clamav: Fix compiling

glibc headers were not correctly included

lfs/clamav

@@ -81,6 +81,7 @@ $(subst %,%_MD5,$(objects)) :
 $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 	@$(PREBUILD)
 	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)
+	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/clamav/llvm-glibc.patch
 	cd $(DIR_APP) && ./configure \
 		--prefix=/usr \
 		--sysconfdir=/var/ipfire/clamav \

src/patches/clamav/llvm-glibc.patch

@@ -0,0 +1,12 @@
+Index: clamav-0.97.3/libclamav/c++/llvm/lib/ExecutionEngine/JIT/Intercept.cpp
+===================================================================
+--- clamav-0.97.3.orig/libclamav/c++/llvm/lib/ExecutionEngine/JIT/Intercept.cpp
++++ clamav-0.97.3/libclamav/c++/llvm/lib/ExecutionEngine/JIT/Intercept.cpp
+@@ -52,6 +52,7 @@ static void runAtExitHandlers() {
+ #include <sys/stat.h>
+ #endif
+ #include <fcntl.h>
++#include <unistd.h>
+ /* stat functions are redirecting to __xstat with a version number.  On x86-64 
+  * linking with libc_nonshared.a and -Wl,--export-dynamic doesn't make 'stat' 
+  * available as an exported symbol, so we have to add it explicitly.