Migrate away from the PrefMetricsService-based device ID in PrefHashCalculator.
[chromium-blink-merge.git] / third_party / libxml / src / acinclude.m4
blob4ff672e154bc518caee68db068f2409847f721f6
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__: \"[$]$1\") 1>&AC_FD_CC; dnl
6 (eval [$]$1) 2>&AC_FD_CC; _out=`eval [$]$1 2>&1` && test "x$_out" = x; }])
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   $3])
21 else
22   echo "configure: failed program was:" >&AC_FD_CC
23   cat conftest.$ac_ext >&AC_FD_CC
24 ifelse([$4], , , [  rm -rf conftest*
25   $4
26 ])dnl
28 rm -f conftest*])