From 482064760e0c30c966dbfdf0deb3dc358a70ae12 Mon Sep 17 00:00:00 2001
From: Yuri Victorovich <yuri@FreeBSD.org>
Date: Thu, 8 Aug 2019 04:06:03 +0000
Subject: [PATCH] science/simbody: Add the option EXAMPLE_PROGRAMS that builds
 and installs example programs

---
 science/simbody/Makefile                      | 12 +++++++----
 .../files/patch-examples_CMakeLists.txt       | 20 +++++++++++++++++++
 2 files changed, 28 insertions(+), 4 deletions(-)
 create mode 100644 science/simbody/files/patch-examples_CMakeLists.txt

diff --git a/science/simbody/Makefile b/science/simbody/Makefile
index ba6c70fca795..f85906763258 100644
--- a/science/simbody/Makefile
+++ b/science/simbody/Makefile
@@ -3,7 +3,7 @@
 PORTNAME=	simbody
 DISTVERSIONPREFIX=	Simbody-
 DISTVERSION=	3.6.1
-PORTREVISION=	3
+PORTREVISION=	4
 CATEGORIES=	science biology
 
 PATCH_SITES=	https://github.com/${PORTNAME}/${PORTNAME}/commit/
@@ -22,10 +22,10 @@ USES=		blaslapack:openblas cmake compiler:c++11-lang fortran # fortran only for
 USE_GITHUB=	yes
 USE_LDCONFIG=	yes
 
-CMAKE_OFF=	BUILD_TESTING BUILD_EXAMPLES
-CMAKE_ARGS=	-DBLAS_LIBRARIES:STRING=${LOCALBASE}/lib/libopenblas.so -DLAPACK_LIBRARIES:STRING=${LOCALBASE}/lib/libopenblas.so
+CMAKE_OFF=	BUILD_TESTING
+CMAKE_ARGS=	-DBLAS_LIBRARIES:STRING=${LOCALBASE}/lib/libopenblas.so -DLAPACK_LIBRARIES:STRING=${LOCALBASE}/lib/libopenblas.so -DFREEBSD_EXAMPLESDIR=${EXAMPLESDIR}
 
-OPTIONS_DEFINE=		DOCS VISUALIZER
+OPTIONS_DEFINE=		DOCS VISUALIZER EXAMPLE_PROGRAMS # EXAMPLE_PROGRAMS significanly increases the build time and package size, so it is not called EXAMPLES to prevent it from being installed by default
 OPTIONS_DEFAULT=	VISUALIZER
 OPTIONS_SUB=		yes
 
@@ -36,7 +36,11 @@ VISUALIZER_CMAKE_BOOL=	BUILD_VISUALIZER
 VISUALIZER_USES=	gl
 VISUALIZER_USE=		GL=gl,glu,glut XORG=xi,xmu
 
+EXAMPLE_PROGRAMS_DESC=	Build and install example programs
+EXAMPLE_PROGRAMS_CMAKE_BOOL=	BUILD_EXAMPLES
+
 PORTDOCS=	*
+# this port installs examples into ${EXAMPLESDIR} when EXAMPLE_PROGRAMS=ON, but check-plist doesn't complain for some reason
 
 post-install-DOCS-on: # https://github.com/simbody/simbody/issues/652
 	@${RMDIR} ${STAGEDIR}${DOCSDIR}/api
diff --git a/science/simbody/files/patch-examples_CMakeLists.txt b/science/simbody/files/patch-examples_CMakeLists.txt
new file mode 100644
index 000000000000..600efcb37ee9
--- /dev/null
+++ b/science/simbody/files/patch-examples_CMakeLists.txt
@@ -0,0 +1,20 @@
+--- examples/CMakeLists.txt.orig	2018-06-12 01:04:33 UTC
++++ examples/CMakeLists.txt
+@@ -67,7 +67,7 @@ if(WIN32)
+   set(EXAMPLES_INSTALL_BIN examples/bin/)
+   set(EXAMPLES_INSTALL_SRC examples/src/)
+ else()
+-  set(EXAMPLES_INSTALL_BIN ${CMAKE_INSTALL_LIBDIR}/simbody/examples/) # if this changes, change the corresponding
++  set(EXAMPLES_INSTALL_BIN ${FREEBSD_EXAMPLESDIR}) # if this changes, change the corresponding
+                                                                       # FULL version in file(RELATIVE_PATH ) command
+   set(EXAMPLES_INSTALL_SRC ${CMAKE_INSTALL_DOCDIR}/examples/src/)
+   # Use full paths for the following as it will be used to create a symlink
+@@ -75,7 +75,7 @@ else()
+   set(EXAMPLES_SYMLINK_BIN ${CMAKE_INSTALL_FULL_DOCDIR}/examples)
+   file(RELATIVE_PATH EXAMPLE_INSTALL_BIN_REL_TO_DOC
+       ${EXAMPLES_SYMLINK_BIN}
+-      ${CMAKE_INSTALL_FULL_LIBDIR}/simbody/examples/)
++      ${FREEBSD_EXAMPLESDIR})
+ endif()
+ 
+ # Set RPATH for all example targets in this directory and in subdirectories.