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authorjan.nijtmans <nijtmans@users.sourceforge.net>2012-04-02 17:48:50 (GMT)
committerjan.nijtmans <nijtmans@users.sourceforge.net>2012-04-02 17:48:50 (GMT)
commitabcb34111ac1a8d9dc56809446c11d4126c87beb (patch)
tree6d94304411477484d5306bb0b0a8d28a46e5ec9b /unix
parent6fb70434886c81f401e6941b84adcfa80454dc39 (diff)
parentf61ecd111ced0ae28cf4b46da371fb0942ad2532 (diff)
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gcc warning: signed-unsigned compare
Diffstat (limited to 'unix')
-rwxr-xr-xunix/configure138
1 files changed, 135 insertions, 3 deletions
diff --git a/unix/configure b/unix/configure
index 5b28fa9..ac2c375 100755
--- a/unix/configure
+++ b/unix/configure
@@ -4890,17 +4890,80 @@ fi
CC_SEARCH_FLAGS=""
LD_SEARCH_FLAGS=""
;;
- CYGWIN_*)
+ CYGWIN_*|MINGW32*)
SHLIB_CFLAGS=""
SHLIB_LD='${CC} -shared'
SHLIB_SUFFIX=".dll"
- DL_OBJS="tclLoadDl.o"
+ DL_OBJS="tclLoadDl.o tclWinError.o"
DL_LIBS="-ldl"
CC_SEARCH_FLAGS=""
LD_SEARCH_FLAGS=""
TCL_NEEDS_EXP_FILE=1
TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.dll.a'
TCL_SHLIB_LD_EXTRAS='-Wl,--out-implib,$@.a'
+ echo "$as_me:$LINENO: checking for Cygwin version of gcc" >&5
+echo $ECHO_N "checking for Cygwin version of gcc... $ECHO_C" >&6
+if test "${ac_cv_cygwin+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+ #ifdef __CYGWIN__
+ #error cygwin
+ #endif
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ 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_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_cygwin=no
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_cygwin=yes
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_cygwin" >&5
+echo "${ECHO_T}$ac_cv_cygwin" >&6
+ if test "$ac_cv_cygwin" = "no"; then
+ { { echo "$as_me:$LINENO: error: ${CC} is not a cygwin compiler." >&5
+echo "$as_me: error: ${CC} is not a cygwin compiler." >&2;}
+ { (exit 1); exit 1; }; }
+ fi
;;
dgux*)
SHLIB_CFLAGS="-K PIC"
@@ -6870,7 +6933,7 @@ fi
case $system in
AIX-*) ;;
BSD/OS*) ;;
- CYGWIN_*) ;;
+ CYGWIN_*|MINGW32_*) ;;
IRIX*) ;;
NetBSD-*|FreeBSD-*|OpenBSD-*) ;;
Darwin-*) ;;
@@ -6968,6 +7031,75 @@ fi
+ # See if the compiler supports casting to a union type.
+ # This is used to stop gcc from printing a compiler
+ # warning when initializing a union member.
+
+ echo "$as_me:$LINENO: checking for cast to union support" >&5
+echo $ECHO_N "checking for cast to union support... $ECHO_C" >&6
+if test "${tcl_cv_cast_to_union+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ union foo { int i; double d; };
+ union foo f = (union foo) (int) 0;
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ 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_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ tcl_cv_cast_to_union=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+tcl_cv_cast_to_union=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+echo "$as_me:$LINENO: result: $tcl_cv_cast_to_union" >&5
+echo "${ECHO_T}$tcl_cv_cast_to_union" >&6
+ if test "$tcl_cv_cast_to_union" = "yes"; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_CAST_TO_UNION 1
+_ACEOF
+
+ fi
+
# FIXME: This subst was left in only because the TCL_DL_LIBS
# entry in tclConfig.sh uses it. It is not clear why someone
# would use TCL_DL_LIBS instead of TCL_LIBS.