]> https://gitweb.dealii.org/ - dealii-svn.git/commitdiff
More housekeeping: rather than having long lists of switches recognizing individual...
authorbangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Fri, 16 Apr 2010 14:32:33 +0000 (14:32 +0000)
committerbangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Fri, 16 Apr 2010 14:32:33 +0000 (14:32 +0000)
git-svn-id: https://svn.dealii.org/trunk@20999 0785d39b-7218-0410-832d-ea1e28bc413d

deal.II/aclocal.m4
deal.II/configure

index da2da496f77bd8797cbe6fafddb924a0cc88d1c8..b07c8d3ec9e1fbbf87304b9df34a95813bdbce82 100644 (file)
@@ -101,122 +101,11 @@ AC_DEFUN(DEAL_II_DETERMINE_CXX_BRAND, dnl
   if test "$GXX" = yes ; then
     dnl find out the right version
     GXX_VERSION_STRING=`($CXX -v 2>&1) | grep "gcc version"`
-    case "$GXX_VERSION_STRING" in
-      *version\ 3.2*)
-       GXX_VERSION=gcc3.2
-        case "$GXX_VERSION_STRING" in
-         *version\ 3.2.0*) GXX_VERSION_DETAILED=gcc3.2.0 ;;
-         *version\ 3.2.1*) GXX_VERSION_DETAILED=gcc3.2.1 ;;
-         *version\ 3.2.2*) GXX_VERSION_DETAILED=gcc3.2.2 ;;
-         *version\ 3.2.3*) GXX_VERSION_DETAILED=gcc3.2.3 ;;
-         *)                GXX_VERSION_DETAILED=gcc3.2.x ;;
-        esac
-       ;;
-      *version\ 3.3*)
-       GXX_VERSION=gcc3.3
-        case "$GXX_VERSION_STRING" in
-         *version\ 3.3.0*) GXX_VERSION_DETAILED=gcc3.3.0 ;;
-         *version\ 3.3.1*) GXX_VERSION_DETAILED=gcc3.3.1 ;;
-         *version\ 3.3.2*) GXX_VERSION_DETAILED=gcc3.3.2 ;;
-         *version\ 3.3.3*) GXX_VERSION_DETAILED=gcc3.3.3 ;;
-         *version\ 3.3.4*) GXX_VERSION_DETAILED=gcc3.3.4 ;;
-         *version\ 3.3.5*) GXX_VERSION_DETAILED=gcc3.3.5 ;;
-         *version\ 3.3.6*) GXX_VERSION_DETAILED=gcc3.3.6 ;;
-         *version\ 3.3.7*) GXX_VERSION_DETAILED=gcc3.3.7 ;;
-         *)                GXX_VERSION_DETAILED=gcc3.3.x ;;
-        esac
-       ;;
-      *version\ 3.4*)
-        case "$GXX_VERSION_STRING" in
-         *version\ 3.4.0*) GXX_VERSION_DETAILED=gcc3.4.0 ;;
-         *version\ 3.4.1*) GXX_VERSION_DETAILED=gcc3.4.1 ;;
-         *version\ 3.4.2*) GXX_VERSION_DETAILED=gcc3.4.2 ;;
-         *version\ 3.4.3*) GXX_VERSION_DETAILED=gcc3.4.3 ;;
-         *version\ 3.4.4*) GXX_VERSION_DETAILED=gcc3.4.4 ;;
-         *version\ 3.4.5*) GXX_VERSION_DETAILED=gcc3.4.5 ;;
-         *version\ 3.4.6*) GXX_VERSION_DETAILED=gcc3.4.6 ;;
-         *)                GXX_VERSION_DETAILED=gcc3.4.x ;;
-        esac
-       GXX_VERSION=gcc3.4
-       ;;
-      *version\ 4.0*)
-       GXX_VERSION=gcc4.0
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.0.0*) GXX_VERSION_DETAILED=gcc4.0.0 ;;
-         *version\ 4.0.1*) GXX_VERSION_DETAILED=gcc4.0.1 ;;
-         *version\ 4.0.2*) GXX_VERSION_DETAILED=gcc4.0.2 ;;
-         *version\ 4.0.3*) GXX_VERSION_DETAILED=gcc4.0.3 ;;
-         *version\ 4.0.4*) GXX_VERSION_DETAILED=gcc4.0.4 ;;
-         *version\ 4.0.5*) GXX_VERSION_DETAILED=gcc4.0.5 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.0.x ;;
-        esac
-       ;;
-      *version\ 4.1*)
-       GXX_VERSION=gcc4.1
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.1.0*) GXX_VERSION_DETAILED=gcc4.1.0 ;;
-         *version\ 4.1.1*) GXX_VERSION_DETAILED=gcc4.1.1 ;;
-         *version\ 4.1.2*) GXX_VERSION_DETAILED=gcc4.1.2 ;;
-         *version\ 4.1.3*) GXX_VERSION_DETAILED=gcc4.1.3 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.1.x ;;
-        esac
-       ;;
-      *version\ 4.2*)
-       GXX_VERSION=gcc4.2
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.2.0*) GXX_VERSION_DETAILED=gcc4.2.0 ;;
-         *version\ 4.2.1*) GXX_VERSION_DETAILED=gcc4.2.1 ;;
-         *version\ 4.2.2*) GXX_VERSION_DETAILED=gcc4.2.2 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.2.x ;;
-        esac
-       ;;
-      *version\ 4.3*)
-       GXX_VERSION=gcc4.3
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.3.0*) GXX_VERSION_DETAILED=gcc4.3.0 ;;
-         *version\ 4.3.1*) GXX_VERSION_DETAILED=gcc4.3.1 ;;
-         *version\ 4.3.2*) GXX_VERSION_DETAILED=gcc4.3.2 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.3.x ;;
-        esac
-       ;;
-      *version\ 4.4*)
-       GXX_VERSION=gcc4.4
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.4.0*) GXX_VERSION_DETAILED=gcc4.4.0 ;;
-         *version\ 4.4.1*) GXX_VERSION_DETAILED=gcc4.4.1 ;;
-         *version\ 4.4.2*) GXX_VERSION_DETAILED=gcc4.4.2 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.4.x ;;
-        esac
-       ;;
-      *version\ 4.5*)
-       GXX_VERSION=gcc4.5
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.5.0*) GXX_VERSION_DETAILED=gcc4.5.0 ;;
-         *version\ 4.5.1*) GXX_VERSION_DETAILED=gcc4.5.1 ;;
-         *version\ 4.5.2*) GXX_VERSION_DETAILED=gcc4.5.2 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.5.x ;;
-        esac
-       ;;
-      *version\ 4.6*)
-       GXX_VERSION=gcc4.6
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.6.0*) GXX_VERSION_DETAILED=gcc4.6.0 ;;
-         *version\ 4.6.1*) GXX_VERSION_DETAILED=gcc4.6.1 ;;
-         *version\ 4.6.2*) GXX_VERSION_DETAILED=gcc4.6.2 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.6.x ;;
-        esac
-       ;;
-      *2.4* | *2.5* | *2.6* | *2.7* | *2.8*)
-       dnl These compilers are too old to support a useful subset
-       dnl of modern C++, so we don't support them
-       AC_MSG_RESULT(C++ compiler is $GXX_VERSION_STRING)
-       AC_MSG_ERROR(C++ compiler is not supported)
-       ;;
-      *)
-       AC_MSG_RESULT(C++ compiler is unknown but accepted gcc version)
-       GXX_VERSION=gcc-other
-       ;;
-    esac
+
+    full_version=`echo "$GXX_VERSION_STRING" | perl -pi -e 's/.*version (\d\.\d\.\d).*/\1/g;'`
+    GXX_VERSION=gcc`echo $full_version | perl -pi -e 's/(\d\.\d).*/\1/g;'`
+    GXX_VERSION_DETAILED=gcc$full_version
+
     AC_MSG_RESULT([C++ compiler is $GXX_VERSION (subversion $GXX_VERSION_DETAILED)])
 
 
@@ -1168,80 +1057,11 @@ AC_DEFUN(DEAL_II_DETERMINE_CC_BRAND, dnl
   if test "$GCC" = yes ; then
     dnl find out the right version
     CC_VERSION_STRING=`($CC -v 2>&1) | grep "gcc version"`
-    case "$CC_VERSION_STRING" in
-      *2.95*)
-       AC_MSG_RESULT(C compiler is gcc-2.95)
-       CC_VERSION=gcc2.95
-       ;;
-      *2.96*)
-       AC_MSG_ERROR(C compiler reports faulty gcc 2.96. Please install a new compiler)
-       CC_VERSION=gcc2.96
-       ;;
-      *2.97*)
-       AC_MSG_RESULT(C compiler is gcc-2.97)
-       CC_VERSION=gcc2.97
-       ;;
-      *version\ 3.0*)
-       AC_MSG_RESULT(C compiler is gcc-3.0)
-       CC_VERSION=gcc3.0
-       ;;
-      *version\ 3.1*)
-       AC_MSG_RESULT(C compiler is gcc-3.1)
-       CC_VERSION=gcc3.1
-       ;;
-      *version\ 3.2*)
-       AC_MSG_RESULT(C compiler is gcc-3.2)
-       CC_VERSION=gcc3.2
-       ;;
-      *version\ 3.3*)
-       AC_MSG_RESULT(C compiler is gcc-3.3)
-       CC_VERSION=gcc3.3
-       ;;
-      *version\ 3.4*)
-       AC_MSG_RESULT(C compiler is gcc-3.4)
-       CC_VERSION=gcc3.4
-       ;;
-      *version\ 3.5*)
-       AC_MSG_RESULT(C compiler is gcc-3.5)
-       CC_VERSION=gcc3.5
-       ;;
-      *version\ 4.0*)
-       AC_MSG_RESULT(C compiler is gcc-4.0)
-       CC_VERSION=gcc4.0
-       ;;
-      *version\ 4.1*)
-       AC_MSG_RESULT(C compiler is gcc-4.1)
-       CC_VERSION=gcc4.1
-       ;;
-      *version\ 4.2*)
-       AC_MSG_RESULT(C compiler is gcc-4.2)
-       CC_VERSION=gcc4.2
-       ;;
-      *version\ 4.3*)
-       AC_MSG_RESULT(C compiler is gcc-4.3)
-       CC_VERSION=gcc4.3
-       ;;
-      *version\ 4.4*)
-       AC_MSG_RESULT(C compiler is gcc-4.4)
-       CC_VERSION=gcc4.4
-       ;;
-      *version\ 4.5*)
-       AC_MSG_RESULT(C compiler is gcc-4.5)
-       CC_VERSION=gcc4.5
-       ;;
-      *version\ 4.6*)
-       AC_MSG_RESULT(C compiler is gcc-4.6)
-       CC_VERSION=gcc4.6
-       ;;
-      *2.4* | *2.5* | *2.6* | *2.7* | *2.8*)
-       AC_MSG_RESULT(C compiler is $CC_VERSION_STRING)
-       AC_MSG_ERROR(C compiler is not supported)
-       ;;
-      *)
-       AC_MSG_RESULT(C compiler is unknown but accepted gcc version)
-       CC_VERSION=gcc-other
-       ;;
-    esac
+
+    full_version=`echo "$CC_VERSION_STRING" | perl -pi -e 's/.*version (\d\.\d\.\d).*/\1/g;'`
+    CC_VERSION=gcc`echo $full_version | perl -pi -e 's/(\d\.\d).*/\1/g;'`
+
+    AC_MSG_RESULT(C compiler is $CC_VERSION)
   else
     dnl Check other (non-gcc) compilers
 
index 984c26c8b4829e189d748623b082250edc767640..6ef5ec55a714d5f7b3ae08fadd3ae8d5d1bd00ca 100755 (executable)
 
   if test "$GXX" = yes ; then
         GXX_VERSION_STRING=`($CXX -v 2>&1) | grep "gcc version"`
-    case "$GXX_VERSION_STRING" in
-      *version\ 3.2*)
-       GXX_VERSION=gcc3.2
-        case "$GXX_VERSION_STRING" in
-         *version\ 3.2.0*) GXX_VERSION_DETAILED=gcc3.2.0 ;;
-         *version\ 3.2.1*) GXX_VERSION_DETAILED=gcc3.2.1 ;;
-         *version\ 3.2.2*) GXX_VERSION_DETAILED=gcc3.2.2 ;;
-         *version\ 3.2.3*) GXX_VERSION_DETAILED=gcc3.2.3 ;;
-         *)                GXX_VERSION_DETAILED=gcc3.2.x ;;
-        esac
-       ;;
-      *version\ 3.3*)
-       GXX_VERSION=gcc3.3
-        case "$GXX_VERSION_STRING" in
-         *version\ 3.3.0*) GXX_VERSION_DETAILED=gcc3.3.0 ;;
-         *version\ 3.3.1*) GXX_VERSION_DETAILED=gcc3.3.1 ;;
-         *version\ 3.3.2*) GXX_VERSION_DETAILED=gcc3.3.2 ;;
-         *version\ 3.3.3*) GXX_VERSION_DETAILED=gcc3.3.3 ;;
-         *version\ 3.3.4*) GXX_VERSION_DETAILED=gcc3.3.4 ;;
-         *version\ 3.3.5*) GXX_VERSION_DETAILED=gcc3.3.5 ;;
-         *version\ 3.3.6*) GXX_VERSION_DETAILED=gcc3.3.6 ;;
-         *version\ 3.3.7*) GXX_VERSION_DETAILED=gcc3.3.7 ;;
-         *)                GXX_VERSION_DETAILED=gcc3.3.x ;;
-        esac
-       ;;
-      *version\ 3.4*)
-        case "$GXX_VERSION_STRING" in
-         *version\ 3.4.0*) GXX_VERSION_DETAILED=gcc3.4.0 ;;
-         *version\ 3.4.1*) GXX_VERSION_DETAILED=gcc3.4.1 ;;
-         *version\ 3.4.2*) GXX_VERSION_DETAILED=gcc3.4.2 ;;
-         *version\ 3.4.3*) GXX_VERSION_DETAILED=gcc3.4.3 ;;
-         *version\ 3.4.4*) GXX_VERSION_DETAILED=gcc3.4.4 ;;
-         *version\ 3.4.5*) GXX_VERSION_DETAILED=gcc3.4.5 ;;
-         *version\ 3.4.6*) GXX_VERSION_DETAILED=gcc3.4.6 ;;
-         *)                GXX_VERSION_DETAILED=gcc3.4.x ;;
-        esac
-       GXX_VERSION=gcc3.4
-       ;;
-      *version\ 4.0*)
-       GXX_VERSION=gcc4.0
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.0.0*) GXX_VERSION_DETAILED=gcc4.0.0 ;;
-         *version\ 4.0.1*) GXX_VERSION_DETAILED=gcc4.0.1 ;;
-         *version\ 4.0.2*) GXX_VERSION_DETAILED=gcc4.0.2 ;;
-         *version\ 4.0.3*) GXX_VERSION_DETAILED=gcc4.0.3 ;;
-         *version\ 4.0.4*) GXX_VERSION_DETAILED=gcc4.0.4 ;;
-         *version\ 4.0.5*) GXX_VERSION_DETAILED=gcc4.0.5 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.0.x ;;
-        esac
-       ;;
-      *version\ 4.1*)
-       GXX_VERSION=gcc4.1
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.1.0*) GXX_VERSION_DETAILED=gcc4.1.0 ;;
-         *version\ 4.1.1*) GXX_VERSION_DETAILED=gcc4.1.1 ;;
-         *version\ 4.1.2*) GXX_VERSION_DETAILED=gcc4.1.2 ;;
-         *version\ 4.1.3*) GXX_VERSION_DETAILED=gcc4.1.3 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.1.x ;;
-        esac
-       ;;
-      *version\ 4.2*)
-       GXX_VERSION=gcc4.2
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.2.0*) GXX_VERSION_DETAILED=gcc4.2.0 ;;
-         *version\ 4.2.1*) GXX_VERSION_DETAILED=gcc4.2.1 ;;
-         *version\ 4.2.2*) GXX_VERSION_DETAILED=gcc4.2.2 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.2.x ;;
-        esac
-       ;;
-      *version\ 4.3*)
-       GXX_VERSION=gcc4.3
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.3.0*) GXX_VERSION_DETAILED=gcc4.3.0 ;;
-         *version\ 4.3.1*) GXX_VERSION_DETAILED=gcc4.3.1 ;;
-         *version\ 4.3.2*) GXX_VERSION_DETAILED=gcc4.3.2 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.3.x ;;
-        esac
-       ;;
-      *version\ 4.4*)
-       GXX_VERSION=gcc4.4
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.4.0*) GXX_VERSION_DETAILED=gcc4.4.0 ;;
-         *version\ 4.4.1*) GXX_VERSION_DETAILED=gcc4.4.1 ;;
-         *version\ 4.4.2*) GXX_VERSION_DETAILED=gcc4.4.2 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.4.x ;;
-        esac
-       ;;
-      *version\ 4.5*)
-       GXX_VERSION=gcc4.5
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.5.0*) GXX_VERSION_DETAILED=gcc4.5.0 ;;
-         *version\ 4.5.1*) GXX_VERSION_DETAILED=gcc4.5.1 ;;
-         *version\ 4.5.2*) GXX_VERSION_DETAILED=gcc4.5.2 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.5.x ;;
-        esac
-       ;;
-      *version\ 4.6*)
-       GXX_VERSION=gcc4.6
-        case "$GXX_VERSION_STRING" in
-         *version\ 4.6.0*) GXX_VERSION_DETAILED=gcc4.6.0 ;;
-         *version\ 4.6.1*) GXX_VERSION_DETAILED=gcc4.6.1 ;;
-         *version\ 4.6.2*) GXX_VERSION_DETAILED=gcc4.6.2 ;;
-         *)                GXX_VERSION_DETAILED=gcc4.6.x ;;
-        esac
-       ;;
-      *2.4* | *2.5* | *2.6* | *2.7* | *2.8*)
-                       { $as_echo "$as_me:$LINENO: result: C++ compiler is $GXX_VERSION_STRING" >&5
-$as_echo "C++ compiler is $GXX_VERSION_STRING" >&6; }
-       { { $as_echo "$as_me:$LINENO: error: C++ compiler is not supported" >&5
-$as_echo "$as_me: error: C++ compiler is not supported" >&2;}
-   { (exit 1); exit 1; }; }
-       ;;
-      *)
-       { $as_echo "$as_me:$LINENO: result: C++ compiler is unknown but accepted gcc version" >&5
-$as_echo "C++ compiler is unknown but accepted gcc version" >&6; }
-       GXX_VERSION=gcc-other
-       ;;
-    esac
+
+    full_version=`echo "$GXX_VERSION_STRING" | perl -pi -e 's/.*version (\d\.\d\.\d).*/\1/g;'`
+    GXX_VERSION=gcc`echo $full_version | perl -pi -e 's/(\d\.\d).*/\1/g;'`
+    GXX_VERSION_DETAILED=gcc$full_version
+
     { $as_echo "$as_me:$LINENO: result: C++ compiler is $GXX_VERSION (subversion $GXX_VERSION_DETAILED)" >&5
 $as_echo "C++ compiler is $GXX_VERSION (subversion $GXX_VERSION_DETAILED)" >&6; }
 
@@ -5256,101 +5143,12 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
   if test "$GCC" = yes ; then
         CC_VERSION_STRING=`($CC -v 2>&1) | grep "gcc version"`
-    case "$CC_VERSION_STRING" in
-      *2.95*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-2.95" >&5
-$as_echo "C compiler is gcc-2.95" >&6; }
-       CC_VERSION=gcc2.95
-       ;;
-      *2.96*)
-       { { $as_echo "$as_me:$LINENO: error: C compiler reports faulty gcc 2.96. Please install a new compiler" >&5
-$as_echo "$as_me: error: C compiler reports faulty gcc 2.96. Please install a new compiler" >&2;}
-   { (exit 1); exit 1; }; }
-       CC_VERSION=gcc2.96
-       ;;
-      *2.97*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-2.97" >&5
-$as_echo "C compiler is gcc-2.97" >&6; }
-       CC_VERSION=gcc2.97
-       ;;
-      *version\ 3.0*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-3.0" >&5
-$as_echo "C compiler is gcc-3.0" >&6; }
-       CC_VERSION=gcc3.0
-       ;;
-      *version\ 3.1*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-3.1" >&5
-$as_echo "C compiler is gcc-3.1" >&6; }
-       CC_VERSION=gcc3.1
-       ;;
-      *version\ 3.2*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-3.2" >&5
-$as_echo "C compiler is gcc-3.2" >&6; }
-       CC_VERSION=gcc3.2
-       ;;
-      *version\ 3.3*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-3.3" >&5
-$as_echo "C compiler is gcc-3.3" >&6; }
-       CC_VERSION=gcc3.3
-       ;;
-      *version\ 3.4*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-3.4" >&5
-$as_echo "C compiler is gcc-3.4" >&6; }
-       CC_VERSION=gcc3.4
-       ;;
-      *version\ 3.5*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-3.5" >&5
-$as_echo "C compiler is gcc-3.5" >&6; }
-       CC_VERSION=gcc3.5
-       ;;
-      *version\ 4.0*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-4.0" >&5
-$as_echo "C compiler is gcc-4.0" >&6; }
-       CC_VERSION=gcc4.0
-       ;;
-      *version\ 4.1*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-4.1" >&5
-$as_echo "C compiler is gcc-4.1" >&6; }
-       CC_VERSION=gcc4.1
-       ;;
-      *version\ 4.2*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-4.2" >&5
-$as_echo "C compiler is gcc-4.2" >&6; }
-       CC_VERSION=gcc4.2
-       ;;
-      *version\ 4.3*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-4.3" >&5
-$as_echo "C compiler is gcc-4.3" >&6; }
-       CC_VERSION=gcc4.3
-       ;;
-      *version\ 4.4*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-4.4" >&5
-$as_echo "C compiler is gcc-4.4" >&6; }
-       CC_VERSION=gcc4.4
-       ;;
-      *version\ 4.5*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-4.5" >&5
-$as_echo "C compiler is gcc-4.5" >&6; }
-       CC_VERSION=gcc4.5
-       ;;
-      *version\ 4.6*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is gcc-4.6" >&5
-$as_echo "C compiler is gcc-4.6" >&6; }
-       CC_VERSION=gcc4.6
-       ;;
-      *2.4* | *2.5* | *2.6* | *2.7* | *2.8*)
-       { $as_echo "$as_me:$LINENO: result: C compiler is $CC_VERSION_STRING" >&5
-$as_echo "C compiler is $CC_VERSION_STRING" >&6; }
-       { { $as_echo "$as_me:$LINENO: error: C compiler is not supported" >&5
-$as_echo "$as_me: error: C compiler is not supported" >&2;}
-   { (exit 1); exit 1; }; }
-       ;;
-      *)
-       { $as_echo "$as_me:$LINENO: result: C compiler is unknown but accepted gcc version" >&5
-$as_echo "C compiler is unknown but accepted gcc version" >&6; }
-       CC_VERSION=gcc-other
-       ;;
-    esac
+
+    full_version=`echo "$CC_VERSION_STRING" | perl -pi -e 's/.*version (\d\.\d\.\d).*/\1/g;'`
+    CC_VERSION=gcc`echo $full_version | perl -pi -e 's/(\d\.\d).*/\1/g;'`
+
+    { $as_echo "$as_me:$LINENO: result: C compiler is $CC_VERSION" >&5
+$as_echo "C compiler is $CC_VERSION" >&6; }
   else
 
                     is_ibm_xlc="`($CC 2>&1) | egrep 'VisualAge C|C Set ++|C for AIX Compiler'`"

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