gcc 15.2 에서 링크 오류
다음과 같이 해결
<codeprism lang=c>
diff -urN libfpx-1.3.1-10/jpeg/ejpeg.h libfpx-1.3.1-10-1/jpeg/ejpeg.h
--- libfpx-1.3.1-10/jpeg/ejpeg.h	2013-09-03 00:45:00.000000000 +0900
+++ libfpx-1.3.1-10-1/jpeg/ejpeg.h	2026-02-02 22:28:59.517751480 +0900
@@ -32,4 +32,4 @@
 #define IMG_FORMAT_411  0x05   /* Three-component 4:1:1  image */
 
 JPEGEXPORT
-int No_JPEG_Header_Flag;
+extern int No_JPEG_Header_Flag;
diff -urN libfpx-1.3.1-10/jpeg/public.c libfpx-1.3.1-10-1/jpeg/public.c
--- libfpx-1.3.1-10/jpeg/public.c	2013-09-03 00:47:00.000000000 +0900
+++ libfpx-1.3.1-10-1/jpeg/public.c	2026-02-02 22:30:45.665836623 +0900
@@ -23,6 +23,7 @@
 #include "jpegconf.h"
 
 #include "ejpeg.h"
+int No_JPEG_Header_Flag;
 
 #include "enctile.h"
 #include "encoder.h"</codeprism>

또는 플래그를 이용해서 다음과 같이
<codeprism lang=bash>
make LDFLAGS="-Wl,-z,muldefs"
</codeprism>
또는
<codeprism lang=bash>
make CFLAGS="-fcommon" CXXFLAGS="-fcommon"
</codeprism>