Improve makefile and silence false warning3.0.1

Signed-off-by: Mattias Andrée <maandree@kth.se>

3 files changed, 6 insertions, 4 deletions

diff --git a/Makefile b/Makefile
index 0fc98f5..f756909 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ include $(CONFIGFILE)
 all: bfind
 
 bfind.o: bfind.c arg.h
-	$(CC) -c -o $@ bfind.c $(CPPFLAGS) $(CFLAGS)
+	$(CC) -c -o $@ bfind.c $(CFLAGS) $(CPPFLAGS)
 
 bfind: bfind.o
 	$(CC) -o $@ bfind.o $(LDFLAGS)
@@ -23,6 +23,6 @@ uninstall:
 	-rm -f -- "$(DESTDIR)$(MANPREFIX)/man1/bfind.1"
 
 clean:
-	-rm -rf -- bfind *.o
+	-rm -rf -- bfind *.o *.su
 
 .PHONY: all install uninstall clean
diff --git a/bfind.c b/bfind.c
index 323ee73..7ca2001 100644
--- a/bfind.c
+++ b/bfind.c
@@ -217,7 +217,7 @@ main(int argc, char *argv[])
 {
 	char ending = '\n', *path;
 	struct stat st;
-	dev_t start_dev;
+	dev_t start_dev = 0; /* compiler incorrectly thinks its may be uninitialised if not assigned */
 	size_t i;
 
 	ARGBEGIN {
diff --git a/config.mk b/config.mk
index 7c93a9a..2176f52 100644
--- a/config.mk
+++ b/config.mk
@@ -1,6 +1,8 @@
 PREFIX    = /usr
 MANPREFIX = $(PREFIX)/share/man
 
+CC = cc
+
 CPPFLAGS  = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700 -D_GNU_SOURCE
-CFLAGS    = -std=c99 -Wall
+CFLAGS    = -std=c99 -Wall -O2
 LDFLAGS   =