Mostly useful for compiler development
--enable-objc-gc enable use of Boehm's garbage collector with the GNU
Objective-C runtime
- --enable-vtable-verify Enable vtable verification feature
+ --enable-vtable-verify Enable vtable verification feature
--enable-serial-[{host,target,build}-]configure
force sequential configuration of sub-packages for
the host, target or build machine, or all
target-libstdc++-v3 \
target-libsanitizer \
target-libvtv \
+ target-libmpx \
target-libssp \
target-libquadmath \
target-libgfortran \
fi
fi
+
+# Enable libmpx on supported systems by request.
+if test -d ${srcdir}/libmpx; then
+ if test x$enable_libmpx = xyes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libmpx support" >&5
+$as_echo_n "checking for libmpx support... " >&6; }
+ if (srcdir=${srcdir}/libmpx; \
+ . ${srcdir}/configure.tgt; \
+ test "$LIBMPX_SUPPORTED" != "yes")
+ then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ noconfigdirs="$noconfigdirs target-libmpx"
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+ fi
+ else
+ noconfigdirs="$noconfigdirs target-libmpx"
+ fi
+fi
+
+
+
# Disable libquadmath for some systems.
case "${target}" in
avr-*-*)
avr-*-*)
noconfigdirs="$noconfigdirs target-libstdc++-v3"
;;
+ ft32-*-*)
+ noconfigdirs="$noconfigdirs target-libstdc++-v3"
+ ;;
esac
fi
*-mingw*)
host_makefile_frag="config/mh-mingw"
;;
- alpha*-*-linux*)
+ alpha*-linux*)
host_makefile_frag="config/mh-alpha-linux"
;;
hppa*-hp-hpux10*)
;;
esac
+# When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
+# C++98 compiler can still start the bootstrap.
+if test "$enable_bootstrap:$GXX" = "yes:yes"; then
+ CXX="$CXX -std=c++98"
+fi
+
# Used for setting $lt_cv_objdir
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
$as_echo_n "checking for objdir... " >&6; }
fi
fi
+ # If we're building an offloading compiler, add the LTO front end.
+ if test x"$enable_as_accelerator_for" != x ; then
+ case ,${enable_languages}, in
+ *,lto,*) ;;
+ *) enable_languages="${enable_languages},lto" ;;
+ esac
+ fi
+
missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
potential_languages=,c,
# gcc) are built with "-O2 -g", so include those options when setting
# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
if test "x$CFLAGS_FOR_TARGET" = x; then
- CFLAGS_FOR_TARGET=$CFLAGS
- case " $CFLAGS " in
- *" -O2 "*) ;;
- *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
- esac
- case " $CFLAGS " in
- *" -g "* | *" -g3 "*) ;;
- *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
- esac
+ if test "x${is_cross_compiler}" = xyes; then
+ CFLAGS_FOR_TARGET="-g -O2"
+ else
+ CFLAGS_FOR_TARGET=$CFLAGS
+ case " $CFLAGS " in
+ *" -O2 "*) ;;
+ *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
+ esac
+ case " $CFLAGS " in
+ *" -g "* | *" -g3 "*) ;;
+ *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
+ esac
+ fi
fi
if test "x$CXXFLAGS_FOR_TARGET" = x; then
- CXXFLAGS_FOR_TARGET=$CXXFLAGS
- case " $CXXFLAGS " in
- *" -O2 "*) ;;
- *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
- esac
- case " $CXXFLAGS " in
- *" -g "* | *" -g3 "*) ;;
- *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
- esac
+ if test "x${is_cross_compiler}" = xyes; then
+ CXXFLAGS_FOR_TARGET="-g -O2"
+ else
+ CXXFLAGS_FOR_TARGET=$CXXFLAGS
+ case " $CXXFLAGS " in
+ *" -O2 "*) ;;
+ *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
+ esac
+ case " $CXXFLAGS " in
+ *" -g "* | *" -g3 "*) ;;
+ *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
+ esac
+ fi
fi
bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
fi
+# If we are building libmpx, bootstrap it.
+if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
+ bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
+fi
+
# Determine whether gdb needs tk/tcl or not.
# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
# and in that case we want gdb to be built without tk. Ugh!
# multilib is not explicitly enabled.
case "$target:$have_compiler:$host:$target:$enable_multilib" in
x86_64-*linux*:yes:$build:$build:)
- # Make sure we have a developement environment that handles 32-bit
+ # Make sure we have a development environment that handles 32-bit
dev64=no
echo "int main () { return 0; }" > conftest.c
${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
fi
rm -f conftest*
if test x${dev64} != xyes ; then
- as_fn_error "I suspect your system does not have 32-bit developement libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib." "$LINENO" 5
+ as_fn_error "I suspect your system does not have 32-bit development libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib." "$LINENO" 5
fi
;;
esac
enableval=$enable_stage1_checking; stage1_checking=--enable-checking=${enable_stage1_checking}
else
if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
- stage1_checking=--enable-checking=yes,types
+ # For --disable-checking or implicit --enable-checking=release, avoid
+ # setting --enable-checking=gc in the default stage1 checking for LTO
+ # bootstraps. See PR62077.
+ stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types
+ case $BUILD_CONFIG in
+ *lto*)
+ if test "x$enable_checking" = x && \
+ test -d ${srcdir}/gcc && \
+ test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
+ stage1_checking=--enable-checking=yes,types
+ fi;;
+ *) stage1_checking=--enable-checking=yes,types;;
+ esac
else
stage1_checking=--enable-checking=$enable_checking,types
fi
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