[OE-core] [PATCH 2/6] gcc: use relative path for configure script

[Hongxu Jia]

The absolute path (/path/to/configure) caused __FILE__ to be
an absolute path.

If 'assert' invoked, it uses __FILE__, and build path would be in elf files.
In assert.h
...
.# define assert(expr)                                                   \
  ((expr)                                                               \
   ? __ASSERT_VOID_CAST (0)                                             \
   : __assert_fail (__STRING(expr), __FILE__, __LINE__, __ASSERT_FUNCTION))
...

Which triggered buildpaths QA issue:
...
| libgcc-5.3.0: File work/core2-64-poky-linux/libgcc/5.3.0-r0/packages-split/
libgcc-dev/usr/lib64/x86_64-poky-linux/5.3.0/libgcc.a in package contained
reference to tmpdir [buildpaths]
...

Use relative path to run configure can fix the problem.

[YOCTO #7058]

Signed-off-by: Hongxu Jia <hongxu.jia at windriver.com>
---
 meta/recipes-devtools/gcc/gcc-runtime.inc    | 3 ++-
 meta/recipes-devtools/gcc/gcc-sanitizers.inc | 3 ++-
 meta/recipes-devtools/gcc/libgcc-common.inc  | 3 ++-
 meta/recipes-devtools/gcc/libgfortran.inc    | 3 ++-
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/meta/recipes-devtools/gcc/gcc-runtime.inc b/meta/recipes-devtools/gcc/gcc-runtime.inc
index f20d298..844149f 100644
--- a/meta/recipes-devtools/gcc/gcc-runtime.inc
+++ b/meta/recipes-devtools/gcc/gcc-runtime.inc
@@ -29,7 +29,8 @@ do_configure () {
 		mkdir -p ${B}/$target/$d/
 		cd ${B}/$target/$d/
 		chmod a+x ${S}/$d/configure
-		${S}/$d/configure ${CONFIGUREOPTS} ${EXTRA_OECONF}
+		relpath=${@os.path.relpath("${S}/$d", "${B}/$target/$d")}
+		$relpath/configure ${CONFIGUREOPTS} ${EXTRA_OECONF}
 	done
 }
 
diff --git a/meta/recipes-devtools/gcc/gcc-sanitizers.inc b/meta/recipes-devtools/gcc/gcc-sanitizers.inc
index 03627ff..6091a0b 100644
--- a/meta/recipes-devtools/gcc/gcc-sanitizers.inc
+++ b/meta/recipes-devtools/gcc/gcc-sanitizers.inc
@@ -23,7 +23,8 @@ do_configure () {
     mkdir -p ${B}/$target/libsanitizer/
     cd ${B}/$target/libsanitizer/
     chmod a+x ${S}/libsanitizer/configure
-    ${S}/libsanitizer/configure ${CONFIGUREOPTS} ${EXTRA_OECONF}
+    relpath=${@os.path.relpath("${S}/libsanitizer", "${B}/$target/libsanitizer")}
+    $relpath/configure ${CONFIGUREOPTS} ${EXTRA_OECONF}
     # Easiest way to stop bad RPATHs getting into the library since we have a
     # broken libtool here
     sed -i -e 's/hardcode_into_libs=yes/hardcode_into_libs=no/' ${B}/$target/libsanitizer/libtool
diff --git a/meta/recipes-devtools/gcc/libgcc-common.inc b/meta/recipes-devtools/gcc/libgcc-common.inc
index b09ea65..dae07e9 100644
--- a/meta/recipes-devtools/gcc/libgcc-common.inc
+++ b/meta/recipes-devtools/gcc/libgcc-common.inc
@@ -12,7 +12,8 @@ do_configure () {
 	mkdir -p ${B}/$target/${BPN}/
 	cd ${B}/${BPN}
 	chmod a+x ${S}/${BPN}/configure
-	${S}/${BPN}/configure ${CONFIGUREOPTS} ${EXTRA_OECONF}
+	relpath=${@os.path.relpath("${S}/${BPN}", "${B}/${BPN}")}
+	$relpath/configure ${CONFIGUREOPTS} ${EXTRA_OECONF}
 }
 
 do_compile () {
diff --git a/meta/recipes-devtools/gcc/libgfortran.inc b/meta/recipes-devtools/gcc/libgfortran.inc
index e42843d..58ceb2e 100644
--- a/meta/recipes-devtools/gcc/libgfortran.inc
+++ b/meta/recipes-devtools/gcc/libgfortran.inc
@@ -15,7 +15,8 @@ do_configure () {
 	mkdir -p ${B}/$target/libgfortran/
 	cd ${B}/$target/libgfortran/
 	chmod a+x ${S}/libgfortran/configure
-	${S}/libgfortran/configure ${CONFIGUREOPTS} ${EXTRA_OECONF}
+	relpath=${@os.path.relpath("${S}/libgfortran", "${B}/$target/libgfortran")}
+	$relpath/configure ${CONFIGUREOPTS} ${EXTRA_OECONF}
 	# Easiest way to stop bad RPATHs getting into the library since we have a
 	# broken libtool here
 	sed -i -e 's/hardcode_into_libs=yes/hardcode_into_libs=no/' ${B}/$target/libgfortran/libtool
-- 
1.9.1