On 11/10/18 14:34, Christophe Lyon wrote:
> The new arm-uclinuxfdpiceabi target behaves pretty much like
> arm-linux-gnueabi. In order the enable the same set of features, we
> have to update several configure scripts that generally match targets
> like *-*-linux*: in most places, we add *-uclinux* where there is
> already *-linux*, or uclinux* when there is already linux*.
>
> In gcc/config.gcc and libgcc/config.host we use *-*-uclinuxfdpiceabi
> because there is already a different behaviour for *-*uclinux* target.
>
> In libtool.m4, we use uclinuxfdpiceabi in cases where ELF shared
> libraries support is required, as uclinux does not guarantee that.
>
> 2018-XX-XX Christophe Lyon <christophe.l...@st.com>
>
> config/
> * futex.m4: Handle *-uclinux*.
> * tls.m4 (GCC_CHECK_TLS): Likewise.
>
> gcc/
> * config.gcc: Handle *-*-uclinuxfdpiceabi.
>
> libatomic/
> * configure.tgt: Handle arm*-*-uclinux*.
> * configure: Regenerate.
>
> libgcc/
> * config.host: Handle *-*-uclinuxfdpiceabi.
>
> libitm/
> * configure.tgt: Handle *-*-uclinux*.
> * configure: Regenerate.
>
> libstdc++-v3/
> * acinclude.m4: Handle uclinux*.
> * configure: Regenerate.
> * configure.host: Handle uclinux*
>
> * libtool.m4: Handle uclinux*.
What testing have you done to ensure that these new uclinux* changes
have not affected existing uclinux configurations?
Also, do you really need to use uclinuxfdpiceabi (which is quite
Arm-specific) everywhere, or would uclinuxfdpic* be better and ease work
for other fdpic targets?
R.
>
> Change-Id: I6a1fdcd9847d8a82179a214612a3474c1f492916
>
> diff --git a/config/futex.m4 b/config/futex.m4
> index e95144d..4dffe15 100644
> --- a/config/futex.m4
> +++ b/config/futex.m4
> @@ -9,7 +9,7 @@ AC_DEFUN([GCC_LINUX_FUTEX],[dnl
> GCC_ENABLE(linux-futex,default, ,[use the Linux futex system call],
> permit yes|no|default)
> case "$target" in
> - *-linux*)
> + *-linux* | *-uclinux*)
> case "$enable_linux_futex" in
> default)
> # If headers don't have gettid/futex syscalls definition, then
> diff --git a/config/tls.m4 b/config/tls.m4
> index 4e170c8..5a8676e 100644
> --- a/config/tls.m4
> +++ b/config/tls.m4
> @@ -76,7 +76,7 @@ AC_DEFUN([GCC_CHECK_TLS], [
> dnl Shared library options may depend on the host; this check
> dnl is only known to be needed for GNU/Linux.
> case $host in
> - *-*-linux*)
> + *-*-linux* | -*-uclinux*)
> LDFLAGS="-shared -Wl,--no-undefined $LDFLAGS"
> ;;
> esac
> diff --git a/gcc/config.gcc b/gcc/config.gcc
> index 0c579d1..793fc69 100644
> --- a/gcc/config.gcc
> +++ b/gcc/config.gcc
> @@ -753,7 +753,7 @@ case ${target} in
> *-*-fuchsia*)
> native_system_header_dir=/include
> ;;
> -*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-gnu* |
> *-*-kopensolaris*-gnu)
> +*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-gnu* |
> *-*-kopensolaris*-gnu | *-*-uclinuxfdpiceabi)
> extra_options="$extra_options gnu-user.opt"
> gas=yes
> gnu_ld=yes
> @@ -762,7 +762,7 @@ case ${target} in
> esac
> tmake_file="t-slibgcc"
> case $target in
> - *-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-kopensolaris*-gnu)
> + *-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-kopensolaris*-gnu
> | *-*-uclinuxfdpiceabi)
> :;;
> *-*-gnu*)
> native_system_header_dir=/include
> @@ -782,7 +782,7 @@ case ${target} in
> *-*-*android*)
> tm_defines="$tm_defines DEFAULT_LIBC=LIBC_BIONIC"
> ;;
> - *-*-*uclibc*)
> + *-*-*uclibc* | *-*-uclinuxfdpiceabi)
> tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC"
> ;;
> *-*-*musl*)
> @@ -1134,7 +1134,7 @@ arm*-*-netbsdelf*)
> tmake_file="${tmake_file} arm/t-arm"
> target_cpu_cname="arm6"
> ;;
> -arm*-*-linux-*) # ARM GNU/Linux with ELF
> +arm*-*-linux-* | arm*-*-uclinuxfdpiceabi) # ARM GNU/Linux
> with ELF
> tm_file="dbxelf.h elfos.h gnu-user.h linux.h linux-android.h
> glibc-stdint.h arm/elf.h arm/linux-gas.h arm/linux-elf.h"
> extra_options="${extra_options} linux-android.opt"
> case $target in
> diff --git a/libatomic/configure b/libatomic/configure
> index b902e2c..5b3ef8e 100755
> --- a/libatomic/configure
> +++ b/libatomic/configure
> @@ -5819,7 +5819,7 @@ irix5* | irix6* | nonstopux*)
> ;;
>
> # This must be Linux ELF.
> -linux* | k*bsd*-gnu | kopensolaris*-gnu)
> +linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> lt_cv_deplibs_check_method=pass_all
> ;;
>
> @@ -8305,7 +8305,7 @@ $as_echo_n "checking for $compiler option to produce
> PIC... " >&6; }
> lt_prog_compiler_static='-non_shared'
> ;;
>
> - linux* | k*bsd*-gnu | kopensolaris*-gnu)
> + linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinux*)
> case $cc_basename in
> # old Intel for x86_64 which still supported -KPIC.
> ecc*)
> @@ -8900,7 +8900,7 @@ _LT_EOF
> archive_expsym_cmds='sed "s,^,_," $export_symbols
> >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs
> $compiler_flags ${wl}-h,$soname
> ${wl}--retain-symbols-file,$output_objdir/$soname.expsym
> ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o
> $lib'
> ;;
>
> - gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
> + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> tmp_diet=no
> if test "$host_os" = linux-dietlibc; then
> case $cc_basename in
> @@ -10431,7 +10431,7 @@ linux*oldld* | linux*aout* | linux*coff*)
> ;;
>
> # This must be Linux ELF.
> -linux* | k*bsd*-gnu | kopensolaris*-gnu)
> +linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> version_type=linux
> need_lib_prefix=no
> need_version=no
> diff --git a/libatomic/configure.tgt b/libatomic/configure.tgt
> index ea8c34f..c1a608f 100644
> --- a/libatomic/configure.tgt
> +++ b/libatomic/configure.tgt
> @@ -124,7 +124,7 @@ case "${target}" in
> config_path="${config_path} linux/aarch64 posix"
> ;;
>
> - arm*-*-linux*)
> + arm*-*-linux* | arm*-*-uclinux*)
> # OS support for atomic primitives.
> config_path="${config_path} linux/arm posix"
> ;;
> diff --git a/libgcc/config.host b/libgcc/config.host
> index 029f656..28f3c14 100644
> --- a/libgcc/config.host
> +++ b/libgcc/config.host
> @@ -238,7 +238,7 @@ case ${host} in
> tmake_file="$tmake_file t-crtstuff-pic t-libgcc-pic t-eh-dw2-dip t-slibgcc
> t-slibgcc-fuchsia"
> extra_parts="crtbegin.o crtend.o"
> ;;
> -*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-gnu* |
> *-*-kopensolaris*-gnu)
> +*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-gnu* |
> *-*-kopensolaris*-gnu | *-*-uclinuxfdpiceabi)
> tmake_file="$tmake_file t-crtstuff-pic t-libgcc-pic t-eh-dw2-dip t-slibgcc
> t-slibgcc-gld t-slibgcc-elf-ver t-linux"
> extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
> if test x$enable_vtable_verify = xyes; then
> @@ -424,7 +424,7 @@ arm*-*-fuchsia*)
> arm*-*-netbsdelf*)
> tmake_file="$tmake_file arm/t-arm arm/t-netbsd t-slibgcc-gld-nover"
> ;;
> -arm*-*-linux*) # ARM GNU/Linux with ELF
> +arm*-*-linux* | arm*-*-uclinuxfdpiceabi) # ARM GNU/Linux
> with ELF
> tmake_file="${tmake_file} arm/t-arm t-fixedpoint-gnu-prefix t-crtfm"
> tmake_file="${tmake_file} arm/t-elf arm/t-bpabi arm/t-linux-eabi
> t-slibgcc-libgcc"
> tm_file="$tm_file arm/bpabi-lib.h"
> diff --git a/libitm/configure b/libitm/configure
> index dbf386d..fd82500 100644
> --- a/libitm/configure
> +++ b/libitm/configure
> @@ -6494,7 +6494,7 @@ irix5* | irix6* | nonstopux*)
> ;;
>
> # This must be Linux ELF.
> -linux* | k*bsd*-gnu | kopensolaris*-gnu)
> +linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> lt_cv_deplibs_check_method=pass_all
> ;;
>
> @@ -8981,7 +8981,7 @@ $as_echo_n "checking for $compiler option to produce
> PIC... " >&6; }
> lt_prog_compiler_static='-non_shared'
> ;;
>
> - linux* | k*bsd*-gnu | kopensolaris*-gnu)
> + linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinux*)
> case $cc_basename in
> # old Intel for x86_64 which still supported -KPIC.
> ecc*)
> @@ -9576,7 +9576,7 @@ _LT_EOF
> archive_expsym_cmds='sed "s,^,_," $export_symbols
> >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs
> $compiler_flags ${wl}-h,$soname
> ${wl}--retain-symbols-file,$output_objdir/$soname.expsym
> ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o
> $lib'
> ;;
>
> - gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
> + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> tmp_diet=no
> if test "$host_os" = linux-dietlibc; then
> case $cc_basename in
> @@ -11107,7 +11107,7 @@ linux*oldld* | linux*aout* | linux*coff*)
> ;;
>
> # This must be Linux ELF.
> -linux* | k*bsd*-gnu | kopensolaris*-gnu)
> +linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> version_type=linux
> need_lib_prefix=no
> need_version=no
> @@ -13008,7 +13008,7 @@ if test -z "$aix_libpath"; then
> aix_libpath="/usr/lib:/lib"; fi
> inherit_rpath_CXX=yes
> ;;
>
> - linux* | k*bsd*-gnu | kopensolaris*-gnu)
> + linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> case $cc_basename in
> KCC*)
> # Kuck and Associates, Inc. (KAI) C++ Compiler
> @@ -13595,7 +13595,7 @@ interix[3-9]*)
> postdeps_CXX=
> ;;
>
> -linux*)
> +linux* | uclinux*)
> case `$CC -V 2>&1 | sed 5q` in
> *Sun\ C*)
> # Sun C++ 5.9
> @@ -13846,7 +13846,7 @@ $as_echo_n "checking for $compiler option to produce
> PIC... " >&6; }
> ;;
> esac
> ;;
> - linux* | k*bsd*-gnu | kopensolaris*-gnu)
> + linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinux*)
> case $cc_basename in
> KCC*)
> # KAI C++ Compiler
> @@ -14767,7 +14767,7 @@ linux*oldld* | linux*aout* | linux*coff*)
> ;;
>
> # This must be Linux ELF.
> -linux* | k*bsd*-gnu | kopensolaris*-gnu)
> +linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> version_type=linux
> need_lib_prefix=no
> need_version=no
> @@ -16239,7 +16239,7 @@ fi
>
>
> case "$target" in
> - *-linux*)
> + *-linux* | *-uclinux*)
> case "$enable_linux_futex" in
> default)
> # If headers don't have gettid/futex syscalls definition, then
> @@ -16362,7 +16362,7 @@ _ACEOF
> if ac_fn_c_try_link "$LINENO"; then :
> chktls_save_LDFLAGS="$LDFLAGS"
> case $host in
> - *-*-linux*)
> + *-*-linux* | -*-uclinux*)
> LDFLAGS="-shared -Wl,--no-undefined $LDFLAGS"
> ;;
> esac
> diff --git a/libitm/configure.tgt b/libitm/configure.tgt
> index 0cbb097..bc6c3ca 100644
> --- a/libitm/configure.tgt
> +++ b/libitm/configure.tgt
> @@ -127,7 +127,7 @@ config_path="$ARCH posix generic"
>
> # Other system configury
> case "${target}" in
> - *-*-linux*)
> + *-*-linux* | *-*-uclinux*)
> if test "$enable_linux_futex" = yes; then
> config_path="linux/$ARCH linux $config_path"
> fi
> diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
> index 6d68e90..2e18049 100644
> --- a/libstdc++-v3/acinclude.m4
> +++ b/libstdc++-v3/acinclude.m4
> @@ -1395,7 +1395,7 @@ AC_DEFUN([GLIBCXX_ENABLE_LIBSTDCXX_TIME], [
> ac_has_nanosleep=yes
> ac_has_sched_yield=yes
> ;;
> - gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
> + gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu | uclinux*)
> AC_MSG_CHECKING([for at least GNU libc 2.17])
> AC_TRY_COMPILE(
> [#include <features.h>],
> @@ -1517,7 +1517,7 @@ AC_DEFUN([GLIBCXX_ENABLE_LIBSTDCXX_TIME], [
>
> if test x"$ac_has_clock_monotonic" != x"yes"; then
> case ${target_os} in
> - linux*)
> + linux* | uclinux*)
> AC_MSG_CHECKING([for clock_gettime syscall])
> AC_TRY_COMPILE(
> [#include <unistd.h>
> @@ -2402,7 +2402,7 @@ AC_DEFUN([GLIBCXX_ENABLE_CLOCALE], [
> # Default to "generic".
> if test $enable_clocale_flag = auto; then
> case ${target_os} in
> - linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu)
> + linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu | uclinux*)
> enable_clocale_flag=gnu
> ;;
> darwin*)
> @@ -2648,7 +2648,7 @@ AC_DEFUN([GLIBCXX_ENABLE_ALLOCATOR], [
> # Default to "new".
> if test $enable_libstdcxx_allocator_flag = auto; then
> case ${target_os} in
> - linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu)
> + linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu | uclinux*)
> enable_libstdcxx_allocator_flag=new
> ;;
> *)
> @@ -4282,7 +4282,7 @@ AC_DEFUN([GLIBCXX_ENABLE_FILESYSTEM_TS], [
> freebsd*|netbsd*|openbsd*|dragonfly*|darwin*)
> enable_libstdcxx_filesystem_ts=yes
> ;;
> - gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
> + gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu | uclinux*)
> enable_libstdcxx_filesystem_ts=yes
> ;;
> rtems*)
> @@ -4430,7 +4430,7 @@ dnl
> AC_MSG_CHECKING([for sendfile that can copy files])
> AC_CACHE_VAL(glibcxx_cv_sendfile, [dnl
> case "${target_os}" in
> - gnu* | linux* | solaris*)
> + gnu* | linux* | solaris* | uclinux*)
> GCC_TRY_COMPILE_OR_LINK(
> [#include <sys/sendfile.h>],
> [sendfile(1, 2, (off_t*)0, sizeof 1);],
> diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
> index d33081d..7780679 100755
> --- a/libstdc++-v3/configure
> +++ b/libstdc++-v3/configure
> @@ -6413,7 +6413,7 @@ irix5* | irix6* | nonstopux*)
> ;;
>
> # This must be Linux ELF.
> -linux* | k*bsd*-gnu | kopensolaris*-gnu)
> +linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> lt_cv_deplibs_check_method=pass_all
> ;;
>
> @@ -8765,7 +8765,7 @@ $as_echo_n "checking for $compiler option to produce
> PIC... " >&6; }
> lt_prog_compiler_static='-non_shared'
> ;;
>
> - linux* | k*bsd*-gnu | kopensolaris*-gnu)
> + linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinux*)
> case $cc_basename in
> # old Intel for x86_64 which still supported -KPIC.
> ecc*)
> @@ -9360,7 +9360,7 @@ _LT_EOF
> archive_expsym_cmds='sed "s,^,_," $export_symbols
> >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs
> $compiler_flags ${wl}-h,$soname
> ${wl}--retain-symbols-file,$output_objdir/$soname.expsym
> ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o
> $lib'
> ;;
>
> - gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
> + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> tmp_diet=no
> if test "$host_os" = linux-dietlibc; then
> case $cc_basename in
> @@ -10900,7 +10900,7 @@ linux*oldld* | linux*aout* | linux*coff*)
> ;;
>
> # This must be Linux ELF.
> -linux* | k*bsd*-gnu | kopensolaris*-gnu)
> +linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> version_type=linux
> need_lib_prefix=no
> need_version=no
> @@ -12825,7 +12825,7 @@ if test -z "$aix_libpath"; then
> aix_libpath="/usr/lib:/lib"; fi
> inherit_rpath_CXX=yes
> ;;
>
> - linux* | k*bsd*-gnu | kopensolaris*-gnu)
> + linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> case $cc_basename in
> KCC*)
> # Kuck and Associates, Inc. (KAI) C++ Compiler
> @@ -13412,7 +13412,7 @@ interix[3-9]*)
> postdeps_CXX=
> ;;
>
> -linux*)
> +linux* | uclinux*)
> case `$CC -V 2>&1 | sed 5q` in
> *Sun\ C*)
> # Sun C++ 5.9
> @@ -13663,7 +13663,7 @@ $as_echo_n "checking for $compiler option to produce
> PIC... " >&6; }
> ;;
> esac
> ;;
> - linux* | k*bsd*-gnu | kopensolaris*-gnu)
> + linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinux*)
> case $cc_basename in
> KCC*)
> # KAI C++ Compiler
> @@ -14584,7 +14584,7 @@ linux*oldld* | linux*aout* | linux*coff*)
> ;;
>
> # This must be Linux ELF.
> -linux* | k*bsd*-gnu | kopensolaris*-gnu)
> +linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> version_type=linux
> need_lib_prefix=no
> need_version=no
> @@ -15833,7 +15833,7 @@ fi
> # Default to "generic".
> if test $enable_clocale_flag = auto; then
> case ${target_os} in
> - linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu)
> + linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu | uclinux*)
> enable_clocale_flag=gnu
> ;;
> darwin*)
> @@ -16250,7 +16250,7 @@ fi
> # Default to "new".
> if test $enable_libstdcxx_allocator_flag = auto; then
> case ${target_os} in
> - linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu)
> + linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu | uclinux*)
> enable_libstdcxx_allocator_flag=new
> ;;
> *)
> @@ -20526,7 +20526,7 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
> ac_has_nanosleep=yes
> ac_has_sched_yield=yes
> ;;
> - gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
> + gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu | uclinux*)
> { $as_echo "$as_me:${as_lineno-$LINENO}: checking for at least GNU
> libc 2.17" >&5
> $as_echo_n "checking for at least GNU libc 2.17... " >&6; }
> cat confdefs.h - <<_ACEOF >conftest.$ac_ext
> @@ -21026,7 +21026,7 @@ $as_echo "$ac_has_nanosleep" >&6; }
>
> if test x"$ac_has_clock_monotonic" != x"yes"; then
> case ${target_os} in
> - linux*)
> + linux* | uclinux*)
> { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime
> syscall" >&5
> $as_echo_n "checking for clock_gettime syscall... " >&6; }
> cat confdefs.h - <<_ACEOF >conftest.$ac_ext
> @@ -27918,7 +27918,7 @@ _ACEOF
> if ac_fn_c_try_link "$LINENO"; then :
> chktls_save_LDFLAGS="$LDFLAGS"
> case $host in
> - *-*-linux*)
> + *-*-linux* | -*-uclinux*)
> LDFLAGS="-shared -Wl,--no-undefined $LDFLAGS"
> ;;
> esac
> @@ -53578,7 +53578,7 @@ _ACEOF
> if ac_fn_c_try_link "$LINENO"; then :
> chktls_save_LDFLAGS="$LDFLAGS"
> case $host in
> - *-*-linux*)
> + *-*-linux* | -*-uclinux*)
> LDFLAGS="-shared -Wl,--no-undefined $LDFLAGS"
> ;;
> esac
> @@ -59771,7 +59771,7 @@ _ACEOF
> if ac_fn_c_try_link "$LINENO"; then :
> chktls_save_LDFLAGS="$LDFLAGS"
> case $host in
> - *-*-linux*)
> + *-*-linux* | -*-uclinux*)
> LDFLAGS="-shared -Wl,--no-undefined $LDFLAGS"
> ;;
> esac
> @@ -78397,7 +78397,7 @@ fi
>
>
> case "$target" in
> - *-linux*)
> + *-linux* | *-uclinux*)
> case "$enable_linux_futex" in
> default)
> # If headers don't have gettid/futex syscalls definition, then
> @@ -80033,7 +80033,7 @@ $as_echo_n "checking whether to build Filesystem TS
> support... " >&6; }
> freebsd*|netbsd*|openbsd*|dragonfly*|darwin*)
> enable_libstdcxx_filesystem_ts=yes
> ;;
> - gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
> + gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu | uclinux*)
> enable_libstdcxx_filesystem_ts=yes
> ;;
> rtems*)
> @@ -80457,7 +80457,7 @@ $as_echo_n "checking for sendfile that can copy
> files... " >&6; }
> $as_echo_n "(cached) " >&6
> else
> case "${target_os}" in
> - gnu* | linux* | solaris*)
> + gnu* | linux* | solaris* | uclinux*)
> if test x$gcc_no_link = xyes; then
> cat confdefs.h - <<_ACEOF >conftest.$ac_ext
> /* end confdefs.h. */
> diff --git a/libstdc++-v3/configure.host b/libstdc++-v3/configure.host
> index 155a3cd..1c298ab 100644
> --- a/libstdc++-v3/configure.host
> +++ b/libstdc++-v3/configure.host
> @@ -264,7 +264,7 @@ case "${host_os}" in
> linux-musl*)
> os_include_dir="os/generic"
> ;;
> - gnu* | linux* | kfreebsd*-gnu)
> + gnu* | linux* | kfreebsd*-gnu | uclinux*)
> if [ "$uclibc" = "yes" ]; then
> os_include_dir="os/uclibc"
> elif [ "$bionic" = "yes" ]; then
> @@ -327,7 +327,7 @@ esac
> # Set any OS-dependent and CPU-dependent bits.
> # THIS TABLE IS SORTED. KEEP IT THAT WAY.
> case "${host}" in
> - *-*-linux*)
> + *-*-linux* | *-*-uclinux*)
> case "${host_cpu}" in
> i[567]86)
> abi_baseline_pair=i486-linux-gnu
> @@ -358,7 +358,7 @@ case "${host}" in
> fi
> esac
> case "${host}" in
> - arm*-*-linux-*)
> + arm*-*-linux-* | arm*-*-uclinuxfdpiceabi)
>
> port_specific_symbol_files="\$(srcdir)/../config/os/gnu-linux/arm-eabi-extra.ver"
> ;;
> esac
> diff --git a/libtool.m4 b/libtool.m4
> index 940faaa..49ab293 100644
> --- a/libtool.m4
> +++ b/libtool.m4
> @@ -2449,7 +2449,7 @@ linux*oldld* | linux*aout* | linux*coff*)
> ;;
>
> # This must be Linux ELF.
> -linux* | k*bsd*-gnu | kopensolaris*-gnu)
> +linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> version_type=linux
> need_lib_prefix=no
> need_version=no
> @@ -3089,7 +3089,7 @@ irix5* | irix6* | nonstopux*)
> ;;
>
> # This must be Linux ELF.
> -linux* | k*bsd*-gnu | kopensolaris*-gnu)
> +linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> lt_cv_deplibs_check_method=pass_all
> ;;
>
> @@ -3734,7 +3734,7 @@ m4_if([$1], [CXX], [
> ;;
> esac
> ;;
> - linux* | k*bsd*-gnu | kopensolaris*-gnu)
> + linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinux*)
> case $cc_basename in
> KCC*)
> # KAI C++ Compiler
> @@ -4032,7 +4032,7 @@ m4_if([$1], [CXX], [
> _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
> ;;
>
> - linux* | k*bsd*-gnu | kopensolaris*-gnu)
> + linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinux*)
> case $cc_basename in
> # old Intel for x86_64 which still supported -KPIC.
> ecc*)
> @@ -4449,7 +4449,7 @@ _LT_EOF
> _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols
> >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs
> $compiler_flags ${wl}-h,$soname
> ${wl}--retain-symbols-file,$output_objdir/$soname.expsym
> ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o
> $lib'
> ;;
>
> - gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
> + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> tmp_diet=no
> if test "$host_os" = linux-dietlibc; then
> case $cc_basename in
> @@ -5946,7 +5946,7 @@ if test "$_lt_caught_CXX_error" != yes; then
> _LT_TAGVAR(inherit_rpath, $1)=yes
> ;;
>
> - linux* | k*bsd*-gnu | kopensolaris*-gnu)
> + linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
> case $cc_basename in
> KCC*)
> # Kuck and Associates, Inc. (KAI) C++ Compiler
> @@ -6598,7 +6598,7 @@ interix[[3-9]]*)
> _LT_TAGVAR(postdeps,$1)=
> ;;
>
> -linux*)
> +linux* | uclinux*)
> case `$CC -V 2>&1 | sed 5q` in
> *Sun\ C*)
> # Sun C++ 5.9
>
