--- Makefile.orig	2011-09-15 15:43:52.000000000 -0700
+++ Makefile	2011-09-15 15:44:01.000000000 -0700
@@ -1,8 +1,8 @@
 VERSION=1.30
 
-CFLAGS = -g -O2 -Werror -Wall -Wshadow -Wextra -Wmissing-declarations -Wdeclaration-after-statement -Wredundant-decls
+CFLAGS += -Wall -Wshadow -Wextra -Wmissing-declarations -Wdeclaration-after-statement -Wredundant-decls `pkg-config --cflags libpci`
 LDFLAGS = -Wl,-z,relro,-z,now
-CC = gcc
+CC ?= gcc
 
 SHELL = /bin/sh
 
@@ -91,7 +91,7 @@
 X86INFO_OBJS = $(X86INFO_SRC:%.c=%.o)
 
 x86info: $(X86INFO_OBJS)
-	$(CC) $(CFLAGS) $(LDFLAGS) -o x86info $(X86INFO_OBJS) -lpci
+	$(CC) $(CFLAGS) $(LDFLAGS) -o x86info $(X86INFO_OBJS) `pkg-config --libs libpci` -lpci