diff --git a/ChangeLog b/ChangeLog
index 67dc8ba..806fb38 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2004-03-20  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+
+	* m4/gmp.m4 (CL_GMP_CHECK): Do not lose LIBS setting with config.cache
+	enabled.
+
 2004-03-08  Bruno Haible  <bruno@clisp.org>
 
 	* src/float/lfloat/elem/cl_LF_mul.cc (operator*): Fix the second
diff --git a/autoconf/aclocal.m4 b/autoconf/aclocal.m4
index 28c5d3f..3163e27 100644
--- a/autoconf/aclocal.m4
+++ b/autoconf/aclocal.m4
@@ -4517,8 +4517,12 @@ AC_DEFUN([CL_GMP_CHECK],
     SAVELIBS=$LIBS
     LIBS="$LIBS -lgmp"
     AC_TRY_LINK([#include <gmp.h>],[mpn_divexact_by3(0,0,0)],
-cl_cv_new_libgmp="yes", cl_cv_new_libgmp="no"; LIBS=$SAVELIBS)
-])])
+cl_cv_new_libgmp="yes", cl_cv_new_libgmp="no")
+    LIBS=$SAVELIBS])
+    if test x"$cl_cv_new_libgmp" = xyes; then
+      LIBS="$LIBS -lgmp"
+    fi
+])
 
 dnl What is sizeof(mp_limb_t)?  (It has to match sizeof(uintD) later.)
 AC_DEFUN([CL_GMP_SET_UINTD],
diff --git a/m4/gmp.m4 b/m4/gmp.m4
index 1fb0db9..93bdc5d 100644
--- a/m4/gmp.m4
+++ b/m4/gmp.m4
@@ -26,8 +26,12 @@ AC_DEFUN([CL_GMP_CHECK],
     SAVELIBS=$LIBS
     LIBS="$LIBS -lgmp"
     AC_TRY_LINK([#include <gmp.h>],[mpn_divexact_by3(0,0,0)],
-cl_cv_new_libgmp="yes", cl_cv_new_libgmp="no"; LIBS=$SAVELIBS)
-])])
+cl_cv_new_libgmp="yes", cl_cv_new_libgmp="no")
+    LIBS=$SAVELIBS])
+    if test x"$cl_cv_new_libgmp" = xyes; then
+      LIBS="$LIBS -lgmp"
+    fi
+])
 
 dnl What is sizeof(mp_limb_t)?  (It has to match sizeof(uintD) later.)
 AC_DEFUN([CL_GMP_SET_UINTD],