From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 19BC8C894 for ; Wed, 29 Apr 2015 17:11:57 +0200 (CEST) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga101.jf.intel.com with ESMTP; 29 Apr 2015 08:11:58 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,671,1422950400"; d="scan'208";a="487220278" Received: from unknown ([10.237.220.106]) by FMSMGA003.fm.intel.com with SMTP; 29 Apr 2015 08:11:55 -0700 Received: by (sSMTP sendmail emulation); Wed, 29 Apr 2015 16:11:54 +0025 Date: Wed, 29 Apr 2015 16:11:54 +0100 From: Bruce Richardson To: Keith Wiles Message-ID: <20150429151154.GA3716@bricha3-MOBL3> References: <1430318263-3189-1-git-send-email-keith.wiles@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1430318263-3189-1-git-send-email-keith.wiles@intel.com> Organization: Intel Shannon Ltd. User-Agent: Mutt/1.5.23 (2014-03-12) Cc: dev@dpdk.org Subject: Re: [dpdk-dev] [PATCH v2 1/2] Simplify the ifdefs in rte.app.mk. X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Apr 2015 15:11:59 -0000 On Wed, Apr 29, 2015 at 09:37:42AM -0500, Keith Wiles wrote: > Trying to simplify the ifdefs in rte.app.mk to make the code > more readable and maintainable by moving LDLIBS variable to use > the same style as LDLIBS-y being used in the rest of the code. > > Added a new variable called EXTRA_LDLIBS to be used by example apps > instead of using LDLIBS directly. > > Signed-off-by: Keith Wiles Since EXTRA_* flags are designed that they can be overridden on the makefile, what happens if someone does a compile via: "EXTRA_LDLIBS=X make"? Does the compile/link still work? /Bruce > --- > examples/dpdk_qat/Makefile | 4 +- > examples/vm_power_manager/Makefile | 2 +- > mk/rte.app.mk | 254 ++++++++++--------------------------- > mk/rte.hostapp.mk | 4 +- > mk/rte.shared.mk | 12 +- > 5 files changed, 77 insertions(+), 199 deletions(-) > > diff --git a/examples/dpdk_qat/Makefile b/examples/dpdk_qat/Makefile > index f1e06a1..90ca1d3 100644 > --- a/examples/dpdk_qat/Makefile > +++ b/examples/dpdk_qat/Makefile > @@ -77,8 +77,8 @@ else > ICP_LIBRARY_PATH = $(ICP_ROOT)/build/libicp_qa_al.a > endif > > -LDLIBS += -L$(ICP_ROOT)/build > -LDLIBS += $(ICP_LIBRARY_PATH) \ > +EXTRA_LDLIBS += -L$(ICP_ROOT)/build > +EXTRA_LDLIBS += $(ICP_LIBRARY_PATH) \ > -lz \ > -losal \ > -ladf_proxy \ > diff --git a/examples/vm_power_manager/Makefile b/examples/vm_power_manager/Makefile > index 113dbc4..8fb78d4 100644 > --- a/examples/vm_power_manager/Makefile > +++ b/examples/vm_power_manager/Makefile > @@ -48,7 +48,7 @@ SRCS-y += channel_monitor.c > CFLAGS += -O3 -I$(RTE_SDK)/lib/librte_power/ > CFLAGS += $(WERROR_FLAGS) > > -LDLIBS += -lvirt > +EXTRA_LDLIBS += -lvirt > > # workaround for a gcc bug with noreturn attribute > # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603 > diff --git a/mk/rte.app.mk b/mk/rte.app.mk > index 62a76ae..ed471ad 100644 > --- a/mk/rte.app.mk > +++ b/mk/rte.app.mk > @@ -1,7 +1,7 @@ > # BSD LICENSE > # > -# Copyright(c) 2010-2014 Intel Corporation. All rights reserved. > -# Copyright(c) 2014 6WIND S.A. > +# Copyright(c) 2010-2015 Intel Corporation. All rights reserved. > +# Copyright(c) 2015 6WIND S.A. > # All rights reserved. > # > # Redistribution and use in source and binary forms, with or without > @@ -51,7 +51,7 @@ LDSCRIPT = $(RTE_LDSCRIPT) > endif > > # default path for libs > -LDLIBS += -L$(RTE_SDK_BIN)/lib > +LDLIBS-y = -L$(RTE_SDK_BIN)/lib > > # > # Include libraries depending on config if NO_AUTOLIBS is not set > @@ -59,215 +59,93 @@ LDLIBS += -L$(RTE_SDK_BIN)/lib > # > ifeq ($(NO_AUTOLIBS),) > > -LDLIBS += --whole-archive > +LDLIBS-y += --whole-archive > > -ifeq ($(CONFIG_RTE_BUILD_COMBINE_LIBS),y) > -LDLIBS += -l$(RTE_LIBNAME) > -endif > +LDLIBS-$(CONFIG_RTE_BUILD_COMBINE_LIBS) += -l$(RTE_LIBNAME) > > ifeq ($(CONFIG_RTE_BUILD_COMBINE_LIBS),n) > > -ifeq ($(CONFIG_RTE_LIBRTE_DISTRIBUTOR),y) > -LDLIBS += -lrte_distributor > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_REORDER),y) > -LDLIBS += -lrte_reorder > -endif > +LDLIBS-$(CONFIG_RTE_LIBRTE_DISTRIBUTOR) += -lrte_distributor > +LDLIBS-$(CONFIG_RTE_LIBRTE_REORDER) += -lrte_reorder > > -ifeq ($(CONFIG_RTE_LIBRTE_KNI),y) > ifeq ($(CONFIG_RTE_EXEC_ENV_LINUXAPP),y) > -LDLIBS += -lrte_kni > -endif > +LDLIBS-$(CONFIG_RTE_LIBRTE_KNI) += -lrte_kni > +LDLIBS-$(CONFIG_RTE_LIBRTE_IVSHMEM) += -lrte_ivshmem > endif > > -ifeq ($(CONFIG_RTE_LIBRTE_IVSHMEM),y) > -ifeq ($(CONFIG_RTE_EXEC_ENV_LINUXAPP),y) > -LDLIBS += -lrte_ivshmem > -endif > -endif > +LDLIBS-$(CONFIG_RTE_LIBRTE_PIPELINE) += -lrte_pipeline > +LDLIBS-$(CONFIG_RTE_LIBRTE_TABLE) += -lrte_table > +LDLIBS-$(CONFIG_RTE_LIBRTE_PORT) += -lrte_port > +LDLIBS-$(CONFIG_RTE_LIBRTE_TIMER) += -lrte_timer > +LDLIBS-$(CONFIG_RTE_LIBRTE_HASH) += -lrte_hash > +LDLIBS-$(CONFIG_RTE_LIBRTE_JOBSTATS) += -lrte_jobstats > +LDLIBS-$(CONFIG_RTE_LIBRTE_LPM) += -lrte_lpm > +LDLIBS-$(CONFIG_RTE_LIBRTE_POWER) += -lrte_power > +LDLIBS-$(CONFIG_RTE_LIBRTE_ACL) += -lrte_acl > +LDLIBS-$(CONFIG_RTE_LIBRTE_METER) += -lrte_meter > > -ifeq ($(CONFIG_RTE_LIBRTE_PIPELINE),y) > -LDLIBS += -lrte_pipeline > -endif > +LDLIBS-$(CONFIG_RTE_LIBRTE_SCHED) += -lrte_sched > +LDLIBS-$(CONFIG_RTE_LIBRTE_SCHED) += -lm > +LDLIBS-$(CONFIG_RTE_LIBRTE_SCHED) += -lrt > > -ifeq ($(CONFIG_RTE_LIBRTE_TABLE),y) > -LDLIBS += -lrte_table > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_PORT),y) > -LDLIBS += -lrte_port > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_TIMER),y) > -LDLIBS += -lrte_timer > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_HASH),y) > -LDLIBS += -lrte_hash > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_JOBSTATS),y) > -LDLIBS += -lrte_jobstats > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_LPM),y) > -LDLIBS += -lrte_lpm > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_POWER),y) > -LDLIBS += -lrte_power > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_ACL),y) > -LDLIBS += -lrte_acl > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_METER),y) > -LDLIBS += -lrte_meter > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_SCHED),y) > -LDLIBS += -lrte_sched > -LDLIBS += -lm > -LDLIBS += -lrt > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_VHOST), y) > -LDLIBS += -lrte_vhost > -endif > +LDLIBS-$(CONFIG_RTE_LIBRTE_VHOST) += -lrte_vhost > > endif # ! CONFIG_RTE_BUILD_COMBINE_LIBS > > -ifeq ($(CONFIG_RTE_LIBRTE_PMD_PCAP),y) > -LDLIBS += -lpcap > -endif > +LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += -lpcap > > -ifeq ($(CONFIG_RTE_LIBRTE_VHOST)$(CONFIG_RTE_LIBRTE_VHOST_USER),yn) > -LDLIBS += -lfuse > +ifeq ($(CONFIG_RTE_LIBRTE_VHOST_USER),n) > +LDLIBS-$(CONFIG_RTE_LIBRTE_VHOST) += -lfuse > endif > > -ifeq ($(CONFIG_RTE_LIBRTE_MLX4_PMD),y) > -LDLIBS += -libverbs > -endif > +LDLIBS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += -libverbs > > -LDLIBS += --start-group > +LDLIBS-y += --start-group > > ifeq ($(CONFIG_RTE_BUILD_COMBINE_LIBS),n) > > -ifeq ($(CONFIG_RTE_LIBRTE_KVARGS),y) > -LDLIBS += -lrte_kvargs > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_MBUF),y) > -LDLIBS += -lrte_mbuf > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_IP_FRAG),y) > -LDLIBS += -lrte_ip_frag > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_ETHER),y) > -LDLIBS += -lethdev > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_MALLOC),y) > -LDLIBS += -lrte_malloc > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_MEMPOOL),y) > -LDLIBS += -lrte_mempool > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_RING),y) > -LDLIBS += -lrte_ring > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_EAL),y) > -LDLIBS += -lrte_eal > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_CMDLINE),y) > -LDLIBS += -lrte_cmdline > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_CFGFILE),y) > -LDLIBS += -lrte_cfgfile > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_PMD_BOND),y) > -LDLIBS += -lrte_pmd_bond > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_PMD_XENVIRT),y) > -LDLIBS += -lrte_pmd_xenvirt > -LDLIBS += -lxenstore > -endif > +LDLIBS-$(CONFIG_RTE_LIBRTE_KVARGS) += -lrte_kvargs > +LDLIBS-$(CONFIG_RTE_LIBRTE_MBUF) += -lrte_mbuf > +LDLIBS-$(CONFIG_RTE_LIBRTE_IP_FRAG) += -lrte_ip_frag > +LDLIBS-$(CONFIG_RTE_LIBRTE_ETHER) += -lethdev > +LDLIBS-$(CONFIG_RTE_LIBRTE_MALLOC) += -lrte_malloc > +LDLIBS-$(CONFIG_RTE_LIBRTE_MEMPOOL) += -lrte_mempool > +LDLIBS-$(CONFIG_RTE_LIBRTE_RING) += -lrte_ring > +LDLIBS-$(CONFIG_RTE_LIBRTE_EAL) += -lrte_eal > +LDLIBS-$(CONFIG_RTE_LIBRTE_CMDLINE) += -lrte_cmdline > +LDLIBS-$(CONFIG_RTE_LIBRTE_CFGFILE) += -lrte_cfgfile > +LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += -lrte_pmd_bond > + > +LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT) += -lrte_pmd_xenvirt > +LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT) += -lxenstore > > ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),n) > # plugins (link only if static libraries) > > -ifeq ($(CONFIG_RTE_LIBRTE_VMXNET3_PMD),y) > -LDLIBS += -lrte_pmd_vmxnet3_uio > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_VIRTIO_PMD),y) > -LDLIBS += -lrte_pmd_virtio > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_ENIC_PMD),y) > -LDLIBS += -lrte_pmd_enic > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_I40E_PMD),y) > -LDLIBS += -lrte_pmd_i40e > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_FM10K_PMD),y) > -LDLIBS += -lrte_pmd_fm10k > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_IXGBE_PMD),y) > -LDLIBS += -lrte_pmd_ixgbe > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_E1000_PMD),y) > -LDLIBS += -lrte_pmd_e1000 > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_MLX4_PMD),y) > -LDLIBS += -lrte_pmd_mlx4 > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_PMD_RING),y) > -LDLIBS += -lrte_pmd_ring > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_PMD_PCAP),y) > -LDLIBS += -lrte_pmd_pcap > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_PMD_AF_PACKET),y) > -LDLIBS += -lrte_pmd_af_packet > -endif > - > -ifeq ($(CONFIG_RTE_LIBRTE_PMD_NULL),y) > -LDLIBS += -lrte_pmd_null > -endif > - > -endif # plugins > +LDLIBS-$(CONFIG_RTE_LIBRTE_VMXNET3_PMD) += -lrte_pmd_vmxnet3_uio > +LDLIBS-$(CONFIG_RTE_LIBRTE_VIRTIO_PMD) += -lrte_pmd_virtio > +LDLIBS-$(CONFIG_RTE_LIBRTE_ENIC_PMD) += -lrte_pmd_enic > +LDLIBS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += -lrte_pmd_i40e > +LDLIBS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += -lrte_pmd_fm10k > +LDLIBS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD) += -lrte_pmd_ixgbe > +LDLIBS-$(CONFIG_RTE_LIBRTE_E1000_PMD) += -lrte_pmd_e1000 > +LDLIBS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += -lrte_pmd_mlx4 > +LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_RING) += -lrte_pmd_ring > +LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += -lrte_pmd_pcap > +LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_AF_PACKET) += -lrte_pmd_af_packet > +LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_NULL) += -lrte_pmd_null > + > +endif # ! $(CONFIG_RTE_BUILD_SHARED_LIB) > > endif # ! CONFIG_RTE_BUILD_COMBINE_LIBS > > -LDLIBS += $(EXECENV_LDLIBS) > - > -LDLIBS += --end-group > - > -LDLIBS += --no-whole-archive > +LDLIBS-y += $(EXECENV_LDLIBS) > +LDLIBS-y += --end-group > +LDLIBS-y += --no-whole-archive > > endif # ifeq ($(NO_AUTOLIBS),) > > -LDLIBS += $(CPU_LDLIBS) > +LDLIBS-y += $(EXTRA_LDLIBS) > > .PHONY: all > all: install > @@ -286,10 +164,10 @@ ifeq ($(LINK_USING_CC),1) > override EXTRA_LDFLAGS := $(call linkerprefix,$(EXTRA_LDFLAGS)) > O_TO_EXE = $(CC) $(CFLAGS) $(LDFLAGS_$(@)) \ > -Wl,-Map=$(@).map,--cref -o $@ $(OBJS-y) $(call linkerprefix,$(LDFLAGS)) \ > - $(EXTRA_LDFLAGS) $(call linkerprefix,$(LDLIBS)) > + $(EXTRA_LDFLAGS) $(call linkerprefix,$(LDLIBS-y)) > else > O_TO_EXE = $(LD) $(LDFLAGS) $(LDFLAGS_$(@)) $(EXTRA_LDFLAGS) \ > - -Map=$(@).map --cref -o $@ $(OBJS-y) $(LDLIBS) > + -Map=$(@).map --cref -o $@ $(OBJS-y) $(LDLIBS-y) > endif > O_TO_EXE_STR = $(subst ','\'',$(O_TO_EXE)) #'# fix syntax highlight > O_TO_EXE_DISP = $(if $(V),"$(O_TO_EXE_STR)"," LD $(@)") > @@ -302,12 +180,12 @@ O_TO_EXE_DO = @set -e; \ > -include .$(APP).cmd > > # path where libraries are retrieved > -LDLIBS_PATH := $(subst -Wl$(comma)-L,,$(filter -Wl$(comma)-L%,$(LDLIBS))) > -LDLIBS_PATH += $(subst -L,,$(filter -L%,$(LDLIBS))) > +LDLIBS_PATH := $(subst -Wl$(comma)-L,,$(filter -Wl$(comma)-L%,$(LDLIBS-y))) > +LDLIBS_PATH += $(subst -L,,$(filter -L%,$(LDLIBS-y))) > > # list of .a files that are linked to this application > -LDLIBS_NAMES := $(patsubst -l%,lib%.a,$(filter -l%,$(LDLIBS))) > -LDLIBS_NAMES += $(patsubst -Wl$(comma)-l%,lib%.a,$(filter -Wl$(comma)-l%,$(LDLIBS))) > +LDLIBS_NAMES := $(patsubst -l%,lib%.a,$(filter -l%,$(LDLIBS-y))) > +LDLIBS_NAMES += $(patsubst -Wl$(comma)-l%,lib%.a,$(filter -Wl$(comma)-l%,$(LDLIBS-y))) > > # list of found libraries files (useful for deps). If not found, the > # library is silently ignored and dep won't be checked > diff --git a/mk/rte.hostapp.mk b/mk/rte.hostapp.mk > index c44d0f8..51e8c1d 100644 > --- a/mk/rte.hostapp.mk > +++ b/mk/rte.hostapp.mk > @@ -58,7 +58,7 @@ build: _postbuild > exe2cmd = $(strip $(call dotfile,$(patsubst %,%.cmd,$(1)))) > > O_TO_EXE = $(HOSTCC) $(HOST_LDFLAGS) $(LDFLAGS_$(@)) \ > - $(EXTRA_HOST_LDFLAGS) -o $@ $(OBJS-y) $(LDLIBS) > + $(EXTRA_HOST_LDFLAGS) -o $@ $(OBJS-y) $(LDLIBS-y) > O_TO_EXE_STR = $(subst ','\'',$(O_TO_EXE)) #'# fix syntax highlight > O_TO_EXE_DISP = $(if $(V),"$(O_TO_EXE_STR)"," HOSTLD $(@)") > O_TO_EXE_CMD = "cmd_$@ = $(O_TO_EXE_STR)" > @@ -72,7 +72,7 @@ O_TO_EXE_DO = @set -e; \ > # list of .a files that are linked to this application > LDLIBS_FILES := $(wildcard \ > $(addprefix $(RTE_OUTPUT)/lib/, \ > - $(patsubst -l%,lib%.a,$(filter -l%,$(LDLIBS))))) > + $(patsubst -l%,lib%.a,$(filter -l%,$(LDLIBS-y))))) > > # > # Compile executable file if needed > diff --git a/mk/rte.shared.mk b/mk/rte.shared.mk > index fc6b0b4..56f20bb 100644 > --- a/mk/rte.shared.mk > +++ b/mk/rte.shared.mk > @@ -60,10 +60,10 @@ exe2cmd = $(strip $(call dotfile,$(patsubst %,%.cmd,$(1)))) > ifeq ($(LINK_USING_CC),1) > override EXTRA_LDFLAGS := $(call linkerprefix,$(EXTRA_LDFLAGS)) > O_TO_SO = $(CC) $(call linkerprefix,$(LDFLAGS)) $(LDFLAGS_$(@)) $(EXTRA_LDFLAGS) \ > - -shared -o $@ $(OBJS-y) $(call linkerprefix,$(LDLIBS)) > + -shared -o $@ $(OBJS-y) $(call linkerprefix,$(LDLIBS-y)) > else > O_TO_SO = $(LD) $(LDFLAGS) $(LDFLAGS_$(@)) $(EXTRA_LDFLAGS) \ > - -shared -o $@ $(OBJS-y) $(LDLIBS) > + -shared -o $@ $(OBJS-y) $(LDLIBS-y) > endif > > O_TO_SO_STR = $(subst ','\'',$(O_TO_SO)) #'# fix syntax highlight > @@ -77,12 +77,12 @@ O_TO_SO_DO = @set -e; \ > -include .$(SHARED).cmd > > # path where libraries are retrieved > -LDLIBS_PATH := $(subst -Wl$(comma)-L,,$(filter -Wl$(comma)-L%,$(LDLIBS))) > -LDLIBS_PATH += $(subst -L,,$(filter -L%,$(LDLIBS))) > +LDLIBS_PATH := $(subst -Wl$(comma)-L,,$(filter -Wl$(comma)-L%,$(LDLIBS-y))) > +LDLIBS_PATH += $(subst -L,,$(filter -L%,$(LDLIBS-y))) > > # list of .a files that are linked to this application > -LDLIBS_NAMES := $(patsubst -l%,lib%.a,$(filter -l%,$(LDLIBS))) > -LDLIBS_NAMES += $(patsubst -Wl$(comma)-l%,lib%.a,$(filter -Wl$(comma)-l%,$(LDLIBS))) > +LDLIBS_NAMES := $(patsubst -l%,lib%.a,$(filter -l%,$(LDLIBS-y))) > +LDLIBS_NAMES += $(patsubst -Wl$(comma)-l%,lib%.a,$(filter -Wl$(comma)-l%,$(LDLIBS-y))) > > # list of found libraries files (useful for deps). If not found, the > # library is silently ignored and dep won't be checked > -- > 2.3.0 >