toolchain: fix using external toolchains built with buildroot
The toolchains built with buildroot use specially crafted paths for their
sysroot and prefix. Fix that by asking gcc where it finds a file we
know by relative path to the sysroot.
This has the side effect of greatly simplifying the sysroot detection
in every cases tested so far (BR toolchains, CT-NG toolchains, and
CodeSourcery toolchains).
Fixes bug #851.
Thanks Thomas Petazzoni for the hint and some testings.
Thanks Grant Edwards for the report and the comments.
Signed-off-by: Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
diff --git a/CHANGES b/CHANGES
index 34f47a0..2ffd672 100644
--- a/CHANGES
+++ b/CHANGES
@@ -4,7 +4,7 @@
Toolchain: uClibc 0.9.30.3 / 0.9.31, older 0.9.30.x removed.
2.6.33 kernel headers, binutils 2.20.1, removed broken nios2
- support.
+ support, improved external toolchain support.
X.org updated to 7.5.
@@ -23,6 +23,7 @@
#800: [PATCH] iperf update to 2.0.4
#805: [PATCH] mdadm - version update
#817: integrator926_defconfig uses unsupported uboot board name
+ #851: Add option to specify --sysroot value for external toolchain
#1105: Add new netperf package
#1111: Bump wget to 1.12 and migrate to Makefile.autotools.in
#1117: Bump nano to 2.2.3 and migrate to Makefile.autotools.in