用waf交叉编译ARM9的buildroot包

Question

我使用的代码来源g++精巧工具链2013年。

有一个项目，我把它集成到buildroot中(看起来很好，一切都按预期进行了调用)。

waf是可供选择的构建系统

define EEBUSRESTIFIED_CONFIGURE_CMDS
(cd "$(@D)"; \
$(TARGET_CONFIGURE_OPTS) \
CFLAGS="$(CFLAGS_FOR_BUILD)" \
LDFLAGS="--sysroot=$(STAGING_DIR)" \
LD_LIBRARY_PATH="$(STAGING_DIR)" \
PKG_CONFIG_PATH="$(STAGING_DIR)/usr/lib/pkgconfig" \
PKG_CONFIG_SYSROOT_DIR="$(STAGING_DIR)" \
./waf --dest=$(TARGET_DIR) configure)
endef

显示

Setting top to                           : /home/bernhard/buildroot-2013.08/output/build/foo-6508f5b36172ba8965372ef96fb350b413ec5d15 
Setting out to                           : /home/bernhard/buildroot-2013.08/output/build/foo-6508f5b36172ba8965372ef96fb350b413ec5d15/build 
Checking for program gcc,cc              : /home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-gcc 
Checking for program ar                  : /home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-ar 
Checking for program glib-genmarshal     : /home/bernhard/buildroot-2013.08/output/host/usr/bin/glib-genmarshal 
Checking for program perl                : /usr/bin/perl 
Checking for 'glib-mkenums'              : /home/bernhard/buildroot-2013.08/output/host/usr/bin/glib-mkenums 
Checking for program glib-compile-schemas : /home/bernhard/buildroot-2013.08/output/host/usr/bin/glib-compile-schemas 
Checking for program pkg-config           : /home/bernhard/buildroot-2013.08/output/host/usr/bin/pkg-config 
Checking for pkg-config version >= '0.26' : yes 
Checking for 'glib-2.0'                   : yes 
Checking for 'glib-2.0' version           : yes 
Checking for 'gobject-2.0'                : yes 
Checking for 'libsoup-2.4'                : yes 
Checking for 'libsoup-2.4' version        : yes 
Checking for 'libxml-2.0'                 : yes 
Checking for 'uuid'                       : yes 
Checking for endianness                   : little 
Checking for inline                       : inline

看起来挺好的。

在编译步骤中

define EEBUSRESTIFIED_BUILD_CMDS
(cd "$(@D)"; \
$(TARGET_CONFIGURE_OPTS) \
LDFLAGS="--sysroot=$(STAGING_DIR)" \
LD_LIBRARY_PATH="$(STAGING_DIR)" \
PKG_CONFIG_PATH="$(STAGING_DIR)/usr/lib/pkgconfig" \
PKG_CONFIG_SYSROOT_DIR="$(STAGING_DIR)" \
./waf --dest=$(TARGET_DIR) build)
endef

它会随着

/home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/../../../../arm-none-linux-gnueabi/bin/ld: warning: library search path "/usr/lib" is unsafe for cross-compilation
/home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/../../../../arm-none-linux-gnueabi/bin/ld: warning: library search path "/usr/lib" is unsafe for cross-compilation
/usr/lib/libgobject-2.0.so: file not recognized: File format not recognized
collect2: ld returned 1 exit status

我理解这个问题-- waf/ld试图链接到我的主机库，这注定会失败。

如何修复ld以获取正确的库路径？这个问题的根源是什么？

在这里，build命令的扩展输出(将空格替换为换行符)：

echo
"PATH="/home/bernhard/buildroot-2013.08/output/host/bin:/home/bernhard/buildroot-2013.08/output/host/usr/bin:/home/bernhard/buildroot-2013.08/output/host/usr/sbin/:/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/bin/core_perl"
AR="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-ar"
AS="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-as"
LD="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-ld"
NM="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-nm"
CC="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-gcc"
GCC="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-gcc"
CPP="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-cpp"
CXX="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-g++"
FC="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-gfortran"
RANLIB="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-ranlib"
READELF="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-readelf"
STRIP="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-strip"
OBJCOPY="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-objcopy"
OBJDUMP="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-objdump"
AR_FOR_BUILD="/usr/bin/ar"
AS_FOR_BUILD="/usr/bin/as"
CC_FOR_BUILD="/usr/bin/gcc"
GCC_FOR_BUILD="/usr/bin/gcc"
CXX_FOR_BUILD="/usr/bin/g++"
FC_FOR_BUILD="/usr/bin/ld"
LD_FOR_BUILD="/usr/bin/ld"
CPPFLAGS_FOR_BUILD="-I/home/bernhard/buildroot-2013.08/output/host/usr/include"
CFLAGS_FOR_BUILD="-O2
-I/home/bernhard/buildroot-2013.08/output/host/usr/include"
CXXFLAGS_FOR_BUILD="-O2
-I/home/bernhard/buildroot-2013.08/output/host/usr/include"
LDFLAGS_FOR_BUILD="-L/home/bernhard/buildroot-2013.08/output/host/lib
-L/home/bernhard/buildroot-2013.08/output/host/usr/lib
-Wl,-rpath,/home/bernhard/buildroot-2013.08/output/host/usr/lib"
FCFLAGS_FOR_BUILD=""
DEFAULT_ASSEMBLER="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-as"
DEFAULT_LINKER="/home/bernhard/buildroot-2013.08/output/host/usr/bin/arm-none-linux-gnueabi-ld"
CPPFLAGS="-D_LARGEFILE_SOURCE
-D_LARGEFILE64_SOURCE
-D_FILE_OFFSET_BITS=64"
CFLAGS="-D_LARGEFILE_SOURCE
-D_LARGEFILE64_SOURCE
-D_FILE_OFFSET_BITS=64

-pipe
-O2
"
CXXFLAGS="-D_LARGEFILE_SOURCE
-D_LARGEFILE64_SOURCE
-D_FILE_OFFSET_BITS=64

-pipe
-O2
"
LDFLAGS=""
FCFLAGS=""
PKG_CONFIG="/home/bernhard/buildroot-2013.08/output/host/usr/bin/pkg-config"
PERLLIB="/home/bernhard/buildroot-2013.08/output/host/usr/lib/perl"
STAGING_DIR="/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot""

I tried a couple of combinations for `PKG_CONFIG_*` , with/without `--sysroot` but no success so far.

已读过linux cross compiling and dynamic libraries / linking

作为参考，整个foo.mk

FOO_VERSION = abcd1234
FOO_SITE = ssh://git@some.where/FOO
FOO_SITE_METHOD = git
FOO_LICENSE = unknown
FOO_INSTALL_TARGET = YES
FOO_DEPENDENCIES = util-linux libglib2 libsoup libxml2 host-pkgconf

define FOO_CONFIGURE_CMDS
    echo "$(TARGET_CONFIGURE_OPTS)"
    (cd "$(@D)"; \
    $(TARGET_CONFIGURE_OPTS) \
    LDFLAGS="--sysroot=$(STAGING_DIR)" \
    LD_LIBRARY_PATH="$(STAGING_DIR)" \
    PKG_CONFIG_PATH="$(STAGING_DIR)/usr/lib/pkgconfig" \
    PKG_CONFIG_SYSROOT_DIR="$(STAGING_DIR)" \
    ./waf --dest=$(TARGET_DIR) configure)
endef

define FOO_BUILD_CMDS
    (cd "$(@D)"; \
    LDFLAGS="--sysroot=$(STAGING_DIR)" \
    LD_LIBRARY_PATH="$(STAGING_DIR)" \
    PKG_CONFIG_PATH="$(STAGING_DIR)/usr/lib/pkgconfig" \
    PKG_CONFIG_SYSROOT_DIR="$(STAGING_DIR)" \
    ./waf --dest=$(TARGET_DIR) debug)
endef

define FOO_INSTALL_TARGET_CMDS
    (cd "$(@D)"; \
    ./waf --dest=$(TARGET_DIR) install)
endef

define FOO_CLEAN_CMDS
    (cd "$(@D)"; \
    ./waf --dest=$(TARGET_DIR) distclean)
endef

$(eval $(generic-package))

Answer 1

经过一个make clean，一个make all，我终于得到了一个解决方案-诀窍是通过LDFLAGS将有关sysroot的标志传递给链接器。

file告诉我./build/foo.bin: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.16, not stripped，这看起来很不错。

低于所使用的foo.mk

FOO_VERSION = 6508f5b36172ba8965372ef96fb350b413ec5d15
FOO_SITE = ssh://git@some.where/FOO
FOO_SITE_METHOD = git
FOO_LICENSE = unknown
FOO_INSTALL_TARGET = YES
FOO_DEPENDENCIES = util-linux libglib2 libsoup libxml2 host-pkgconf

define FOO_CONFIGURE_CMDS
    (cd "$(@D)"; \
    $(TARGET_CONFIGURE_OPTS) \
    LDFLAGS="-Wl,--sysroot=$(STAGING_DIR) -Wl,--verbose=9 -Wl,--error-poison-system-directories -L$(STAGING_DIR)/lib -L$(STAGING_DIR)/usr/lib" \
    ./waf --dest=$(TARGET_DIR) configure)
endef

define FOO_BUILD_CMDS
    (cd "$(@D)"; \
    ./waf --dest=$(TARGET_DIR) debug)
endef

define FOO_INSTALL_TARGET_CMDS
    (cd "$(@D)"; \
    ./waf --dest=$(TARGET_DIR) install)
endef

define FOO_CLEAN_CMDS
    (cd "$(@D)"; \
    ./waf --dest=$(TARGET_DIR) distclean)
endef

$(eval $(generic-package))

供参考-链接器输出

GNU ld (Sourcery CodeBench Lite 2011.09-70) 2.21.53.20110905
  Supported emulations:
   armelf_linux_eabi
   armelfb_linux_eabi
using internal linker script:
==================================================
<< stripped manually >>    
==================================================
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/crt1.o succeeded
/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/crt1.o
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/crti.o succeeded
/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/crti.o
attempt to open /home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/crtbegin.o succeeded
/home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/crtbegin.o
attempt to open src/asyncrequestobj.c.1.o succeeded
src/asyncrequestobj.c.1.o
attempt to open src/cache.c.1.o succeeded
src/cache.c.1.o
attempt to open src/error.c.1.o succeeded
src/error.c.1.o
attempt to open src/main.c.1.o succeeded
src/main.c.1.o
attempt to open src/request-info.c.1.o succeeded
src/request-info.c.1.o
attempt to open src/response-info.c.1.o succeeded
src/response-info.c.1.o
attempt to open src/xml_helper.c.1.o succeeded
src/xml_helper.c.1.o
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgobject-2.0.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgobject-2.0.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgobject-2.0.so succeeded
-lgobject-2.0 (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgobject-2.0.so)
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libglib-2.0.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libglib-2.0.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libglib-2.0.so succeeded
-lglib-2.0 (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libglib-2.0.so)
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libglib-2.0.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libglib-2.0.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libglib-2.0.so succeeded
-lglib-2.0 (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libglib-2.0.so)
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libsoup-2.4.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libsoup-2.4.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libsoup-2.4.so succeeded
-lsoup-2.4 (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libsoup-2.4.so)
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgio-2.0.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgio-2.0.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgio-2.0.so succeeded
-lgio-2.0 (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgio-2.0.so)
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgobject-2.0.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgobject-2.0.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgobject-2.0.so succeeded
-lgobject-2.0 (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgobject-2.0.so)
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libglib-2.0.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libglib-2.0.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libglib-2.0.so succeeded
-lglib-2.0 (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libglib-2.0.so)
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libxml2.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libxml2.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libxml2.so succeeded
-lxml2 (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libxml2.so)
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libuuid.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libuuid.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libuuid.so succeeded
-luuid (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libuuid.so)
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /usr/lib/libgcc.so failed
attempt to open /usr/lib/libgcc.a failed
attempt to open /usr/lib/libgcc.so failed
attempt to open /usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/libgcc.a succeeded
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc_s.so succeeded
opened script file /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc_s.so
opened script file /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc_s.so
attempt to open libgcc_s.so.1 failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc_s.so.1 succeeded
libgcc_s.so.1 (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc_s.so.1)
attempt to open libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /usr/lib/libgcc.a failed
attempt to open /usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/libgcc.a succeeded
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libpthread.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libpthread.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libpthread.so succeeded
opened script file /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libpthread.so
opened script file /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libpthread.so
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libpthread.so.0 succeeded
/lib/libpthread.so.0 (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libpthread.so.0)
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libpthread_nonshared.a succeeded
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libc.so succeeded
opened script file /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libc.so
opened script file /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libc.so
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libc.so.6 succeeded
/lib/libc.so.6 (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libc.so.6)
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libc_nonshared.a succeeded
(/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libc_nonshared.a)elf-init.oS
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/ld-linux.so.3 succeeded
/lib/ld-linux.so.3 (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/ld-linux.so.3)
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /usr/lib/libgcc.so failed
attempt to open /usr/lib/libgcc.a failed
attempt to open /usr/lib/libgcc.so failed
attempt to open /usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/libgcc.so failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/libgcc.a succeeded
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc_s.so succeeded
opened script file /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc_s.so
opened script file /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc_s.so
attempt to open libgcc_s.so.1 failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc_s.so.1 succeeded
libgcc_s.so.1 (/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc_s.so.1)
attempt to open libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /usr/lib/libgcc.a failed
attempt to open /usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgcc.a failed
attempt to open /home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/libgcc.a succeeded
attempt to open /home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/crtend.o succeeded
/home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/crtend.o
attempt to open /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/crtn.o succeeded
/home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/crtn.o
libpcre.so.1 needed by /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgobject-2.0.so
found libpcre.so.1 at /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libpcre.so.1
librt.so.1 needed by /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgobject-2.0.so
found librt.so.1 at /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/librt.so.1
libffi.so.6 needed by /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgobject-2.0.so
found libffi.so.6 at /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libffi.so.6
libgmodule-2.0.so.0 needed by /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libsoup-2.4.so
found libgmodule-2.0.so.0 at /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libgmodule-2.0.so.0
libresolv.so.2 needed by /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libsoup-2.4.so
found libresolv.so.2 at /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libresolv.so.2
libz.so.1 needed by /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libsoup-2.4.so
found libz.so.1 at /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libz.so.1
libm.so.6 needed by /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libsoup-2.4.so
found libm.so.6 at /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libm.so.6
libsqlite3.so.0 needed by /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libsoup-2.4.so
found libsqlite3.so.0 at /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libsqlite3.so.0
libdl.so.2 needed by /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libsoup-2.4.so
found libdl.so.2 at /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/libdl.so.2
ld-linux.so.3 needed by /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib/libuuid.so
found ld-linux.so.3 at /home/bernhard/buildroot-2013.08/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/lib/ld-linux.so.3
/home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/../../../../arm-none-linux-gnueabi/bin/ld: warning: library search path "/usr/lib" is unsafe for cross-compilation
/home/bernhard/buildroot-2013.08/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/../../../../arm-none-linux-gnueabi/bin/ld: warning: library search path "/usr/lib" is unsafe for cross-compilation

在最后，您仍然可以看到错误的路径存在，但是通过传递似乎具有更高优先级的-L标志，它仍然可以正常工作。

我找到了根本原因-当我做一个

bld.program(features = ['c', ..],
        libpath = ["/usr/lib"],
        stlibpath = ["/usr/lib"],
        includes = ["src", "/usr/include"],
        target = "foo.bin",
        source = ["main.c","foo.c"])

libpath、stlibpath和includes (至少更多)没有以destdir作为前缀--而且选项应该是--destdir而不是--dest。

Answer 2

没有关于waf的专家，但是“狡猾”的*_FOR_BUILD vars应该是由于在FOO_BUILD_CMDS中缺少echo "$(TARGET_CONFIGURE_OPTS)"。但是，如果这是一个基于自动工具的配置和安装，那么在构建步骤中我不会重写太多，所以请尝试使用

define FOO_BUILD_CMDS
    echo "$(TARGET_CONFIGURE_OPTS)"
    (cd "$(@D)"; \
    ./waf --dest=$(TARGET_DIR) debug)
endef

另外，将PKG_CONFIG_PATH="$(STAGING_DIR)/usr/lib/pkgconfig"替换为PKG_CONFIG_PATH="$(STAGING_DIR)/usr/lib/pkgconfig:$(STAGING_DIR)/lib/pkgconfig:‌​$(STAGING_DIR)/usr/local/lib/pkgconfig"。