From ded3b0156ba6412a72b94b92a17a488047371018 Mon Sep 17 00:00:00 2001
From: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Date: Sat, 16 Sep 2017 13:27:16 -0500
Subject: [PATCH 1/2] Fixed build script for BSD systems

In autogen.sh, don't assume that the correct Makefile interpreter is
`make`. The syntax of the Makefile generated by autotools is not
compatible with BSD Make, and must be built with GNU Make (gmake)
instead.

In addition to detecting BSD platforms (via uname) and using gmake
instead of make, autogen.sh also generates a BSDmakefile in the
top-level directory. In its presence, BSD Make will use it instead of a
generic Makefile, and BSD users will be informed that they should use
gmake instead of make to buil the project.

Tested on FreeBSD.
---
 .gitignore |  1 +
 autogen.sh | 26 +++++++++++++++++++++++++-
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index a769a1b439..f927ce42d1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,6 +21,7 @@ a.out
 aclocal.m4
 autom4te.cache
 badinput
+BSDmakefile
 commit-stamp
 compile
 config.cache
diff --git a/autogen.sh b/autogen.sh
index d17183cca8..2fd5ac5484 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -5,7 +5,31 @@ set -xe
 type autoreconf || exit 1
 type pkg-config || exit 1
 
-ctags_files=`make -f makefiles/list-translator-input.mak --no-print-directory`
+gen_bsdmakefile() {
+	set +xe
+	echo -e '.DONE:\n\t@echo "Please use GNU Make (gmake) to build this project"\n.DEFAULT:\n\t@echo "Please use GNU Make (gmake) to build this project"' > BSDmakefile
+	set -xe
+}
+
+is_bsd() {
+	UNAME=`uname`
+	if echo $UNAME | grep -i bsd >/dev/null; then
+		#return true
+		return 0
+	else
+		#return false
+		return 1
+	fi
+}
+
+if is_bsd; then
+	MAKE="gmake"
+	gen_bsdmakefile
+else
+	MAKE="make"
+fi
+
+ctags_files=`${MAKE} -f makefiles/list-translator-input.mak --no-print-directory`
 misc/dist-test-cases > makefiles/test-cases.mak && \
     if autoreconf -vfi; then
 	if type perl > /dev/null; then

From e49db10b79e2e697c05f1550c96889457a59a67f Mon Sep 17 00:00:00 2001
From: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Date: Sat, 16 Sep 2017 14:51:06 -0500
Subject: [PATCH 2/2] Updated documentation to include BSD build instructions

---
 README.md          | 3 +--
 docs/autotools.rst | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index d67ca41ba2..a15e849485 100644
--- a/README.md
+++ b/README.md
@@ -27,8 +27,7 @@ See [Homebrew Tap for Universal Ctags](https://github.com/universal-ctags/homebr
 
 ## How to build and install ##
 
-To build with Autotools, see `docs/autotools.rst` for more information.
-(To build on GNU/Linux, Autotools is your choice.)
+To build with Autotools (GNU/Linux, \*BSD, etc.), see `docs/autotools.rst` for more information.
 To build on Windows, see `docs/windows.rst` for more information.
 To build on OSX, see `docs/osx.rst` for more information.
 
diff --git a/docs/autotools.rst b/docs/autotools.rst
index ae6402e1a0..3acdaecc2f 100644
--- a/docs/autotools.rst
+++ b/docs/autotools.rst
@@ -4,7 +4,7 @@ Like most Autotools-based projects, you need to do::
 
     $ ./autogen.sh
     $ ./configure --prefix=/where/you/want # defaults to /usr/local
-    $ make
+    $ make # under BSD, GNU Make (`gmake`) should be used instead
     $ make install # may require extra privileges depending on where to install
 
 After installation the `ctags` executable will be in `$prefix/bin/`.