mk: introduce EXTRA_LDLIBS variable

Signed-off-by: Keith Wiles <keith.wiles@intel.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>

diff --git a/doc/build-sdk-quick.txt b/doc/build-sdk-quick.txt
index 041a40e..bf18b48 100644 (file)
--- a/doc/build-sdk-quick.txt
+++ b/doc/build-sdk-quick.txt
@@ -13,6 +13,7 @@ Build variables
        EXTRA_CPPFLAGS   preprocessor options
        EXTRA_CFLAGS     compiler options
        EXTRA_LDFLAGS    linker options
+       EXTRA_LDLIBS     linker library options
        RTE_KERNELDIR    linux headers path
        CROSS     toolchain prefix
        V         verbose

diff --git a/doc/guides/prog_guide/dev_kit_build_system.rst b/doc/guides/prog_guide/dev_kit_build_system.rst
index 04f1d4e..7dc2de6 100644 (file)
--- a/doc/guides/prog_guide/dev_kit_build_system.rst
+++ b/doc/guides/prog_guide/dev_kit_build_system.rst
@@ -411,6 +411,8 @@ Variables that Can be Set/Overridden by the User in a Makefile or Command Line
 
 *   EXTRA_LDFLAGS: The content of this variable is appended after LDFLAGS when linking.
 
+*   EXTRA_LDLIBS: The content of this variable is appended after LDLIBS when linking.
+
 *   EXTRA_ASFLAGS: The content of this variable is appended after ASFLAGS when assembling.
 
 *   EXTRA_CPPFLAGS: The content of this variable is appended after CPPFLAGS when using a C preprocessor on assembly files.

diff --git a/doc/guides/prog_guide/dev_kit_root_make_help.rst b/doc/guides/prog_guide/dev_kit_root_make_help.rst
index 333b007..e522c12 100644 (file)
--- a/doc/guides/prog_guide/dev_kit_root_make_help.rst
+++ b/doc/guides/prog_guide/dev_kit_root_make_help.rst
@@ -218,7 +218,7 @@ The following variables can be specified on the command line:
 
     Enable dependency debugging. This provides some useful information about why a target is built or not.
 
-*   EXTRA_CFLAGS=, EXTRA_LDFLAGS=, EXTRA_ASFLAGS=, EXTRA_CPPFLAGS=
+*   EXTRA_CFLAGS=, EXTRA_LDFLAGS=, EXTRA_LDLIBS=, EXTRA_ASFLAGS=, EXTRA_CPPFLAGS=
 
     Append specific compilation, link or asm flags.
 

diff --git a/mk/rte.app.mk b/mk/rte.app.mk
index 4fc582a..1a2043a 100644 (file)
--- a/mk/rte.app.mk
+++ b/mk/rte.app.mk
@@ -141,7 +141,7 @@ _LDLIBS-y += $(EXECENV_LDLIBS)
 _LDLIBS-y += --end-group
 _LDLIBS-y += --no-whole-archive
 
-LDLIBS += $(_LDLIBS-y) $(CPU_LDLIBS)
+LDLIBS += $(_LDLIBS-y) $(CPU_LDLIBS) $(EXTRA_LDLIBS)
 
 .PHONY: all
 all: install