mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-06-26 10:29:57 +00:00
Add checks to configure for sufficiently modern host compilers. This
requires Clang 3.1 or GCC 4.7. If the compiler isn't Clang or GCC, we don't try to do any sanity checking, but this give us at least a reasonable baseline of modern compilers. Also, I'm not claiming that this is the best way to do compiler version tests. I'm happy for anyone to suggest better ways of doing this test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199182 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth
parent
3c733ea064
commit
7ba06ede59
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@ -96,6 +96,75 @@ if test "$CXX" = "clang++" ; then
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AC_LANG_POP([C++])
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fi
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dnl Set up variables that track whether the host compiler is GCC or Clang where
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dnl we can effectively sanity check them. We don't try to sanity check all the
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dnl other possible compilers.
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AC_MSG_CHECKING([whether GCC or Clang is our host compiler])
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AC_LANG_PUSH([C++])
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llvm_cv_cxx_compiler=unknown
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! __clang__
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#error
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#endif
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]])],
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llvm_cv_cxx_compiler=clang,
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[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! __GNUC__
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#error
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#endif
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]])],
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llvm_cv_cxx_compiler=gcc, [])])
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AC_LANG_POP([C++])
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AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
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dnl Check both GCC and Clang for sufficiently modern versions. These checks can
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dnl be bypassed by passing a flag if necessary on a platform.
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AC_ARG_ENABLE(compiler-version-checks,
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AS_HELP_STRING([--enable-compiler-version-checks],
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[Check the version of the host compiler (default is YES)]),,
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enableval=default)
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case "$enableval" in
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no)
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;;
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yes|default)
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AC_LANG_PUSH([C++])
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case "$llvm_cv_cxx_compiler" in
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clang)
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AC_MSG_CHECKING([whether Clang is new enough])
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
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#error This version of Clang is too old to build LLVM
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#endif
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]])],
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[AC_MSG_RESULT([yes])],
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[AC_MSG_RESULT([no])
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AC_MSG_ERROR([
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The selected Clang compiler is not new enough to build LLVM. Please upgrade to
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Clang 3.1. You may pass --disable-compiler-version-checks to configure to
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bypass these sanity checks.])])
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;;
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gcc)
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AC_MSG_CHECKING([whether GCC is new enough])
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
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#error This version of GCC is too old to build LLVM
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#endif
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]])],
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[AC_MSG_RESULT([yes])],
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[AC_MSG_RESULT([no])
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AC_MSG_ERROR([
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The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
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to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
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bypass these sanity checks.])])
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;;
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unknown)
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;;
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esac
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AC_LANG_POP([C++])
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;;
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*)
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AC_MSG_ERROR([Invalid setting for --enable-compiler-version-checks. Use "yes" or "no"])
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;;
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esac
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dnl Configure all of the projects present in our source tree. While we could
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dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
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dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
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333
configure
vendored
333
configure
vendored
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@ -1396,6 +1396,9 @@ if test -n "$ac_init_help"; then
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Optional Features:
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--disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
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--enable-FEATURE[=ARG] include FEATURE [ARG=yes]
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--enable-compiler-version-checks
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Check the version of the host compiler (default is
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YES)
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--enable-polly Use polly if available (default is YES)
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--enable-libcpp Use libc++ if available (default is NO)
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--enable-cxx11 Use c++11 if available (default is NO)
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@ -3575,6 +3578,334 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
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fi
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{ echo "$as_me:$LINENO: checking whether GCC or Clang is our host compiler" >&5
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echo $ECHO_N "checking whether GCC or Clang is our host compiler... $ECHO_C" >&6; }
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ac_ext=cpp
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ac_cpp='$CXXCPP $CPPFLAGS'
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ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
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llvm_cv_cxx_compiler=unknown
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#if ! __clang__
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#error
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#endif
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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rm -f conftest.$ac_objext
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if { (ac_try="$ac_compile"
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case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_compile") 2>conftest.er1
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ac_status=$?
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grep -v '^ *+' conftest.er1 >conftest.err
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rm -f conftest.er1
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cat conftest.err >&5
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } &&
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{ ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err'
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{ (case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_try") 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } &&
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{ ac_try='test -s conftest.$ac_objext'
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{ (case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_try") 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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llvm_cv_cxx_compiler=clang
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else
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#if ! __GNUC__
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#error
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#endif
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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rm -f conftest.$ac_objext
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if { (ac_try="$ac_compile"
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case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_compile") 2>conftest.er1
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ac_status=$?
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grep -v '^ *+' conftest.er1 >conftest.err
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rm -f conftest.er1
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cat conftest.err >&5
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } &&
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{ ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err'
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{ (case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_try") 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } &&
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{ ac_try='test -s conftest.$ac_objext'
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{ (case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_try") 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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llvm_cv_cxx_compiler=gcc
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else
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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ac_ext=c
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ac_cpp='$CPP $CPPFLAGS'
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ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_c_compiler_gnu
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{ echo "$as_me:$LINENO: result: ${llvm_cv_cxx_compiler}" >&5
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echo "${ECHO_T}${llvm_cv_cxx_compiler}" >&6; }
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# Check whether --enable-compiler-version-checks was given.
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if test "${enable_compiler_version_checks+set}" = set; then
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enableval=$enable_compiler_version_checks;
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else
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enableval=default
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fi
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case "$enableval" in
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no)
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;;
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yes|default)
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ac_ext=cpp
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ac_cpp='$CXXCPP $CPPFLAGS'
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ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
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case "$llvm_cv_cxx_compiler" in
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clang)
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{ echo "$as_me:$LINENO: checking whether Clang is new enough" >&5
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echo $ECHO_N "checking whether Clang is new enough... $ECHO_C" >&6; }
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1)
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#error This version of Clang is too old to build LLVM
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#endif
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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rm -f conftest.$ac_objext
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if { (ac_try="$ac_compile"
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case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_compile") 2>conftest.er1
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ac_status=$?
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grep -v '^ *+' conftest.er1 >conftest.err
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rm -f conftest.er1
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cat conftest.err >&5
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } &&
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{ ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err'
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{ (case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_try") 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } &&
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{ ac_try='test -s conftest.$ac_objext'
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{ (case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_try") 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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{ echo "$as_me:$LINENO: result: yes" >&5
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echo "${ECHO_T}yes" >&6; }
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else
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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{ echo "$as_me:$LINENO: result: no" >&5
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echo "${ECHO_T}no" >&6; }
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{ { echo "$as_me:$LINENO: error:
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The selected Clang compiler is not new enough to build LLVM. Please upgrade to
|
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Clang 3.1. You may pass --disable-compiler-version-checks to configure to
|
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bypass these sanity checks." >&5
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echo "$as_me: error:
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The selected Clang compiler is not new enough to build LLVM. Please upgrade to
|
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Clang 3.1. You may pass --disable-compiler-version-checks to configure to
|
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bypass these sanity checks." >&2;}
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{ (exit 1); exit 1; }; }
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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;;
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gcc)
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{ echo "$as_me:$LINENO: checking whether GCC is new enough" >&5
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echo $ECHO_N "checking whether GCC is new enough... $ECHO_C" >&6; }
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
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#error This version of GCC is too old to build LLVM
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#endif
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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rm -f conftest.$ac_objext
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if { (ac_try="$ac_compile"
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case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_compile") 2>conftest.er1
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ac_status=$?
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grep -v '^ *+' conftest.er1 >conftest.err
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rm -f conftest.er1
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cat conftest.err >&5
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } &&
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{ ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err'
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{ (case "(($ac_try" in
|
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_try") 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } &&
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{ ac_try='test -s conftest.$ac_objext'
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{ (case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_try") 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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{ echo "$as_me:$LINENO: result: yes" >&5
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echo "${ECHO_T}yes" >&6; }
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else
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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{ echo "$as_me:$LINENO: result: no" >&5
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echo "${ECHO_T}no" >&6; }
|
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{ { echo "$as_me:$LINENO: error:
|
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The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
|
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to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
|
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bypass these sanity checks." >&5
|
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echo "$as_me: error:
|
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The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade
|
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to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
|
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bypass these sanity checks." >&2;}
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{ (exit 1); exit 1; }; }
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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;;
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unknown)
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;;
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esac
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ac_ext=c
|
||||
ac_cpp='$CPP $CPPFLAGS'
|
||||
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
|
||||
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
|
||||
ac_compiler_gnu=$ac_cv_c_compiler_gnu
|
||||
|
||||
;;
|
||||
*)
|
||||
{ { echo "$as_me:$LINENO: error: Invalid setting for --enable-compiler-version-checks. Use \"yes\" or \"no\"" >&5
|
||||
echo "$as_me: error: Invalid setting for --enable-compiler-version-checks. Use \"yes\" or \"no\"" >&2;}
|
||||
{ (exit 1); exit 1; }; }
|
||||
;;
|
||||
esac
|
||||
|
||||
|
||||
|
||||
if test -d ${srcdir}/projects/test-suite ; then
|
||||
|
|
@ -10278,7 +10609,7 @@ else
|
|||
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
|
||||
lt_status=$lt_dlunknown
|
||||
cat > conftest.$ac_ext <<EOF
|
||||
#line 10281 "configure"
|
||||
#line 10612 "configure"
|
||||
#include "confdefs.h"
|
||||
|
||||
#if HAVE_DLFCN_H
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user