science/mbdyn: Unbreak build by properly implementing get_nprocs() for FreeBSD.

It looks like it was only built for one CPU before and didn't fail.
Some change in the underlying libraries triggered the build to become
multi-CPU and it began failing because get_nprocs() wasn't available
for FreeBSD and also was't properly linked to the surrounding code.
Reported by:	fallout

7 files changed, 89 insertions, 4 deletions

diff --git a/science/mbdyn/Makefile b/science/mbdyn/Makefile
index 006b0d124aa3..cd6b63780a8c 100644
--- a/science/mbdyn/Makefile
+++ b/science/mbdyn/Makefile
@@ -1,8 +1,8 @@
 # Created by: Kay Lehmann <kay_lehmann@web.de>
 
 PORTNAME=	mbdyn
-PORTVERSION=	1.7.3
-PORTREVISION=	1
+DISTVERSION=	1.7.3
+PORTREVISION=	3
 CATEGORIES=	science
 MASTER_SITES=	https://www.mbdyn.org/userfiles/downloads/
 
@@ -20,12 +20,15 @@ LIB_DEPENDS=	libltdl.so:devel/libltdl \
 		libarpack.so:math/arpack-ng \
 		libumfpack.so:math/suitesparse
 
-GNU_CONFIGURE=	yes
 USES=		compiler:c++11-lib fortran gmake libtool:build localbase
 USE_LDCONFIG=	yes
+
 CPPFLAGS+=	-fpermissive -I${LOCALBASE}/include/suitesparse
+
+GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--program-prefix='' --enable-multithread --with-mpi=no \
 		--with-ginac=no
+
 INSTALL_TARGET=	install-strip
 
 OPTIONS_DEFINE=	METIS CHACO
diff --git a/science/mbdyn/files/patch-libraries_libobjs_get__nprocs.c b/science/mbdyn/files/patch-libraries_libobjs_get__nprocs.c
new file mode 100644
index 000000000000..9aaa6e62bd02
--- /dev/null
+++ b/science/mbdyn/files/patch-libraries_libobjs_get__nprocs.c
@@ -0,0 +1,39 @@
+--- libraries/libobjs/get_nprocs.c.orig	2021-04-22 19:18:04 UTC
++++ libraries/libobjs/get_nprocs.c
+@@ -39,10 +39,28 @@
+ 
+ #ifndef HAVE_GET_NPROCS
+ 
++#if defined(__FreeBSD__)
++#include <sys/types.h>
++#include <sys/sysctl.h>
++#include <stdio.h>
++#include <stdlib.h>
++#endif
++
+ /* GNU libc */
+ int
+ get_nprocs(void)
+ {
++#if defined(__FreeBSD__)
++	static int name[2] = {CTL_HW, HW_NCPU};
++	int32_t ncpu;
++	size_t size = sizeof(ncpu);
++	if (sysctl(name, sizeof(name)/sizeof(*name), &ncpu, &size, NULL, 0)) {
++		perror("unable to determine number of CPUs");
++		abort();
++	}
++	return (int)ncpu;
++
++#else
+ #warning "pippero!!!"
+ #if defined(_SC_NPROCESSORS_ONLN)
+ 	/* POSIX.1. */
+@@ -65,6 +83,7 @@ get_nprocs(void)
+ #endif
+ 	/* we assume that there is at least one :) */
+ 	return 1;
++#endif
+ }
+ 
+ #endif /* HAVE_GET_NPROCS */
diff --git a/science/mbdyn/files/patch-mbdyn_base_invsolver.cc b/science/mbdyn/files/patch-mbdyn_base_invsolver.cc
new file mode 100644
index 000000000000..63e116306104
--- /dev/null
+++ b/science/mbdyn/files/patch-mbdyn_base_invsolver.cc
@@ -0,0 +1,11 @@
+--- mbdyn/base/invsolver.cc.orig	2017-09-09 09:20:12 UTC
++++ mbdyn/base/invsolver.cc
+@@ -76,6 +76,8 @@
+ 
+ #include "solver_impl.h"
+ 
++extern "C" {int get_nprocs(void);}
++
+ InverseSolver::InverseSolver(MBDynParser& HPar,
+ 		const std::string& sInFName,
+ 		const std::string& sOutFName,
diff --git a/science/mbdyn/files/patch-mbdyn_base_readlinsol.cc b/science/mbdyn/files/patch-mbdyn_base_readlinsol.cc
new file mode 100644
index 000000000000..2154c6d46aaf
--- /dev/null
+++ b/science/mbdyn/files/patch-mbdyn_base_readlinsol.cc
@@ -0,0 +1,11 @@
+--- mbdyn/base/readlinsol.cc.orig	2021-04-22 19:28:15 UTC
++++ mbdyn/base/readlinsol.cc
+@@ -35,6 +35,8 @@
+ #include "dataman.h"
+ #include "readlinsol.h"
+ 
++extern "C" {int get_nprocs(void);}
++
+ void
+ ReadLinSol(LinSol& cs, HighParser &HP, bool bAllowEmpty)
+ {
diff --git a/science/mbdyn/files/patch-mbdyn_base_rtsolver.cc b/science/mbdyn/files/patch-mbdyn_base_rtsolver.cc
new file mode 100644
index 000000000000..bc93ef8cfb6d
--- /dev/null
+++ b/science/mbdyn/files/patch-mbdyn_base_rtsolver.cc
@@ -0,0 +1,11 @@
+--- mbdyn/base/rtsolver.cc.orig	2021-04-22 19:28:55 UTC
++++ mbdyn/base/rtsolver.cc
+@@ -38,6 +38,8 @@
+ #include "rtaisolver.h"
+ #include "rtposixsolver.h"
+ #include "ac/sys_sysinfo.h"
++
++extern "C" {int get_nprocs(void);}
+  
+ /* RTSolverBase - begin */
+ 
diff --git a/science/mbdyn/files/patch-mbdyn_base_solver.cc b/science/mbdyn/files/patch-mbdyn_base_solver.cc
new file mode 100644
index 000000000000..92675d27ae77
--- /dev/null
+++ b/science/mbdyn/files/patch-mbdyn_base_solver.cc
@@ -0,0 +1,10 @@
+--- mbdyn/base/solver.cc.orig	2021-04-22 19:30:51 UTC
++++ mbdyn/base/solver.cc
+@@ -85,6 +85,7 @@
+ #include "ac/arpack.h"
+ #include "eigjdqz.h"
+ 
++extern "C" {int get_nprocs(void);}
+ 
+ #ifdef HAVE_SIGNAL
+ /*
diff --git a/science/mbdyn/pkg-descr b/science/mbdyn/pkg-descr
index 14cc6838c91c..68a8e27e7369 100644
--- a/science/mbdyn/pkg-descr
+++ b/science/mbdyn/pkg-descr
@@ -8,4 +8,4 @@
   o a commercial tool
   o a completely supported software
 
-WWW: http://www.mbdyn.org
+WWW: https://www.mbdyn.org/