From 635dd9a3065ed88e1741e6b963044b80e913f96a Mon Sep 17 00:00:00 2001
From: Remi Collet <remi@remirepo.net>
Date: Tue, 24 Mar 2020 08:01:01 +0100
Subject: [PATCH] distribute getlib.sh

---
 config/Makefile.am | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config/Makefile.am b/config/Makefile.am
index 122287ee..6416dda4 100644
--- a/config/Makefile.am
+++ b/config/Makefile.am
@@ -1,5 +1,5 @@
 ## Process this file with automake to produce Makefile.in -*-Makefile-*-
-EXTRA_DIST = gdlib.pc.cmake gdlib.pc.in getver.pl
+EXTRA_DIST = gdlib.pc.cmake gdlib.pc.in getlib.sh getver.pl
 
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = gdlib.pc

diff -ruN a/config/getlib.sh b/config/getlib.sh
--- a/config/getlib.sh	1970-01-01 00:00:00.000000000 -0000
+++ b/config/getlib.sh	2020-05-05 17:37:31.638896089 -0000
@@ -0,0 +1,43 @@
+#!/bin/sh
+
+GETVER="${0%/*}/getver.pl"
+GDLIB_MAJOR=$("${GETVER}" MAJOR)
+GDLIB_MINOR=$("${GETVER}" MINOR)
+GDLIB_REVISION=$("${GETVER}" RELEASE)
+
+# Dynamic library version information
+# See http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
+
+GDLIB_LT_CURRENT=3
+# This is the version where the soname (current above) changes.  We use it
+# to reset the revision base back to zero.  It's a bit of a pain, but some
+# systems restrict the revision range below to [0..255] (like OS X).
+GDLIB_PREV_MAJOR=2
+GDLIB_PREV_MINOR=2
+# This isn't 100% correct, but it tends to be a close enough approximation
+# for how we manage the codebase.  It's rare to do a release that doesn't
+# modify the library since this project is centered around the library.
+GDLIB_LT_REVISION=$(( ((GDLIB_MAJOR - GDLIB_PREV_MAJOR) << 6) | ((GDLIB_MINOR - GDLIB_PREV_MINOR) << 3) | GDLIB_REVISION ))
+GDLIB_LT_AGE=0
+
+# The first three fields we feed into libtool and the OS target determines how
+# they get used.  The last two fields we feed into cmake.  We use the same rules
+# as Linux SONAME versioning in libtool, but cmake should handle it for us.
+case $1 in
+CURRENT)
+	printf '%s' "${GDLIB_LT_CURRENT}"
+	;;
+REVISION)
+	printf '%s' "${GDLIB_LT_REVISION}"
+	;;
+AGE)
+	printf '%s' "${GDLIB_LT_AGE}"
+	;;
+VERSION)
+	printf '%s' "$(( GDLIB_LT_CURRENT - GDLIB_LT_AGE )).${GDLIB_LT_AGE}.${GDLIB_LT_REVISION}"
+	;;
+SONAME)
+	printf '%s' "$(( GDLIB_LT_CURRENT - GDLIB_LT_AGE ))"
+	;;
+esac
+
diff --git a/configure.ac b/configure.ac
index 8996053..86d0bc9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -20,7 +20,7 @@ AC_CANONICAL_HOST
 
 dnl Keep the libtool version details in an external script so cmake can
 dnl access the values too.
-define([lt_gv], [config/getlib.sh ]$1)
+define([lt_gv], [${SHELL} config/getlib.sh ]$1)
 m4_define([gd_LT_CURRENT], esyscmd(lt_gv(CURRENT)))
 m4_define([gd_LT_REVISION], esyscmd(lt_gv(REVISION)))
 m4_define([gd_LT_AGE], esyscmd(lt_gv(AGE)))