libraries/libixion: Fix build with gcc in 14.2 and current.

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

libraries/libixion/fmt.patch

@@ -0,0 +1,24 @@
+From 0891528c3ebbf59b0634d01b57499183bac1974b Mon Sep 17 00:00:00 2001
+From: orbea <orbea@riseup.net>
+Date: Mon, 23 Sep 2019 12:09:37 -0700
+Subject: [PATCH] Fix build with gcc and an external fmt.
+
+---
+ src/libixion/Makefile.am | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/libixion/Makefile.am b/src/libixion/Makefile.am
+index 1121e5f0..bb310b3f 100644
+--- a/src/libixion/Makefile.am
++++ b/src/libixion/Makefile.am
+@@ -3,6 +3,7 @@ AM_CPPFLAGS = \
+ 	-I$(top_srcdir)/include \
+ 	-I$(top_srcdir)/src/include \
+ 	-DIXION_BUILD \
++	-DFMT_HEADER_ONLY \
+ 	$(MDDS_CFLAGS) \
+ 	$(SPDLOG_CFLAGS) \
+ 	$(BOOST_CPPFLAGS)
+-- 
+2.22.0
+

libraries/libixion/libixion.SlackBuild

@@ -24,7 +24,7 @@
 
 PRGNAM=libixion
 VERSION=${VERSION:-0.15.0}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
@@ -71,8 +71,16 @@ find -L . \
 
 # Fix build with clang.
 # https://gitlab.com/ixion/ixion/merge_requests/9
+# https://gitlab.com/ixion/ixion/commit/a8fe2c542b16ee30723ab3d7f3b643ee479e9723
 sed -i 's/nullptr_t/std::nullptr_t/' include/ixion/model_context.hpp
 
+# Fix build with gcc and an external fmt.
+# https://gitlab.com/ixion/ixion/merge_requests/10
+# https://gitlab.com/ixion/ixion/commit/0891528c3ebbf59b0634d01b57499183bac1974b
+patch -p1 < $CWD/fmt.patch
+
+autoreconf -fi
+
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \
 ./configure \