[dpdk-dev] [PATCH 3/6] net/mlx: fix library search in meson build

[Yongseok Koh]

If MLNX_OFED is installed, there's no .pc file installed for libraries and
dependency() can't find libraries by pkg-config. By adding fallback of
using cc.find_library(), libraries are properly located.

Fixes: e30b4e566f47 ("build: improve dependency handling")
Cc: bluca at debian.org
Cc: stable at dpdk.org

Signed-off-by: Yongseok Koh <yskoh at mellanox.com>
---
 drivers/net/mlx4/meson.build | 19 +++++++++++--------
 drivers/net/mlx5/meson.build | 19 +++++++++++--------
 2 files changed, 22 insertions(+), 16 deletions(-)

diff --git a/drivers/net/mlx4/meson.build b/drivers/net/mlx4/meson.build
index de020701d1..9082f69f25 100644
--- a/drivers/net/mlx4/meson.build
+++ b/drivers/net/mlx4/meson.build
@@ -13,21 +13,24 @@ if pmd_dlopen
 		'-DMLX4_GLUE_VERSION="@0@"'.format(LIB_GLUE_VERSION),
 	]
 endif
-libs = [
-	dependency('libmnl', required:false),
-	dependency('libmlx4', required:false),
-	dependency('libibverbs', required:false),
-]
+libs = [ 'libmnl', 'libmlx4', 'libibverbs' ]
+lib_deps = []
 build = true
 foreach lib:libs
-	if not lib.found()
+	lib_dep = dependency(lib, required:false)
+	if not lib_dep.found()
+		lib_dep = cc.find_library(lib, required:false)
+	endif
+	if lib_dep.found()
+		lib_deps += [ lib_dep ]
+	else
 		build = false
 	endif
 endforeach
 # Compile PMD
 if build
 	allow_experimental_apis = true
-	ext_deps += libs
+	ext_deps += lib_deps
 	sources = files(
 		'mlx4.c',
 		'mlx4_ethdev.c',
@@ -103,7 +106,7 @@ if pmd_dlopen and build
 		dlopen_sources,
 		include_directories: global_inc,
 		c_args: cflags,
-		dependencies: libs,
+		dependencies: libs_deps,
 		link_args: [
 		'-Wl,-export-dynamic',
 		'-Wl,-h, at 0@'.format(LIB_GLUE),
diff --git a/drivers/net/mlx5/meson.build b/drivers/net/mlx5/meson.build
index a4c684e1b5..42701c51de 100644
--- a/drivers/net/mlx5/meson.build
+++ b/drivers/net/mlx5/meson.build
@@ -13,20 +13,23 @@ if pmd_dlopen
 		'-DMLX5_GLUE_VERSION="@0@"'.format(LIB_GLUE_VERSION),
 	]
 endif
-libs = [
-	dependency('libmnl', required:false),
-	dependency('libmlx5', required:false),
-	dependency('libibverbs', required:false),
-]
+libs = [ 'libmnl', 'libmlx5', 'libibverbs' ]
+lib_deps = []
 build = true
 foreach lib:libs
-	if not lib.found()
+	lib_dep = dependency(lib, required:false)
+	if not lib_dep.found()
+		lib_dep = cc.find_library(lib, required:false)
+	endif
+	if lib_dep.found()
+		lib_deps += [ lib_dep ]
+	else
 		build = false
 	endif
 endforeach
 if build
 	allow_experimental_apis = true
-	ext_deps += libs
+	ext_deps += lib_deps
 	sources = files(
 		'mlx5.c',
 		'mlx5_ethdev.c',
@@ -299,7 +302,7 @@ if pmd_dlopen and build
 		dlopen_sources,
 		include_directories: global_inc,
 		c_args: cflags,
-		dependencies: libs,
+		dependencies: lib_deps,
 		link_args: [
 		'-Wl,-export-dynamic',
 		'-Wl,-h, at 0@'.format(LIB_GLUE),
-- 
2.21.0.196.g041f5ea