gentoo-overlay/dev-libs/libbpf/files/libbpf-9999-paths.patch

--- a/Makefile
+++ b/Makefile
@@ -76,7 +76,7 @@ endif
 PREFIX ?= /usr
 LIBDIR ?= $(PREFIX)/$(LIBSUBDIR)
 INCLUDEDIR ?= $(PREFIX)/include
-UAPIDIR ?= $(PREFIX)/include
+UAPIDIR ?= $(PREFIX)/include/bpf/uapi
 
 TAGS_PROG := $(if $(shell which etags 2>/dev/null),etags,ctags)
 
@@ -101,6 +101,7 @@ $(OBJDIR)/libbpf.so.$(LIBBPF_VERSION): $(SHARED_OBJS)
 $(OBJDIR)/libbpf.pc:
 	$(Q)sed -e "s|@PREFIX@|$(PREFIX)|" \
 		-e "s|@LIBDIR@|$(LIBDIR_PC)|" \
+		-e "s|@UAPIDIR@|$(UAPIDIR)|" \
 		-e "s|@VERSION@|$(LIBBPF_VERSION)|" \
 		< libbpf.pc.template > $@
 
--- a/libbpf.pc.template
+++ b/libbpf.pc.template
@@ -3,10 +3,11 @@
 prefix=@PREFIX@
 libdir=@LIBDIR@
 includedir=${prefix}/include
+uapidir=@UAPIDIR@
 
 Name: libbpf
 Description: BPF library
 Version: @VERSION@
 Libs: -L${libdir} -lbpf
 Requires.private: libelf zlib
-Cflags: -I${includedir}
+Cflags: -I${includedir} -I${uapidir}