build: Don't set CC twice.

[osl.git] / Makefile

diff --git a/Makefile b/Makefile
index 7f598d548b6f62ee8d92fa66256642c3233578d9..66745146bfabff1e9bbc947cdbcfeaec1b9959a1 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -22,9 +22,6 @@ executables := oslfsck
 man_pages := oslfsck.1
 
 INSTALL := install
-ifeq "$(origin CC)" "default"
-        CC := cc
-endif
 MKDIR := mkdir -p
 RM := rm -f
 LN := ln
@@ -83,12 +80,20 @@ ifeq ($(findstring clean, $(MAKECMDGOALS)),)
 -include $(deps)
 endif
 
-# List osl.h in the prerequisites to make sure we generate it before attempting
-# to run the compiler. This matters only when the .d file does not exist.
-%.o: %.c osl.h Makefile errtab.h
+# The files to generate before attempting to run the compiler. These
+# are the order-only prerequisites in the rule below.
+pre_deps := osl.h errtab.h oslfsck.lsg.h
+
+# The .d and .o files are both created from a single cc invocation.
+define CC_CMD
        $(CC) $(OSL_CPPFLAGS) $(CPPFLAGS) \
-               -c -MMD -MF $(*F).d -MT $@ \
+               -c -MMD -MF $(*F).d -MT $(*F).o \
                $(OSL_CFLAGS) $(CFLAGS) $<
+endef
+%.o: %.c Makefile | $(pre_deps)
+       $(CC_CMD)
+%.d: %.c Makefile | $(pre_deps)
+       $(CC_CMD)
 
 fsck.o: oslfsck.lsg.h
 oslfsck: $(fsck_objects)
@@ -150,8 +155,9 @@ www: web/index.html web/osl.png web/api.html
 web/osl.png: web/osl.pdf Makefile
        convert -scale 200x200 $< $@
 
-web/index.html: oslfsck.1 web/index.html.in INSTALL README QUICK_START
-       sed -e '/@README@/,$$d' web/index.html.in > $@
+web/index.html: oslfsck.1 web/header.html web/index.html.in INSTALL README QUICK_START
+       cat web/header.html > $@
+       sed -e '/@README@/,$$d' web/index.html.in >> $@
        markdown < README >> $@
        sed -e '1,/@README@/d' -e '/@INSTALL@/,$$d' web/index.html.in >> $@
        markdown < INSTALL >> $@