X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=configure.ac;h=26c3c62b4305dd64af4520c9b1d368990c16333b;hb=7351d04517a2a1ad48880d4fa46e780068929d6e;hp=3e45ddaa55d8ece085ce56c018dad1343cd9ee72;hpb=e73ad04f2d8e0bbd99431d4c412f3a2358f3e299;p=oweals%2Fgnunet.git

diff --git a/configure.ac b/configure.ac
index 3e45ddaa5..26c3c62b4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -29,6 +29,7 @@ AC_CONFIG_HEADERS([gnunet_config.h])
 AH_TOP([#define _GNU_SOURCE  1])
 
 # Checks for programs.
+AC_CANONICAL_TARGET
 AC_CANONICAL_SYSTEM
 AC_PROG_AWK
 AC_PROG_CC
@@ -256,16 +257,19 @@ 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)