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dnl Like AC_TRY_EVAL but also errors out if the compiler generates
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423ecb |
dnl _any_ output. Some compilers might issue warnings which we want
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423ecb |
dnl to catch.
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423ecb |
AC_DEFUN([AC_TRY_EVAL2],
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423ecb |
[{ (eval echo configure:__oline__: \"[$]$1\") 1>&AS_MESSAGE_LOG_FD; dnl
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423ecb |
(eval [$]$1) 2>&AS_MESSAGE_LOG_FD; _out=`eval [$]$1 2>&1` && test "x$_out" = x; }])
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423ecb |
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423ecb |
dnl Like AC_TRY_COMPILE but calls AC_TRY_EVAL2 instead of AC_TRY_EVAL
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423ecb |
AC_DEFUN([AC_TRY_COMPILE2],
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423ecb |
[cat > conftest.$ac_ext <
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423ecb |
[#]line __oline__ "configure"
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#include "confdefs.h"
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423ecb |
[$1]
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423ecb |
int main(void) {
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423ecb |
[$2]
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423ecb |
; return 0; }
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423ecb |
EOF
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423ecb |
if AC_TRY_EVAL2(ac_compile); then
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423ecb |
ifelse([$3], , :, [rm -rf conftest*
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423ecb |
$3])
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423ecb |
else
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423ecb |
echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
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423ecb |
cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD
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423ecb |
ifelse([$4], , , [ rm -rf conftest*
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423ecb |
$4
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423ecb |
])dnl
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423ecb |
fi
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423ecb |
rm -f conftest*])
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