nspr, nss: use ${includedir}/nspr like e.g. ubuntu does

* instead of installing all 51 nspr header files directly in ${includedir}

* ubuntu uses /usr/include/nspr as well as shown in:
  https://packages.ubuntu.com/xenial/amd64/libnspr4-dev/filelist
  and some components assume the same path

* update nss configure to find them, similar change might be needed in
  mozjs and ecryptfs-utils

(From OE-Core rev: 274128830a9d52bdd2827cc0a323d575025ce62f)

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/nspr/nspr/nspr.pc.in

@@ -8,4 +8,4 @@ Name: NSPR
 Description: The Netscape Portable Runtime
 Version: NSPRVERSION
 Libs: -L${libdir} -lplds4 -lplc4 -lnspr4 -lpthread -ldl
-Cflags:
+Cflags: -I${includedir}/nspr

meta/recipes-support/nspr/nspr_4.24.bb

@@ -156,6 +156,10 @@ MULTILIB_SCRIPTS = "${PN}-dev:${bindir}/nspr-config"
 PACKAGECONFIG ??= "${@bb.utils.filter('DISTRO_FEATURES', 'ipv6', d)}"
 PACKAGECONFIG[ipv6] = "--enable-ipv6,--disable-ipv6,"
 
+# Do not install nspr in usr/include, but in usr/include/nspr, the
+# preferred path upstream.
+EXTRA_OECONF += "--includedir=${includedir}/nspr"
+
 do_compile_prepend() {
 	oe_runmake CROSS_COMPILE=1 CFLAGS="-DXP_UNIX ${BUILD_CFLAGS}" LDFLAGS="" CC="${BUILD_CC}" -C config export
 }

meta/recipes-support/nss/nss/nss.pc.in

@@ -7,5 +7,5 @@ Name: NSS
 Description: Network Security Services
 Version: %NSS_VERSION%
 Requires: nspr >= %NSPR_VERSION%
-Libs: -lssl3 -lsmime3 -lnss3 -lsoftokn3 -lnssutil3
+Libs: -L${libdir} -lssl3 -lsmime3 -lnss3 -lsoftokn3 -lnssutil3
 Cflags: -IOEINCDIR

meta/recipes-support/nss/nss_3.49.1.bb

@@ -52,7 +52,7 @@ do_configure_prepend_libc-musl () {
 }
 
 do_compile_prepend_class-native() {
-    export NSPR_INCLUDE_DIR=${STAGING_INCDIR_NATIVE}
+    export NSPR_INCLUDE_DIR=${STAGING_INCDIR_NATIVE}/nspr
     export NSPR_LIB_DIR=${STAGING_LIBDIR_NATIVE}
     export NSS_ENABLE_WERROR=0
 }
@@ -67,6 +67,8 @@ do_compile_prepend_class-native() {
 }
 
 do_compile() {
+    export NSPR_INCLUDE_DIR=${STAGING_INCDIR}/nspr
+
     export CROSS_COMPILE=1
     export NATIVE_CC="${BUILD_CC}"
     # Additional defines needed on Centos 7