patch-src_Makefile.am

--- src/Makefile.am.orig	2023-12-14 01:43:09 UTC
+++ src/Makefile.am
@@ -118,7 +118,7 @@ fort_CFLAGS  = -Wall -Wpedantic
 # Feel free to temporarily remove this one if you're not using gcc 7.3.0.
 #fort_CFLAGS += $(GCC_WARNS)
 fort_CFLAGS += -std=c99 -D_POSIX_C_SOURCE=200809 -D_XOPEN_SOURCE=700
-fort_CFLAGS += -O2 -g $(FORT_FLAGS) ${XML2_CFLAGS}
+fort_CFLAGS += -O2 -g $(FORT_FLAGS) ${XML2_CFLAGS} ${JANSSON_CFLAGS}
 if BACKTRACE_ENABLED
 fort_CFLAGS += -DBACKTRACE_ENABLED
 endif