kc3-lang/libxml2/m4/ac_try_compile2.m4

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• Hash : 0d467de2
  Author :
  Date : 2022-04-03T19:11:13
  

  Move local Autoconf macros into m4 directory
  

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• m4/ac_try_compile2.m4

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

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