dnl Initialize autoconf and define the package name, version number and
dnl address for reporting bugs.
AC_INIT([LLVM],[3.5svn],[http://llvm.org/bugs/])
-AC_DEFINE([LLVM_VERSION_MAJOR], [3], [Major version of the LLVM API])
-AC_DEFINE([LLVM_VERSION_MINOR], [5], [Minor version of the LLVM API])
+LLVM_DEFINE_SUBST([LLVM_VERSION_MAJOR], [3], [Major version of the LLVM API])
+LLVM_DEFINE_SUBST([LLVM_VERSION_MINOR], [5], [Minor version of the LLVM API])
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_LANG_POP([C++])
AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
-dnl Check both GCC and Clang for sufficiently modern versions. These checks can
-dnl be bypassed by passing a flag if necessary on a platform.
-AC_ARG_ENABLE(compiler-version-checks,
- AS_HELP_STRING([--enable-compiler-version-checks],
- [Check the version of the host compiler (default is YES)]),,
- enableval=default)
-case "$enableval" in
- no)
- ;;
- yes|default)
- AC_LANG_PUSH([C++])
- case "$llvm_cv_cxx_compiler" in
- clang)
- AC_MSG_CHECKING([whether Clang is new enough])
- AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
-#if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
-#error This version of Clang is too old to build LLVM
-#endif
-]])],
- [AC_MSG_RESULT([yes])],
- [AC_MSG_RESULT([no])
- AC_MSG_ERROR([
-The selected Clang compiler is not new enough to build LLVM. Please upgrade to
-Clang 3.1. You may pass --disable-compiler-version-checks to configure to
-bypass these sanity checks.])])
-
- dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
- dnl are sometimes deeply confusing though. Here we test for an obvious
- dnl incomplete feature in 4.6's standard library that was completed in
- dnl 4.7's.
- AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
- llvm_cv_old_cxxflags="$CXXFLAGS"
- CXXFLAGS="$CXXFLAGS -std=c++0x"
- AC_LINK_IFELSE([AC_LANG_SOURCE([[
-#include <atomic>
-std::atomic<float> x(0.0f);
-int main() { return (float)x; }
-]])],
- [AC_MSG_RESULT([yes])],
- [AC_MSG_RESULT([no])
- AC_MSG_ERROR([
-We detected a missing feature in the standard C++ library that was known to be
-missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
-C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
-than 4.7. You will need to update your system and ensure Clang uses the newer
-standard library.
-
-If this error is incorrect or you need to force things to work, you may pass
-'--disable-compiler-version-checks' to configure to bypass this test.])])
- CXXFLAGS="$llvm_cv_old_cxxflags"
- ;;
- gcc)
- AC_MSG_CHECKING([whether GCC is new enough])
- AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
-#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
-#error This version of GCC is too old to build LLVM
-#endif
-]])],
- [AC_MSG_RESULT([yes])],
- [AC_MSG_RESULT([no])
- AC_MSG_ERROR([
-The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
-to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
-bypass these sanity checks.])])
- ;;
- unknown)
- ;;
- esac
- AC_LANG_POP([C++])
- ;;
- *)
- AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
- ;;
-esac
-
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 script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
dnl Define a substitution, ARCH, for the target architecture
AC_SUBST(ARCH,$llvm_cv_target_arch)
+AC_SUBST(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCH)
dnl Determine what our host architecture.
dnl This will allow MCJIT regress tests runs only for supported
*) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
esac
+dnl Check both GCC and Clang for sufficiently modern versions. These checks can
+dnl be bypassed by passing a flag if necessary on a platform. We have to do
+dnl these checks here so that we have the configuration of the standard C++
+dnl library finished.
+AC_ARG_ENABLE(compiler-version-checks,
+ AS_HELP_STRING([--enable-compiler-version-checks],
+ [Check the version of the host compiler (default is YES)]),,
+ enableval=default)
+case "$enableval" in
+ no)
+ ;;
+ yes|default)
+ AC_LANG_PUSH([C++])
+ case "$llvm_cv_cxx_compiler" in
+ clang)
+ AC_MSG_CHECKING([whether Clang is new enough])
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+#if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
+#error This version of Clang is too old to build LLVM
+#endif
+]])],
+ [AC_MSG_RESULT([yes])],
+ [AC_MSG_RESULT([no])
+ AC_MSG_ERROR([
+The selected Clang compiler is not new enough to build LLVM. Please upgrade to
+Clang 3.1. You may pass --disable-compiler-version-checks to configure to
+bypass these sanity checks.])])
+
+ dnl Note that libstdc++4.6 is known broken for C++11 builds. The errors
+ dnl are sometimes deeply confusing though. Here we test for an obvious
+ dnl incomplete feature in 4.6's standard library that was completed in
+ dnl 4.7's. We also have to disable this test if 'ENABLE_LIBCPP' is set
+ dnl because the enable flags don't actually fix CXXFLAGS, they rely on
+ dnl that happening in the Makefile.
+ if test "$ENABLE_LIBCPP" -eq 0 ; then
+ AC_MSG_CHECKING([whether Clang will select a modern C++ standard library])
+ llvm_cv_old_cxxflags="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS -std=c++0x"
+ AC_LINK_IFELSE([AC_LANG_SOURCE([[
+#include <atomic>
+std::atomic<float> x(0.0f);
+int main() { return (float)x; }
+]])],
+ [AC_MSG_RESULT([yes])],
+ [AC_MSG_RESULT([no])
+ AC_MSG_ERROR([
+We detected a missing feature in the standard C++ library that was known to be
+missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
+C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
+than 4.7. You will need to update your system and ensure Clang uses the newer
+standard library.
+
+If this error is incorrect or you need to force things to work, you may pass
+'--disable-compiler-version-checks' to configure to bypass this test.])])
+ CXXFLAGS="$llvm_cv_old_cxxflags"
+ fi
+ ;;
+ gcc)
+ AC_MSG_CHECKING([whether GCC is new enough])
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
+#error This version of GCC is too old to build LLVM
+#endif
+]])],
+ [AC_MSG_RESULT([yes])],
+ [AC_MSG_RESULT([no])
+ AC_MSG_ERROR([
+The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
+to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
+bypass these sanity checks.])])
+ ;;
+ unknown)
+ ;;
+ esac
+ AC_LANG_POP([C++])
+ ;;
+ *)
+ AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
+ ;;
+esac
+
dnl --enable-cxx11 : check whether or not to use -std=c++11 on the command line
AC_ARG_ENABLE(cxx11,
AS_HELP_STRING([--enable-cxx11],
- [Use c++11 if available (default is NO)]),,
+ [Use c++11 if available (default is YES)]),,
enableval=default)
case "$enableval" in
yes) AC_SUBST(ENABLE_CXX11,[1]) ;;
no) AC_SUBST(ENABLE_CXX11,[0]) ;;
- default) AC_SUBST(ENABLE_CXX11,[0]);;
+ default) AC_SUBST(ENABLE_CXX11,[1]);;
*) AC_MSG_ERROR([Invalid setting for --enable-cxx11. Use "yes" or "no"]) ;;
esac
esac
fi
+TARGETS_WITH_JIT="AArch64 ARM Mips PowerPC SystemZ X86"
+AC_SUBST(TARGETS_WITH_JIT,$TARGETS_WITH_JIT)
+
dnl Allow enablement of building and installing docs
AC_ARG_ENABLE(docs,
AS_HELP_STRING([--enable-docs],
[Define to enable crash handling overrides])
fi
+dnl List all possible targets
+ALL_TARGETS="X86 Sparc PowerPC AArch64 ARM Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600"
+AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
+
dnl Allow specific targets to be specified for building (or not)
TARGETS_TO_BUILD=""
AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
enableval=host
fi
case "$enableval" in
- all) TARGETS_TO_BUILD="X86 Sparc PowerPC AArch64 ARM Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600" ;;
+ all) TARGETS_TO_BUILD="$ALL_TARGETS" ;;
*)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
case "$a_target" in
x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
*) AC_MSG_ERROR([Invalid setting for --enable-terminfo. Use "yes" or "no"]) ;;
esac],
llvm_cv_enable_terminfo="yes")
+case "$llvm_cv_enable_terminfo" in
+ yes) AC_SUBST(ENABLE_TERMINFO,[1]) ;;
+ no) AC_SUBST(ENABLE_TERMINFO,[0]) ;;
+esac
+
+dnl --enable-libedit: check whether the user wants to turn off libedit.
+AC_ARG_ENABLE(libedit,AS_HELP_STRING(
+ [--enable-libedit],
+ [Use libedit if available (default is YES)]),
+ [case "$enableval" in
+ yes) llvm_cv_enable_libedit="yes" ;;
+ no) llvm_cv_enable_libedit="no" ;;
+ *) AC_MSG_ERROR([Invalid setting for --enable-libedit. Use "yes" or "no"]) ;;
+ esac],
+ llvm_cv_enable_libedit="yes")
dnl --enable-libffi : check whether the user wants to turn off libffi:
AC_ARG_ENABLE(libffi,AS_HELP_STRING(
dnl===
dnl===-----------------------------------------------------------------------===
-AC_PROG_NM
-AC_SUBST(NM)
-
dnl Check for the tools that the makefiles require
AC_CHECK_GNU_MAKE
AC_PROG_LN_S
+AC_PATH_PROG(NM, [nm], [nm])
AC_PATH_PROG(CMP, [cmp], [cmp])
AC_PATH_PROG(CP, [cp], [cp])
AC_PATH_PROG(DATE, [date], [date])
dnl Determine whether the linker supports the --version-script option.
AC_LINK_VERSION_SCRIPT
-dnl Check for libtool and the library that has dlopen function (which must come
-dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
-dnl libtool).
-AC_LIBTOOL_DLOPEN
-AC_LIB_LTDL
+AC_CHECK_HEADERS([errno.h])
+
+case "$llvm_cv_os_type" in
+ Cygwin|MingW|Win32) llvm_shlib_ext=.dll ;;
+ Darwin) llvm_shlib_ext=.dylib ;;
+ *) llvm_shlib_ext=.so ;;
+esac
+
+AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$llvm_shlib_ext"], [The shared library extension])
AC_MSG_CHECKING([tool compatibility])
fi
dnl dlopen() is required for plugin support.
-AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
+AC_SEARCH_LIBS(dlopen,dl,LLVM_DEFINE_SUBST([HAVE_DLOPEN],[1],
[Define if dlopen() is available on this platform.]),
AC_MSG_WARN([dlopen() not found - disabling plugin support]))
if test "$llvm_cv_enable_terminfo" = "yes" ; then
dnl We need the has_color functionality in curses for it to be useful.
AC_SEARCH_LIBS(setupterm,tinfo terminfo curses ncurses ncursesw,
- AC_DEFINE([HAVE_TERMINFO],[1],
- [Define if the setupterm() function is supported this platform.]))
+ LLVM_DEFINE_SUBST([HAVE_TERMINFO],[1],
+ [Define if the setupterm() function is supported this platform.]))
+fi
+
+dnl The libedit library is optional; used by lib/LineEditor
+if test "$llvm_cv_enable_libedit" = "yes" ; then
+ AC_SEARCH_LIBS(el_init,edit,
+ AC_DEFINE([HAVE_LIBEDIT],[1],
+ [Define if libedit is available on this platform.]))
fi
dnl libffi is optional; used to call external functions from the interpreter
AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
-AC_CHECK_FUNCS([strerror strerror_r setenv arc4random ])
+AC_CHECK_FUNCS([strerror strerror_r setenv ])
AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
AC_CHECK_FUNCS([futimes futimens])
AC_C_PRINTF_A
AC_FUNC_RAND48
+dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
+AC_CHECK_DECLS([arc4random])
+
dnl Check the declaration "Secure API" on Windows environments.
AC_CHECK_DECLS([strerror_s])
dnl Propagate the shared library extension that the libltdl checks did to
dnl the Makefiles so we can use it there too
-AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
-
-dnl Propagate the run-time library path variable that the libltdl
-dnl checks found to the Makefiles so we can use it there too
-AC_SUBST(SHLIBPATH_VAR,$libltdl_cv_shlibpath_var)
+AC_SUBST(SHLIBEXT,$llvm_shlib_ext)
dnl Translate the various configuration directories and other basic
dnl information into substitutions that will end up in Makefile.config.in
projects / oota-llvm.git / blobdiff