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From: Bruce Richardson <bruce.richardson@intel.com>
To: dev@dpdk.org
Cc: Bruce Richardson <bruce.richardson@intel.com>
Subject: [dpdk-dev] [RFC PATCH] build: use libpcap only from pkg-config
Date: Thu,  8 Oct 2020 18:05:36 +0100
Message-ID: <20201008170536.124111-1-bruce.richardson@intel.com> (raw)

All recent linux distro's - including RHEL 8 and Ubuntu 18.04 - provide a
pkg-config file for libpcap, and using other methods of finding the library
can cause issues when cross-compiling, so we can limit build support for
pcap versions without a .pc file.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
 config/meson.build | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/config/meson.build b/config/meson.build
index 69f2aeb60..edc6c195a 100644
--- a/config/meson.build
+++ b/config/meson.build
@@ -163,13 +163,7 @@ if libbsd.found()
 endif
 
 # check for pcap
-pcap_dep = dependency('pcap', required: false)
-if pcap_dep.found()
-	# pcap got a pkg-config file only in 1.9.0 and before that meson uses
-	# an internal pcap-config finder, which is not compatible with
-	# cross-compilation, so try to fallback to find_library
-	pcap_dep = cc.find_library('pcap', required: false)
-endif
+pcap_dep = dependency('libpcap', required: false, method: 'pkg-config')
 if pcap_dep.found() and cc.has_header('pcap.h', dependencies: pcap_dep)
 	dpdk_conf.set('RTE_PORT_PCAP', 1)
 	dpdk_extra_ldflags += '-lpcap'
-- 
2.25.1


             reply	other threads:[~2020-10-08 17:06 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-08 17:05 Bruce Richardson [this message]
2020-10-08 17:08 ` Bruce Richardson
2020-10-09  9:09   ` Luca Boccassi
2020-10-09 10:32     ` Bruce Richardson
2020-10-09 12:51       ` Luca Boccassi
2020-10-09 13:39         ` Bruce Richardson
2020-10-09 14:19 ` [dpdk-dev] [PATCH v2] build: skip detecting libpcap via pcap-config Bruce Richardson
2020-10-09 14:54   ` Luca Boccassi
2020-10-12 15:12     ` David Marchand
2020-10-12 12:02   ` David Marchand
2020-10-12 12:47     ` Bruce Richardson
2020-10-12 12:48   ` Bruce Richardson

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