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-rw-r--r--ares/acinclude.m414
1 files changed, 8 insertions, 6 deletions
diff --git a/ares/acinclude.m4 b/ares/acinclude.m4
index a8c867b79..6e7c64e38 100644
--- a/ares/acinclude.m4
+++ b/ares/acinclude.m4
@@ -52,7 +52,9 @@ dnl -------------------------------------------------
dnl Use the C preprocessor to find out if the given object-style symbol
dnl is defined and get its expansion. This macro will not use default
dnl includes even if no INCLUDES argument is given. This macro will run
-dnl silently when invoked with three arguments.
+dnl silently when invoked with three arguments. If the expansion would
+dnl result in a set of double-quoted strings the returned expansion will
+dnl actually be a single double-quoted string concatenating all them.
AC_DEFUN([CURL_CHECK_DEF], [
AS_VAR_PUSHDEF([ac_HaveDef], [curl_cv_have_def_$1])dnl
@@ -76,17 +78,17 @@ CURL_DEF_TOKEN $1
tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
"$GREP" CURL_DEF_TOKEN 2>/dev/null | \
"$SED" 's/.*CURL_DEF_TOKEN[[ ]]//' 2>/dev/null | \
- "$SED" 'q' 2>/dev/null`
- if test "$tmp_exp" = "$1"; then
+ "$SED" 's/[["]][[ ]]*[["]]//g' 2>/dev/null`
+ if test -z "$tmp_exp" || test "$tmp_exp" = "$1"; then
tmp_exp=""
fi
])
if test -z "$tmp_exp"; then
- AS_VAR_SET([ac_HaveDef], [no])
+ AS_VAR_SET(ac_HaveDef, no)
ifelse($3,,[AC_MSG_RESULT([no])])
else
- AS_VAR_SET([ac_HaveDef], [yes])
- AS_VAR_SET([ac_Def], [$tmp_exp])
+ AS_VAR_SET(ac_HaveDef, yes)
+ AS_VAR_SET(ac_Def, $tmp_exp)
ifelse($3,,[AC_MSG_RESULT([$tmp_exp])])
fi
AS_VAR_POPDEF([ac_Def])dnl