5 files changed, 65 insertions, 46 deletions

diff --git a/configure.ac b/configure.ac
index f1ecdf9..aa1d3df 100644
--- a/configure.ac
+++ b/configure.ac
@@ -57,6 +57,11 @@ AC_SEARCH_LIBS([H5TBmake_table],[hdf5_hl],[],
 # MODULE: PETSc #
 #################
 
+AC_SEARCH_LIBS([pthread_atfork],[pthread])
+
+AC_SEARCH_LIBS([PetscInitialize],[petsc],[],
+[AC_MSG_ERROR("The Portable Extensible Toolkit for Scientific Computation (PETSc) is needed to build the system.")])
+
 # The AC_SEARCH_LIBS other-libraries list is not particularly useful.
 # Autoconf determines if the other-libraries are necessary however in
 # the cases where they are indeed necessary they are not actually
@@ -65,11 +70,10 @@ AC_SEARCH_LIBS([H5TBmake_table],[hdf5_hl],[],
 # These are the dependencies.  Random functions are selected from
 # these libraries from the list of otherwise undefined references at
 # link time.
-AC_SEARCH_LIBS([PetscInitialize],[petsc])
 AC_SEARCH_LIBS([VecNorm],[petscvec])
 
 # MatCreateSeqAIJ is acutally used in the code for this project.
 AC_SEARCH_LIBS([MatCreateSeqAIJ],[petscmat],[],
-[AC_MSG_ERROR("The Portable Extensible Tookit for Scientific Computation PETSc is needed to build the system.")])
+[AC_MSG_ERROR("The Portable Extensible Toolkit for Scientific Computation (PETSc) is needed to build the system.")])
 
 AC_OUTPUT