_VARIADIC_MACROS $MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED $NO_COMMENT])
 
 AC_ARG_WITH([python],
             [AS_HELP_STRING([--with-python], [path to python])],
 
 AC_ARG_WITH([python],
             [AS_HELP_STRING([--with-python], [path to python])],
@@ -1628,10 +1638,12 @@ dnl===-----------------------------------------------------------------------===
 
 AC_CHECK_LIB(m,sin)
 if test "$llvm_cv_os_type" = "MingW" ; then
 
 AC_CHECK_LIB(m,sin)
 if test "$llvm_cv_os_type" = "MingW" ; then
-  AC_CHECK_LIB(imagehlp, main)
+  dnl mingw-gcc's driver doesn't imply -lole32 by default so we may need this
+  dnl when being built with gcc for bootstrapping purposes.
   AC_CHECK_LIB(ole32, main)
   AC_CHECK_LIB(psapi, main)
   AC_CHECK_LIB(shell32, main)
   AC_CHECK_LIB(ole32, main)
   AC_CHECK_LIB(psapi, main)
   AC_CHECK_LIB(shell32, main)
+  AC_CHECK_LIB(uuid,main)
 fi
 
 dnl dlopen() is required for plugin support.
 fi
 
 dnl dlopen() is required for plugin support.
@@ -1787,7 +1799,6 @@ dnl Generally we're looking for POSIX headers.
 AC_HEADER_DIRENT
 AC_HEADER_MMAP_ANONYMOUS
 AC_HEADER_STAT
 AC_HEADER_DIRENT
 AC_HEADER_MMAP_ANONYMOUS
 AC_HEADER_STAT
-AC_HEADER_SYS_WAIT
 AC_HEADER_TIME
 
 AC_LANG_PUSH([C++])
 AC_HEADER_TIME
 
 AC_LANG_PUSH([C++])
@@ -1799,7 +1810,6 @@ AC_LANG_POP([C++])
 
 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
 
 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
-AC_CHECK_HEADERS([utime.h])
 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
 AC_CHECK_HEADERS([valgrind/valgrind.h])
 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
 AC_CHECK_HEADERS([valgrind/valgrind.h])
@@ -1877,10 +1887,9 @@ AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
 AC_CHECK_FUNCS([strerror strerror_r setenv ])
 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
 AC_CHECK_FUNCS([strerror strerror_r setenv ])
 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
-AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
+AC_CHECK_FUNCS([setjmp longjmp writev])
 AC_CHECK_FUNCS([futimes futimens])
 AC_C_PRINTF_A
 AC_CHECK_FUNCS([futimes futimens])
 AC_C_PRINTF_A
-AC_FUNC_RAND48
 
 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
 AC_CHECK_DECLS([arc4random])
 
 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
 AC_CHECK_DECLS([arc4random])
@@ -2233,3 +2242,14 @@ AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
 
 dnl Finally, crank out the output
 AC_OUTPUT
 
 dnl Finally, crank out the output
 AC_OUTPUT
+echo ""
+echo ""
+echo "################################################################################"
+echo "################################################################################"
+echo "The LLVM project has deprecated building with configure & make."
+echo "The autoconf-based makefile build system will be removed in the 3.9 release."
+echo ""
+echo "Please migrate to the CMake-based build system."
+echo "For more information see: http://llvm.org/docs/CMake.html"
+echo "################################################################################"
+echo "################################################################################"