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[oweals/gnunet.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index b3a965e3b0a2f23d9b923244155726372bb4cae1..3b8b324f50147c2ef4dd3a8a8b87d28977f863ee 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -259,10 +259,13 @@ fi        # $build = $target
 glpk=true
 AC_CHECK_HEADERS(glpk.h, ,[gplk=false])
 AC_CHECK_LIB([glpk],[glp_create_prob], , [gplk=false])
-if test $gplk == false
+# GLPK must support atm MLP presolving, version >= 4.32
+AC_CHECK_MEMBERS(glp_iocp.presolve, ,[gplk=false],[[#include <glpk.h>]])
+if test $gplk = false
 then
        AM_CONDITIONAL(HAVE_GLPK, [test x$gplk = xtrue])
        AM_CONDITIONAL(HAVE_LIBGLPK, [test x$gplk != x$gplk])
+       AC_MSG_WARN([GNUnet requires GLPK  >= 4.32])
 else
        AM_CONDITIONAL(HAVE_GLPK, [test x$gplk = xtrue])
        AM_CONDITIONAL(HAVE_LIBGLPK, [test x$gplk = x$gplk])