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authorpatacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679>2011-10-07 17:21:16 +0000
committerpatacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679>2011-10-07 17:21:16 +0000
commitd69c8839f26d5d6cc677e79188dcff7198fff13c (patch)
tree4e08a9a8fb1c16df0a2de35e3e53d0f71e5c6d40 /misc
parente1ae0eae360598e3e9b4b27e044f9273eea6cc34 (diff)
Fix STM32 build with with no RTC; Fix STM3210E-EVAL color correction for the RenesasSP LCD
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4030 7fd9a85b-ad96-42d3-883c-3090e2eb8679
Diffstat (limited to 'misc')
-rw-r--r--misc/buildroot/configs/README.txt53
1 files changed, 53 insertions, 0 deletions
diff --git a/misc/buildroot/configs/README.txt b/misc/buildroot/configs/README.txt
index 5239c1354f..f37bcf1788 100644
--- a/misc/buildroot/configs/README.txt
+++ b/misc/buildroot/configs/README.txt
@@ -1,3 +1,15 @@
+README
+^^^^^^
+
+CONTENTS
+^^^^^^^^
+
+ o AVAILABLE CONFIGURATIONS
+ o GENERAL BUILD STEPS
+ o FAQ
+ o Cygwin GCC BUILD NOTES
+ o Building GDB Under Cygwin
+
AVAILABLE CONFIGURATIONS
^^^^^^^^^^^^^^^^^^^^^^^^
@@ -198,6 +210,47 @@ Q: How do I build the NuttX toolchain under Cygwin?
A: See below...
+Q: NuttX directory ../../nuttx does not exist
+
+A: The default path to the nuttx directory is $(TOPDIR)/../../nuttx where
+ TOPDIR holds the path to the buildroot directory. If you checkout the
+ entire SVN tree then that will be the correct location of the nuttx
+ directory.
+
+ If you see this error, it just means that nuttx is not in that expected,
+ default location. In that case, use 'make config' or 'make menuconfig'
+ to edit the configuration. Find the option to set the path to NuttX
+ and set it to the correct location for your build environment.
+
+Q: Some of my libraries like GMP and MPFR are in non-standard locations the
+ GCC build can't file them:
+
+ checking for correct version of mpfr.h... no
+ configure: error: Building GCC requires GMP 4.1+ and MPFR 2.3.0+.
+
+A: http://tech.groups.yahoo.com/group/nuttx/message/1160
+
+ "I think that you can specify the path to GMP and MPFR. I think that GCC
+ has some special configuration command line options to support this. I
+ can't remember exactly and I don't have an unpacked version of GCC at
+ hand.
+
+ "Try this: Go to the buildroot/toolchain_build_nofpu_arm/gcc-x.x directory
+ and type:
+
+ ./configure --help
+
+ "That should list all of the GCC configuration options. I bet you will see
+ (near the bottom) some options to set the path to these tools.
+
+ "What you will have to do then is to modify the script at:
+
+ buildroot/toolchain/gcc/gcc-nuttx-4.x.mk
+
+ "You will see that there are several places where $(GCC_DIR)/configure is
+ invoked. I think you would have to hard code those path options into those
+ configure commands."
+
Cygwin GCC BUILD NOTES
^^^^^^^^^^^^^^^^^^^^^^