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package/libpcap: fix build failure without wchar

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libpcap requires c99 since version 1.10.0 and
68e5ca3f4c

However, this test will fail without wchar on:

configure:3609: /home/buildroot/autobuild/run/instance-2/output-1/host/bin/arm-linux-gcc -std=gnu99 -c -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -O2   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
conftest.c:52:9: error: unknown type name 'wchar_t'
   const wchar_t *name;
         ^~~~~~~

So hardcode ac_cv_prog_cc_c99 as already done in numerous package such
as apparmor, wireshark, xz, etc.

Fixes:
 - http://autobuild.buildroot.org/results/6e87c25a0dccccf5e7ad03742597a0613f554506

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Fabrice Fontaine 2021-01-22 23:52:21 +01:00 committed by Thomas Petazzoni
parent b13a590545
commit 768213c71b
1 changed files with 3 additions and 0 deletions
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3
package/libpcap/libpcap.mk
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@ -12,8 +12,11 @@ LIBPCAP_CPE_ID_VENDOR = tcpdump
LIBPCAP_INSTALL_STAGING = YES
LIBPCAP_DEPENDENCIES = host-flex host-bison host-pkgconf
# ac_cv_prog_cc_c99 is required for BR2_USE_WCHAR=n because the C99 test
# provided by autoconf relies on wchar_t.
LIBPCAP_CONF_ENV = \
ac_cv_header_linux_wireless_h=yes \
ac_cv_prog_cc_c99=-std=gnu99 \
CFLAGS="$(LIBPCAP_CFLAGS)"
LIBPCAP_CFLAGS = $(TARGET_CFLAGS)
LIBPCAP_CONF_OPTS = --disable-yydebug --with-pcap=linux --without-dag \