From c3b2892ef98e67dcd4443386c0ba7261bb1c6527 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=A1bor=20Cs=C3=A1rdi?= <csardi.gabor@gmail.com>
Date: Wed, 23 Oct 2024 12:55:20 +0200
Subject: [PATCH] Fix install on FreeBSD

Need a configure script, unfortunately.
---
 .Rbuildignore   |  1 +
 .gitignore      |  1 +
 DESCRIPTION     |  1 +
 Makefile        |  5 ---
 cleanup         |  3 ++
 configure       | 88 +++++++++++++++++++++++++++++++++++++++++++++++++
 configure.win   |  3 ++
 src/Makevars    |  1 -
 src/Makevars.in |  1 +
 src/rping.c     |  1 +
 10 files changed, 99 insertions(+), 6 deletions(-)
 delete mode 100644 Makefile
 create mode 100755 cleanup
 create mode 100755 configure
 create mode 100755 configure.win
 delete mode 100644 src/Makevars
 create mode 100644 src/Makevars.in

diff --git a/.Rbuildignore b/.Rbuildignore
index 6ea7e0e..b003cdb 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -15,3 +15,4 @@
 ^pkgdown$
 ^\.github$
 ^codecov\.yml$
+^src/Makevars$
diff --git a/.gitignore b/.gitignore
index 5a074d7..1dd1f75 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
 /revdep
 .Rproj.user
 docs
+/src/Makevars
diff --git a/DESCRIPTION b/DESCRIPTION
index 093f193..cdc9bb9 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -26,3 +26,4 @@ Config/testthat/edition: 3
 Encoding: UTF-8
 Roxygen: list(markdown = TRUE)
 RoxygenNote: 7.2.3
+Biarch: true
diff --git a/Makefile b/Makefile
deleted file mode 100644
index dd7836b..0000000
--- a/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-
-all: README.md
-
-README.md: README.Rmd
-	Rscript -e "library(knitr); knit('$<', output = '$@', quiet = TRUE)"
diff --git a/cleanup b/cleanup
new file mode 100755
index 0000000..030f84d
--- /dev/null
+++ b/cleanup
@@ -0,0 +1,3 @@
+#' !/usr/bin/env sh
+
+rm -f src/Makevars
diff --git a/configure b/configure
new file mode 100755
index 0000000..71336fa
--- /dev/null
+++ b/configure
@@ -0,0 +1,88 @@
+#! /usr/bin/env sh
+
+# Check that this is not just ./configure. We need to run this
+# from R CMD INSTALL, to have the R env vars set.
+
+if [ -z "$R_HOME" ]; then
+    echo >&2 R_HOME is not set, are you running R CMD INSTALL?
+    exit 1
+fi
+
+# Find the R binary we need to use. This is a bit trickier on
+# Windows, because it has two architectures. On windows R_ARCH_BIN
+# is set, so this should work everywhere.
+RBIN="${R_HOME}/bin${R_ARCH_BIN}/R"
+
+# ------------------------------------------------------------------------
+# Detect system
+# ------------------------------------------------------------------------
+
+unset POSIX
+if [ "$R_OSTYPE" = "unix" ]; then
+    UNAME=`uname`
+else
+    UNAME=Windows
+fi
+
+if [ -n "$EMSCRIPTEN" ] && [ -n "$CROSS_COMPILE" ]; then
+    UNAME=Emscripten
+fi
+
+unset WINDOWS
+if [ "$R_OSTYPE" = "windows" ]; then WINDOWS=true; fi
+
+unset LINUX
+if [ "$UNAME" = "Linux" ]; then LINUX=true; POSIX=true; fi
+
+unset MACOS
+if [ "$UNAME" = "Darwin" ]; then MACOS=true; POSIX=true; fi
+
+unset FREEBSD
+if [ "$UNAME" = "FreeBSD" ]; then FREEBSD=true; POSIX=true; fi
+
+unset OPENBSD
+## if [ "$UNAME" = "OpenBSD" ]; then OPENBSD=true; POSIX=true; fi
+
+unset NETBSD
+## if [ "$UNAME" = "NetBSD" ]; then NETBSD=true; POSIX=true; fi
+
+unset BSD
+if [ -n "$FREEBSD" ] || [ -n "$OPENBSD" ] || [ -n "$NETBSD" ]; then
+    BSD=true
+fi
+
+unset SUNOS
+## if [ "UNAME" = "SunOS" ]; then SUNOS=true; POSIX=true; fi
+
+unset AIX
+##  if [ "UNAME" = "AIX" ]; then AIX=true; POSIX=true; fi
+
+# ------------------------------------------------------------------------
+# Set source files, macros, libs, compile flags
+# ------------------------------------------------------------------------
+
+if [ -n "$WINDOWS" ]; then
+    LIBRARIES=
+
+elif [ -n "$FREEBSD" ]; then
+    LIBRARIES=
+
+else
+    LIBRARIES=resolv
+fi
+
+# ------------------------------------------------------------------------
+# Create Makevars file
+# ------------------------------------------------------------------------
+
+# OBJECTS (= source files)
+# LIBRARIES -> PKG_LIBS
+
+LIBS=`for l in $LIBRARIES; do echo "-l${l}"; done | tr "\n", " "`
+LIBS="${LIBS} $FRAMEWORKS"
+
+cat src/Makevars.in | \
+    sed "s|@OBJECTS@|${OBJECTS}|" | \
+    sed "s/@LIBS@/${LIBS}/" | \
+    sed "s/@TARGETS@/${TARGETS}/" | \
+    sed "s|@EXTRA@|${EXTRA}|" > src/Makevars
diff --git a/configure.win b/configure.win
new file mode 100755
index 0000000..994f9fd
--- /dev/null
+++ b/configure.win
@@ -0,0 +1,3 @@
+#! /usr/bin/env sh
+
+sh ./configure
diff --git a/src/Makevars b/src/Makevars
deleted file mode 100644
index b29f8bd..0000000
--- a/src/Makevars
+++ /dev/null
@@ -1 +0,0 @@
-PKG_LIBS = -lresolv
diff --git a/src/Makevars.in b/src/Makevars.in
new file mode 100644
index 0000000..ee8b035
--- /dev/null
+++ b/src/Makevars.in
@@ -0,0 +1 @@
+PKG_LIBS = @LIBS@
diff --git a/src/rping.c b/src/rping.c
index 0cb19ef..a9ab8cb 100644
--- a/src/rping.c
+++ b/src/rping.c
@@ -35,6 +35,7 @@ void usleep(__int64 usec) {
 #  include <unistd.h>
 #  include <netdb.h>
 #  include <arpa/inet.h>
+#  include <netinet/in.h>
 #  include <fcntl.h>
 #  define WINSTARTUP()
 #  define WINCLEANUP()