Makefile: add POSIX target, respect (packaging) system CFLAGS/LDFLAGS

this also makes packaging slightly simpler.

2 files changed, 16 insertions, 10 deletions

diff --git a/Makefile b/Makefile
index 3c09fee..382c2a5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,5 @@
+.POSIX:
+
 include config.mk
 
 NAME = sfeed
@@ -58,10 +60,10 @@ OBJ = ${SRC:.c=.o} ${LIBXMLOBJ} ${LIBUTILOBJ}
 ${OBJ}: config.mk ${HDR}
 
 .o:
-	${CC} ${LDFLAGS} -o $@ $< ${LIB}
+	${CC} ${SFEED_LDFLAGS} -o $@ $< ${LIB}
 
 .c.o:
-	${CC} ${CFLAGS} ${CPPFLAGS} -o $@ -c $<
+	${CC} ${SFEED_CFLAGS} ${SFEED_CPPFLAGS} -o $@ -c $<
 
 ${LIBUTIL}: ${LIBUTILOBJ}
 	${AR} rc $@ $?
diff --git a/config.mk b/config.mk
index 79af98d..673cfd8 100644
--- a/config.mk
+++ b/config.mk
@@ -9,16 +9,20 @@ CC = cc
 AR = ar
 RANLIB = ranlib
 
+# use system flags.
+SFEED_CFLAGS = ${CFLAGS}
+SFEED_LDFLAGS = ${LDFLAGS}
+SFEED_CPPFLAGS = -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700 -D_BSD_SOURCE
+
 # debug
-#CFLAGS = -fstack-protector-all -O0 -g -std=c99 -Wall -Wextra -pedantic
-#LDFLAGS =
+#SFEED_CFLAGS = -fstack-protector-all -O0 -g -std=c99 -Wall -Wextra -pedantic \
+#               -Wno-unused-parameter
+#SFEED_LDFLAGS =
 
 # optimized
-CFLAGS = -O2 -std=c99
-LDFLAGS = -s
+#SFEED_CFLAGS = -O2 -std=c99
+#SFEED_LDFLAGS = -s
 
 # optimized static
-#CFLAGS = -static -O2 -std=c99
-#LDFLAGS = -static -s
-
-CPPFLAGS = -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700 -D_BSD_SOURCE
+#SFEED_CFLAGS = -static -O2 -std=c99
+#SFEED_LDFLAGS = -static -s