diff --git a/ChangeLog b/ChangeLog index 114208652..31df4798a 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,7 @@ +2008-06-17 Ralf Wildenhues + + * configure: Regenerate. + 2008-06-16 Ralf Wildenhues * configure.ac: Set TOPLEVEL_CONFIGURE_ARGUMENTS early, when diff --git a/config/ChangeLog b/config/ChangeLog index 55d74f668..daa5c5f94 100644 --- a/config/ChangeLog +++ b/config/ChangeLog @@ -1,3 +1,15 @@ +2008-06-17 Ralf Wildenhues + + * override.m4: Use m4_version_prereq throughout. + (_AC_ARG_VAR_VALIDATE, AC_MSG_FAILURE): Backport from git + Autoconf: output pwd along with fatal errors, so the right + config.log file is hinted at more prominently. + (PARSE_ARGS): Push setting of ac_pwd in this diversion. + (_GCC_AUTOCONF_VERSION): New, define to 2.59 if not defined. + (_GCC_AUTOCONF_VERSION_CHECK): New macro, require use of Autoconf + version _GCC_AUTOCONF_VERSION throughout the tree. + (m4_wrap): New override, fix for Posix semantics of m4wrap. + 2008-06-08 Joseph Myers PR tree-optimization/36218 diff --git a/config/override.m4 b/config/override.m4 index 592f64139..9bb149620 100644 --- a/config/override.m4 +++ b/config/override.m4 @@ -2,10 +2,15 @@ dnl Fix Autoconf-2.59 bugs: by overriding broken internal dnl Autoconf macros with backports of the 2.60+ fix. dnl - AC_CONFIG_SUBDIRS whitespace mangling, dnl - more lenient precious variable checks +dnl - better configure error message +dnl - reliance on non-Posix m4wrap (M4 1.6 or newer implement FIFO) dnl -dnl This file should be a no-op for Autoconf versions != 2.59. -dnl It can be removed once the complete tree has moved to a -dnl newer Autoconf version. +dnl The override bits of this file should be a no-op for the newest +dnl Autoconf version, which means they can be removed once the complete +dnl tree has moved to a new enough Autoconf version. +dnl +dnl The _GCC_AUTOCONF_VERSION_TEST ensures that exactly the desired +dnl Autoconf version is used. It should be kept for consistency. dnl m4_PACKAGE_VERSION is an undocumented Autoconf macro. dnl We use it because this fix is intended for 2.59 only. @@ -22,7 +27,36 @@ m4_copy([AC_PREREQ], [_AC_PREREQ]) AC_DEFUN([AC_PREREQ], [frob]) m4_copy([_AC_PREREQ], [AC_PREREQ]) -ifelse(m4_PACKAGE_VERSION, [2.59], [ + +dnl Ensure exactly this Autoconf version is used +m4_ifndef([_GCC_AUTOCONF_VERSION], + [m4_define([_GCC_AUTOCONF_VERSION], [2.59])]) + +dnl Test for the exact version when AC_INIT is expanded. +dnl This allows to update the tree in steps (for testing) +dnl by putting +dnl m4_define([_GCC_AUTOCONF_VERSION], [X.Y]) +dnl in configure.ac before AC_INIT, +dnl without rewriting this file. +dnl Or for updating the whole tree at once with the definition above. +AC_DEFUN([_GCC_AUTOCONF_VERSION_CHECK], +[m4_if(m4_defn([_GCC_AUTOCONF_VERSION]), + m4_defn([m4_PACKAGE_VERSION]), [], + [m4_fatal([Please use exactly Autoconf ]_GCC_AUTOCONF_VERSION[ instead of ]m4_defn([m4_PACKAGE_VERSION])[.])]) +]) +m4_define([AC_INIT], m4_defn([AC_INIT])[ +_GCC_AUTOCONF_VERSION_CHECK +]) + +m4_version_prereq([2.60],, [ +dnl We use $ac_pwd in some of the overrides below; ensure its definition +m4_divert_push([PARSE_ARGS])dnl +ac_pwd=`pwd` +m4_divert_pop([PARSE_ARGS])dnl +]) + + +m4_version_prereq([2.60],, [ # _AC_OUTPUT_SUBDIRS # ------------------ @@ -128,13 +162,15 @@ fi ])# _AC_OUTPUT_SUBDIRS ]) -ifelse(m4_PACKAGE_VERSION, [2.62],, [ +m4_version_prereq([2.63],, [ # _AC_ARG_VAR_VALIDATE # -------------------- # The code is the same as autoconf 2.59, but with a more lenient check -# on precious variables that has been added in autoconf 2.62. +# on precious variables and an output of pwd that have been added in +# autoconf 2.62. m4_define([_AC_ARG_VAR_VALIDATE], +[m4_divert_text([INIT_PREPARE], [# Check that the precious variables saved in the cache have kept the same # value. ac_cache_corrupted=false @@ -184,8 +220,32 @@ dnl it's sensitive. Putting any kind of quote in it causes syntax errors. fi done if $ac_cache_corrupted; then + AS_MESSAGE([error: in `$ac_pwd':], 2) AS_MESSAGE([error: changes in the environment can compromise the build], 2) AS_ERROR([run `make distclean' and/or `rm $cache_file' and start over]) -fi +fi])dnl ])# _AC_ARG_VAR_VALIDATE -])]) +]) + +m4_version_prereq([2.63],, [ + +# AC_MSG_FAILURE(ERROR, [EXIT-STATUS = 1]) +# ---------------------------------------- +# This is the same code as in 2.59 and 2.61, except it also outputs pwd. +m4_define([AC_MSG_FAILURE], +[{ AS_MESSAGE([error: in `$ac_pwd':], 2) +AC_MSG_ERROR([$1 +See `config.log' for more details.], [$2]); }]) +]) +]) + +m4_version_prereq([2.60],, [ +dnl M4 1.6 and newer implement m4wrap using FIFO semantics, as required +dnl by Posix; earlier versions used LIFO semantics. Unfortunately, +dnl Autoconf versions before 2.60 require those LIFO semantics, so +dnl make sure to give it to them. +m4_define([m4_wrap], [m4_ifdef([_$0_text], + [m4_define([_$0_text], [$1]m4_defn([_$0_text]))], + [m4_define([_$0_text], [$1])m4_builtin([m4wrap], + [m4_default(m4_defn([_$0_text])m4_undefine([_$0_text]))])])]) +]) diff --git a/configure b/configure index 74ceeadc9..1c1900789 100755 --- a/configure +++ b/configure @@ -274,6 +274,7 @@ PACKAGE_BUGREPORT= ac_unique_file="move-if-change" ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS TOPLEVEL_CONFIGURE_ARGUMENTS build build_cpu build_vendor build_os build_noncanonical host_noncanonical target_noncanonical host host_cpu host_vendor host_os target target_cpu target_vendor target_os INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA LN LN_S build_libsubdir build_subdir host_subdir target_subdir CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CXX CXXFLAGS ac_ct_CXX GNATBIND ac_ct_GNATBIND GNATMAKE ac_ct_GNATMAKE do_compare gmplibs gmpinc stage1_languages SYSROOT_CFLAGS_FOR_TARGET DEBUG_PREFIX_CFLAGS_FOR_TARGET CFLAGS_FOR_TARGET CXXFLAGS_FOR_TARGET RPATH_ENVVAR tooldir build_tooldir CONFIGURE_GDB_TK GDB_TK INSTALL_GDB_TK build_configargs build_configdirs host_configargs configdirs target_configargs AR_FOR_BUILD AS_FOR_BUILD CC_FOR_BUILD CFLAGS_FOR_BUILD CXXFLAGS_FOR_BUILD CXX_FOR_BUILD DLLTOOL_FOR_BUILD GCJ_FOR_BUILD GFORTRAN_FOR_BUILD LDFLAGS_FOR_BUILD LD_FOR_BUILD NM_FOR_BUILD RANLIB_FOR_BUILD WINDMC_FOR_BUILD WINDRES_FOR_BUILD config_shell YACC BISON M4 LEX FLEX MAKEINFO EXPECT RUNTEST AR AS DLLTOOL LD LIPO NM RANLIB STRIP WINDRES WINDMC OBJCOPY OBJDUMP CC_FOR_TARGET CXX_FOR_TARGET GCC_FOR_TARGET GCJ_FOR_TARGET GFORTRAN_FOR_TARGET AR_FOR_TARGET AS_FOR_TARGET DLLTOOL_FOR_TARGET LD_FOR_TARGET LIPO_FOR_TARGET NM_FOR_TARGET OBJDUMP_FOR_TARGET RANLIB_FOR_TARGET STRIP_FOR_TARGET WINDRES_FOR_TARGET WINDMC_FOR_TARGET RAW_CXX_FOR_TARGET FLAGS_FOR_TARGET COMPILER_AS_FOR_TARGET COMPILER_LD_FOR_TARGET COMPILER_NM_FOR_TARGET MAINTAINER_MODE_TRUE MAINTAINER_MODE_FALSE MAINT stage1_cflags stage1_checking stage2_werror_flag datarootdir docdir pdfdir htmldir LIBOBJS LTLIBOBJS' ac_subst_files='serialization_dependencies host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag' +ac_pwd=`pwd` # Initialize some variables set by options. ac_init_help= @@ -1447,6 +1448,8 @@ echo "$as_me: current value: \`$ac_new_val'" >&2;} fi done if $ac_cache_corrupted; then + { echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5 +echo "$as_me: error: in \`$ac_pwd':" >&2;} { echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5 echo "$as_me: error: changes in the environment can compromise the build" >&2;} { { echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5 @@ -1476,6 +1479,9 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + @@ -3229,11 +3235,13 @@ fi fi -test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH +test -z "$CC" && { { echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5 +echo "$as_me: error: in \`$ac_pwd':" >&2;} +{ { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH See \`config.log' for more details." >&5 echo "$as_me: error: no acceptable C compiler found in \$PATH See \`config.log' for more details." >&2;} - { (exit 1); exit 1; }; } + { (exit 1); exit 1; }; }; } # Provide some information about the compiler. echo "$as_me:$LINENO:" \ @@ -3319,11 +3327,13 @@ else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 +{ { echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5 +echo "$as_me: error: in \`$ac_pwd':" >&2;} { { echo "$as_me:$LINENO: error: C compiler cannot create executables See \`config.log' for more details." >&5 echo "$as_me: error: C compiler cannot create executables See \`config.log' for more details." >&2;} - { (exit 77); exit 77; }; } + { (exit 77); exit 77; }; }; } fi ac_exeext=$ac_cv_exeext @@ -3348,13 +3358,15 @@ if test "$cross_compiling" != yes; then if test "$cross_compiling" = maybe; then cross_compiling=yes else - { { echo "$as_me:$LINENO: error: cannot run C compiled programs. + { { echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5 +echo "$as_me: error: in \`$ac_pwd':" >&2;} +{ { echo "$as_me:$LINENO: error: cannot run C compiled programs. If you meant to cross compile, use \`--host'. See \`config.log' for more details." >&5 echo "$as_me: error: cannot run C compiled programs. If you meant to cross compile, use \`--host'. See \`config.log' for more details." >&2;} - { (exit 1); exit 1; }; } + { (exit 1); exit 1; }; }; } fi fi fi @@ -3392,11 +3404,13 @@ for ac_file in conftest.exe conftest conftest.*; do esac done else - { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link + { { echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5 +echo "$as_me: error: in \`$ac_pwd':" >&2;} +{ { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link See \`config.log' for more details." >&5 echo "$as_me: error: cannot compute suffix of executables: cannot compile and link See \`config.log' for more details." >&2;} - { (exit 1); exit 1; }; } + { (exit 1); exit 1; }; }; } fi rm -f conftest$ac_cv_exeext @@ -3443,11 +3457,13 @@ else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 +{ { echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5 +echo "$as_me: error: in \`$ac_pwd':" >&2;} { { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile See \`config.log' for more details." >&5 echo "$as_me: error: cannot compute suffix of object files: cannot compile See \`config.log' for more details." >&2;} - { (exit 1); exit 1; }; } + { (exit 1); exit 1; }; }; } fi rm -f conftest.$ac_cv_objext conftest.$ac_ext