From 8068e598188d57cac6e94d6c4936eed03d9d5d3b Mon Sep 17 00:00:00 2001
From: Thomas Roehl <Thomas.Roehl@googlemail.com>
Date: Fri, 13 May 2022 13:14:47 +0200
Subject: [PATCH] Update handling of LIKWID headers. Download only if not
 already present in the system. Fixes #73

---
 collectors/Makefile | 36 +++++++++++++++++++++---------------
 1 file changed, 21 insertions(+), 15 deletions(-)

diff --git a/collectors/Makefile b/collectors/Makefile
index b07bccd..20418ed 100644
--- a/collectors/Makefile
+++ b/collectors/Makefile
@@ -1,22 +1,28 @@
-
-all: likwid
-
-
 # LIKWID version
 LIKWID_VERSION = 5.2.1
+LIKWID_INSTALLED_FOLDER=$(shell dirname $(shell which likwid-topology 2>/dev/null))
+
+LIKWID_FOLDER="$(shell pwd)/likwid"
+
+all: $(LIKWID_FOLDER)/likwid.h
 
 .ONESHELL:
-.PHONY: likwid
-likwid:
-	INSTALL_FOLDER="$${PWD}/likwid"
-	BUILD_FOLDER="$${PWD}/likwidbuild"
-	if [ -d $${INSTALL_FOLDER} ]; then rm -r $${INSTALL_FOLDER}; fi
-	mkdir --parents --verbose  $${INSTALL_FOLDER} $${BUILD_FOLDER}
-	wget -P "$${BUILD_FOLDER}" ftp://ftp.rrze.uni-erlangen.de/mirrors/likwid/likwid-$(LIKWID_VERSION).tar.gz
-	tar -C $${BUILD_FOLDER} -xf $${BUILD_FOLDER}/likwid-$(LIKWID_VERSION).tar.gz
-	install -Dpm 0644 $${BUILD_FOLDER}/likwid-$(LIKWID_VERSION)/src/includes/likwid*.h $${INSTALL_FOLDER}/
-	install -Dpm 0644 $${BUILD_FOLDER}/likwid-$(LIKWID_VERSION)/src/includes/bstrlib.h $${INSTALL_FOLDER}/
-	rm -r $${BUILD_FOLDER}
+.PHONY: $(LIKWID_FOLDER)/likwid.h
+$(LIKWID_FOLDER)/likwid.h:
+	if [ "$(LIKWID_INSTALLED_FOLDER)" != "" ]; then \
+		BASE="$(LIKWID_INSTALLED_FOLDER)/../include"; \
+		mkdir -p $(LIKWID_FOLDER); \
+		cp $$BASE/*.h $(LIKWID_FOLDER); \
+	else \
+		BUILD_FOLDER="$${PWD}/likwidbuild"; \
+		if [ -d $(LIKWID_FOLDER) ]; then rm -r $(LIKWID_FOLDER); fi; \
+		mkdir --parents --verbose  $(LIKWID_FOLDER) $${BUILD_FOLDER}; \
+		wget -P "$${BUILD_FOLDER}" ftp://ftp.rrze.uni-erlangen.de/mirrors/likwid/likwid-$(LIKWID_VERSION).tar.gz; \
+		tar -C $${BUILD_FOLDER} -xf $${BUILD_FOLDER}/likwid-$(LIKWID_VERSION).tar.gz; \
+		install -Dpm 0644 $${BUILD_FOLDER}/likwid-$(LIKWID_VERSION)/src/includes/likwid*.h $(LIKWID_FOLDER)/; \
+		install -Dpm 0644 $${BUILD_FOLDER}/likwid-$(LIKWID_VERSION)/src/includes/bstrlib.h $(LIKWID_FOLDER)/; \
+		rm -r $${BUILD_FOLDER}; \
+	fi
 
 
 clean: