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glibc: fix glibc build by creating an empty gnu/stubs.h

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The stubs.h header is not installed by install-headers, but is needed
for the gcc build. An empty stubs.h will work, as explained in
http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html. The same trick is
used by Crosstool-NG.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Thomas Petazzoni 2013-10-08 20:16:59 +02:00 committed by Peter Korsgaard
parent d8664dd438
commit 03b05402df
1 changed files with 12 additions and 0 deletions
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12
package/glibc/glibc.mk
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@ -47,6 +47,17 @@ else ifeq ($(BR2_MIPS_OABI32),y)
GLIBC_EXTRA_CFLAGS += -mabi=32
endif
# The stubs.h header is not installed by install-headers, but is
# needed for the gcc build. An empty stubs.h will work, as explained
# in http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html. The same trick
# is used by Crosstool-NG.
ifeq ($(BR2_TOOLCHAIN_BUILDROOT_GLIBC),y)
define GLIBC_ADD_MISSING_STUB_H
mkdir -p $(STAGING_DIR)/usr/include/gnu
touch $(STAGING_DIR)/usr/include/gnu/stubs.h
endef
endif
# Even though we use the autotools-package infrastructure, we have to
# override the default configure commands for several reasons:
#
@ -89,6 +100,7 @@ define GLIBC_CONFIGURE_CMDS
cp $(@D)/build/csu/crt1.o $(STAGING_DIR)/usr/lib/
cp $(@D)/build/csu/crti.o $(STAGING_DIR)/usr/lib/
cp $(@D)/build/csu/crtn.o $(STAGING_DIR)/usr/lib/
$(GLIBC_ADD_MISSING_STUB_H)
$(TARGET_CROSS)gcc -nostdlib \
-nostartfiles -shared -x c /dev/null -o $(STAGING_DIR)/usr/lib/libc.so
endef