[omp] Add a configuration variable for the default OpenMP runtime.

[oota-llvm.git] / autoconf / configure.ac

diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index e699ee631e56e3f91a25bec1dd08696e9f8a9caf..5ca40ec373b6af0d5f44192e8aa6785620621e87 100644 (file)
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -51,8 +51,8 @@ AC_SUBST([LLVM_VERSION_SUFFIX])
 
 dnl Provide a copyright substitution and ensure the copyright notice is included
 dnl in the output of --version option of the generated configure script.
 
 dnl Provide a copyright substitution and ensure the copyright notice is included
 dnl in the output of --version option of the generated configure script.

-AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign."])
-AC_COPYRIGHT([Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign.])
+AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2015 University of Illinois at Urbana-Champaign."])
+AC_COPYRIGHT([Copyright (c) 2003-2015 University of Illinois at Urbana-Champaign.])

 
 dnl Indicate that we require autoconf 2.60 or later.
 AC_PREREQ(2.60)
 
 dnl Indicate that we require autoconf 2.60 or later.
 AC_PREREQ(2.60)


@@ -73,6 +73,19 @@ if test ${srcdir} != "." ; then
   fi
 fi
 
   fi
 fi
 

+dnl Quit if it is an in-source build
+if test ${srcdir} == "." ; then
+  AC_MSG_WARN([**************************************************************************************])
+  AC_MSG_WARN([*                                                                                    *])
+  AC_MSG_WARN([*                                   WARNING                                          *])
+  AC_MSG_WARN([*                                                                                    *])
+  AC_MSG_WARN([*                        In-source builds are deprecated.                            *])
+  AC_MSG_WARN([*                                                                                    *])
+  AC_MSG_WARN([*               Please configure from a separate build directory!                    *])
+  AC_MSG_WARN([*                                                                                    *])
+  AC_MSG_WARN([**************************************************************************************])
+fi
+

 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
 : ${CFLAGS=}
 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
 : ${CFLAGS=}


@@ -105,7 +118,7 @@ if test "$CXX" = "clang++" ; then
 ],
 [
   AC_MSG_RESULT([no])
 ],
 [
   AC_MSG_RESULT([no])

-  AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers.  Rerun with CC=c-compiler CXX=c++-compiler ./configure ...])
+  AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers.  Rerun with CC=c-compiler CXX=c++-compiler LLVM_SRC_DIR/configure ...])

 ])
   AC_LANG_POP([C++])
 fi
 ])
   AC_LANG_POP([C++])
 fi


@@ -267,6 +280,11 @@ AC_CACHE_CHECK([type of operating system we're going to host on],
     llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
     llvm_cv_os_type="DragonFly"
     llvm_cv_platform_type="Unix" ;;
     llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
     llvm_cv_os_type="DragonFly"
     llvm_cv_platform_type="Unix" ;;

+  *-*-bitrig*)
+    llvm_cv_link_all_option="-Wl,--whole-archive"
+    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
+    llvm_cv_os_type="Bitrig"
+    llvm_cv_platform_type="Unix" ;;

   *-*-hpux*)
     llvm_cv_link_all_option="-Wl,--whole-archive"
     llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
   *-*-hpux*)
     llvm_cv_link_all_option="-Wl,--whole-archive"
     llvm_cv_no_link_all_option="-Wl,--no-whole-archive"


@@ -347,6 +365,8 @@ AC_CACHE_CHECK([type of operating system we're going to target],
     llvm_cv_target_os_type="NetBSD" ;;
   *-*-dragonfly*)
     llvm_cv_target_os_type="DragonFly" ;;
     llvm_cv_target_os_type="NetBSD" ;;
   *-*-dragonfly*)
     llvm_cv_target_os_type="DragonFly" ;;

+  *-*-bitrig*)
+    llvm_cv_target_os_type="Bitrig" ;;

   *-*-hpux*)
     llvm_cv_target_os_type="HP-UX" ;;
   *-*-interix*)
   *-*-hpux*)
     llvm_cv_target_os_type="HP-UX" ;;
   *-*-interix*)


@@ -694,8 +714,10 @@ AC_ARG_ENABLE(assertions,AS_HELP_STRING(
   --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
 if test ${enableval} = "yes" ; then
   AC_SUBST(DISABLE_ASSERTIONS,[[]])
   --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
 if test ${enableval} = "yes" ; then
   AC_SUBST(DISABLE_ASSERTIONS,[[]])

+  assertions_enabled="yes"

 else
   AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
 else
   AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])

+  assertions_enabled="no"

 fi
 
 dnl --enable-werror : check whether we want Werror on by default
 fi
 
 dnl --enable-werror : check whether we want Werror on by default


@@ -719,6 +741,28 @@ else
   AC_SUBST(EXPENSIVE_CHECKS,[[no]])
 fi
 
   AC_SUBST(EXPENSIVE_CHECKS,[[no]])
 fi
 

+dnl --enable-abi-breaking-checks : decide whether we should compile in asserts and
+dnl checks that make the build ABI incompatible with an llvm built without these
+dnl checks enabled.
+AC_ARG_ENABLE(abi-breaking-checks,AS_HELP_STRING(
+  --enable-abi-breaking-checks,[Compile with abi-breaking asserts support (default is with-asserts)]),, enableval="with-asserts")
+case "$enableval" in
+  with-asserts)  if test ${assertions_enabled} = "yes" ; then
+                   AC_DEFINE([LLVM_ENABLE_ABI_BREAKING_CHECKS],[1],[Define to enable checks that alter the LLVM C++ ABI])
+                   AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[1])
+                 else
+                   AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[0])
+                fi ;;
+  yes)
+                 AC_DEFINE([LLVM_ENABLE_ABI_BREAKING_CHECKS],[1],[Define to enable checks that alter the LLVM C++ ABI])
+                 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[1])
+                 ;;
+  no)
+                 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[0])
+                 ;;
+  *) AC_MSG_ERROR([Invalid setting for --enable-abi-breaking-checks.  Use "with-asserts", "yes" or "no"])
+esac
+

 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
 AC_ARG_ENABLE(debug-runtime,
    AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
 AC_ARG_ENABLE(debug-runtime,
    AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)


@@ -794,11 +838,139 @@ AC_ARG_ENABLE(doxygen,
                              enableval=default)
 case "$enableval" in
   yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
                              enableval=default)
 case "$enableval" in
   yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;

-  no)  AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
-  default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
+  no|default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;

   *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
 esac
 
   *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
 esac
 

+dnl Allow enablement of doxygen search engine
+AC_ARG_ENABLE(doxygen-search,
+              AS_HELP_STRING([--enable-doxygen-search],
+                             [Enable doxygen search support (default is NO)]),,
+                             enableval=default)
+ENABLE_DOXYGEN_SEARCH="$enableval"
+
+case "$enableval" in
+  yes|no|default) ;;
+  *) AC_MSG_ERROR([Invalid setting for --enable-doxygen-search. Use "yes" or "no"]) ;;
+esac
+
+AC_ARG_ENABLE(doxygen-external-search,
+              AS_HELP_STRING([--enable-doxygen-external-search],
+                             [Enable doxygen exteranl search (default is NO)]),,
+                             enableval=default)
+ENABLE_DOXYGEN_EXTERNAL_SEARCH="$enableval"
+
+case "$enableval" in
+  yes)
+    dnl To match with the CMake behavior, enable doxygen when
+    dnl --enable-doxygen-external-search is enabled.
+    case "$ENABLE_DOXYGEN_SEARCH" in
+      yes|default) ENABLE_DOXYGEN_SEARCH="yes" ;;
+      no) AC_MSG_ERROR([The option --enable-doxygen-external-search requires --enable-doxygen-search]) ;;
+    esac
+    ;;
+  no|default) ;;
+  *) AC_MSG_ERROR([Invalid setting for --enable-doxygen-external-search. Use "yes" or "no"]) ;;
+esac
+
+AC_ARG_WITH(doxygen-search-engine-url,
+            AS_HELP_STRING([--with-doxygen-search-engine-url],
+                           [Specify the external search engine for doxygen]),,)
+WITH_DOXYGEN_SEARCH_ENGINE_URL="$withval"
+
+AC_ARG_WITH(doxygen-search-mappings,
+            AS_HELP_STRING([--with-doxygen-search-mappings],
+                           [Specify the extra search mapping for doxygen]),,)
+WITH_DOXYGEN_SEARCH_MAPPINGS="$withval"
+
+case "$ENABLE_DOXYGEN_SEARCH" in
+  yes)
+    if test "$ENABLE_DOXYGEN" = "0" ; then
+      AC_MSG_ERROR([The option --enable-doxygen-search requires --enable-doxygen.])
+    fi
+
+    AC_SUBST(enable_searchengine,[YES])
+
+    case "$ENABLE_DOXYGEN_EXTERNAL_SEARCH" in
+      yes)
+        AC_SUBST(enable_external_search,[YES])
+        AC_SUBST(enable_server_based_search,[YES])
+        AC_SUBST(searchengine_url,["$WITH_DOXYGEN_SEARCH_ENGINE_URL"])
+        AC_SUBST(extra_search_mappings,["$WITH_DOXYGEN_SEARCH_MAPPINGS"])
+        ;;
+
+      no|default)
+        AC_SUBST(enable_external_search,[NO])
+        AC_SUBST(enable_server_based_search,[NO])
+        AC_SUBST(searchengine_url,[])
+        AC_SUBST(extra_search_mappings,[])
+        ;;
+    esac
+    ;;
+
+  no|default)
+    AC_SUBST(enable_searchengine,[NO])
+    AC_SUBST(searchengine_url,[])
+    AC_SUBST(enable_server_based_search,[NO])
+    AC_SUBST(enable_external_search,[NO])
+    AC_SUBST(extra_search_mappings,[])
+    ;;
+
+  *)
+    AC_MSG_ERROR([Invalid setting for --enable-doxygen-search. Use "yes" or "no"])
+    ;;
+esac
+
+dnl Allow enablement of doxygen generated Qt help files
+AC_ARG_ENABLE(doxygen-qt-help,
+             AS_HELP_STRING([--enable-doxygen-qt-help],
+                            [Build Qt help files (default is NO)]),,
+                            enableval=default)
+case "$enableval" in
+  yes)
+    if test "$ENABLE_DOXYGEN" = "0" ; then
+      AC_MSG_ERROR([The option --enable-doxygen-qt-help requires --enable-doxygen.])
+    fi
+
+    AC_PATH_PROG(QHELPGENERATOR, [qhelpgenerator], [qhelpgenerator])
+
+    dnl Qt help file for llvm doxygen documentation
+    AC_SUBST(llvm_doxygen_generate_qhp,[YES])
+    AC_SUBST(llvm_doxygen_qch_filename,[org.llvm.qch])
+    AC_SUBST(llvm_doxygen_qhp_namespace,[org.llvm])
+    AC_SUBST(llvm_doxygen_qhelpgenerator_path,["$QHELPGENERATOR"])
+    AC_SUBST(llvm_doxygen_qhp_cust_filter_name,["$PACKAGE_STRING"])
+    AC_SUBST(llvm_doxygen_qhp_cust_filter_attrs,["$PACKAGE_NAME,$PACKAGE_VERSION"])
+
+    dnl Qt help file for clang doxygen documentation
+    AC_SUBST(clang_doxygen_generate_qhp,[YES])
+    AC_SUBST(clang_doxygen_qch_filename,[org.llvm.clang.qch])
+    AC_SUBST(clang_doxygen_qhp_namespace,[org.llvm.clang])
+    AC_SUBST(clang_doxygen_qhelpgenerator_path,["$QHELPGENERATOR"])
+    AC_SUBST(clang_doxygen_qhp_cust_filter_name,["Clang $PACKAGE_VERSION"])
+    AC_SUBST(clang_doxygen_qhp_cust_filter_attrs,["Clang,$PACKAGE_VERSION"])
+    ;;
+
+  no|default)
+    AC_SUBST(llvm_doxygen_generate_qhp,[NO])
+    AC_SUBST(llvm_doxygen_qch_filename,[])
+    AC_SUBST(llvm_doxygen_qhp_namespace,[])
+    AC_SUBST(llvm_doxygen_qhelpgenerator_path,[])
+    AC_SUBST(llvm_doxygen_qhp_cust_filter_name,[])
+    AC_SUBST(llvm_doxygen_qhp_cust_filter_attrs,[])
+
+    AC_SUBST(clang_doxygen_generate_qhp,[NO])
+    AC_SUBST(clang_doxygen_qch_filename,[])
+    AC_SUBST(clang_doxygen_qhp_namespace,[])
+    AC_SUBST(clang_doxygen_qhelpgenerator_path,[])
+    AC_SUBST(clang_doxygen_qhp_cust_filter_name,["Clang $PACKAGE_VERSION"])
+    AC_SUBST(clang_doxygen_qhp_cust_filter_attrs,["Clang,$PACKAGE_VERSION"])
+    ;;
+
+  *)
+    AC_MSG_ERROR([Invalid setting for --enable-doxygen-qt-help. Use "yes" or "no"]) ;;
+esac
+

 dnl Allow disablement of threads
 AC_ARG_ENABLE(threads,
               AS_HELP_STRING([--enable-threads],
 dnl Allow disablement of threads
 AC_ARG_ENABLE(threads,
               AS_HELP_STRING([--enable-threads],


@@ -1165,6 +1337,13 @@ AC_ARG_WITH(default-sysroot,
 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
                    [Default <path> to all compiler invocations for --sysroot=<path>.])
 
 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
                    [Default <path> to all compiler invocations for --sysroot=<path>.])
 

+AC_ARG_WITH(clang-default-openmp-runtime,
+  AS_HELP_STRING([--with-clang-default-openmp-runtime],
+    [The default OpenMP runtime for Clang.]),,
+    withval="")
+AC_DEFINE_UNQUOTED(CLANG_DEFAULT_OPENMP_RUNTIME,"$withval",
+                   [Default OpenMP runtime used by -fopenmp.])
+

 dnl Allow linking of LLVM with GPLv3 binutils code.
 AC_ARG_WITH(binutils-include,
   AS_HELP_STRING([--with-binutils-include],
 dnl Allow linking of LLVM with GPLv3 binutils code.
 AC_ARG_WITH(binutils-include,
   AS_HELP_STRING([--with-binutils-include],


@@ -1692,9 +1871,7 @@ dnl=== SECTION 8: Check for specific functions needed
 dnl===
 dnl===-----------------------------------------------------------------------===
 
 dnl===
 dnl===-----------------------------------------------------------------------===
 

-AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
-AC_CHECK_FUNCS([powf fmodf strtof round ])
-AC_CHECK_FUNCS([log log2 log10 exp exp2])
+AC_CHECK_FUNCS([backtrace getcwd ])

 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])


@@ -1758,11 +1935,6 @@ if test "$llvm_cv_os_type" = "MingW" ; then
   AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
 fi
 
   AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
 fi
 

-dnl Check for variations in the Standard C++ library and STL. These macros are
-dnl provided by LLVM in the autoconf/m4 directory.
-AC_FUNC_ISNAN
-AC_FUNC_ISINF
-

 dnl Check for mmap support.We also need to know if /dev/zero is required to
 dnl be opened for allocating RWX memory.
 dnl Make sure we aren't attempting to configure for an unknown system
 dnl Check for mmap support.We also need to know if /dev/zero is required to
 dnl be opened for allocating RWX memory.
 dnl Make sure we aren't attempting to configure for an unknown system