diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 61 |
1 files changed, 7 insertions, 54 deletions
diff --git a/configure.ac b/configure.ac index b4e1266a921..27692b45bf8 100644 --- a/configure.ac +++ b/configure.ac @@ -1204,20 +1204,6 @@ case "$have_compiler:$host:$target:$enable_bootstrap" in ;; esac -# See if we are building gcc with C++. -AC_ARG_ENABLE(build-with-cxx, -[AS_HELP_STRING([--enable-build-with-cxx], - [build with C++ compiler instead of C compiler])], -ENABLE_BUILD_WITH_CXX=$enableval, -ENABLE_BUILD_WITH_CXX=no) - -# Build stage1 with C and build stages 2 and 3 with C++. -AC_ARG_ENABLE(build-poststage1-with-cxx, -[AS_HELP_STRING([--enable-build-poststage1-with-cxx], - [build stages 2 and 3 with C++, not C])], -ENABLE_BUILD_POSTSTAGE1_WITH_CXX=$enableval, -ENABLE_BUILD_POSTSTAGE1_WITH_CXX=yes) - # Used for setting $lt_cv_objdir _LT_CHECK_OBJDIR @@ -1595,7 +1581,7 @@ ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always. ]) -# By default, C is the only stage 1 language. +# By default, C and C++ are the only stage 1 languages. stage1_languages=,c, # Target libraries that we bootstrap. @@ -1633,15 +1619,14 @@ if test -d ${srcdir}/gcc; then ;; esac - # If bootstrapping, then using --enable-build-with-cxx or - # --enable-build-poststage1-with-cxx requires enabling C++. - case ",$enable_languages,:,$ENABLE_BUILD_WITH_CXX,$ENABLE_BUILD_POSTSTAGE1_WITH_CXX,:$enable_bootstrap" in - *,c++,*:*:*) ;; - *:*,yes,*:yes) + # If bootstrapping, C++ must be enabled. + case ",$enable_languages,:$enable_bootstrap" in + *,c++,*:*) ;; + *:yes) if test -f ${srcdir}/gcc/cp/config-lang.in; then enable_languages="${enable_languages},c++" else - AC_MSG_ERROR([bootstrapping with --enable-build-with-cxx or --enable-build-poststage1-with-cxx requires c++ sources]) + AC_MSG_ERROR([bootstrapping requires c++ sources]) fi ;; esac @@ -1736,10 +1721,7 @@ if test -d ${srcdir}/gcc; then fi if test "$language" = "c++"; then - if test "$ENABLE_BUILD_WITH_CXX" = "yes" \ - || test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then - boot_language=yes - fi + boot_language=yes fi case ,${enable_languages}, in @@ -3129,26 +3111,6 @@ case $build in esac ;; esac -# This is aimed to mimic bootstrap with a non-GCC compiler to catch problems. -if test "$GCC" = yes -a "$ENABLE_BUILD_WITH_CXX" != yes; then - saved_CFLAGS="$CFLAGS" - - # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it. - CFLAGS="$CFLAGS -fkeep-inline-functions" - AC_MSG_CHECKING([whether -fkeep-inline-functions is supported]) - AC_TRY_COMPILE([ -#if (__GNUC__ < 3) \ - || (__GNUC__ == 3 && (__GNUC_MINOR__ < 3 \ - || (__GNUC_MINOR__ == 3 && __GNUC_PATCHLEVEL__ < 1))) -#error http://gcc.gnu.org/PR29382 -#endif - ],, - [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"], - [AC_MSG_RESULT([no])]) - - CFLAGS="$saved_CFLAGS" -fi - AC_SUBST(stage1_cflags) # Enable --enable-checking in stage1 of the compiler. @@ -3178,15 +3140,6 @@ case ${enable_werror} in esac AC_SUBST(stage2_werror_flag) -# If using ENABLE_BUILD_POSTSTAGE1_WITH_CXX, pass -# --enable-build-with-cxx after stage1. -if test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then - POSTSTAGE1_CONFIGURE_FLAGS=--enable-build-with-cxx -else - POSTSTAGE1_CONFIGURE_FLAGS= -fi -AC_SUBST(POSTSTAGE1_CONFIGURE_FLAGS) - # Specify what files to not compare during bootstrap. compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*" |