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libgo/configure: Fixes for Solaris 8 and cross-compilation.

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From Rainer Orth.

From-SVN: r184092
This commit is contained in:
Ian Lance Taylor 2012-02-10 14:07:44 +00:00
parent 0f3b7e9a44
commit e6c5817dca
3 changed files with 58 additions and 8 deletions
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3
libgo/config.h.in
View File

@ -198,6 +198,9 @@
/* Define if setcontext clobbers TLS variables */
#undef SETCONTEXT_CLOBBERS_TLS
/* The size of `void *', as computed by sizeof. */
#undef SIZEOF_VOID_P
/* Define to 1 if you have the ANSI C header files. */
#undef STDC_HEADERS

48
libgo/configure vendored
View File

@ -14818,12 +14818,51 @@ $as_echo_n "checking whether setcontext clobbers TLS variables... " >&6; }
if test "${libgo_cv_lib_setcontext_clobbers_tls+set}" = set; then :
$as_echo_n "(cached) " >&6
else
LIBS_hold="$LIBS"
CFLAGS_hold="$CFLAGS"
CFLAGS="$PTHREAD_CFLAGS"
LIBS_hold="$LIBS"
LIBS="$LIBS $PTHREAD_LIBS"
# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5
$as_echo_n "checking size of void *... " >&6; }
if test "${ac_cv_sizeof_void_p+set}" = set; then :
$as_echo_n "(cached) " >&6
else
if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p" "$ac_includes_default"; then :
else
if test "$ac_cv_type_void_p" = yes; then
{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
{ as_fn_set_status 77
as_fn_error "cannot compute sizeof (void *)
See \`config.log' for more details." "$LINENO" 5; }; }
else
ac_cv_sizeof_void_p=0
fi
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5
$as_echo "$ac_cv_sizeof_void_p" >&6; }
cat >>confdefs.h <<_ACEOF
#define SIZEOF_VOID_P $ac_cv_sizeof_void_p
_ACEOF
as_fn_arith $ac_cv_sizeof_void_p \* 8 && ptr_type_size=$as_val
if test "$cross_compiling" = yes; then :
case "$target" in
x86_64*-*-solaris2.10) libgo_cv_lib_setcontext_clobbers_tls=yes ;;
*) libgo_cv_lib_setcontext_clobbers_tls=no ;;
case "$target:$ptr_type_size" in
i?86-*-solaris2.1[01]:64 | x86_64*-*-solaris2.1[01]:64)
libgo_cv_lib_setcontext_clobbers_tls=yes ;;
*)
libgo_cv_lib_setcontext_clobbers_tls=no ;;
esac
else
@ -14900,6 +14939,7 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
CFLAGS="$CFLAGS_hold"
LIBS="$LIBS_hold"
fi

15
libgo/configure.ac
View File

@ -584,8 +584,12 @@ fi
dnl See whether setcontext changes the value of TLS variables.
AC_CACHE_CHECK([whether setcontext clobbers TLS variables],
[libgo_cv_lib_setcontext_clobbers_tls],
[LIBS_hold="$LIBS"
[CFLAGS_hold="$CFLAGS"
CFLAGS="$PTHREAD_CFLAGS"
LIBS_hold="$LIBS"
LIBS="$LIBS $PTHREAD_LIBS"
AC_CHECK_SIZEOF([void *])
AS_VAR_ARITH([ptr_type_size], [$ac_cv_sizeof_void_p \* 8])
AC_RUN_IFELSE(
[AC_LANG_SOURCE([
#include <pthread.h>
@ -650,11 +654,14 @@ main ()
])],
[libgo_cv_lib_setcontext_clobbers_tls=no],
[libgo_cv_lib_setcontext_clobbers_tls=yes],
[case "$target" in
x86_64*-*-solaris2.10) libgo_cv_lib_setcontext_clobbers_tls=yes ;;
*) libgo_cv_lib_setcontext_clobbers_tls=no ;;
[case "$target:$ptr_type_size" in
i?86-*-solaris2.1[[01]]:64 | x86_64*-*-solaris2.1[[01]]:64)
libgo_cv_lib_setcontext_clobbers_tls=yes ;;
*)
libgo_cv_lib_setcontext_clobbers_tls=no ;;
esac
])
CFLAGS="$CFLAGS_hold"
LIBS="$LIBS_hold"
])
if test "$libgo_cv_lib_setcontext_clobbers_tls" = "yes"; then