diff options
Diffstat (limited to 'unix/configure')
| -rwxr-xr-x | unix/configure | 105 |
1 files changed, 92 insertions, 13 deletions
diff --git a/unix/configure b/unix/configure index f062a2d..d9d80cc 100755 --- a/unix/configure +++ b/unix/configure @@ -3469,13 +3469,15 @@ fi # It makes compiling go faster. (This is only a performance feature.) #------------------------------------------------------------------------ -if test -z "$no_pipe"; then -if test -n "$GCC"; then - echo "$as_me:$LINENO: checking if the compiler understands -pipe" >&5 +if test -z "$no_pipe" && test -n "$GCC"; then + echo "$as_me:$LINENO: checking if the compiler understands -pipe" >&5 echo $ECHO_N "checking if the compiler understands -pipe... $ECHO_C" >&6 - OLDCC="$CC" - CC="$CC -pipe" - cat >conftest.$ac_ext <<_ACEOF +if test "${tcl_cv_cc_pipe+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + + hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -pipe" + cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext @@ -3512,18 +3514,21 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then - echo "$as_me:$LINENO: result: yes" >&5 -echo "${ECHO_T}yes" >&6 + tcl_cv_cc_pipe=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 -CC="$OLDCC" - echo "$as_me:$LINENO: result: no" >&5 -echo "${ECHO_T}no" >&6 +tcl_cv_cc_pipe=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext + CFLAGS=$hold_cflags fi +echo "$as_me:$LINENO: result: $tcl_cv_cc_pipe" >&5 +echo "${ECHO_T}$tcl_cv_cc_pipe" >&6 + if test $tcl_cv_cc_pipe = yes; then + CFLAGS="$CFLAGS -pipe" + fi fi #------------------------------------------------------------------------ @@ -4619,6 +4624,78 @@ echo "${ECHO_T}$do64bitVIS" >&6 do64bit=yes fi + # Step 0.c: Check if gcc visibility support is available. Do this here so + # that platform specific alternatives can be used below if this fails. + + if test "$GCC" = "yes" ; then + echo "$as_me:$LINENO: checking if gcc supports visibility \"hidden\"" >&5 +echo $ECHO_N "checking if gcc supports visibility \"hidden\"... $ECHO_C" >&6 +if test "${tcl_cv_cc_visibility_hidden+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + + hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror" + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + + extern __attribute__((__visibility__("hidden"))) void f(void); + void f(void) {} +int +main () +{ +f(); + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext conftest$ac_exeext +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest$ac_exeext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + tcl_cv_cc_visibility_hidden=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +tcl_cv_cc_visibility_hidden=no +fi +rm -f conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + CFLAGS=$hold_cflags +fi +echo "$as_me:$LINENO: result: $tcl_cv_cc_visibility_hidden" >&5 +echo "${ECHO_T}$tcl_cv_cc_visibility_hidden" >&6 + if test $tcl_cv_cc_visibility_hidden = yes; then + +cat >>confdefs.h <<\_ACEOF +#define MODULE_SCOPE extern __attribute__((__visibility__("hidden"))) +_ACEOF + + fi + fi + # Step 1: set the variable "system" to hold the name and version number # for the system. @@ -6081,14 +6158,16 @@ _ACEOF fi fi fi + if test "$tcl_cv_cc_visibility_hidden" != yes; then cat >>confdefs.h <<\_ACEOF -#define MAC_OSX_TCL 1 +#define MODULE_SCOPE __private_extern__ _ACEOF + fi cat >>confdefs.h <<\_ACEOF -#define MODULE_SCOPE __private_extern__ +#define MAC_OSX_TCL 1 _ACEOF ;; |