diff -Nru fastp-0.23.2+dfsg/debian/changelog fastp-0.23.2+dfsg/debian/changelog
--- fastp-0.23.2+dfsg/debian/changelog	2021-12-07 21:34:23.000000000 +0000
+++ fastp-0.23.2+dfsg/debian/changelog	2021-12-11 15:48:03.000000000 +0000
@@ -1,3 +1,13 @@
+fastp (0.23.2+dfsg-2) unstable; urgency=medium
+
+  * Team upload.
+
+  [ Aurelien Jarno ]
+  * Fix build on riscv64.
+    Closes: #1001520
+
+ -- Andreas Tille <tille@debian.org>  Sat, 11 Dec 2021 16:48:03 +0100
+
 fastp (0.23.2+dfsg-1) unstable; urgency=medium
 
   * New upstream version
diff -Nru fastp-0.23.2+dfsg/debian/patches/fix-riscv64.patch fastp-0.23.2+dfsg/debian/patches/fix-riscv64.patch
--- fastp-0.23.2+dfsg/debian/patches/fix-riscv64.patch	1970-01-01 00:00:00.000000000 +0000
+++ fastp-0.23.2+dfsg/debian/patches/fix-riscv64.patch	2021-12-11 15:48:03.000000000 +0000
@@ -0,0 +1,18 @@
+Description: Correctly link the binary with -pthread, to include -latomic when needed.
+Author: Aurelien Jarno <aurel32@debian.org>
+Last-Update: 2021-12-11
+
+--- fastp-0.23.2+dfsg.orig/Makefile
++++ fastp-0.23.2+dfsg/Makefile
+@@ -16,9 +16,9 @@ BIN_TARGET := ${TARGET}
+ 
+ CXX ?= g++
+ CXXFLAGS += -std=c++11 -pthread -g -O3 -I${DIR_INC} $(foreach includedir,$(INCLUDE_DIRS),-I$(includedir))
+-LIBS := -lisal -ldeflate -lpthread
++LIBS := -lisal -ldeflate
+ STATIC_FLAGS := -static -Wl,--no-as-needed -pthread
+-LDFLAGS += $(foreach librarydir,$(LIBRARY_DIRS),-L$(librarydir)) $(LIBS)
++LDFLAGS += $(foreach librarydir,$(LIBRARY_DIRS),-L$(librarydir)) $(LIBS) -pthread
+ STATIC_LD_FLAGS := $(foreach librarydir,$(LIBRARY_DIRS),-L$(librarydir)) $(STATIC_FLAGS) $(LIBS) $(STATIC_LD_FLAGS)
+ 
+ 
diff -Nru fastp-0.23.2+dfsg/debian/patches/series fastp-0.23.2+dfsg/debian/patches/series
--- fastp-0.23.2+dfsg/debian/patches/series	2021-12-07 21:34:23.000000000 +0000
+++ fastp-0.23.2+dfsg/debian/patches/series	2021-12-11 15:48:03.000000000 +0000
@@ -1,2 +1,3 @@
 makefile.patch
 fix-i386.patch
+fix-riscv64.patch