Mercurial > hg > CbC > CbC_gcc
diff gcc/configure @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 24 May 2010 12:47:05 +0900 |
| parents | 77e2b8dfacca |
| children | f6334be47118 |
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--- a/gcc/configure Fri Feb 12 23:41:23 2010 +0900 +++ b/gcc/configure Mon May 24 12:47:05 2010 +0900 @@ -671,6 +671,8 @@ slibdir dollar gcc_tooldir +LTO_USE_LIBELF +LTO_BINARY_READER enable_lto MAINT zlibinc @@ -893,6 +895,7 @@ enable_sjlj_exceptions with_system_libunwind enable_secureplt +enable_leading_mingw64_underscores enable_cld enable_win32_registry enable_static @@ -900,6 +903,7 @@ enable_fast_install enable_libtool_lock with_plugin_ld +enable_comdat enable_gnu_unique_object enable_linker_build_id with_long_double_128 @@ -1589,6 +1593,8 @@ --enable-sjlj-exceptions arrange to use setjmp/longjmp exception handling --enable-secureplt enable -msecure-plt by default for PowerPC + --enable-leading-mingw64-underscores + Enable leading underscores on 64 bit mingw targets --enable-cld enable -mcld by default for 32bit x86 --disable-win32-registry disable lookup of installation paths in the @@ -1602,6 +1608,7 @@ --enable-fast-install[=PKGS] optimize for fast installation [default=yes] --disable-libtool-lock avoid locking (might break parallel builds) + --enable-comdat enable COMDAT group support --enable-gnu-unique-object enable the use of the @gnu_unique_object ELF extension on glibc systems --enable-linker-build-id @@ -8424,6 +8431,59 @@ done +save_CPPFLAGS="$CPPFLAGS" +save_LIBS="$LIBS" +LIBS="$LIBS $LIBELFLIBS" +for ac_func in elf_getshdrstrndx +do : + ac_fn_c_check_func "$LINENO" "elf_getshdrstrndx" "ac_cv_func_elf_getshdrstrndx" +if test "x$ac_cv_func_elf_getshdrstrndx" = x""yes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_ELF_GETSHDRSTRNDX 1 +_ACEOF + +else + for ac_func in elf_getshstrndx +do : + ac_fn_c_check_func "$LINENO" "elf_getshstrndx" "ac_cv_func_elf_getshstrndx" +if test "x$ac_cv_func_elf_getshstrndx" = x""yes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_ELF_GETSHSTRNDX 1 +_ACEOF + if test "$cross_compiling" = yes; then : + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error "cannot run test program while cross compiling +See \`config.log' for more details." "$LINENO" 5; } +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdlib.h> +#include <libelf.h> +int main() +{ + return elf_getshstrndx (NULL, 0) == 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + +$as_echo "#define HAVE_ELF_GETSHSTRNDX_GABI 1" >>confdefs.h + +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +done + + +fi +done + +LIBS="$save_LIBS" +CPPFLAGS="$save_CPPFLAGS" + if test x$ac_cv_func_mbstowcs = xyes; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether mbstowcs works" >&5 $as_echo_n "checking whether mbstowcs works... " >&6; } @@ -10628,6 +10688,17 @@ fi +# Check whether --enable-leading-mingw64-underscores was given. +if test "${enable_leading_mingw64_underscores+set}" = set; then : + enableval=$enable_leading_mingw64_underscores; +fi + +if test x"$enable_leading_mingw64_underscores" = xyes ; then : + +$as_echo "#define USE_MINGW64_LEADING_UNDERSCORES 1" >>confdefs.h + +fi + # Check whether --enable-cld was given. if test "${enable_cld+set}" = set; then : enableval=$enable_cld; @@ -17037,7 +17108,7 @@ lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 17040 "configure" +#line 17111 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -17143,7 +17214,7 @@ lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 17146 "configure" +#line 17217 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -20609,6 +20680,19 @@ _ACEOF +# Check to see if we are using gold instead of ld +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using gold" >&5 +$as_echo_n "checking whether we are using gold... " >&6; } +ld_is_gold=no +if test x$gcc_cv_ld != x; then + if $gcc_cv_ld --version 2>/dev/null | sed 1q \ + | grep "GNU gold" > /dev/null; then + ld_is_gold=yes + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_is_gold" >&5 +$as_echo "$ld_is_gold" >&6; } + ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld case "$ORIGINAL_LD_FOR_TARGET" in @@ -21174,7 +21258,35 @@ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; } then - gcc_cv_as_hidden=yes + +# Solaris 9/x86 as incorrectly emits an alias for a hidden symbol with +# STV_HIDDEN, so disable .hidden support if so. +case "${target}" in + i?86-*-solaris2*) + if test x$gcc_cv_as != x && test x$gcc_cv_objdump != x; then + cat > conftest.s <<EOF +.globl hidden + .hidden hidden +hidden: +.globl default + .set default,hidden +EOF + if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \ + && $gcc_cv_objdump -t conftest.o 2>/dev/null | \ + grep '\.hidden default' > /dev/null; then + gcc_cv_as_hidden=no + else + gcc_cv_as_hidden=yes + fi + else + # Assume bug is present if objdump is missing. + gcc_cv_as_hidden=no + fi + ;; + *) + gcc_cv_as_hidden=yes + ;; +esac else echo "configure: failed program was" >&5 cat conftest.s >&5 @@ -21188,13 +21300,36 @@ if test $in_tree_ld != yes ; then ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` - if echo "$ld_ver" | grep GNU > /dev/null; then + if test x"$ld_is_gold" = xyes; then + gcc_cv_ld_hidden=yes + elif echo "$ld_ver" | grep GNU > /dev/null; then ld_vers=`echo $ld_ver | sed -n \ -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'` ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` + else + case "${target}" in + *-*-solaris2*) + # + # Solaris 2 ld -V output looks like this for a regular version: + # + # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1699 + # + # but test versions add stuff at the end: + # + # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1701:onnv-ab196087-6931056-03/25/10 + # + ld_ver=`$gcc_cv_ld -V 2>&1` + if echo "$ld_ver" | grep 'Solaris Link Editors' > /dev/null; then + ld_vers=`echo $ld_ver | sed -n \ + -e 's,^.*: 5\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\1,p'` + ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` + ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` + fi + ;; + esac fi fi @@ -21236,6 +21371,8 @@ gcc_cv_ld_hidden=yes ;; *-*-solaris2.9* | *-*-solaris2.1[0-9]*) + # Support for .hidden in Sun ld appeared in Solaris 9 FCS, but + # .symbolic was only added in Solaris 9 12/02. gcc_cv_ld_hidden=yes ;; *) @@ -21386,7 +21523,23 @@ sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then gcc_cv_as_cfi_directive=no else - gcc_cv_as_cfi_directive=yes + case "$target" in + i?86-*-solaris2.1[0-9]*) + # On Solaris/x86, make sure that GCC and gas agree on using + # read-only .eh_frame sections for 64-bit. + if $gcc_cv_as --64 -o conftest.o conftest.s > /dev/null 2>&1 && \ + $gcc_cv_objdump -h conftest.o 2>/dev/null | \ + sed -e /.eh_frame/!d -e N | \ + grep READONLY > /dev/null; then + gcc_cv_as_cfi_directive=yes + else + gcc_cv_as_cfi_directive=no + fi + ;; + *) + gcc_cv_as_cfi_directive=yes + ;; + esac fi else # no objdump, err on the side of caution @@ -21421,7 +21574,7 @@ echo ' .text .cfi_startproc .cfi_adjust_cfa_offset 64 - .skip 512, 0 + .skip 75040, 0 .cfi_adjust_cfa_offset 128 .cfi_endproc' > conftest.s if { ac_try='$gcc_cv_as $gcc_cv_as_flags -o conftest.o conftest.s >&5' @@ -21433,7 +21586,7 @@ then if $gcc_cv_readelf -wf conftest.o 2>/dev/null \ - | grep 'DW_CFA_advance_loc[12]:[ ][ ]*512[ ]' >/dev/null; then + | grep 'DW_CFA_advance_loc[24]:[ ][ ]*75040[ ]' >/dev/null; then gcc_cv_as_cfi_advance_working=yes fi @@ -21769,13 +21922,15 @@ $as_echo "$gcc_cv_as_comdat_group_percent" >&6; } fi -if test $in_tree_ld = yes ; then +if test x"$ld_is_gold" = xyes; then + comdat_group=yes +elif test $in_tree_ld = yes ; then comdat_group=no if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ && test $in_tree_ld_is_elf = yes; then comdat_group=yes fi -elif test x"$ld_vers" != x; then +elif echo "$ld_ver" | grep GNU > /dev/null; then comdat_group=yes if test 0"$ld_date" -lt 20050308; then if test -n "$ld_date"; then @@ -21788,9 +21943,32 @@ fi fi else - # assume linkers other than GNU ld don't support COMDAT group - comdat_group=no -fi + case "${target}" in + *-*-solaris2.1[1-9]*) + # Sun ld has COMDAT group support since Solaris 9, but it doesn't + # interoperate with GNU as until Solaris 11 build 130, i.e. ld + # version 1.688. + # + # FIXME: Maybe need to refine later when COMDAT group support with + # Sun as is implemented. + if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 1688; then + comdat_group=yes + else + comdat_group=no + fi + ;; + *) + # Assume linkers other than GNU ld don't support COMDAT group. + comdat_group=no + ;; + esac +fi +# Allow overriding the automatic COMDAT group tests above. +# Check whether --enable-comdat was given. +if test "${enable_comdat+set}" = set; then : + enableval=$enable_comdat; comdat_group="$enable_comdat" +fi + if test $comdat_group = no; then gcc_cv_as_comdat_group=no gcc_cv_as_comdat_group_percent=no @@ -21930,25 +22108,53 @@ tls_first_minor=17 ;; i[34567]86-*-*) - conftest_s=' - .section ".tdata","awT",@progbits + case "$target" in + i[34567]86-*-solaris2.[89]*) + # TLS was introduced in the Solaris 9 4/04 release but + # we do not enable it by default on Solaris 9 either. + if test "x$enable_tls" = xyes ; then + on_solaris=yes + else + enable_tls=no; + fi + ;; + i[34567]86-*-solaris2.*) + on_solaris=yes + ;; + *) + on_solaris=no + ;; + esac + if test x$on_solaris = xyes && test x$gas_flag = xno; then + conftest_s=' + .section .tdata,"awt",@progbits' + tls_first_major=0 + tls_first_minor=0 + +$as_echo "#define TLS_SECTION_ASM_FLAG 't'" >>confdefs.h + + else + conftest_s=' + .section ".tdata","awT",@progbits' + tls_first_major=2 + tls_first_minor=14 + tls_as_opt="--fatal-warnings" + fi + conftest_s="$conftest_s foo: .long 25 .text movl %gs:0, %eax - leal foo@TLSGD(,%ebx,1), %eax - leal foo@TLSLDM(%ebx), %eax - leal foo@DTPOFF(%eax), %edx - movl foo@GOTTPOFF(%ebx), %eax - subl foo@GOTTPOFF(%ebx), %eax - addl foo@GOTNTPOFF(%ebx), %eax - movl foo@INDNTPOFF, %eax - movl $foo@TPOFF, %eax - subl $foo@TPOFF, %eax - leal foo@NTPOFF(%ecx), %eax' - tls_first_major=2 - tls_first_minor=14 - tls_as_opt=--fatal-warnings - ;; + leal foo@tlsgd(,%ebx,1), %eax + leal foo@tlsldm(%ebx), %eax + leal foo@dtpoff(%eax), %edx + movl foo@gottpoff(%ebx), %eax + subl foo@gottpoff(%ebx), %eax + addl foo@gotntpoff(%ebx), %eax + movl foo@indntpoff, %eax + movl \$foo@tpoff, %eax + subl \$foo@tpoff, %eax + leal foo@ntpoff(%ecx), %eax" + ;; x86_64-*-*) conftest_s=' .section ".tdata","awT",@progbits @@ -22128,7 +22334,7 @@ ;; sparc*-*-*) case "$target" in - sparc*-sun-solaris2.[56789]*) + sparc*-sun-solaris2.[89]*) # TLS was introduced in the Solaris 9 4/04 release but # we do not enable it by default on Solaris 9 either. if test "x$enable_tls" = xyes ; then @@ -22491,6 +22697,58 @@ fi + { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for GOTDATA_OP relocs" >&5 +$as_echo_n "checking assembler for GOTDATA_OP relocs... " >&6; } +if test "${gcc_cv_as_sparc_gotdata_op+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + gcc_cv_as_sparc_gotdata_op=no + if test x$gcc_cv_as != x; then + echo '.text +foo: + nop +bar: + sethi %gdop_hix22(foo), %g1 + xor %g1, %gdop_lox10(foo), %g1 + ld [%l7 + %g1], %g2, %gdop(foo)' > conftest.s + if { ac_try='$gcc_cv_as $gcc_cv_as_flags -K PIC -o conftest.o conftest.s >&5' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; } + then + if test x$gcc_cv_ld != x \ + && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then + if $gcc_cv_ld -v | grep GNU >/dev/null 2>&1; then + if test x$gcc_cv_objdump != x; then + if $gcc_cv_objdump -s -j .text conftest 2> /dev/null \ + | grep ' 03000004 82186004 c405c001'> /dev/null 2>&1; then + gcc_cv_as_sparc_gotdata_op=no + else + gcc_cv_as_sparc_gotdata_op=yes + fi + fi + else + gcc_cv_as_sparc_gotdata_op=yes + fi + fi + rm -f conftest + else + echo "configure: failed program was" >&5 + cat conftest.s >&5 + fi + rm -f conftest.o conftest.s + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_sparc_gotdata_op" >&5 +$as_echo "$gcc_cv_as_sparc_gotdata_op" >&6; } +if test $gcc_cv_as_sparc_gotdata_op = yes; then + +$as_echo "#define HAVE_AS_SPARC_GOTDATA_OP 1" >>confdefs.h + +fi + { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for unaligned pcrel relocs" >&5 $as_echo_n "checking assembler for unaligned pcrel relocs... " >&6; } if test "${gcc_cv_as_sparc_ua_pcrel+set}" = set; then : @@ -22730,6 +22988,48 @@ $as_echo "#define HAVE_GAS_PE_SECREL32_RELOC 1" >>confdefs.h fi + # Test if the assembler supports the extended form of the .section + # directive that specifies section alignment. LTO support uses this, + # but normally only after installation, so we warn but don't fail the + # configure if LTO is enabled but the assembler does not support it. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .section with alignment" >&5 +$as_echo_n "checking assembler for .section with alignment... " >&6; } +if test "${gcc_cv_as_section_has_align+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + gcc_cv_as_section_has_align=no + if test $in_tree_gas = yes; then + if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 20 \) \* 1000 + 1` + then gcc_cv_as_section_has_align=yes +fi + elif test x$gcc_cv_as != x; then + echo '.section lto_test,"dr0"' > conftest.s + if { ac_try='$gcc_cv_as $gcc_cv_as_flags -fatal-warnings -o conftest.o conftest.s >&5' + { { eval echo "\"\$as_me\":${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 + gcc_cv_as_section_has_align=yes + else + echo "configure: failed program was" >&5 + cat conftest.s >&5 + fi + rm -f conftest.o conftest.s + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_section_has_align" >&5 +$as_echo "$gcc_cv_as_section_has_align" >&6; } + + if test x$gcc_cv_as_section_has_align != xyes; then + case ",$enable_languages," in + *,lto,*) + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded." >&5 +$as_echo "$as_me: WARNING: LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded." >&2;} + ;; + esac + fi ;; esac @@ -22857,6 +23157,37 @@ fi + { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .quad directive" >&5 +$as_echo_n "checking assembler for .quad directive... " >&6; } +if test "${gcc_cv_as_ix86_quad+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + gcc_cv_as_ix86_quad=no + if test x$gcc_cv_as != x; then + echo '.quad 0' > conftest.s + if { ac_try='$gcc_cv_as $gcc_cv_as_flags -o conftest.o conftest.s >&5' + { { eval echo "\"\$as_me\":${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 + gcc_cv_as_ix86_quad=yes + else + echo "configure: failed program was" >&5 + cat conftest.s >&5 + fi + rm -f conftest.o conftest.s + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_ix86_quad" >&5 +$as_echo "$gcc_cv_as_ix86_quad" >&6; } +if test $gcc_cv_as_ix86_quad = yes; then + +$as_echo "#define HAVE_AS_IX86_QUAD 1" >>confdefs.h + +fi + { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for sahf mnemonic" >&5 $as_echo_n "checking assembler for sahf mnemonic... " >&6; } if test "${gcc_cv_as_ix86_sahf+set}" = set; then : @@ -22864,7 +23195,8 @@ else gcc_cv_as_ix86_sahf=no if test x$gcc_cv_as != x; then - echo 'sahf' > conftest.s + echo '.code64 + sahf' > conftest.s if { ac_try='$gcc_cv_as $gcc_cv_as_flags -o conftest.o conftest.s >&5' { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 (eval $ac_try) 2>&5 @@ -22956,7 +23288,7 @@ fi - # This one is used unconditionally by i386.[ch]; it is to be defined + # These two are used unconditionally by i386.[ch]; it is to be defined # to 1 if the feature is present, 0 otherwise. { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for GOTOFF in data" >&5 $as_echo_n "checking assembler for GOTOFF in data... " >&6; } @@ -22997,6 +23329,40 @@ #define HAVE_AS_GOTOFF_IN_DATA `if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi` _ACEOF + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for rep and lock prefix" >&5 +$as_echo_n "checking assembler for rep and lock prefix... " >&6; } +if test "${gcc_cv_as_ix86_rep_lock_prefix+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + gcc_cv_as_ix86_rep_lock_prefix=no + if test x$gcc_cv_as != x; then + echo 'rep movsl + lock orl $0, (%esp)' > conftest.s + if { ac_try='$gcc_cv_as $gcc_cv_as_flags -o conftest.o conftest.s >&5' + { { eval echo "\"\$as_me\":${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 + gcc_cv_as_ix86_rep_lock_prefix=yes + else + echo "configure: failed program was" >&5 + cat conftest.s >&5 + fi + rm -f conftest.o conftest.s + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_ix86_rep_lock_prefix" >&5 +$as_echo "$gcc_cv_as_ix86_rep_lock_prefix" >&6; } + + +cat >>confdefs.h <<_ACEOF +#define HAVE_AS_IX86_REP_LOCK_PREFIX `if test $gcc_cv_as_ix86_rep_lock_prefix = yes; then echo 1; else echo 0; fi` +_ACEOF + + ;; ia64*-*-*) @@ -23630,6 +23996,50 @@ $as_echo "#define HAVE_AS_TLS_MARKERS 1" >>confdefs.h fi + + case $target in + *-*-aix*) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .ref support" >&5 +$as_echo_n "checking assembler for .ref support... " >&6; } +if test "${gcc_cv_as_aix_ref+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + gcc_cv_as_aix_ref=no + if test $in_tree_gas = yes; then + if test $gcc_cv_gas_vers -ge `expr \( \( 2.21.0 \* 1000 \) + gcc_cv_as_aix_ref=yes \) \* 1000 + ` + then : +fi + elif test x$gcc_cv_as != x; then + echo ' .csect stuff[rw] + stuff: + .long 1 + .extern sym + .ref sym + ' > conftest.s + if { ac_try='$gcc_cv_as $gcc_cv_as_flags -o conftest.o conftest.s >&5' + { { eval echo "\"\$as_me\":${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 + gcc_cv_as_aix_ref=yes + else + echo "configure: failed program was" >&5 + cat conftest.s >&5 + fi + rm -f conftest.o conftest.s + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_aix_ref" >&5 +$as_echo "$gcc_cv_as_aix_ref" >&6; } +if test $gcc_cv_as_aix_ref = yes; then + +$as_echo "#define HAVE_AS_REF 1" >>confdefs.h + +fi + ;; + esac ;; mips*-*-*) @@ -24176,9 +24586,9 @@ if test $gcc_cv_as_gnu_unique_object = yes; then # Also check for ld.so support, i.e. glibc 2.11 or higher. if test x$host = x$build -a x$host = x$target && - glibcver=`ldd --version 2>/dev/null`; then - glibcmajor=`expr "$glibcver" : "ldd (GNU libc) \([0-9]*\)"` - glibcminor=`expr "$glibcver" : "ldd (GNU libc) [0-9]*\.\([0-9]*\)"` + glibcver=`ldd --version 2>/dev/null | sed 's/.* //;q'`; then + glibcmajor=`expr "$glibcver" : "\([0-9]*\)"` + glibcminor=`expr "$glibcver" : "[2-9]*\.\([0-9]*\)"` glibcnum=`expr $glibcmajor \* 1000 + $glibcminor` if test "$glibcnum" -ge 2011 ; then enable_gnu_unique_object=yes @@ -24307,7 +24717,8 @@ if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | grep "gc-sections option ignored" > /dev/null; then gcc_cv_ld_eh_gc_sections=no - elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then + elif $gcc_cv_objdump -h conftest 2> /dev/null \ + | grep gcc_except_table > /dev/null; then gcc_cv_ld_eh_gc_sections=yes # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections. if test x$gcc_cv_as_comdat_group != xyes; then @@ -24334,7 +24745,8 @@ if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | grep "gc-sections option ignored" > /dev/null; then gcc_cv_ld_eh_gc_sections=no - elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then + elif $gcc_cv_objdump -h conftest 2> /dev/null \ + | grep gcc_except_table > /dev/null; then gcc_cv_ld_eh_gc_sections=yes fi fi @@ -24526,7 +24938,9 @@ case "$target" in *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu) if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then - if test "x$with_sysroot" = x; then + if test "x$with_headers" != x; then + glibc_header_dir=$with_headers + elif test "x$with_sysroot" = x; then glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include" elif test "x$with_build_sysroot" != "x"; then glibc_header_dir="${with_build_sysroot}/usr/include" @@ -24820,6 +25234,17 @@ enable_lto=yes + # LTO needs to speak the platform's object file format, and has a + # number of implementations of the required binary file access APIs. + # ELF is the most common, and default. We only link libelf if ELF + # is indeed the selected format. + LTO_BINARY_READER=${lto_binary_reader} + LTO_USE_LIBELF=-lelf + if test "x$lto_binary_reader" != "xlto-elf" ; then + LTO_USE_LIBELF= + fi + + ;; *) ;; esac @@ -24842,8 +25267,8 @@ rm -f Make-hooks touch Make-hooks target_list="all.cross start.encap rest.encap tags \ - install-common install-man install-info install-pdf dvi pdf \ - html uninstall info man srcextra srcman srcinfo \ + install-common install-man install-info install-pdf install-html dvi \ + pdf html uninstall info man srcextra srcman srcinfo \ mostlyclean clean distclean maintainer-clean install-plugin" for t in $target_list @@ -25017,42 +25442,38 @@ pluginlibs= if test x"$enable_plugin" = x"yes"; then - # Check that the host supports -rdynamic and -ldl - have_rdynamic=no - have_dl=no - saved_LDFLAGS="$LDFLAGS" - saved_LIBS="$LIBS" - LIBS= - - # Check -rdynamic - LDFLAGS="$LDFLAGS -rdynamic" - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -rdynamic" >&5 + + case "${host}" in + *-*-darwin*) + export_sym_check="$gcc_cv_nm -g" + ;; + *) + export_sym_check="$gcc_cv_objdump -T" + ;; + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for exported symbols" >&5 +$as_echo_n "checking for exported symbols... " >&6; } + echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c + ${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest > /dev/null 2>&1 + if $export_sym_check conftest | grep foobar > /dev/null; then + : # No need to use a flag + else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -rdynamic" >&5 $as_echo_n "checking for -rdynamic... " >&6; } - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ - -int -main () -{ -return 0; - ; - return 0; -} -_ACEOF -if ac_fn_c_try_link "$LINENO"; then : - { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 -$as_echo "yes" >&6; }; have_rdynamic=yes -else - { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 -$as_echo "no" >&6; } -fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext - if test x"$have_rdynamic" = x"yes" ; then - pluginlibs="-rdynamic" + ${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1 + if $export_sym_check conftest | grep foobar > /dev/null; then + plugin_rdynamic=yes + pluginlibs="-rdynamic" + else + plugin_rdynamic=no + enable_plugin=no + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $plugin_rdynamic" >&5 +$as_echo "$plugin_rdynamic" >&6; } fi # Check -ldl + saved_LIBS="$LIBS" { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dlopen" >&5 $as_echo_n "checking for library containing dlopen... " >&6; } if test "${ac_cv_search_dlopen+set}" = set; then : @@ -25112,9 +25533,18 @@ if test x"$ac_cv_search_dlopen" = x"-ldl"; then pluginlibs="$pluginlibs -ldl" fi + LIBS="$saved_LIBS" # Check that we can build shared objects with -fPIC -shared - LDFLAGS="$LDFLAGS -fPIC -shared" + saved_LDFLAGS="$LDFLAGS" + case "${host}" in + *-*-darwin*) + LDFLAGS="$LDFLAGS -fPIC -shared -undefined dynamic_lookup" + ;; + *) + LDFLAGS="$LDFLAGS -fPIC -shared" + ;; + esac { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fPIC -shared" >&5 $as_echo_n "checking for -fPIC -shared... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext @@ -25141,6 +25571,7 @@ pluginlibs= enable_plugin=no fi + LDFLAGS="$saved_LDFLAGS" # If plugin support had been requested but not available, fail. if test x"$enable_plugin" = x"no" ; then @@ -25150,9 +25581,6 @@ -fPIC, -shared, -ldl and -rdynamic." "$LINENO" 5 fi fi - - LDFLAGS="$saved_LDFLAGS" - LIBS="$saved_LIBS" fi