llvm-6502/projects/sample/autoconf/m4/sanity_check.m4
Daniel Dunbar 2532fa21a9 projects/sample: Import adapted form of current LLVM autoconf/Makefile setup so that projects/sample is standalone and not tied to the LLVM build setup.
- This currently just moves over all of the behavior from LLVM. Eventually all of the configure checks that are directly needed by the LLVM build setup should probably go away, and the project should manage their own configuration checks if necessary.

 - This is the 1st half of this work, the actual Makefile.common hasn't moved over yet. I've tried to stage this in such a way that incremental builds will properly reconfigure for most active developers (the Makefiles don't handle reconfiguring in a perfectly reliable way, and I haven't found an easy way to make them do so).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142456 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18 23:10:47 +00:00

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dnl Check a program for version sanity. The test runs a program, passes it an
dnl argument to make it print out some identification string, and filters that
dnl output with a regular expression. If the output is non-empty, the program
dnl passes the sanity check.
dnl $1 - Name or full path of the program to run
dnl $2 - Argument to pass to print out identification string
dnl $3 - grep RE to match identification string
dnl $4 - set to 1 to make errors only a warning
AC_DEFUN([CHECK_PROGRAM_SANITY],
[
AC_MSG_CHECKING([sanity for program ]$1)
sanity="0"
sanity_path=`which $1 2>/dev/null`
if test "$?" -eq 0 -a -x "$sanity_path" ; then
sanity=`$1 $2 2>&1 | grep "$3"`
if test -z "$sanity" ; then
AC_MSG_RESULT([no])
sanity="0"
if test "$4" -eq 1 ; then
AC_MSG_WARN([Program ]$1[ failed to pass sanity check.])
else
AC_MSG_ERROR([Program ]$1[ failed to pass sanity check.])
fi
else
AC_MSG_RESULT([yes])
sanity="1"
fi
else
AC_MSG_RESULT([not found])
fi
])