[build] better autoconf checks for time and dirent headers
This commit is contained in:
Al
195
configure
vendored
195
configure
vendored
@@ -11970,7 +11970,200 @@ $as_echo "#define STDC_HEADERS 1" >>confdefs.h
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fi
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for ac_header in fcntl.h float.h inttypes.h limits.h locale.h malloc.h memory.h stddef.h stdint.h stdlib.h string.h sys/time.h unistd.h
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether time.h and sys/time.h may both be included" >&5
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$as_echo_n "checking whether time.h and sys/time.h may both be included... " >&6; }
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if ${ac_cv_header_time+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <sys/types.h>
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#include <sys/time.h>
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#include <time.h>
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int
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main ()
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{
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if ((struct tm *) 0)
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return 0;
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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ac_cv_header_time=yes
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else
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ac_cv_header_time=no
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_time" >&5
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$as_echo "$ac_cv_header_time" >&6; }
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if test $ac_cv_header_time = yes; then
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$as_echo "#define TIME_WITH_SYS_TIME 1" >>confdefs.h
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fi
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ac_header_dirent=no
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for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h; do
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as_ac_Header=`$as_echo "ac_cv_header_dirent_$ac_hdr" | $as_tr_sh`
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_hdr that defines DIR" >&5
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$as_echo_n "checking for $ac_hdr that defines DIR... " >&6; }
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if eval \${$as_ac_Header+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <sys/types.h>
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#include <$ac_hdr>
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int
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main ()
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{
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if ((DIR *) 0)
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return 0;
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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eval "$as_ac_Header=yes"
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else
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eval "$as_ac_Header=no"
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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eval ac_res=\$$as_ac_Header
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
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$as_echo "$ac_res" >&6; }
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if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
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cat >>confdefs.h <<_ACEOF
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#define `$as_echo "HAVE_$ac_hdr" | $as_tr_cpp` 1
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_ACEOF
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ac_header_dirent=$ac_hdr; break
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fi
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done
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# Two versions of opendir et al. are in -ldir and -lx on SCO Xenix.
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if test $ac_header_dirent = dirent.h; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing opendir" >&5
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$as_echo_n "checking for library containing opendir... " >&6; }
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if ${ac_cv_search_opendir+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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ac_func_search_save_LIBS=$LIBS
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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/* Override any GCC internal prototype to avoid an error.
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Use char because int might match the return type of a GCC
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builtin and then its argument prototype would still apply. */
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#ifdef __cplusplus
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extern "C"
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#endif
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char opendir ();
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int
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main ()
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{
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return opendir ();
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;
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return 0;
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}
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_ACEOF
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for ac_lib in '' dir; do
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if test -z "$ac_lib"; then
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ac_res="none required"
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else
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ac_res=-l$ac_lib
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LIBS="-l$ac_lib $ac_func_search_save_LIBS"
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fi
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if ac_fn_c_try_link "$LINENO"; then :
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ac_cv_search_opendir=$ac_res
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext
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if ${ac_cv_search_opendir+:} false; then :
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break
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fi
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done
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if ${ac_cv_search_opendir+:} false; then :
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else
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ac_cv_search_opendir=no
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fi
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rm conftest.$ac_ext
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LIBS=$ac_func_search_save_LIBS
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_opendir" >&5
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$as_echo "$ac_cv_search_opendir" >&6; }
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ac_res=$ac_cv_search_opendir
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if test "$ac_res" != no; then :
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test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
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fi
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing opendir" >&5
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$as_echo_n "checking for library containing opendir... " >&6; }
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if ${ac_cv_search_opendir+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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ac_func_search_save_LIBS=$LIBS
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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/* Override any GCC internal prototype to avoid an error.
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Use char because int might match the return type of a GCC
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builtin and then its argument prototype would still apply. */
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#ifdef __cplusplus
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extern "C"
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#endif
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char opendir ();
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int
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main ()
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{
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return opendir ();
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;
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return 0;
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}
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_ACEOF
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for ac_lib in '' x; do
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if test -z "$ac_lib"; then
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ac_res="none required"
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else
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ac_res=-l$ac_lib
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LIBS="-l$ac_lib $ac_func_search_save_LIBS"
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fi
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if ac_fn_c_try_link "$LINENO"; then :
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ac_cv_search_opendir=$ac_res
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext
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if ${ac_cv_search_opendir+:} false; then :
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break
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fi
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done
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if ${ac_cv_search_opendir+:} false; then :
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else
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ac_cv_search_opendir=no
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fi
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rm conftest.$ac_ext
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LIBS=$ac_func_search_save_LIBS
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_opendir" >&5
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$as_echo "$ac_cv_search_opendir" >&6; }
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ac_res=$ac_cv_search_opendir
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if test "$ac_res" != no; then :
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test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
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fi
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fi
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for ac_header in fcntl.h float.h inttypes.h limits.h locale.h malloc.h memory.h stddef.h stdint.h stdlib.h string.h unistd.h
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do :
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as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
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ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
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