always set the version to 6 if the file is zlib-compressed.
[swftools.git] / m4 / backticks.m4
1 AC_DEFUN(RFX_CHECK_SYSTEM_BACKTICKS,
2 [
3 AC_MSG_CHECKING([whether system() can handle command substitution])
4 AC_TRY_RUN([
5 #include "stdlib.h"
6 int main (int argc, char*argv[])
7 {
8     return system("test `touch config.tmp2`");
9 }
10 ], OK=OK,,CROSSCOMPILE=1)
11
12 if test "x${OK}" = "xOK";then
13     test -f config.tmp2 || OK=
14 fi
15
16 if test "x${CROSSCOMPILE}" = "x1";then
17     OK=OK;
18 fi
19 if test "x${OK}" = "xOK";then
20 rm -f config.tmp2
21 AC_MSG_RESULT(yes)
22 SYSTEM_BACKTICKS=1
23 export SYSTEM_BACKTICKS
24 AC_DEFINE_UNQUOTED(SYSTEM_BACKTICKS, 1)
25 else
26 AC_MSG_RESULT(no)
27 fi
28 ])
29
30