diff options
Diffstat (limited to 'libgcc/configure')
-rw-r--r-- | libgcc/configure | 463 |
1 files changed, 460 insertions, 3 deletions
diff --git a/libgcc/configure b/libgcc/configure index 35896deb7b..08c931929c 100644 --- a/libgcc/configure +++ b/libgcc/configure @@ -566,9 +566,13 @@ sfp_machine_header set_use_emutls set_have_cc_tls vis_hide +accel_dir_suffix +force_explicit_eh_registry fixed_point enable_decimal_float decimal_float +EGREP +GREP long_double_type_size double_type_size CPP @@ -608,6 +612,7 @@ build_os build_vendor build_cpu build +with_aix_soname enable_vtable_verify enable_shared libgcc_topdir @@ -657,6 +662,7 @@ with_cross_host with_ld enable_shared enable_vtable_verify +with_aix_soname enable_version_specific_runtime_libs with_slibdir enable_maintainer_mode @@ -664,6 +670,8 @@ with_build_libsubdir enable_decimal_float with_system_libunwind enable_sjlj_exceptions +enable_explicit_exception_frame_registration +with_glibc_version enable_tls ' ac_precious_vars='build_alias @@ -1301,6 +1309,10 @@ Optional Features: to use --enable-sjlj-exceptions force use of builtin_setjmp for exceptions + --enable-explicit-exception-frame-registration + register exception tables explicitly at module + start, for use e.g. for compatibility with + installations without PT_GNU_EH_FRAME support --enable-tls Use thread-local storage [default=yes] Optional Packages: @@ -1309,9 +1321,14 @@ Optional Packages: --with-target-subdir=SUBDIR Configuring in a subdirectory for target --with-cross-host=HOST Configuring with a cross compiler --with-ld arrange to use the specified ld (full pathname) + --with-aix-soname=aix|svr4|both + shared library versioning (aka "SONAME") variant to + provide on AIX --with-slibdir=DIR shared libraries in DIR LIBDIR --with-build-libsubdir=DIR Directory where to find libraries for build system --with-system-libunwind use installed libunwind + --with-glibc-version=M.N + assume GCC used with glibc version M.N or later Some influential environment variables: CC C compiler command @@ -1699,6 +1716,35 @@ rm -f conftest.val return $ac_retval } # ac_fn_c_compute_int + +# ac_fn_c_check_header_preproc LINENO HEADER VAR +# ---------------------------------------------- +# Tests whether HEADER is present, setting the cache variable VAR accordingly. +ac_fn_c_check_header_preproc () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 +$as_echo_n "checking for $2... " >&6; } +if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <$2> +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + eval "$3=yes" +else + eval "$3=no" +fi +rm -f conftest.err conftest.$ac_ext +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;} + +} # ac_fn_c_check_header_preproc cat >config.log <<_ACEOF This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. @@ -2156,6 +2202,29 @@ fi + +# Check whether --with-aix-soname was given. +if test "${with_aix_soname+set}" = set; then : + withval=$with_aix_soname; case "${host}:${enable_shared}" in + power*-*-aix[5-9]*:yes) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide for shared libgcc" >&5 +$as_echo_n "checking which variant of shared library versioning to provide for shared libgcc... " >&6; } + case ${withval} in + aix|svr4|both) ;; + *) as_fn_error "Unknown argument to --with-aix-soname" "$LINENO" 5;; + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $withval" >&5 +$as_echo "$withval" >&6; } + ;; + *) with_aix_soname=aix ;; + esac + +else + with_aix_soname=aix +fi + + + # Make sure we can run config.sub. $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 || as_fn_error "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5 @@ -2234,9 +2303,15 @@ case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac case "${host}" in # PIC is the default on some targets or must not be used. *-*-darwin*) - # PIC is the default on this platform - # Common symbols not allowed in MH_DYLIB files - PICFLAG=-fno-common + # For darwin, common symbols are not allowed in MH_DYLIB files + case "${CFLAGS}" in + # If we are using a compiler supporting mdynamic-no-pic + # and the option has been tested as safe to add, then cancel + # it here, since the code generated is incompatible with shared + # libs. + *-mdynamic-no-pic*) PICFLAG='-fno-common -mno-dynamic-no-pic' ;; + *) PICFLAG=-fno-common ;; + esac ;; alpha*-dec-osf5*) # PIC is the default. @@ -4055,6 +4130,265 @@ as_fn_arith $ac_cv_sizeof_long_double \* 8 && long_double_type_size=$as_val + +for ac_header in inttypes.h stdint.h stdlib.h ftw.h \ + unistd.h sys/stat.h sys/types.h \ + string.h strings.h memory.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_preproc "$LINENO" "$ac_header" "$as_ac_Header" +eval as_val=\$$as_ac_Header + if test "x$as_val" = x""yes; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi +done + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5 +$as_echo_n "checking for grep that handles long lines and -e... " >&6; } +if test "${ac_cv_path_GREP+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + if test -z "$GREP"; then + ac_path_GREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in grep ggrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext" + { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue +# Check for GNU ac_path_GREP and select it if it is found. + # Check for GNU $ac_path_GREP +case `"$ac_path_GREP" --version 2>&1` in +*GNU*) + ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'GREP' >> "conftest.nl" + "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_GREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_GREP="$ac_path_GREP" + ac_path_GREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_GREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_GREP"; then + as_fn_error "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_GREP=$GREP +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5 +$as_echo "$ac_cv_path_GREP" >&6; } + GREP="$ac_cv_path_GREP" + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5 +$as_echo_n "checking for egrep... " >&6; } +if test "${ac_cv_path_EGREP+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + if echo a | $GREP -E '(a|b)' >/dev/null 2>&1 + then ac_cv_path_EGREP="$GREP -E" + else + if test -z "$EGREP"; then + ac_path_EGREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in egrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext" + { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue +# Check for GNU ac_path_EGREP and select it if it is found. + # Check for GNU $ac_path_EGREP +case `"$ac_path_EGREP" --version 2>&1` in +*GNU*) + ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'EGREP' >> "conftest.nl" + "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_EGREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_EGREP="$ac_path_EGREP" + ac_path_EGREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_EGREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_EGREP"; then + as_fn_error "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_EGREP=$EGREP +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5 +$as_echo "$ac_cv_path_EGREP" >&6; } + EGREP="$ac_cv_path_EGREP" + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 +$as_echo_n "checking for ANSI C header files... " >&6; } +if test "${ac_cv_header_stdc+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <float.h> + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_header_stdc=yes +else + ac_cv_header_stdc=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <string.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdlib.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then : + : +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <ctype.h> +#include <stdlib.h> +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + return 2; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + +else + ac_cv_header_stdc=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5 +$as_echo "$ac_cv_header_stdc" >&6; } +if test $ac_cv_header_stdc = yes; then + +$as_echo "#define STDC_HEADERS 1" >>confdefs.h + +fi + + # Check for decimal float support. { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether decimal floating point is supported" >&5 $as_echo_n "checking whether decimal floating point is supported... " >&6; } @@ -4270,6 +4604,22 @@ no) ;; esac +# Check whether --enable-explicit-exception-frame-registration was given. +if test "${enable_explicit_exception_frame_registration+set}" = set; then : + enableval=$enable_explicit_exception_frame_registration; +force_explicit_eh_registry= +if test "$enable_explicit_exception_frame_registration" = yes; then + if test "$enable_sjlj_exceptions" = yes; then + as_fn_error "Can't enable both of --enable-sjlj-exceptions + and --enable-explicit-exception-frame-registration" "$LINENO" 5 + fi + force_explicit_eh_registry=-DUSE_EH_FRAME_REGISTRY_ALWAYS +fi + +fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5 $as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; } if test "${acl_cv_prog_gnu_ld+set}" = set; then : @@ -4354,9 +4704,95 @@ fi $as_echo "$libgcc_cv_mips_hard_float" >&6; } esac +# Determine the version of glibc, if any, used on the target. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for target glibc version" >&5 +$as_echo_n "checking for target glibc version... " >&6; } + +# Check whether --with-glibc-version was given. +if test "${with_glibc_version+set}" = set; then : + withval=$with_glibc_version; +if echo "$with_glibc_version" | grep '^[0-9][0-9]*\.[0-9][0-9]*$'; then + glibc_version_major=`echo "$with_glibc_version" | sed -e 's/\..*//'` + glibc_version_minor=`echo "$with_glibc_version" | sed -e 's/.*\.//'` +else + as_fn_error "option --with-glibc-version requires a version number M.N" "$LINENO" 5 +fi +else + +if ac_fn_c_compute_int "$LINENO" "__GLIBC__" "glibc_version_major" "#include <features.h>"; then : + +else + glibc_version_major=0 +fi + +if ac_fn_c_compute_int "$LINENO" "__GLIBC_MINOR__" "glibc_version_minor" "#include <features.h>"; then : + +else + glibc_version_minor=0 +fi + +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibc_version_major.$glibc_version_minor" >&5 +$as_echo "$glibc_version_major.$glibc_version_minor" >&6; } + +# Determine floating-point type for powerpc*-*-linux*. +# Single-precision-only FPRs are not a supported configuration for +# this target, so are not allowed for in this test. +case ${host} in +powerpc*-*-linux*) + cat > conftest.c <<EOF +#ifdef __powerpc64__ +ppc_fp_type=64 +#elif defined _SOFT_FLOAT +ppc_fp_type=soft +#elif defined _SOFT_DOUBLE +ppc_fp_type=e500v1 +#elif defined __NO_FPRS__ +ppc_fp_type=e500v2 +#else +ppc_fp_type=hard +#endif +EOF +eval `${CC-cc} -E conftest.c | grep ppc_fp_type=` +rm -f conftest.c +# glibc 2.19 and later provide all the soft-fp functions, with proper +# interactions with <fenv.h> exception and rounding mode handling, so +# make libgcc's versions into compat symbols if a recent enough glibc +# version is being used. +ppc_fp_compat= +case ${ppc_fp_type} in +soft|e500v1|e500v2) + if test $glibc_version_major -gt 2 \ + || ( test $glibc_version_major -eq 2 \ + && test $glibc_version_minor -ge 19 ); then + ppc_fp_compat="t-softfp-compat" + fi + ;; +esac +;; +esac + # Collect host-machine-specific information. . ${srcdir}/config.host +# Used for constructing correct paths for offload compilers. +accel_dir_suffix= +if test x"$enable_as_accelerator_for" != x; then + accel_dir_suffix=/accel/${target_noncanonical} + case "${target_noncanonical}" in + *-intelmicemul-*) + # In this case we expect offload compiler to be built as native, so we + # need to change install directory for driver to be able to find libgcc. + host_noncanonical=${enable_as_accelerator_for} ;; + esac +fi + + +if test x"$enable_offload_targets" != x; then + extra_parts="${extra_parts} crtoffloadbegin.o crtoffloadend.o" +fi + # Check if Solaris/x86 linker supports ZERO terminator unwind entries. # This is after config.host so we can augment tmake_file. # Link with -nostartfiles -nodefaultlibs since neither are present while @@ -4380,6 +4816,27 @@ EOF ;; esac +# Check if xtensa target is configured for windowed ABI and thus needs to use +# custom unwind code. +# This is after config.host so we can augment tmake_file. +case ${host} in +xtensa*-*) + cat > conftest.c <<EOF + #ifdef __XTENSA_CALL0_ABI__ + #error + #endif +EOF + if { ac_try='${CC-cc} -E -o conftest.i conftest.c 1>&5' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then + tmake_file="${tmake_file} xtensa/t-windowed" + fi + ;; +esac + # Check for visibility support. This is after config.host so that # we can check for asm_hidden_op. { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __attribute__((visibility(\"hidden\")))" >&5 |