# HG changeset patch
# User Akos Ladanyi <ladanyi@tmit.bme.hu>
# Date 2009-04-28 12:25:47
# Node ID 57e6f560fb134b8db6eacb1d0654ef78ebcfabb2
# Parent  4faa0c7639065675f2d8eae9d5031a4a93468d25

Check the version number in FindGLPK (#277)

diff --git a/cmake/FindGLPK.cmake b/cmake/FindGLPK.cmake
--- a/cmake/FindGLPK.cmake
+++ b/cmake/FindGLPK.cmake
@@ -14,8 +14,37 @@
   HINTS ${GLPK_ROOT_DIR}/lib
 )
 
+IF(GLPK_INCLUDE_DIR AND GLPK_LIBRARY)
+  FILE(READ ${GLPK_INCLUDE_DIR}/glpk.h GLPK_GLPK_H)
+
+  STRING(REGEX MATCH "define[ ]+GLP_MAJOR_VERSION[ ]+[0-9]+" GLPK_MAJOR_VERSION_LINE "${GLPK_GLPK_H}")
+  STRING(REGEX REPLACE "define[ ]+GLP_MAJOR_VERSION[ ]+([0-9]+)" "\\1" GLPK_VERSION_MAJOR "${GLPK_MAJOR_VERSION_LINE}")
+
+  STRING(REGEX MATCH "define[ ]+GLP_MINOR_VERSION[ ]+[0-9]+" GLPK_MINOR_VERSION_LINE "${GLPK_GLPK_H}")
+  STRING(REGEX REPLACE "define[ ]+GLP_MINOR_VERSION[ ]+([0-9]+)" "\\1" GLPK_VERSION_MINOR "${GLPK_MINOR_VERSION_LINE}")
+
+  SET(GLPK_VERSION_STRING "${GLPK_VERSION_MAJOR}.${GLPK_VERSION_MINOR}")
+
+  IF(GLPK_FIND_VERSION)
+    IF(GLPK_FIND_VERSION_COUNT GREATER 2)
+      MESSAGE(SEND_ERROR "unexpected version string")
+    ENDIF(GLPK_FIND_VERSION_COUNT GREATER 2)
+
+    MATH(EXPR GLPK_REQUESTED_VERSION "${GLPK_FIND_VERSION_MAJOR}*100 + ${GLPK_FIND_VERSION_MINOR}")
+    MATH(EXPR GLPK_FOUND_VERSION "${GLPK_VERSION_MAJOR}*100 + ${GLPK_VERSION_MINOR}")
+
+    IF(GLPK_FOUND_VERSION LESS GLPK_REQUESTED_VERSION)
+      SET(GLPK_PROPER_VERSION_FOUND FALSE)
+    ELSE(GLPK_FOUND_VERSION LESS GLPK_REQUESTED_VERSION)
+      SET(GLPK_PROPER_VERSION_FOUND TRUE)
+    ENDIF(GLPK_FOUND_VERSION LESS GLPK_REQUESTED_VERSION)
+  ELSE(GLPK_FIND_VERSION)
+    SET(GLPK_PROPER_VERSION_FOUND TRUE)
+  ENDIF(GLPK_FIND_VERSION)
+ENDIF(GLPK_INCLUDE_DIR AND GLPK_LIBRARY)
+
 INCLUDE(FindPackageHandleStandardArgs)
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(GLPK DEFAULT_MSG GLPK_LIBRARY GLPK_INCLUDE_DIR)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(GLPK DEFAULT_MSG GLPK_LIBRARY GLPK_INCLUDE_DIR GLPK_PROPER_VERSION_FOUND)
 
 IF(GLPK_FOUND)
   SET(GLPK_INCLUDE_DIRS ${GLPK_INCLUDE_DIR})