From 5cfc4ab468ba1db38024985a3005e19ae58ba26e Mon Sep 17 00:00:00 2001
From: NunoSempere <nuno.sempere@protonmail.com>
Date: Mon, 29 May 2023 17:47:52 -0400
Subject: [PATCH] tweak: link math library.

---
 C-optimized/makefile  | 8 +++++---
 C-optimized/samples.c | 4 ++--
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/C-optimized/makefile b/C-optimized/makefile
index 9a3b62c7..ba66a0a3 100644
--- a/C-optimized/makefile
+++ b/C-optimized/makefile
@@ -21,14 +21,14 @@ STANDARD=-std=c99
 WARNINGS=-Wall
 OPTIMIZED=-O3 #-O3 actually gives better performance than -Ofast, at least for this version
 OPENMP=-fopenmp
-
+MATH=-lm
 ## Formatter
 STYLE_BLUEPRINT=webkit
 FORMATTER=clang-format -i -style=$(STYLE_BLUEPRINT)
 
 ## make build
 build: $(SRC)
-	$(CC) $(OPTIMIZED) $(DEBUG) $(OPENMP) $(SRC) -o $(OUTPUT)
+	$(CC) $(OPTIMIZED) $(DEBUG) $(OPENMP) $(SRC) $(MATH) -o $(OUTPUT)
 	
 #fast: Has been removed, compilation of "build" is very fast and it outputs optimized code by default
 
@@ -36,6 +36,7 @@ format: $(SRC)
 	$(FORMATTER) $(SRC)
 
 run: $(SRC) $(OUTPUT)
+	./$(OUTPUT)
 #	echo "Increasing stack size limit, because we are dealing with 1M samples"
 #	# ulimit: increase stack size limit
 #	# -Ss: the soft limit. If you set the hard limit, you then can't raise it
@@ -43,7 +44,8 @@ run: $(SRC) $(OUTPUT)
 #	# Then run the program
 #	ulimit -Ss 256000 && ./$(OUTPUT)
 
-
+linux:
+	sudo apt-get install libomp-dev
 
 # Old:
 # Link libraries, for good measure
diff --git a/C-optimized/samples.c b/C-optimized/samples.c
index 9b2be9c4..931c4320 100644
--- a/C-optimized/samples.c
+++ b/C-optimized/samples.c
@@ -258,11 +258,11 @@ int main() {
     float (*samplers[])(void) = {sample_0, sample_1, sample_few, sample_many};
 
     mixture_f(samplers, weights, n_dists, dist_mixture, n_threads);
-    // printf("Sum(dist_mixture, N)/N = %f\n", split_array_sum(dist_mixture, N, n_threads) / N);
+    printf("Sum(dist_mixture, N)/N = %f\n", split_array_sum(dist_mixture, N, n_threads) / N);
 
     end = clock();
     split_array_free(dist_mixture, n_threads);
 
     printf("Total time (ms): %f\n", ((double) (end-start)) / CLOCKS_PER_SEC * 1000);
     return 0;
-}
\ No newline at end of file
+}