From c81f41694bcffccf38e17a63627a862628294613 Mon Sep 17 00:00:00 2001
From: Greg Landrum <greg.landrum@gmail.com>
Date: Mon, 1 May 2023 14:50:05 +0200
Subject: [PATCH] a bit of modernization (#39)

* cleanup prototypes

* change minimum cmake version
---
 tightbind/CMakeLists.txt | 2 +-
 tightbind/bind.h         | 4 +++-
 tightbind/prototypes.h   | 7 +++----
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/tightbind/CMakeLists.txt b/tightbind/CMakeLists.txt
index d32840e3..31af3ebf 100644
--- a/tightbind/CMakeLists.txt
+++ b/tightbind/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 3.0)
 
 project(yaehmop C)
 
diff --git a/tightbind/bind.h b/tightbind/bind.h
index 27673e72..17dcc07e 100644
--- a/tightbind/bind.h
+++ b/tightbind/bind.h
@@ -74,7 +74,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-//#include <unistd.h>
+#ifndef _MSC_VER
+#include <unistd.h>
+#endif
 #include <sys/stat.h>
 #include <sys/types.h>
 
diff --git a/tightbind/prototypes.h b/tightbind/prototypes.h
index 8052056a..e96f57e8 100644
--- a/tightbind/prototypes.h
+++ b/tightbind/prototypes.h
@@ -136,7 +136,7 @@ extern void construct_band_structure PROTO(
 extern void eval_charge_matrix PROTO((cell_type *, eigenset_type,
                                       hermetian_matrix_type, int, int *, real *,
                                       real *));
-extern void reduced_charge_matrix PROTO((int, int, int *, real *, real *));
+extern void reduced_charge_mat PROTO((int, int, int *, real *, real *));
 extern void check_a_cell PROTO((atom_type *, point_type, int, real, char *));
 extern void check_nn_contacts PROTO((cell_type *, detail_type *details));
 extern void build_distance_matrix PROTO((cell_type *, detail_type *details));
@@ -349,8 +349,8 @@ extern void gen_k_point_mesh PROTO((point_type * *points, int num_per_vect[3],
                                     real offset));
 extern void automagic_k_points PROTO((detail_type * details, cell_type *cell));
 
-extern void set_details_defaults PROTO((detail_type*));
-extern void set_cell_defaults PROTO((cell_type*));
+extern void set_details_defaults PROTO((detail_type *));
+extern void set_cell_defaults PROTO((cell_type *));
 extern void run_bind PROTO((char *, bool, char *));
 extern void run_eht PROTO((FILE *));
 
@@ -381,4 +381,3 @@ extern int zheev_ PROTO((char *jobz, char *uplo, integer *n, doublecomplex *a,
                          integer *lda, doublereal *w, doublecomplex *work,
                          integer *lwork, doublereal *rwork, integer *info));
 #endif
-