Parameters were underquoted, resulting in
warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop_at_gmail.com>

---
 docs/libcurl/libcurl.m4 |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/docs/libcurl/libcurl.m4 b/docs/libcurl/libcurl.m4
index 8cada05..d7d5a52 100644
--- a/docs/libcurl/libcurl.m4
+++ b/docs/libcurl/libcurl.m4
@@ -146,7 +146,7 @@ AC_DEFUN([LIBCURL_CHECK_CONFIG],
            _libcurl_save_libs=$LIBS
            LIBS="$LIBCURL $LIBS"
 
-           AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <curl/curl.h>],[
+           AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <curl/curl.h>]],[[
 /* Try and use a few common options to force a failure if we are
    missing symbols or can't link. */
 int x;
@@ -158,7 +158,7 @@ x=CURLOPT_ERRORBUFFER;
 x=CURLOPT_STDERR;
 x=CURLOPT_VERBOSE;
 if (x) ;
-])],libcurl_cv_lib_curl_usable=yes,libcurl_cv_lib_curl_usable=no)
+]])],libcurl_cv_lib_curl_usable=yes,libcurl_cv_lib_curl_usable=no)
 
            CPPFLAGS=$_libcurl_save_cppflags
            LIBS=$_libcurl_save_libs
-- 
1.7.7.3
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