AC_SUBST(TCLTK_PATH)
fi
fi
+AC_CHECK_PROGS(ASCIIDOC, [asciidoc])
+if test -n "$ASCIIDOC"; then
+ AC_MSG_CHECKING([for asciidoc version])
+ asciidoc_version=`$ASCIIDOC --version 2>&1`
+ case "${asciidoc_version}" in
+ asciidoc' '8*)
+ ASCIIDOC8=YesPlease
+ AC_MSG_RESULT([${asciidoc_version} > 7])
+ ;;
+ asciidoc' '7*)
+ ASCIIDOC8=
+ AC_MSG_RESULT([${asciidoc_version}])
+ ;;
+ *)
+ ASCIIDOC8=
+ AC_MSG_RESULT([${asciidoc_version} (unknown)])
+ ;;
+ esac
+fi
+AC_SUBST(ASCIIDOC8)
+
## Checks for libraries.
AC_MSG_NOTICE([CHECKS for libraries])
## Checks for header files.
+AC_MSG_NOTICE([CHECKS for header files])
+#
+# Define NO_SYS_SELECT_H if you don't have sys/select.h.
+AC_CHECK_HEADER([sys/select.h],
+[NO_SYS_SELECT_H=],
+[NO_SYS_SELECT_H=UnfortunatelyYes])
+AC_SUBST(NO_SYS_SELECT_H)
+#
+# Define OLD_ICONV if your library has an old iconv(), where the second
+# (input buffer pointer) parameter is declared with type (const char **).
+AC_DEFUN([OLDICONVTEST_SRC], [[
+#include <iconv.h>
+
+extern size_t iconv(iconv_t cd,
+ char **inbuf, size_t *inbytesleft,
+ char **outbuf, size_t *outbytesleft);
+
+int main(void)
+{
+ return 0;
+}
+]])
+AC_MSG_CHECKING([for old iconv()])
+AC_COMPILE_IFELSE(OLDICONVTEST_SRC,
+ [AC_MSG_RESULT([no])],
+ [AC_MSG_RESULT([yes])
+ OLD_ICONV=UnfortunatelyYes])
+AC_SUBST(OLD_ICONV)
## Checks for typedefs, structures, and compiler characteristics.
NO_C99_FORMAT=
fi
AC_SUBST(NO_C99_FORMAT)
+#
+# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds
+# when attempting to read from an fopen'ed directory.
+AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory],
+ [ac_cv_fread_reads_directories],
+[
+AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+ [[char c;
+ FILE *f = fopen(".", "r");
+ return f && fread(&c, 1, 1, f)]])],
+ [ac_cv_fread_reads_directories=no],
+ [ac_cv_fread_reads_directories=yes])
+])
+if test $ac_cv_fread_reads_directories = yes; then
+ FREAD_READS_DIRECTORIES=UnfortunatelyYes
+else
+ FREAD_READS_DIRECTORIES=
+fi
+AC_SUBST(FREAD_READS_DIRECTORIES)
+#
+# Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf()
+# or vsnprintf() return -1 instead of number of characters which would
+# have been written to the final string if enough space had been available.
+AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value],
+ [ac_cv_snprintf_returns_bogus],
+[
+AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
+ #include "stdarg.h"
+
+ int test_vsnprintf(char *str, size_t maxsize, const char *format, ...)
+ {
+ int ret;
+ va_list ap;
+ va_start(ap, format);
+ ret = vsnprintf(str, maxsize, format, ap);
+ va_end(ap);
+ return ret;
+ }],
+ [[char buf[6];
+ if (test_vsnprintf(buf, 3, "%s", "12345") != 5
+ || strcmp(buf, "12")) return 1;
+ if (snprintf(buf, 3, "%s", "12345") != 5
+ || strcmp(buf, "12")) return 1]])],
+ [ac_cv_snprintf_returns_bogus=no],
+ [ac_cv_snprintf_returns_bogus=yes])
+])
+if test $ac_cv_snprintf_returns_bogus = yes; then
+ SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes
+else
+ SNPRINTF_RETURNS_BOGUS=
+fi
+AC_SUBST(SNPRINTF_RETURNS_BOGUS)
## Checks for library functions.
[NO_SETENV=YesPlease])
AC_SUBST(NO_SETENV)
#
+# Define NO_UNSETENV if you don't have unsetenv in the C library.
+AC_CHECK_FUNC(unsetenv,
+[NO_UNSETENV=],
+[NO_UNSETENV=YesPlease])
+AC_SUBST(NO_UNSETENV)
+#
# Define NO_MKDTEMP if you don't have mkdtemp in the C library.
AC_CHECK_FUNC(mkdtemp,
[NO_MKDTEMP=],