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configure.ac: Add --enable-languages=default to mean default and make --enable-languages=all...

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* configure.ac: Add --enable-languages=default to mean default and
	make --enable-languages=all mean all supported languages.
	* configure: Regenerated.
	gcc/
	* doc/invoke.texi (--enable-languages): Update documentation.

From-SVN: r248454
This commit is contained in:
Nathan Sidwell 2017-05-25 11:05:38 +00:00 committed by Nathan Sidwell
parent 56af751e21
commit cdfee50a5b
5 changed files with 166 additions and 117 deletions
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6
ChangeLog
View File

@ -1,3 +1,9 @@
2017-05-25 Nathan Sidwell <nathan@acm.org>
* configure.ac: Add --enable-languages=default to mean default and
make --enable-languages=all mean all supported languages.
* configure: Regenerated.
2017-05-24 Segher Boessenkool <segher@kernel.crashing.org>
* config.gcc (powerpc*-*-*spe*): New.

140
configure vendored
View File

@ -556,7 +556,6 @@ enable_option_checking=no
ac_subst_vars='LTLIBOBJS
LIBOBJS
compare_exclusions
host_shared
stage2_werror_flag
stage1_checking
stage1_cflags
@ -645,6 +644,7 @@ get_gcc_base_ver
extra_host_zlib_configure_flags
extra_host_libiberty_configure_flags
stage1_languages
host_shared
extra_linker_plugin_flags
extra_linker_plugin_configure_flags
islinc
@ -781,6 +781,7 @@ enable_isl_version_check
enable_lto
enable_linker_plugin_configure_flags
enable_linker_plugin_flags
enable_host_shared
enable_stage1_languages
enable_objc_gc
with_target_bdw_gc
@ -796,7 +797,6 @@ with_build_time_tools
enable_maintainer_mode
enable_stage1_checking
enable_werror
enable_host_shared
'
ac_precious_vars='build_alias
host_alias
@ -1498,6 +1498,7 @@ Optional Features:
--enable-linker-plugin-flags=FLAGS
additional flags for configuring and building linker
plugins [none]
--enable-host-shared build host code as shared libraries
--enable-stage1-languages[=all]
choose additional languages to build during stage1.
Mostly useful for compiler development
@ -1515,7 +1516,6 @@ Optional Features:
choose additional checking for stage1 of the
compiler
--enable-werror enable -Werror in bootstrap stage2 and later
--enable-host-shared build host code as shared libraries
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
@ -6090,6 +6090,16 @@ fi
# Enable --enable-host-shared.
# Checked early to determine whether jit is an 'all' language
# Check whether --enable-host-shared was given.
if test "${enable_host_shared+set}" = set; then :
enableval=$enable_host_shared; host_shared=$enableval
else
host_shared=no
fi
# By default, C and C++ are the only stage 1 languages.
stage1_languages=,c,
@ -6108,7 +6118,7 @@ if test -d ${srcdir}/gcc; then
enable_languages="${LANGUAGES}"
echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
else
enable_languages=all
enable_languages=default
fi
else
if test x"${enable_languages}" = x ||
@ -6160,6 +6170,7 @@ if test -d ${srcdir}/gcc; then
for other in ${lang_requires} ${lang_requires_boot_languages}; do
case ,${enable_languages}, in
*,$other,*) ;;
*,default,*) ;;
*,all,*) ;;
*,$language,*)
echo " \`$other' language required by \`$language'; enabling" 1>&2
@ -6171,6 +6182,7 @@ if test -d ${srcdir}/gcc; then
if test "$other" != "c"; then
case ,${enable_stage1_languages}, in
*,$other,*) ;;
*,default,*) ;;
*,all,*) ;;
*)
case ,${enable_languages}, in
@ -6208,7 +6220,7 @@ if test -d ${srcdir}/gcc; then
esac
fi
missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
potential_languages=,c,
enabled_target_libs=
@ -6240,30 +6252,37 @@ if test -d ${srcdir}/gcc; then
fi
add_this_lang=no
case ,${enable_languages}, in
*,${language},*)
# Language was explicitly selected; include it
# unless it is C, which is enabled by default.
if test "$language" != "c"; then
# C is always enabled, so no need to add it again
if test "$language" != "c"; then
case ,${enable_languages}, in
*,${language},*)
# Language was explicitly selected; include it
add_this_lang=yes
fi
;;
*,all,*)
# 'all' was selected, select it if it is a default language
if test "$language" != "c"; then
;;
*,all,*)
# All languages are enabled
add_this_lang=all
;;
*,default,*)
# 'default' was selected, select it if it is a default language
add_this_lang=${build_by_default}
fi
;;
esac
;;
esac
fi
# Disable languages that need other directories if these aren't available.
for i in $subdir_requires; do
test -f "$srcdir/gcc/$i/config-lang.in" && continue
case ,${enable_languages}, in
*,${language},*)
case ${add_this_lang} in
yes)
# Specifically requested language; tell them.
as_fn_error "The gcc/$i directory contains parts of $language but is missing" "$LINENO" 5
;;
all)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: The gcc/$i directory contains parts of $language but is missing" >&5
$as_echo "$as_me: WARNING: The gcc/$i directory contains parts of $language but is missing" >&2;}
add_this_lang=unsupported
;;
*)
# Silently disable.
add_this_lang=unsupported
@ -6272,20 +6291,55 @@ if test -d ${srcdir}/gcc; then
done
# Disable Ada if no preexisting GNAT is available.
case ,${enable_languages},:${language}:${have_gnat} in
*,${language},*:ada:no)
case ${add_this_lang}:${language}:${have_gnat} in
yes:ada:no)
# Specifically requested language; tell them.
as_fn_error "GNAT is required to build $language" "$LINENO" 5
;;
all:ada:no)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: GNAT is required to build $language" >&5
$as_echo "$as_me: WARNING: GNAT is required to build $language" >&2;}
add_this_lang=unsupported
;;
*:ada:no)
# Silently disable.
add_this_lang=unsupported
;;
esac
# Disable a language that is unsupported by the target.
case " $unsupported_languages " in
*" $language "*)
# Disable jit if -enable-host-shared not specified
case ${add_this_lang}:${language}:${host_shared} in
yes:jit:no)
# PR jit/64780: explicitly specify --enable-host-shared
as_fn_error "
Enabling language \"jit\" requires --enable-host-shared.
--enable-host-shared typically slows the rest of the compiler down by
a few %, so you must explicitly enable it.
If you want to build both the jit and the regular compiler, it is often
best to do this via two separate configure/builds, in separate
directories, to avoid imposing the performance cost of
--enable-host-shared on the regular compiler." "$LINENO" 5
;;
all:jit:no)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: --enable-host-shared required to build $language" >&5
$as_echo "$as_me: WARNING: --enable-host-shared required to build $language" >&2;}
add_this_lang=unsupported
;;
*:jit:no)
# Silently disable.
add_this_lang=unsupported
;;
esac
# Disable a language that is unsupported by the target.
case "${add_this_lang}: $unsupported_languages " in
no:*) ;;
unsupported:*) ;;
*:*" $language "*)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ${language} not supported for this target" >&5
$as_echo "$as_me: WARNING: ${language} not supported for this target" >&2;}
add_this_lang=unsupported
;;
esac
@ -6302,7 +6356,7 @@ if test -d ${srcdir}/gcc; then
noconfigdirs="$noconfigdirs $lang_dirs"
potential_languages="${potential_languages}${language},"
;;
yes)
all|yes)
new_enable_languages="${new_enable_languages}${language},"
potential_languages="${potential_languages}${language},"
missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
@ -14605,40 +14659,6 @@ fi
# Enable --enable-host-shared.
# Check whether --enable-host-shared was given.
if test "${enable_host_shared+set}" = set; then :
enableval=$enable_host_shared; host_shared=$enableval
else
host_shared=no
fi
# PR jit/64780: Require the user to explicitly specify
# --enable-host-shared if the jit is enabled, hinting
# that they might want to do a separate configure/build of
# the jit, to avoid users from slowing down the rest of the
# compiler by enabling the jit.
if test ${host_shared} = "no" ; then
case "${enable_languages}" in
*jit*)
as_fn_error "
Enabling language \"jit\" requires --enable-host-shared.
--enable-host-shared typically slows the rest of the compiler down by
a few %, so you must explicitly enable it.
If you want to build both the jit and the regular compiler, it is often
best to do this via two separate configure/builds, in separate
directories, to avoid imposing the performance cost of
--enable-host-shared on the regular compiler." "$LINENO" 5
;;
*)
;;
esac
fi
# Specify what files to not compare during bootstrap.
compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"

124
configure.ac
View File

@ -1766,6 +1766,13 @@ AC_ARG_ENABLE(linker-plugin-flags,
extra_linker_plugin_flags=)
AC_SUBST(extra_linker_plugin_flags)
# Enable --enable-host-shared.
# Checked early to determine whether jit is an 'all' language
AC_ARG_ENABLE(host-shared,
[AS_HELP_STRING([--enable-host-shared],
[build host code as shared libraries])],
[host_shared=$enableval], [host_shared=no])
AC_SUBST(host_shared)
# By default, C and C++ are the only stage 1 languages.
stage1_languages=,c,
@ -1784,7 +1791,7 @@ if test -d ${srcdir}/gcc; then
enable_languages="${LANGUAGES}"
echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
else
enable_languages=all
enable_languages=default
fi
else
if test x"${enable_languages}" = x ||
@ -1836,6 +1843,7 @@ if test -d ${srcdir}/gcc; then
for other in ${lang_requires} ${lang_requires_boot_languages}; do
case ,${enable_languages}, in
*,$other,*) ;;
*,default,*) ;;
*,all,*) ;;
*,$language,*)
echo " \`$other' language required by \`$language'; enabling" 1>&2
@ -1847,6 +1855,7 @@ if test -d ${srcdir}/gcc; then
if test "$other" != "c"; then
case ,${enable_stage1_languages}, in
*,$other,*) ;;
*,default,*) ;;
*,all,*) ;;
*)
case ,${enable_languages}, in
@ -1884,7 +1893,7 @@ if test -d ${srcdir}/gcc; then
esac
fi
missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
potential_languages=,c,
enabled_target_libs=
@ -1916,30 +1925,36 @@ if test -d ${srcdir}/gcc; then
fi
add_this_lang=no
case ,${enable_languages}, in
*,${language},*)
# Language was explicitly selected; include it
# unless it is C, which is enabled by default.
if test "$language" != "c"; then
# C is always enabled, so no need to add it again
if test "$language" != "c"; then
case ,${enable_languages}, in
*,${language},*)
# Language was explicitly selected; include it
add_this_lang=yes
fi
;;
*,all,*)
# 'all' was selected, select it if it is a default language
if test "$language" != "c"; then
;;
*,all,*)
# All languages are enabled
add_this_lang=all
;;
*,default,*)
# 'default' was selected, select it if it is a default language
add_this_lang=${build_by_default}
fi
;;
esac
;;
esac
fi
# Disable languages that need other directories if these aren't available.
for i in $subdir_requires; do
test -f "$srcdir/gcc/$i/config-lang.in" && continue
case ,${enable_languages}, in
*,${language},*)
case ${add_this_lang} in
yes)
# Specifically requested language; tell them.
AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
;;
all)
AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
add_this_lang=unsupported
;;
*)
# Silently disable.
add_this_lang=unsupported
@ -1948,20 +1963,52 @@ if test -d ${srcdir}/gcc; then
done
# Disable Ada if no preexisting GNAT is available.
case ,${enable_languages},:${language}:${have_gnat} in
*,${language},*:ada:no)
case ${add_this_lang}:${language}:${have_gnat} in
yes:ada:no)
# Specifically requested language; tell them.
AC_MSG_ERROR([GNAT is required to build $language])
;;
all:ada:no)
AC_MSG_WARN([GNAT is required to build $language])
add_this_lang=unsupported
;;
*:ada:no)
# Silently disable.
add_this_lang=unsupported
;;
esac
# Disable a language that is unsupported by the target.
case " $unsupported_languages " in
*" $language "*)
# Disable jit if -enable-host-shared not specified
case ${add_this_lang}:${language}:${host_shared} in
yes:jit:no)
# PR jit/64780: explicitly specify --enable-host-shared
AC_MSG_ERROR([
Enabling language "jit" requires --enable-host-shared.
--enable-host-shared typically slows the rest of the compiler down by
a few %, so you must explicitly enable it.
If you want to build both the jit and the regular compiler, it is often
best to do this via two separate configure/builds, in separate
directories, to avoid imposing the performance cost of
--enable-host-shared on the regular compiler.])
;;
all:jit:no)
AC_MSG_WARN([--enable-host-shared required to build $language])
add_this_lang=unsupported
;;
*:jit:no)
# Silently disable.
add_this_lang=unsupported
;;
esac
# Disable a language that is unsupported by the target.
case "${add_this_lang}: $unsupported_languages " in
no:*) ;;
unsupported:*) ;;
*:*" $language "*)
AC_MSG_WARN([${language} not supported for this target])
add_this_lang=unsupported
;;
esac
@ -1978,7 +2025,7 @@ if test -d ${srcdir}/gcc; then
noconfigdirs="$noconfigdirs $lang_dirs"
potential_languages="${potential_languages}${language},"
;;
yes)
all|yes)
new_enable_languages="${new_enable_languages}${language},"
potential_languages="${potential_languages}${language},"
missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
@ -3478,37 +3525,6 @@ fi
AC_SUBST(stage2_werror_flag)
# Enable --enable-host-shared.
AC_ARG_ENABLE(host-shared,
[AS_HELP_STRING([--enable-host-shared],
[build host code as shared libraries])],
[host_shared=$enableval], [host_shared=no])
AC_SUBST(host_shared)
# PR jit/64780: Require the user to explicitly specify
# --enable-host-shared if the jit is enabled, hinting
# that they might want to do a separate configure/build of
# the jit, to avoid users from slowing down the rest of the
# compiler by enabling the jit.
if test ${host_shared} = "no" ; then
case "${enable_languages}" in
*jit*)
AC_MSG_ERROR([
Enabling language "jit" requires --enable-host-shared.
--enable-host-shared typically slows the rest of the compiler down by
a few %, so you must explicitly enable it.
If you want to build both the jit and the regular compiler, it is often
best to do this via two separate configure/builds, in separate
directories, to avoid imposing the performance cost of
--enable-host-shared on the regular compiler.])
;;
*)
;;
esac
fi
# Specify what files to not compare during bootstrap.
compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"

4
gcc/ChangeLog
View File

@ -1,3 +1,7 @@
2017-05-25 Nathan Sidwell <nathan@acm.org>
* doc/invoke.texi (--enable-languages): Update documentation.
2017-05-25 Martin Liska <mliska@suse.cz>
* dumpfile.c: Add TDF_FOLDING.

9
gcc/doc/install.texi
View File

@ -1621,14 +1621,17 @@ their runtime libraries should be built. For a list of valid values for
grep ^language= */config-lang.in
@end smallexample
Currently, you can use any of the following:
@code{all}, @code{ada}, @code{c}, @code{c++}, @code{fortran},
@code{all}, @code{default}, @code{ada}, @code{c}, @code{c++}, @code{fortran},
@code{go}, @code{jit}, @code{lto}, @code{objc}, @code{obj-c++}.
Building the Ada compiler has special requirements, see below.
If you do not pass this flag, or specify the option @code{all}, then all
If you do not pass this flag, or specify the option @code{default}, then the
default languages available in the @file{gcc} sub-tree will be configured.
Ada, Go, Jit, and Objective-C++ are not default languages. LTO is not a
default language, but is built by default because @option{--enable-lto} is
enabled by default. The other languages are default languages.
enabled by default. The other languages are default languages. If
@code{all} is specified, then all available languages are built. An
exception is @code{jit} language, which requires
@option{--enable-host-shared} to be included with @code{all}.
@item --enable-stage1-languages=@var{lang1},@var{lang2},@dots{}
Specify that a particular subset of compilers and their runtime