build system: Some cosmetic fixes for the libupsclient.

diff --git a/configure.in b/configure.in
index d02c12f..f291956 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -1271,7 +1271,12 @@ AC_ARG_WITH(libupsclient, [AS_HELP_STRING([--with-libupsclient@<:@=PREFIX@:>@],
                with_libupsclient="yes"
                if "x$withval" != "xyes"
                then
-                       with_upsclient_config="$withval/bin/libupsclient-config"
+                       if test -x "$withval"
+                       then
+                               with_upsclient_config="$withval"
+                       else
+                               with_upsclient_config="$withval/bin/libupsclient-config"
+                       fi
                fi
        fi
 ],
@@ -1285,25 +1290,30 @@ then
 
        if test $upsclient_config_status -ne 0
        then
-               with_libupsclient="no"
+               with_libupsclient="no ($with_upsclient_config failed)"
        fi
 fi
 if test "x$with_libupsclient" = "xyes"
 then
+       SAVE_CFLAGS="$CFLAGS"
+       CFLAGS="$CFLAGS $with_upsclient_cflags"
+
+       AC_CHECK_HEADERS(upsclient.h, [], [with_libupsclient="no (upsclient.h not found)"])
+
+       CFLAGS="$SAVE_CFLAGS"
+fi
+if test "x$with_libupsclient" = "xyes"
+then
        with_upsclient_libs=`$with_upsclient_config --libs 2>/dev/null`
        upsclient_config_status=$?
 
        if test $upsclient_config_status -ne 0
        then
-               with_libupsclient="no"
+               with_libupsclient="no ($with_upsclient_config failed)"
        fi
 fi
 if test "x$with_libupsclient" = "xyes"
 then
-       CFLAGS_ORIG=$CFLAGS
-       CFLAGS="$CFLAGS $with_upsclient_cflags"
-       LDFLAGS_ORIG=$LDFLAGS
-       LDFLAGS="$LDFLAGS $with_upsclient_libs"
        AC_CHECK_LIB(upsclient, upscli_connect,
        [
                BUILD_WITH_LIBUPSCLIENT_CFLAGS="$with_upsclient_cflags"
@@ -1312,14 +1322,8 @@ then
                AC_SUBST(BUILD_WITH_LIBUPSCLIENT_LIBS)
        ],
        [
-               with_libupsclient="no"
-       ])
-       CFLAGS=$CFLAGS_ORIG
-       LDFLAGS=$LDFLAGS_ORIG
-fi
-if test "x$with_libupsclient" = "xyes"
-then
-       AC_DEFINE(HAVE_LIBUPSCLIENT, 1, [Define to 1 if you have the upsclient library (-lupsclient).])
+               with_libupsclient="no (symbol 'upscli_connect' not found)"
+       ], [$with_upsclient_libs])
 fi
 if test "x$with_libupsclient" = "xyes"
 then