From 85536328272d754277febd010e82d89b04e68b6d Mon Sep 17 00:00:00 2001
From: Jan Palus <[EMAIL REDACTED]>
Date: Sun, 10 Jul 2022 18:02:46 +0200
Subject: [PATCH] autotools: relax soname pattern for dynamic loading
SDL makes assumption that each dynamically loaded library must have
SONAME matching pattern <libname>.so.<digit>+ hence it discards any file
that has two (or more) digits after ".so". in practice however SONAME
might be in the form of ie <libname>.so.<major>.<minor>.
as a solution keep requirement for dynamically loaded files to be named
<libname>.so.* but consider all the possibilities and prefer the shortest
one.
---
configure.ac | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 0b2c7c7221b..3f390ad6691 100644
--- a/configure.ac
+++ b/configure.ac
@@ -64,6 +64,11 @@ AC_PROG_EGREP
AC_PROG_INSTALL
AC_PROG_MAKE_SET
PKG_PROG_PKG_CONFIG
+AC_PROG_AWK
+
+if test -z "$AWK"; then
+ AC_MSG_ERROR([*** Required awk tool not found!])
+fi
dnl 64-bit file offsets if possible unless --disable-largefile is specified
AC_SYS_LARGEFILE
@@ -181,7 +186,7 @@ find_lib()
host_lib_path="/usr/$base_libdir /usr/local/$base_libdir"
fi
for path in $env_lib_path $gcc_bin_path $gcc_lib_path $host_lib_path; do
- lib=[`ls -- $path/$1 2>/dev/null | sed -e '/\.so\..*\./d' -e 's,.*/,,' | sort | tail -1`]
+ lib=[`ls -- $path/$1 2>/dev/null | sed -e 's,.*/,,' | $AWK '{print length() " " $0;}' | sort -n -r | tail -1 | sed 's/^[0-9]\+ //'`]
if test x$lib != x; then
echo $lib
return