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package/bird: needs autoreconf

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Since the bump to version 2.0.8 in commit
f5906644b4, bird uses a home-grown "GNU Autoconf
2.69e" instead of standard autoconf 2.69 to generate the configure
script. This fork seems to generate incorrect code: it uses

ac_test_CFLAGS=${CFLAGS+y}

to remember if CFLAGS was saved, while standard autoconf uses

ac_test_CFLAGS=${CFLAGS+set}

The configure.ac code itself, however, uses

if test "$ac_test_CFLAGS" != set ; then

to check if CFLAGS was overridden.

Thus, Buildroot's CFLAGS are not taken into account and this leads to
the following build failure:

checking for glob.h... no
configure: error: glob.h not found.

This build failure is raised because -g0 and -g are both passed to gcc:

configure:5207: checking for glob.h
configure:5230: /data/buildroot-autobuilder/instance-0/output-1/host/bin/mips64el-linux-gcc -o conftest -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0  -pthread -fno-strict-aliasing -fno-strict-overflow -flto -Wall -Wextra -Wstrict-prototypes -Wno-parentheses -Wno-pointer-sign -Wno-missing-field-initializers -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -pthread -flto=4 -g conftest.c  >&5
/data/buildroot-autobuilder/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/mips64el-buildroot-linux-uclibc/8.4.0/../../../../mips64el-buildroot-linux-uclibc/bin/ld: /tmp/ccDboxph.ltrans0.ltrans.o:(.debug_info+0x2a): undefined reference to `conftest.c.0943dc99'
/data/buildroot-autobuilder/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/mips64el-buildroot-linux-uclibc/8.4.0/../../../../mips64el-buildroot-linux-uclibc/bin/ld: /tmp/ccDboxph.ltrans0.ltrans.o:(.debug_info+0x2f): undefined reference to `conftest.c.0943dc99'

-g0 is passed by buildroot and -g is passed by bird if
$ac_test_CFLAGS" != set (since version 2.0.7 and
cc95b4594a)

To fix this, we can simply run autoreconf and generate a correct
configure script.

Fixes:
 - http://autobuild.buildroot.org/results/1d2acc9f6b8830adc8b62d6b2e55837abae561a9

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
This commit is contained in:
Fabrice Fontaine 2021-07-25 11:16:22 +02:00 committed by Arnout Vandecappelle (Essensium/Mind)
parent 594f5218e7
commit 03c148c8de
1 changed files with 1 additions and 0 deletions
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package/bird/bird.mk
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@ -11,6 +11,7 @@ BIRD_LICENSE_FILES = README
BIRD_CPE_ID_VENDOR = nic
BIRD_SELINUX_MODULES = bird
BIRD_DEPENDENCIES = host-flex host-bison
BIRD_AUTORECONF = YES
ifeq ($(BR2_PACKAGE_BIRD_CLIENT),y)
BIRD_CONF_OPTS += --enable-client