* merged from main

[apt.git] / buildlib / tools.m4

diff --git a/buildlib/tools.m4 b/buildlib/tools.m4
index 442c0b6ae2b7d1c3df2ec26214a4b0298ed6ec6d..9a8d744f2267daeefea59f95e809c46b34f67592 100644 (file)
--- a/buildlib/tools.m4
+++ b/buildlib/tools.m4
@@ -91,6 +91,7 @@ AC_DEFUN(ah_NUM_PROCS,
 
 AC_DEFUN(rc_GLIBC_VER,
        [AC_MSG_CHECKING([glibc version])
+       AC_CACHE_VAL(ac_cv_glibc_ver,
        dummy=if$$
        cat <<_GLIBC_>$dummy.c
 #include <features.h>
@@ -102,11 +103,13 @@ _GLIBC_
        if test "$?" = 0; then
                GLIBC_VER=`./$dummy`
                AC_MSG_RESULT([$GLIBC_VER])
-               GLIBC_VER="-$GLIBC_VER"
+               ac_cv_glibc_ver=$GLIBC_VER
        else
                AC_MSG_WARN([cannot determine GNU C library minor version number])
        fi
        rm -f $dummy $dummy.c
+       )
+       GLIBC_VER="-$ac_cv_glibc_ver"
        AC_SUBST(GLIBC_VER)
 ])