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[oweals/gnunet.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 3e45ddaa55d8ece085ce56c018dad1343cd9ee72..3b8b324f50147c2ef4dd3a8a8b87d28977f863ee 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -256,16 +256,19 @@ fi        # $build = $target
 #AM_CONDITIONAL(HAVE_GLPK, test x$glpk = xtrue)
 #AC_CHECK_LIB([glpk],[glp_create_prob])
 
-a=true
-AC_CHECK_HEADERS(glpk.h, ,[a=false])
-AC_CHECK_LIB([glpk],[glp_create_prob], , [a=false])
-if test $a == false
+glpk=true
+AC_CHECK_HEADERS(glpk.h, ,[gplk=false])
+AC_CHECK_LIB([glpk],[glp_create_prob], , [gplk=false])
+# GLPK must support atm MLP presolving, version >= 4.32
+AC_CHECK_MEMBERS(glp_iocp.presolve, ,[gplk=false],[[#include <glpk.h>]])
+if test $gplk = false
 then
-       AM_CONDITIONAL(HAVE_GLPK, [test x$a = xtrue])
-       AM_CONDITIONAL(HAVE_LIBGLPK, [test x$a != x$a])
+       AM_CONDITIONAL(HAVE_GLPK, [test x$gplk = xtrue])
+       AM_CONDITIONAL(HAVE_LIBGLPK, [test x$gplk != x$gplk])
+       AC_MSG_WARN([GNUnet requires GLPK  >= 4.32])
 else
-       AM_CONDITIONAL(HAVE_GLPK, [test x$a = xtrue])
-       AM_CONDITIONAL(HAVE_LIBGLPK, [test x$a = x$a])
+       AM_CONDITIONAL(HAVE_GLPK, [test x$gplk = xtrue])
+       AM_CONDITIONAL(HAVE_LIBGLPK, [test x$gplk = x$gplk])
 fi
 
 # test for kvm and kstat (for CPU stats under BSD/Solaris)