[OE-core] [PATCH] cmake.bbclass: call cmake with a relative path

[Clemens Lang]

From: Thomas Witt <Thomas.Witt at bmw.de>

CMake wants a relative path for CMAKE_INSTALL_*DIR, an absolute path
breaks cross-compilation. This fact is documented in the following
ticket: https://cmake.org/Bug/view.php?id=14367

$sysconfdir and $localstatedir are not relative to $prefix, so they are
still set as absolute paths. With his change ${PROJECT}Targets.cmake
that are generated by cmakes "export" function will contain relative
paths instead of absolute ones.

Signed-off-by: Thomas Witt <Thomas.Witt at bmw.de>
Signed-off-by: Clemens Lang <clemens.lang at bmw-carit.de>
---
 meta/classes/cmake.bbclass | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/meta/classes/cmake.bbclass b/meta/classes/cmake.bbclass
index b18152a..5203d8a 100644
--- a/meta/classes/cmake.bbclass
+++ b/meta/classes/cmake.bbclass
@@ -108,15 +108,15 @@ cmake_do_configure() {
 	  ${OECMAKE_SITEFILE} \
 	  ${OECMAKE_SOURCEPATH} \
 	  -DCMAKE_INSTALL_PREFIX:PATH=${prefix} \
-	  -DCMAKE_INSTALL_BINDIR:PATH=${bindir} \
-	  -DCMAKE_INSTALL_SBINDIR:PATH=${sbindir} \
-	  -DCMAKE_INSTALL_LIBEXECDIR:PATH=${libexecdir} \
+	  -DCMAKE_INSTALL_BINDIR:PATH=${@os.path.relpath(d.getVar('bindir', True), d.getVar('prefix', True))} \
+	  -DCMAKE_INSTALL_SBINDIR:PATH=${@os.path.relpath(d.getVar('sbindir', True), d.getVar('prefix', True))} \
+	  -DCMAKE_INSTALL_LIBEXECDIR:PATH=${@os.path.relpath(d.getVar('libexecdir', True), d.getVar('prefix', True))} \
 	  -DCMAKE_INSTALL_SYSCONFDIR:PATH=${sysconfdir} \
-	  -DCMAKE_INSTALL_SHAREDSTATEDIR:PATH=${sharedstatedir} \
+	  -DCMAKE_INSTALL_SHAREDSTATEDIR:PATH=${@os.path.relpath(d.getVar('sharedstatedir', True), d.  getVar('prefix', True))} \
 	  -DCMAKE_INSTALL_LOCALSTATEDIR:PATH=${localstatedir} \
-	  -DCMAKE_INSTALL_LIBDIR:PATH=${libdir} \
-	  -DCMAKE_INSTALL_INCLUDEDIR:PATH=${includedir} \
-	  -DCMAKE_INSTALL_DATAROOTDIR:PATH=${datadir} \
+	  -DCMAKE_INSTALL_LIBDIR:PATH=${@os.path.relpath(d.getVar('libdir', True), d.getVar('prefix', True))} \
+	  -DCMAKE_INSTALL_INCLUDEDIR:PATH=${@os.path.relpath(d.getVar('includedir', True), d.getVar('prefix', True))} \
+	  -DCMAKE_INSTALL_DATAROOTDIR:PATH=${@os.path.relpath(d.getVar('datadir', True), d.getVar('prefix', True))} \
 	  -DCMAKE_INSTALL_SO_NO_EXE=0 \
 	  -DCMAKE_TOOLCHAIN_FILE=${WORKDIR}/toolchain.cmake \
 	  -DCMAKE_VERBOSE_MAKEFILE=1 \
-- 
2.9.3