From d4c6267e4f8b28df6c98e1c6c5cb90021ce3665d Mon Sep 17 00:00:00 2001
From: Matt Turner <mattst88@gmail.com>
Date: Tue, 24 Mar 2020 23:21:25 -0700
Subject: Always build with -fPIC

The dladdr(3) explains that dladdr often doesn't do what you expect
because the function pointer will point to the PLT entry in the original
object and not the actual function itself.
---
 Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 22ee038..c551882 100644
--- a/Makefile
+++ b/Makefile
@@ -19,6 +19,7 @@
 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 # IN THE SOFTWARE.
 
+CFLAGS += -fPIC
 LDLIBS = -ldl
 LDFLAGS = -Wl,--build-id=sha1
 GREP_SHA1 = egrep -o '\b[0-9a-f]{40}\b'
@@ -35,7 +36,7 @@ dlopen-build-id: dlopen-test.o
 	$(CC) $(LDFLAGS) $^ -o $@ $(LDLIBS)
 
 shared-build-id.o: build-id.c
-	$(CC) $(CPPFLAGS) $(CFLAGS) -fPIC -c $^ -o $@
+	$(CC) $(CPPFLAGS) $(CFLAGS) -c $^ -o $@
 
 libbuild-id.so: shared-build-id.o
 	$(CC) $(LDFLAGS) -shared $^ -o $@ $(LDLIBS)
-- 
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