From 1602a6531da2f9a0c767c6a6f9342c60f7ed0300 Mon Sep 17 00:00:00 2001
From: Yaakov Selkowitz <yselkowi@redhat.com>
Date: Tue, 19 Dec 2023 19:42:18 -0500
Subject: [PATCH] Fix for
 https://fedoraproject.org/wiki/Changes/PortingToModernC

configure uses AC_SYS_LARGEFILE to determine whether to define
_FILE_OFFSET_BITS=64, in which case fseeko64 and lseek64 are used in
place of fseeko and lseek.  However, this is technically backwards, as
_FILE_OFFSET_BITS=64 is supposed to be used to override fseeko etc. with
64-bit variants even on 32-bit systems, and the explicit 64 variants are
correctly guarded by _LARGEFILE64_SOURCE.  This results in implicit
declarations in 32-bit systems (i686) which recently became errors.
---
 libcdio.spec | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libcdio.spec b/libcdio.spec
index be9c68d..7544d87 100644
--- a/libcdio.spec
+++ b/libcdio.spec
@@ -41,6 +41,10 @@ This package contains header files and libraries for %{name}.
 iconv -f ISO88591 -t utf-8 -o THANKS.utf8 THANKS && mv THANKS.utf8 THANKS
 
 %build
+%ifarch %{ix86}
+# avoid implicit declaration of fseeko64, lseek64
+export CPPFLAGS="$CPPFLAGS -D_LARGEFILE64_SOURCE"
+%endif
 %configure \
 	--disable-vcd-info \
 	--disable-dependency-tracking \