rolled back to 2.9.2 because 2.9.4 doesn't work with XML validator
[platform/upstream/libxml2.git] / acinclude.m4
1 dnl Like AC_TRY_EVAL but also errors out if the compiler generates
2 dnl _any_ output. Some compilers might issue warnings which we want
3 dnl to catch.
4 AC_DEFUN([AC_TRY_EVAL2],
5 [{ (eval echo configure:__oline__: \"[$]$1\") 1>&AS_MESSAGE_LOG_FD; dnl
6 (eval [$]$1) 2>&AS_MESSAGE_LOG_FD; _out=`eval [$]$1 2>&1` && test "x$_out" = x; }])
7
8 dnl Like AC_TRY_COMPILE but calls AC_TRY_EVAL2 instead of AC_TRY_EVAL
9 AC_DEFUN([AC_TRY_COMPILE2],
10 [cat > conftest.$ac_ext <<EOF
11 [#]line __oline__ "configure"
12 #include "confdefs.h"
13 [$1]
14 int main(void) {
15 [$2]
16 ; return 0; }
17 EOF
18 if AC_TRY_EVAL2(ac_compile); then
19   ifelse([$3], , :, [rm -rf conftest*
20   $3])
21 else
22   echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
23   cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD
24 ifelse([$4], , , [  rm -rf conftest*
25   $4
26 ])dnl
27 fi
28 rm -f conftest*])