configure: Allow to define custom libdir location

This is done mainly to align the final location with the one listed
in the .pc files created for each lib.

Signed-off-by: Michal Berger <michallinuxstuff@gmail.com>
Change-Id: I99d6875c9e26f8202723dd6d73bd865b6478bcf9
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12978
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Dong Yi <dongx.yi@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>

CONFIG

@@ -10,6 +10,9 @@ CONFIG_PREFIX="/usr/local"
 # Target architecture
 CONFIG_ARCH=native
 
+# Destination directory for the libraries
+CONFIG_LIBDIR=
+
 # Prefix for cross compilation
 CONFIG_CROSS_PREFIX=
 

configure

@@ -22,6 +22,7 @@ function usage() {
 	echo ""
 	echo " --cross-prefix=prefix     Prefix for cross compilation (default: none)"
 	echo "                           example: aarch64-linux-gnu"
+	echo " --libdir=path             Configure installation path for the libraries (default: \$prefix/lib)"
 	echo ""
 	echo " --enable-debug            Configure for debug builds"
 	echo " --enable-werror           Treat compiler warnings as errors"
@@ -298,6 +299,9 @@ for i in "$@"; do
 		--target-arch=*)
 			CONFIG[ARCH]="${i#*=}"
 			;;
+		--libdir=*)
+			CONFIG[LIBDIR]="${i#*=}"
+			;;
 		--enable-debug)
 			CONFIG[DEBUG]=y
 			;;

mk/spdk.common.mk

@@ -26,7 +26,11 @@ CONFIG_PREFIX=$(prefix)
 endif
 
 bindir?=$(CONFIG_PREFIX)/bin
+ifeq ($(CONFIG_LIBDIR),)
 libdir?=$(CONFIG_PREFIX)/lib
+else
+libdir?=$(CONFIG_LIBDIR)
+endif
 includedir?=$(CONFIG_PREFIX)/include
 
 ifeq ($(MAKECMDGOALS),)

mk/spdk.lib.mk

@@ -87,16 +87,16 @@ $(SHARED_REALNAME_LIB): $(LIB)
 	$(call spdk_build_realname_shared_lib,$(COMPILER),$^,$(SPDK_MAP_FILE),$(LOCAL_SYS_LIBS),$(SPDK_DEP_LIBS))
 
 define pkgconfig_create
-	$(Q)$(SPDK_ROOT_DIR)/scripts/pc.sh $(1) $(LIBNAME) $(SO_SUFFIX) \
+	$(Q)$(SPDK_ROOT_DIR)/scripts/pc.sh $(1) $(2) $(LIBNAME) $(SO_SUFFIX) \
 		"$(DEPDIRS-$(LIBNAME):%=spdk_%) $(MODULES-$(LIBNAME))" \
 		"" > $@
 endef
 
 $(PKGCONFIG): $(LIB)
-	$(call pkgconfig_create,$(SPDK_ROOT_DIR)/build)
+	$(call pkgconfig_create,$(SPDK_ROOT_DIR)/build "")
 
 $(PKGCONFIG_INST): $(LIB)
-	$(call pkgconfig_create,$(CONFIG_PREFIX))
+	$(call pkgconfig_create,$(CONFIG_PREFIX),$(libdir))
 
 $(LIB): $(OBJS)
 	$(LIB_C)

rpmbuild/rpm.sh

@@ -105,6 +105,10 @@ build_macros() {
 		fi
 	fi
 
+	if get_config libdir has-arg; then
+		macros+=(-D "libdir $(get_config libdir print)")
+	fi
+
 	if [[ $deps == no ]]; then
 		macros+=(-D "deps 0")
 	fi

rpmbuild/spdk.spec

@@ -8,6 +8,7 @@
 %{!?requirements:%define requirements 0}
 %{!?build_requirements:%define build_requirements 0}
 %{!?shared:%define shared 0}
+%{!?libdir:%define libdir /usr/local/lib}
 
 # Spec metadata
 Name:           spdk
@@ -87,7 +88,7 @@ mkdir -p %{buildroot}/etc/ld.so.conf.d
 mkdir -p %{buildroot}%{python3_sitelib}
 
 cat <<-EOF > %{buildroot}/etc/ld.so.conf.d/spdk.conf
-/usr/local/lib
+%{libdir}
 /usr/local/lib/dpdk
 EOF
 
@@ -127,7 +128,7 @@ SPDK development libraries and headers
 %files devel
 /usr/local/include/*
 %if %{shared}
-/usr/local/lib/lib*.so
+%{libdir}/lib*.so
 %endif
 
 %package libs
@@ -138,10 +139,10 @@ SPDK libraries
 
 %files libs
 /etc/ld.so.conf.d/*
-/usr/local/lib/lib*.a
+%{libdir}/lib*.a
-/usr/local/lib/pkgconfig/*.pc
+%{libdir}/pkgconfig/*.pc
 %if %{shared}
-/usr/local/lib/lib*.so.*
+%{libdir}/lib*.so.*
 %endif
 
 %post libs

scripts/pc.sh

@@ -1,10 +1,10 @@
 #!/usr/bin/env bash
 cat << EOF
-Description: SPDK $2 library
+Description: SPDK $3 library
-Name: spdk_$2
+Name: spdk_$3
-Version: $3
+Version: $4
-Libs: -L$1/lib  -lspdk_$2
+Libs: -L${2:-"$1/lib"}  -lspdk_$3
-Requires: $4
+Requires: $5
-Libs.private: $5
+Libs.private: $6
 Cflags: -I$1/include
 EOF