Fix configuration with multi-word GMP_LIBS.

Signed-off-by: Kai Pastor <dg0yt@darc.de>

diff --git a/m4/hooks.m4 b/m4/hooks.m4
index 3bb16db954d2ed00ad342792ee0dd5f27731da2d..2ebbca584f54e6bd4438d34278f6ca814c032cec 100644 (file)
--- a/m4/hooks.m4
+++ b/m4/hooks.m4
@@ -97,7 +97,7 @@ AC_MSG_ERROR([[
     GMP_CFLAGS=""
     GMP_LIBS=""
   else
-    if test x$GMP_LIBS = x; then
+    if test "x$GMP_LIBS" = "x"; then
        AC_CHECK_LIB(gmp, __gmpz_cmp, [GMP_LIBS="-lgmp"], [AC_MSG_ERROR([[
 ***
 *** gmp was not found.