diff options
| -rw-r--r-- | autoconf/configure.ac | 69 | ||||
| -rwxr-xr-x | configure | 333 |
2 files changed, 401 insertions, 1 deletions
diff --git a/autoconf/configure.ac b/autoconf/configure.ac index 435188e275..89fd237de5 100644 --- a/autoconf/configure.ac +++ b/autoconf/configure.ac @@ -96,6 +96,75 @@ if test "$CXX" = "clang++" ; then AC_LANG_POP([C++]) fi +dnl Set up variables that track whether the host compiler is GCC or Clang where +dnl we can effectively sanity check them. We don't try to sanity check all the +dnl other possible compilers. +AC_MSG_CHECKING([whether GCC or Clang is our host compiler]) +AC_LANG_PUSH([C++]) +llvm_cv_cxx_compiler=unknown +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! __clang__ + #error + #endif + ]])], + llvm_cv_cxx_compiler=clang, + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! __GNUC__ + #error + #endif + ]])], + llvm_cv_cxx_compiler=gcc, [])]) +AC_LANG_POP([C++]) +AC_MSG_RESULT([${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_PROGRAM([[ +#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.])]) + ;; + gcc) + AC_MSG_CHECKING([whether GCC is new enough]) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#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. @@ -1396,6 +1396,9 @@ if test -n "$ac_init_help"; then Optional Features: --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no) --enable-FEATURE[=ARG] include FEATURE [ARG=yes] + --enable-compiler-version-checks + Check the version of the host compiler (default is + YES) --enable-polly Use polly if available (default is YES) --enable-libcpp Use libc++ if available (default is NO) --enable-cxx11 Use c++11 if available (default is NO) @@ -3575,6 +3578,334 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu fi +{ echo "$as_me:$LINENO: checking whether GCC or Clang is our host compiler" >&5 +echo $ECHO_N "checking whether GCC or Clang is our host compiler... $ECHO_C" >&6; } +ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + +llvm_cv_cxx_compiler=unknown +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#if ! __clang__ + #error + #endif + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err' + { (case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + llvm_cv_cxx_compiler=clang +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#if ! __GNUC__ + #error + #endif + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err' + { (case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + llvm_cv_cxx_compiler=gcc +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_ext=c +ac_cpp='$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: result: ${llvm_cv_cxx_compiler}" >&5 +echo "${ECHO_T}${llvm_cv_cxx_compiler}" >&6; } + +# Check whether --enable-compiler-version-checks was given. +if test "${enable_compiler_version_checks+set}" = set; then + enableval=$enable_compiler_version_checks; +else + enableval=default +fi + +case "$enableval" in + no) + ;; + yes|default) + ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + + case "$llvm_cv_cxx_compiler" in + clang) + { echo "$as_me:$LINENO: checking whether Clang is new enough" >&5 +echo $ECHO_N "checking whether Clang is new enough... $ECHO_C" >&6; } + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +#if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 1) +#error This version of Clang is too old to build LLVM +#endif + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err' + { (case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + { echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6; } +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } + { { echo "$as_me:$LINENO: error: +The selected Clang compiler is not new enough to build LLVM. Please upgrade to +Clang 3.1. You may pass --disable-compiler-version-checks to configure to +bypass these sanity checks." >&5 +echo "$as_me: 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." >&2;} + { (exit 1); exit 1; }; } +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ;; + gcc) + { echo "$as_me:$LINENO: checking whether GCC is new enough" >&5 +echo $ECHO_N "checking whether GCC is new enough... $ECHO_C" >&6; } + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7) +#error This version of GCC is too old to build LLVM +#endif + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err' + { (case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + { echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6; } +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } + { { echo "$as_me:$LINENO: error: +The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade +to GCC 4.7. You may pass --disable-compiler-version-checks to configure to +bypass these sanity checks." >&5 +echo "$as_me: 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." >&2;} + { (exit 1); exit 1; }; } +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ;; + unknown) + ;; + esac + 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 |