Move some code under #ifdef guards. This works, but the main reason we

do it is that if we include these header files icc71 can't be used any
more on newer linux systems due to a stupid interaction with
/usr/include/linux.h that simply kicks out non-gcc versions (icc8
identifies itself as gcc, so isn't affected)...

git-svn-id: https://svn.dealii.org/trunk@9716 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/lac/source/sparse_direct.cc b/deal.II/lac/source/sparse_direct.cc
index 46b0d5f4ccc40c2eb85b416a99de6128421232e9..332bd21ff7e939fc7af31a4080ce0b17d750cd7a 100644 (file)
--- a/deal.II/lac/source/sparse_direct.cc
+++ b/deal.II/lac/source/sparse_direct.cc
@@ -22,24 +22,27 @@
 #include <list>
 #include <typeinfo>
 
-#include <sys/wait.h>
-#include <sys/types.h>
-#include <signal.h>
-#include <unistd.h>
-
-#ifndef DEAL_II_USE_DIRECT_ERRNO_H
-#  include <errno.h>
-#else
-#  include </usr/include/errno.h>
-#endif
-#include <sys/errno.h>
-
 
 // if we know that at least one of the HSL functions are there,
 // include the respective include file. Otherwise save some CPU cycles
 // in the compiler
+//
+// also, we don't need all the other headers if the respective hsl
+// routines aren't used
 #if defined(HAVE_HSL_MA27) || defined(HAVE_HSL_MA47)
 #  include <hsl/hsl.h>
+
+#  include <sys/wait.h>
+#  include <sys/types.h>
+#  include <signal.h>
+#  include <unistd.h>
+
+#  ifndef DEAL_II_USE_DIRECT_ERRNO_H
+#    include <errno.h>
+#  else
+#    include </usr/include/errno.h>
+#  endif
+#  include <sys/errno.h>
 #endif
 
 // include UMFPACK file.