[OE-core] [PATCH] cmake: Avoid passing empty prefix to os.path.relpath

[Mike Crowe]

With meta-micro, ${prefix} is the empty string. This means that
CMAKE_INSTALL_BINDIR:PATH and friends end up containing paths starting with
many instances of "../", presumably due to os.path.relpath attempting to
find its way to the current directory.

Let's avoid this by ensuring that the root path always ends in a slash. If
it already ends in a slash then adding another one shouldn't cause any
problems.
---
 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 ac2c1519b0..59797e121b 100644
--- a/meta/classes/cmake.bbclass
+++ b/meta/classes/cmake.bbclass
@@ -119,15 +119,15 @@ cmake_do_configure() {
 	  $oecmake_sitefile \
 	  ${OECMAKE_SOURCEPATH} \
 	  -DCMAKE_INSTALL_PREFIX:PATH=${prefix} \
-	  -DCMAKE_INSTALL_BINDIR:PATH=${@os.path.relpath(d.getVar('bindir'), d.getVar('prefix'))} \
-	  -DCMAKE_INSTALL_SBINDIR:PATH=${@os.path.relpath(d.getVar('sbindir'), d.getVar('prefix'))} \
-	  -DCMAKE_INSTALL_LIBEXECDIR:PATH=${@os.path.relpath(d.getVar('libexecdir'), d.getVar('prefix'))} \
+	  -DCMAKE_INSTALL_BINDIR:PATH=${@os.path.relpath(d.getVar('bindir'), d.getVar('prefix') + '/')} \
+	  -DCMAKE_INSTALL_SBINDIR:PATH=${@os.path.relpath(d.getVar('sbindir'), d.getVar('prefix') + '/')} \
+	  -DCMAKE_INSTALL_LIBEXECDIR:PATH=${@os.path.relpath(d.getVar('libexecdir'), d.getVar('prefix') + '/')} \
 	  -DCMAKE_INSTALL_SYSCONFDIR:PATH=${sysconfdir} \
-	  -DCMAKE_INSTALL_SHAREDSTATEDIR:PATH=${@os.path.relpath(d.getVar('sharedstatedir'), d.  getVar('prefix'))} \
+	  -DCMAKE_INSTALL_SHAREDSTATEDIR:PATH=${@os.path.relpath(d.getVar('sharedstatedir'), d.  getVar('prefix') + '/')} \
 	  -DCMAKE_INSTALL_LOCALSTATEDIR:PATH=${localstatedir} \
-	  -DCMAKE_INSTALL_LIBDIR:PATH=${@os.path.relpath(d.getVar('libdir'), d.getVar('prefix'))} \
-	  -DCMAKE_INSTALL_INCLUDEDIR:PATH=${@os.path.relpath(d.getVar('includedir'), d.getVar('prefix'))} \
-	  -DCMAKE_INSTALL_DATAROOTDIR:PATH=${@os.path.relpath(d.getVar('datadir'), d.getVar('prefix'))} \
+	  -DCMAKE_INSTALL_LIBDIR:PATH=${@os.path.relpath(d.getVar('libdir'), d.getVar('prefix') + '/')} \
+	  -DCMAKE_INSTALL_INCLUDEDIR:PATH=${@os.path.relpath(d.getVar('includedir'), d.getVar('prefix') + '/')} \
+	  -DCMAKE_INSTALL_DATAROOTDIR:PATH=${@os.path.relpath(d.getVar('datadir'), d.getVar('prefix') + '/')} \
 	  -DCMAKE_INSTALL_SO_NO_EXE=0 \
 	  -DCMAKE_TOOLCHAIN_FILE=${WORKDIR}/toolchain.cmake \
 	  -DCMAKE_VERBOSE_MAKEFILE=1 \
-- 
2.11.0