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# ESO_PROG_CC_FLAG(FLAG, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
#-----------------------------------------------------------------
AC_DEFUN([ESO_PROG_CC_FLAG],
[
AC_REQUIRE([AC_PROG_CC])
flag=`echo $1 | sed 'y%.=/+-%___p_%'`
AC_MSG_CHECKING([whether $CC supports -$1])
AC_CACHE_VAL([eso_cv_prog_cc_$flag],
[
eval "eso_cv_prog_cc_$flag=no"
AC_LANG_SAVE
AC_LANG_C
echo 'int main() { return 0; }' >conftest.$ac_ext
try_compile="`$CC -$1 -c conftest.$ac_ext 2>&1`"
if test -z "$try_compile"; then
try_link="`$CC -$1 -o conftest$ac_exeext \
conftest.$ac_ext 2>&1`"
if test -z "$try_link"; then
eval "eso_cv_prog_cc_$flag=yes"
fi
fi
rm -f conftest*
AC_LANG_RESTORE
])
if eval "test \"`echo '$eso_cv_prog_cc_'$flag`\" = yes"; then
AC_MSG_RESULT(yes)
$2
else
AC_MSG_RESULT(no)
$3
fi
])
# ESO_PROG_AR
#------------
# Checks if ar is in the path
AC_DEFUN([ESO_PROG_AR],
[
AC_CHECK_PROG(AR, ar, ar, NONE)
if test x"$AR" = xNONE; then
AC_MSG_ERROR([Cannot find \'ar\'])
fi
])
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